CA2087130C - Tampon applicator - Google Patents
Tampon applicator Download PDFInfo
- Publication number
- CA2087130C CA2087130C CA002087130A CA2087130A CA2087130C CA 2087130 C CA2087130 C CA 2087130C CA 002087130 A CA002087130 A CA 002087130A CA 2087130 A CA2087130 A CA 2087130A CA 2087130 C CA2087130 C CA 2087130C
- Authority
- CA
- Canada
- Prior art keywords
- holder
- layer
- paper layer
- end portion
- tampon
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/20—Tampons, e.g. catamenial tampons; Accessories therefor
- A61F13/26—Means for inserting tampons, i.e. applicators
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/15203—Properties of the article, e.g. stiffness or absorbency
- A61F13/15211—Properties of the article, e.g. stiffness or absorbency soluble or disintegratable in liquid
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/15203—Properties of the article, e.g. stiffness or absorbency
- A61F13/15211—Properties of the article, e.g. stiffness or absorbency soluble or disintegratable in liquid
- A61F2013/15235—Properties of the article, e.g. stiffness or absorbency soluble or disintegratable in liquid by its solubility in water
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S604/00—Surgery
- Y10S604/904—Tampons
Abstract
An insertion device 10 for inserting material 13 into a body cavity is provided. An elongate, tubular holder 12, shaped for insertion into the body cavity, is adapted to hold the material to be inserted. The holder 12 has a material expulsion end portion 14 and a plunger 20, which is telescopically and slidably mounted in the holder, which is adapted to expel the material from the holder when pushed manually into the holder. The holder, and preferably the plunger as well, comprises an outer paper layer 28 and a polymer layer, preferably a cellophane layer 30, adhered to the paper.layer on its outer surface, the layer having adequate water resistance to maintain its integrity during insertion into the body cavity.
Description
~o~~ ~~a ATTORNEY DOCKET NOt 01677/014001 TAtyIIPON APP~LIOATOR
Backctround of the Invention The invention relates to an insertion device, e.g.
a tampon applicator, formed from a paper laminate.
Tampon applicators comprising a pair of telescopically arranged tubes are long known in the art.
Some applicators have the tampon exposed at the end intended for vaginal insertion (the expulsion endj.
Others provide a rounded expulsion end, with the tampon covered by a plurality of °'petals°° which open during tampon expulsion.
Properties considered when selecting a material for the applicator include slip characteristics of the outer sheet material's surface, far ease and comfort of the user during insertion of applicator, water resistance, flushability, delamination, biodegradability and aesthetic appearance.
Applicators have long been manufactured by spirally winding a number of paper layers about a mandrel, gluing each layer to the previous one to form a tubular shape. One such applicator comprises two adjacent layers of ground wood paper and an outer layer of bleached Kraft paper, coated with a waxJclay coata.ng.
Known advantages of such laminated paper applicators are their ability to delaminate when exposed to water, tl~ius making them flushable, and their greater biodegradability.
Paper, however, is inferior to plastics in tampon applicators in several respects. Plastics have better slip characteristics and a glossier, more aesthetic appearance than conventional paper products.
Additionally, it is difficult to form raised or indented areas in a paper tube without cracking, splitting or ~~~~130 shearing, whereas plastic can easily be molded to a desired shape.
Summary of the Invention We have discovered that a laminated paper insertion device, comprising telescopically disposed applicator tubes, can be greatly improved in a variety of respects by adhering a layer of cellophane to the exteriar.surface of one or more of the applicator tubes, and providing the cellophane with moisture resistance, e.g., by coating it with a moisture resistant material such as nitrocellulose. The moisture-resistant cellophane provides improved slip characteristics, for ease of insertion and greater user comfort, and a more aesthetically pleasing product, all without loss of flushabili~ty (i.e., its ability to delaminate when placed in water) or biodegradability.
In preferred embodiments, the paper layer immediately beneath the cellophane is a white paper, that warks in canjunction with the smooth surface provided by the cellophane to provide the aesthetic appearance of the product. The improvement in appearance of the paper surface is such that the appearance approaches that.of plastic applicators in smoothness arid sheen.
In one. aspect, the invention provides an insertion device for inserting material into a body cavity comprising:
an elongate, tubular holder shaped for insertion into the body cavity, adapted to hold the material to be inserted, and having a material expulsion end portion; and a plunger, telescopically and slidably mounted in said holder distal to said expulsion end and adapted to expel said material from said holder when - 2a~~~~~
pushed manually into said holder; wherein said holder comprises an outer paper layer and a cellophane layer adhered to said paper layer on an outer. surface of said paper layer, said cellophane layer having adequate water resistance to maintain its integrity during insertion into -the body cavity.
In a further aspect, the invention provides an insertion device comprising: an elongate tubular holder shaped for insertion into.a body cavity, adapted to contain a material for insertion into the cavity, and having an expulsion end portion and a gripping end portion distal the expulsion end portion, and at least one ra_i.sed formation at the gripping end portion to form a finger grip for said holder, said formation having a radius of curvature of less than about 0.060 inches and a height of greater than about 0.010 inches and being integral with said holder; and a plunger, telescopically and slidably mounted in said holder at the gripping end and adapted to expel said material from said holder when pushed manually into said holder; wherein said holder comprises an outer paper Layer and a polymer layer selected from the group consisting of cellophane films, polyethylene films, polypropylene films, polyester films, polycaprolactone films and ethylene vinyl acetate films bonded to said outer paper layer on an outer surface of said outer paper layer.
The insertion tube of the invention is suitable for use in a variety of applications, e.g. as a 'tampon applicator, or a device for the application of suppositories, creams or the like to the vaginal area or other body cavities.
~a~~130 - 2b -Accordingly, another aspect of the invention provides an insertion device comprising: an elongate tubular holder shaped for insertion into a body cavity, adapted to contain a material for insertion into the cavity, and having an expulsion end portion and a gripping end portion distal the expulsion end portion, and at least one raised formation at the gripping end portion to form a finger grip for said holder, said formation having a radius of curvature of less than about 0.060 inches and a height of greater than about 0.010 inches and being integral with said holder; and a plunger, telescopically and slidably mounted in said holder at -the gripping end and adapted to expel said material from said holder when pushed manually into said holder; wherein said holder comprises an outer paper layer and a polymer layer selected from 'the group consisting of cellophane films, polyethylene films, polypropylene films, polyester films' polycaprolactone films and ethylene vinyl acetate films bonded to said outer paper layer on an outer surface of said outer paper layer, wherein said material is a tampon and said holder is shaped for vaginal insertion.
It is also preferred to use the new cellophane layer on the exterior surface of the inner tube, or plunger, of the applicator, for its use in that location reduces friction between the plunger and the outer tube of the applicator.
Reduced friction between the tubes has been found to be important, for when the outer tube is squeezed tightly during insertion. significant frictional forces can devc=_lop between the plunger and outer tube, thus increasing insertion fox-ce.
In another aspect of the invention, improved rings are embossed in a paper laminate applicator by adhering a polymer layer to the uncaerlying paper mater ial , and then embossing the laminated polymer/paper material. 'rhe polymer is selected from the group consist:img of :cellophane films, polyethylene films, pol~;rpropylene films, polyester films, polycaprolacto:ne films and ethylene vinyl acetate films.
The improved embossed rings have much greater definition than has been ;provided in conventional paper-laminate applicators. Preferably, the radius of curvature of the embossed rings is less t:r:~an about 0_060 inches, more preferably less than ab~m.:u~ C; . Or~S zn~:hes, and most preferably less than about O.U50 inches, and the height of the rings is preferably at least 0.010 inches, and more preferably at least 0.015 inches. The improved rings can be used to form a more positive finger ~~x-ip on theexterior of t:he applicator and/or improved retention formations on the inner and outer tube's for prevre~r~t_i.ng the tubes from :inadvertently being separated during usc~.
In a. further a:~pect of the invention, there is provided an in.~~ertion device for inserting a tampon material into the vagina comprising: an elongate, tubular holder shaped for insertion into the vagina, adapted r_o hold the tampon to be inserted, anc~ having am expulsion en.d portion;
and a plunger, telesco~~ic:m:l:l.~r anci slidably mounted in said holder distal t:o said e:xpu:l~~ion end and adapted to expel said tampon from said holder when pushed manually into said holder; wherein said holder comprises an outer polymer film 3a layer adhered i~o an outE:>r surface of an underlying paper layer, and the ;polymer film layer having an outer surface and an inner surface, substantially all of the area of said inner surface being sup~;~orted by and adhered to said outer surface of said underlying paper layer, said polymer film layer comprising a polymer selected from the group consisting of ~~ellophanE:,, polypropylene, polyester, polycaprolacto:ne, and el: hylene v:~ ny=L acetate, ~nc~ hav.ing a WVTR of less than 1.00 g; ~r.J,~day, so that tlne polymer layer has adequate water resistance to maintain its integrity during insertion into the body cavity, saic:l polymer film being capable of separation fx~cm said underlying paper :layer as an intact, self-supporting layer.
In a further aspect of the invention, there is provided a tampon applicator comprising: an elongate tubular holder shaped for vaginal. insertion, adapted to wontain a tampon, and having an ex~>ul.sion end portion and a gripping end portion distal the expulsion end portion, and at least one raised formation at the gripping end portion to form a finger grip for said holder, said r;~ised formation being unitary with said holder; and a plunger, telescopically and slidably mounted in sa.i.d holder at said gripping end and adapted to expel said tampon from said holder when pushed manually into ;aid holder, wherein said holder comprises an outer polymer film layer adhered to an outer surface of an underlying paper layer, said polymer film layer comprising a polymer selected from the group consisting of cellophane, polyethylene, polypropy:Lene, polyester, polycaprolactone and ethylene vinyl acetate, ;paid polymer. firm layer being capable of sep~iration from said underlying paper layer as an intact, self-~;uppo.rting :L<~yer.
In a further aspect of the invention, there is provided a tampon applicator comprising: an elongate tubular 3b holder shaped :Eor vagim:~.l insertion, adapted t:o contain a tampon, and having an e:~.puls.ion en.d porti:an and a gripping end portion dio~tal the <:expulsion encf portion, and at least one deformation at the <dripping end portion to form a finger grip for said Jzolder, sa:~id deformation being unit=ary with said holder; a:zd a plun<.~er~, telescopically and slidably mounted in sai~3 holder ~:rt said gripping end and adapted to expel said tamr~on from ~:~aid holder. when pushed m<~nually into said holder; wherein sa:i.d. rvo7.der comprises an outer polymer film layer adhered to am outer surface of an underlying paper layer, said polymer film layer being capable of separation from said underlying paper layer as an intact, self-supporting layer.
In a further a~;pect of the invention, there is provided an insertion df=vice for :in;~ertin.g a tampon material into the vagina comprising: an elongate, tubular holder shaped for insertion into the vagina, adapted to hold the tampon to be ir..serted, and having a:n expulsion end portion;
and a plunger, telescopically and slidably mounted in said holder distal t.o said expulsion end and adapted to expel said tampon from said ho7.cier when pushed manually into said holder; wherein said ho:l_der_ c.omprwiscs an outer palymer film layer adhered icy an inter=mediate :i.a~rrer to an outer surface of an underlying paper :Lt~yer, and the polymer film layer having an oute:z- surface and an inner surface, substantially all of the area of said. inner surface being supported by and adhered to said outer surface of said underlying paper layer, said po?_ymer film layer comprising a polymer selected from the group consisting of cellophane, polypropylene, polyester, pol.~rcaprolact.one, and ethylene vinyl acetate, and having a VJVTR of less than 100 g/m2/day, so that the polymer layer has adequate water resistance to maintain i_ts integrity during insertion into the body cavity.
3c In a further ~:~spect of the invention, there is provided a tampon applzc:~ator comprising: an elongate tubular holder shaped :Eor vagim;~.l insertian, adapted to cantain a tampon, and having an expulsion end portion and a gripping end portion distal the expulsion end portion, and at least one raised formation at the gripping end portion to form a finger grip fo:r said holder, said raised formation being unitary with said holder; and a plunger, telescopically and slidably mounted in sait:l holder at ,paid gripping end and adapted to expel said t<~rnpan from said holder when pushed manually into said hold~~r~; wherein said holder comprises an outer polymer film layer adhered by an intermediate layer to an outer surface of an ~.zr.~der.lying paper layer, said polymer film layer comprising a polymer selected from the group consisting of cellophane, polyethylene, polypropylene, polyester, polycapr_olat,:~ne and etlay~ene vinyl acetate.
In a further a~~pect of th~~ invention, there is provided a tampon applic~it-~or comprising: an elongate tubular holder shaped for vaginal. insertion, adapted to contain a tampon, and having an expulsion end portion and a gripping end portion dit~tal the expulsion end portion, and at least one deformation at the gripping end portion to form a finger grip for said holder, sa_d deformation being unitary with said holder; and a plunge: r, telescopically and slidably mounted in said holder at. said gripping end and adapted to expel said tampon from said holder when pushed manually into said holder; wherein said holder comprises an outer polymer film layer adhered by an intermediate layer to a.r.: outer surface of an underlying ~;aper layer.
In a further aspect of the invention, there is provided a tampon applicator for ir~serting a tampon into the vagina, compri;~ing: an elongate, tubular holder shaped for insertion into the vagina, adapted to hold the tampon to be 3d inserted, and having an expulsion end portion and a gripping end portion distal the expulsion end portion, and at least one deformation. at the ,~x~ipping e:nd portion to form a finger grip for said holder, s~:~id deformation being unitary with said holder; anal a plunger, telescopically and slidably mounted in saic. holder at: said gripping end and adapted to expel said tampon from said holder when pushed manually into said holder; wr.erein said holder comprises a laminate of an outer polymer film attacrued t:.o the :_~uten surface of an underlying paper layer with an adhesive.
In a further a:~pect of the invention, there is provided a tarr~pon applicator for inserting a tampon into the vagina, comprising: an elongate, tubular holder shaped for insertion into the vagina, adapted to hold the tampon to be inserted, and having an expulsion end portion and a gripping end portion di:~tal the e~cpu~sion end portion, and at least one deformation at the ~~r:ipping end port=ion to form a finger grip for said holder, sa:Ld deformation being unitary with said holder; and a plunger, telescopically and slidably mounted in said holder at-_ said gripping end and adapted to expel said tampon from said holder when pushed manually into said holder; wherein sa.ici holder comprises a laminate of an outer polymer j=ilm indi.rc~ctly attached to the outer surface of an underlying paper 1<~yer through an intermediate layer to said paper :Layer.
In a further aspect of the invention, there is provided a tampon appla.c,~tor for inserting a tampon into a vagina, the applicator c~amprising an elongate, tubular holder compri~~.ing a laminate of an outer polymer film attached to ate least a portion of an underlying paper layer, the laminate having an embossed formation, the tubular holder furtheo comprisa.ng an adhes~.~ve which adheres the polymer film 1~~~ the paper layer.
3e The .invention can provide embossed formations (e. g., rings) ~~hat, if attempted in conventional paper applications, would tenc:~ too rip, shear, or otherwise damage the laminated paper. Tl°ie invention permits outwardly embossed rings to be formed on the applicator tubes, something not conventionally found ~.n paper applicators, and improves the overall ability of the paper to be worked, i.e.
formed into pevals, grog>ves and the like.
Backctround of the Invention The invention relates to an insertion device, e.g.
a tampon applicator, formed from a paper laminate.
Tampon applicators comprising a pair of telescopically arranged tubes are long known in the art.
Some applicators have the tampon exposed at the end intended for vaginal insertion (the expulsion endj.
Others provide a rounded expulsion end, with the tampon covered by a plurality of °'petals°° which open during tampon expulsion.
Properties considered when selecting a material for the applicator include slip characteristics of the outer sheet material's surface, far ease and comfort of the user during insertion of applicator, water resistance, flushability, delamination, biodegradability and aesthetic appearance.
Applicators have long been manufactured by spirally winding a number of paper layers about a mandrel, gluing each layer to the previous one to form a tubular shape. One such applicator comprises two adjacent layers of ground wood paper and an outer layer of bleached Kraft paper, coated with a waxJclay coata.ng.
Known advantages of such laminated paper applicators are their ability to delaminate when exposed to water, tl~ius making them flushable, and their greater biodegradability.
Paper, however, is inferior to plastics in tampon applicators in several respects. Plastics have better slip characteristics and a glossier, more aesthetic appearance than conventional paper products.
Additionally, it is difficult to form raised or indented areas in a paper tube without cracking, splitting or ~~~~130 shearing, whereas plastic can easily be molded to a desired shape.
Summary of the Invention We have discovered that a laminated paper insertion device, comprising telescopically disposed applicator tubes, can be greatly improved in a variety of respects by adhering a layer of cellophane to the exteriar.surface of one or more of the applicator tubes, and providing the cellophane with moisture resistance, e.g., by coating it with a moisture resistant material such as nitrocellulose. The moisture-resistant cellophane provides improved slip characteristics, for ease of insertion and greater user comfort, and a more aesthetically pleasing product, all without loss of flushabili~ty (i.e., its ability to delaminate when placed in water) or biodegradability.
In preferred embodiments, the paper layer immediately beneath the cellophane is a white paper, that warks in canjunction with the smooth surface provided by the cellophane to provide the aesthetic appearance of the product. The improvement in appearance of the paper surface is such that the appearance approaches that.of plastic applicators in smoothness arid sheen.
In one. aspect, the invention provides an insertion device for inserting material into a body cavity comprising:
an elongate, tubular holder shaped for insertion into the body cavity, adapted to hold the material to be inserted, and having a material expulsion end portion; and a plunger, telescopically and slidably mounted in said holder distal to said expulsion end and adapted to expel said material from said holder when - 2a~~~~~
pushed manually into said holder; wherein said holder comprises an outer paper layer and a cellophane layer adhered to said paper layer on an outer. surface of said paper layer, said cellophane layer having adequate water resistance to maintain its integrity during insertion into -the body cavity.
In a further aspect, the invention provides an insertion device comprising: an elongate tubular holder shaped for insertion into.a body cavity, adapted to contain a material for insertion into the cavity, and having an expulsion end portion and a gripping end portion distal the expulsion end portion, and at least one ra_i.sed formation at the gripping end portion to form a finger grip for said holder, said formation having a radius of curvature of less than about 0.060 inches and a height of greater than about 0.010 inches and being integral with said holder; and a plunger, telescopically and slidably mounted in said holder at the gripping end and adapted to expel said material from said holder when pushed manually into said holder; wherein said holder comprises an outer paper Layer and a polymer layer selected from the group consisting of cellophane films, polyethylene films, polypropylene films, polyester films, polycaprolactone films and ethylene vinyl acetate films bonded to said outer paper layer on an outer surface of said outer paper layer.
The insertion tube of the invention is suitable for use in a variety of applications, e.g. as a 'tampon applicator, or a device for the application of suppositories, creams or the like to the vaginal area or other body cavities.
~a~~130 - 2b -Accordingly, another aspect of the invention provides an insertion device comprising: an elongate tubular holder shaped for insertion into a body cavity, adapted to contain a material for insertion into the cavity, and having an expulsion end portion and a gripping end portion distal the expulsion end portion, and at least one raised formation at the gripping end portion to form a finger grip for said holder, said formation having a radius of curvature of less than about 0.060 inches and a height of greater than about 0.010 inches and being integral with said holder; and a plunger, telescopically and slidably mounted in said holder at -the gripping end and adapted to expel said material from said holder when pushed manually into said holder; wherein said holder comprises an outer paper layer and a polymer layer selected from 'the group consisting of cellophane films, polyethylene films, polypropylene films, polyester films' polycaprolactone films and ethylene vinyl acetate films bonded to said outer paper layer on an outer surface of said outer paper layer, wherein said material is a tampon and said holder is shaped for vaginal insertion.
It is also preferred to use the new cellophane layer on the exterior surface of the inner tube, or plunger, of the applicator, for its use in that location reduces friction between the plunger and the outer tube of the applicator.
Reduced friction between the tubes has been found to be important, for when the outer tube is squeezed tightly during insertion. significant frictional forces can devc=_lop between the plunger and outer tube, thus increasing insertion fox-ce.
In another aspect of the invention, improved rings are embossed in a paper laminate applicator by adhering a polymer layer to the uncaerlying paper mater ial , and then embossing the laminated polymer/paper material. 'rhe polymer is selected from the group consist:img of :cellophane films, polyethylene films, pol~;rpropylene films, polyester films, polycaprolacto:ne films and ethylene vinyl acetate films.
The improved embossed rings have much greater definition than has been ;provided in conventional paper-laminate applicators. Preferably, the radius of curvature of the embossed rings is less t:r:~an about 0_060 inches, more preferably less than ab~m.:u~ C; . Or~S zn~:hes, and most preferably less than about O.U50 inches, and the height of the rings is preferably at least 0.010 inches, and more preferably at least 0.015 inches. The improved rings can be used to form a more positive finger ~~x-ip on theexterior of t:he applicator and/or improved retention formations on the inner and outer tube's for prevre~r~t_i.ng the tubes from :inadvertently being separated during usc~.
In a. further a:~pect of the invention, there is provided an in.~~ertion device for inserting a tampon material into the vagina comprising: an elongate, tubular holder shaped for insertion into the vagina, adapted r_o hold the tampon to be inserted, anc~ having am expulsion en.d portion;
and a plunger, telesco~~ic:m:l:l.~r anci slidably mounted in said holder distal t:o said e:xpu:l~~ion end and adapted to expel said tampon from said holder when pushed manually into said holder; wherein said holder comprises an outer polymer film 3a layer adhered i~o an outE:>r surface of an underlying paper layer, and the ;polymer film layer having an outer surface and an inner surface, substantially all of the area of said inner surface being sup~;~orted by and adhered to said outer surface of said underlying paper layer, said polymer film layer comprising a polymer selected from the group consisting of ~~ellophanE:,, polypropylene, polyester, polycaprolacto:ne, and el: hylene v:~ ny=L acetate, ~nc~ hav.ing a WVTR of less than 1.00 g; ~r.J,~day, so that tlne polymer layer has adequate water resistance to maintain its integrity during insertion into the body cavity, saic:l polymer film being capable of separation fx~cm said underlying paper :layer as an intact, self-supporting layer.
In a further aspect of the invention, there is provided a tampon applicator comprising: an elongate tubular holder shaped for vaginal. insertion, adapted to wontain a tampon, and having an ex~>ul.sion end portion and a gripping end portion distal the expulsion end portion, and at least one raised formation at the gripping end portion to form a finger grip for said holder, said r;~ised formation being unitary with said holder; and a plunger, telescopically and slidably mounted in sa.i.d holder at said gripping end and adapted to expel said tampon from said holder when pushed manually into ;aid holder, wherein said holder comprises an outer polymer film layer adhered to an outer surface of an underlying paper layer, said polymer film layer comprising a polymer selected from the group consisting of cellophane, polyethylene, polypropy:Lene, polyester, polycaprolactone and ethylene vinyl acetate, ;paid polymer. firm layer being capable of sep~iration from said underlying paper layer as an intact, self-~;uppo.rting :L<~yer.
In a further aspect of the invention, there is provided a tampon applicator comprising: an elongate tubular 3b holder shaped :Eor vagim:~.l insertion, adapted t:o contain a tampon, and having an e:~.puls.ion en.d porti:an and a gripping end portion dio~tal the <:expulsion encf portion, and at least one deformation at the <dripping end portion to form a finger grip for said Jzolder, sa:~id deformation being unit=ary with said holder; a:zd a plun<.~er~, telescopically and slidably mounted in sai~3 holder ~:rt said gripping end and adapted to expel said tamr~on from ~:~aid holder. when pushed m<~nually into said holder; wherein sa:i.d. rvo7.der comprises an outer polymer film layer adhered to am outer surface of an underlying paper layer, said polymer film layer being capable of separation from said underlying paper layer as an intact, self-supporting layer.
In a further a~;pect of the invention, there is provided an insertion df=vice for :in;~ertin.g a tampon material into the vagina comprising: an elongate, tubular holder shaped for insertion into the vagina, adapted to hold the tampon to be ir..serted, and having a:n expulsion end portion;
and a plunger, telescopically and slidably mounted in said holder distal t.o said expulsion end and adapted to expel said tampon from said ho7.cier when pushed manually into said holder; wherein said ho:l_der_ c.omprwiscs an outer palymer film layer adhered icy an inter=mediate :i.a~rrer to an outer surface of an underlying paper :Lt~yer, and the polymer film layer having an oute:z- surface and an inner surface, substantially all of the area of said. inner surface being supported by and adhered to said outer surface of said underlying paper layer, said po?_ymer film layer comprising a polymer selected from the group consisting of cellophane, polypropylene, polyester, pol.~rcaprolact.one, and ethylene vinyl acetate, and having a VJVTR of less than 100 g/m2/day, so that the polymer layer has adequate water resistance to maintain i_ts integrity during insertion into the body cavity.
3c In a further ~:~spect of the invention, there is provided a tampon applzc:~ator comprising: an elongate tubular holder shaped :Eor vagim;~.l insertian, adapted to cantain a tampon, and having an expulsion end portion and a gripping end portion distal the expulsion end portion, and at least one raised formation at the gripping end portion to form a finger grip fo:r said holder, said raised formation being unitary with said holder; and a plunger, telescopically and slidably mounted in sait:l holder at ,paid gripping end and adapted to expel said t<~rnpan from said holder when pushed manually into said hold~~r~; wherein said holder comprises an outer polymer film layer adhered by an intermediate layer to an outer surface of an ~.zr.~der.lying paper layer, said polymer film layer comprising a polymer selected from the group consisting of cellophane, polyethylene, polypropylene, polyester, polycapr_olat,:~ne and etlay~ene vinyl acetate.
In a further a~~pect of th~~ invention, there is provided a tampon applic~it-~or comprising: an elongate tubular holder shaped for vaginal. insertion, adapted to contain a tampon, and having an expulsion end portion and a gripping end portion dit~tal the expulsion end portion, and at least one deformation at the gripping end portion to form a finger grip for said holder, sa_d deformation being unitary with said holder; and a plunge: r, telescopically and slidably mounted in said holder at. said gripping end and adapted to expel said tampon from said holder when pushed manually into said holder; wherein said holder comprises an outer polymer film layer adhered by an intermediate layer to a.r.: outer surface of an underlying ~;aper layer.
In a further aspect of the invention, there is provided a tampon applicator for ir~serting a tampon into the vagina, compri;~ing: an elongate, tubular holder shaped for insertion into the vagina, adapted to hold the tampon to be 3d inserted, and having an expulsion end portion and a gripping end portion distal the expulsion end portion, and at least one deformation. at the ,~x~ipping e:nd portion to form a finger grip for said holder, s~:~id deformation being unitary with said holder; anal a plunger, telescopically and slidably mounted in saic. holder at: said gripping end and adapted to expel said tampon from said holder when pushed manually into said holder; wr.erein said holder comprises a laminate of an outer polymer film attacrued t:.o the :_~uten surface of an underlying paper layer with an adhesive.
In a further a:~pect of the invention, there is provided a tarr~pon applicator for inserting a tampon into the vagina, comprising: an elongate, tubular holder shaped for insertion into the vagina, adapted to hold the tampon to be inserted, and having an expulsion end portion and a gripping end portion di:~tal the e~cpu~sion end portion, and at least one deformation at the ~~r:ipping end port=ion to form a finger grip for said holder, sa:Ld deformation being unitary with said holder; and a plunger, telescopically and slidably mounted in said holder at-_ said gripping end and adapted to expel said tampon from said holder when pushed manually into said holder; wherein sa.ici holder comprises a laminate of an outer polymer j=ilm indi.rc~ctly attached to the outer surface of an underlying paper 1<~yer through an intermediate layer to said paper :Layer.
In a further aspect of the invention, there is provided a tampon appla.c,~tor for inserting a tampon into a vagina, the applicator c~amprising an elongate, tubular holder compri~~.ing a laminate of an outer polymer film attached to ate least a portion of an underlying paper layer, the laminate having an embossed formation, the tubular holder furtheo comprisa.ng an adhes~.~ve which adheres the polymer film 1~~~ the paper layer.
3e The .invention can provide embossed formations (e. g., rings) ~~hat, if attempted in conventional paper applications, would tenc:~ too rip, shear, or otherwise damage the laminated paper. Tl°ie invention permits outwardly embossed rings to be formed on the applicator tubes, something not conventionally found ~.n paper applicators, and improves the overall ability of the paper to be worked, i.e.
formed into pevals, grog>ves and the like.
Hrief Description of the Drawings Fig. 1 is a side view of a tampon applicator according to one embodiment of the invention.
Fig. 2 is a front view of the applicator of Fig.
1, showing the petal-type expulsion end.
Fig. 3 is a side view of the inner tube, or plunger, of the applicator shown in Fig. 1.
Fig. 4 is a partial cross-sectional view of the applicator of Fig. 1, taken along line 4-4.
Fig. 5 is a highly enlarged, fragmentary view of detail 5 in Fig. 6.
Fig. 6 is a cross-sectional side view of the applicator of Fig. 1.
Fig. 7 is a side view of a tampon applicator according to another embodiment of the invention.
Deserit~~ion of the Preferred Embodiments An applicator according to a preferred embodiment of the invention is shown in Figs. 1-6. The applicator comprises tubular tampon holder 12 and plunger 20, telescopically and slidably mounted in holder 12. Tampon 13 is retained within tampon holder 12. Tampon holder 12 has two embossed rings 18 disposed circumferentially around its surface, distal to expulsion end 14.
Expulsion end 14 comprises a plurality of petals 16.
Preferably, a preformed hinge or groove 15 is disposed circumferentially at the base of the petals. Plunger 20 comprises nibs 22, which interlock with the inner surface of either of rings 18, to resist inadvert~:nt separation of the plunger from the tampon holder. Interlocking is assisted by the interference fit (approximately 0.002 inches interference is preferred) between the nibs and a slight depression 21 which is forxaed on either side of the embossed ring during embossing. (See Fig. 5) 'While nibs 22 are shown, these could be replaced by raised areas of any desired shape, including continuous raised rings, provided the interlocking function is provided.
Depressions 21 are typically formed inherently by the embossing process. However, if these depressions are not formed, or not desired, interlocking could be provided by an interference fit between the tampon holder and plunger which would cause nibs 22 to snap into rings 18 and interlock therewith.
Fig. 4 illustrates, in cross-section, the layers of which tampon holder 12 is comprised: ground wood paper inner layers 24 and 25, bleached Kraft outer paper layer 28, and cellophane layer 30 disposed on the outer tube surface. Each of the layers is adhered to adjoining layers by adhesive, preferably a water-based adhesive, to allow the layers to delaminate when the applicator is exposed to water, thereby permitting the applicator to be disposed of by flushing. The water-based adhesive also preserves the biodegradability of the product. Suitable adhesives include, for example, dextrin and polyvinyl acetate, with polyvinyl acetate being preferred for its ability to resist delamination under humid storage conditions. Suitable polyvinyl acetate adhesives are commercially available from Findley Adhesives, Wauwatosa, WI.
It is preferred that both the tampon holder and the plunger have the illustrated construction, although the plunger may be of a different material, e.g. plastic or wax-coated paper, if desired.
Fig. 7 illustrates another type of tampon applicator in which the construction of the invention may be utilized. In this embodiment of the invention, tampon holder 112 is of the open-end type, such that tampon head 113 extends beyond the expulsion end of the holder tube.
Three embossed rings 118 are provided to assure a positive grip.
While two types of applicators have been shown in Figs. 1 and 7, the construction of the invention is useful in many types of applicators, including, e.g., closed-end compact and open-end regular applicators, The cellophane layer may be of any grade of cellophane so long as it has adequate water resistance to maintain its integrity and remain tack-free when used in the invention, i.e. adequate to withstand humid environments for long periods of time, and to withstand Z0 insertion into the vagina, without becoming tacky or dissolving. Accordingly, the term does not refer to pure regenerated cellulose which is free from any additives or coatings, for such material has extremely low water resistance. Suitable cellophanes may contain additives or surface coatings which impart water resistance, with surface coatings being preferred. Preferred water resistant coatings are selected from the group consisting of nitrocellulose and polyvinylidene chloride, with nitrocellulose prQferred for its biodegradability. A
nitrocellulose coated cellophane sheet is commercially available from Flexel, Inc., Atlanta, ~A. Water resistance is typically measured in terms of Water Vapor Transmission Rate (W'VTR). It is preferred that the cellaphane film have a WVTR of less than about 100 g/m2/day. It is preferred that the cellophane layer be thin relative to the paper layer. Preferably the thickness is less than about 0.0420 inches, more preferably less than 0.0009 inches.
It is preferred, for aesthetic reasons, that the outer paper layer be a white paper. Although any conventional white paper may be used, it is preferred that the paper be selected from the group consisting of bleached Kraft paper and bleached sulfite paper. If no other paper layer is to be utilized, the white paper will be selected to have adequate rigidity to provide 6p412-2272 structural strength to the finished tube for its use as a tampon applicator. The paper may contain additional optical brighteners, e.g. stilbene derivatives, and the like to enhance the aesthetic appearance of the laminate.
The brighteners, and overall whiteness of the paper, work in conjunction with the gloss of the cellophane layer to greatly improve the aesthetic appearance of the resulting applicator. Preferred thicknesses for the outer paper layer are in the range of 0.0015 to 0.006 inches, more preferably 0.003 inches.
because most papers have relatively low rigidity, multiple layers are preferably employed in both the tampon holder and plunger. Accordingly, in addition to the outer paper layer, it is preferred that the applicator further comprise at least one inner paper layer. It is preferred that each inner paper layer be an inexpensive, durable paper, e.g. gxound wood paper. It is further preferred that two inner paper layers be provided. Preferred thicknesses for the inner paper layers are in the range of 0.002 to 0.007 inches for each layer, more preferably 0.00625 inches. Other polymers may be used in place of cellophane, although with loss of some of the unique advantages of cellophane for this application. A variety of thermoplastic polymers may be used. The polymers should be capable of being formed into a relatively thin sheet, and be themselves water-resistant or have a coating or additive which imparts water-resistance. Preferred polymers include but are not limited to cellophane, polyethylene, polyester, polypropylene, polycaprolactone, and ethylene vinyl acetate. Any conventional process can be used to form the tube, e.g. spiral or convolute winding of the individual layers, each layer on 'top of the previous layer about a common central axis. Spiral winding is generally preferred. It is also preferred that the seams ~o~~~~o formed in each layer during spiral winding be offset from the seams in other layers. These methods are well known to those skilled in the art.
It is preferred that the embossed rings in the tampon holder be formed by embossing. While any conventional embossing technigue can be utilized, a preferred method is to support the tubu7.ar 'tampon holder on a spinning central mandrel having circumferential ridges in its surface, and contact the surface of the tampon holder with a pair of rolling dies having indentations corresponding in shape to the ridges on the mandrel. It is also preferred that heat be employed during the embossing process to render the cellophane layer more malleable and thus enhance the formahility of the paper.
Tt is preferred that the embossed formations be in the form of rings around the circumference of the tampon holder, as illustrated in the figures.
Preferably, the radius of curvature of the rings (R in Fig. 5) is less than about 0.060 inches, more preferably less than about 0.055 inches; and most preferably less than about 0.050 inches. The height of the rings (H in Fig. 5) is preferably at 3east 0.010 inches, and more preferably at least 0.015 inches.
While preferred embodiments have been described above, other variations and modifications are within the scope of the following claims.
For example, 'the outer paper layer need not be white. Colored paper may be utilized, if desired, provided the paper is compatible with the adhesive used to bond the layers together. Different numbers of gripping rings may be used, or the rings may be replaced with other embossed formations, e.g. dots, longitudinal ridges or ribs of varying dimensions.
Fig. 2 is a front view of the applicator of Fig.
1, showing the petal-type expulsion end.
Fig. 3 is a side view of the inner tube, or plunger, of the applicator shown in Fig. 1.
Fig. 4 is a partial cross-sectional view of the applicator of Fig. 1, taken along line 4-4.
Fig. 5 is a highly enlarged, fragmentary view of detail 5 in Fig. 6.
Fig. 6 is a cross-sectional side view of the applicator of Fig. 1.
Fig. 7 is a side view of a tampon applicator according to another embodiment of the invention.
Deserit~~ion of the Preferred Embodiments An applicator according to a preferred embodiment of the invention is shown in Figs. 1-6. The applicator comprises tubular tampon holder 12 and plunger 20, telescopically and slidably mounted in holder 12. Tampon 13 is retained within tampon holder 12. Tampon holder 12 has two embossed rings 18 disposed circumferentially around its surface, distal to expulsion end 14.
Expulsion end 14 comprises a plurality of petals 16.
Preferably, a preformed hinge or groove 15 is disposed circumferentially at the base of the petals. Plunger 20 comprises nibs 22, which interlock with the inner surface of either of rings 18, to resist inadvert~:nt separation of the plunger from the tampon holder. Interlocking is assisted by the interference fit (approximately 0.002 inches interference is preferred) between the nibs and a slight depression 21 which is forxaed on either side of the embossed ring during embossing. (See Fig. 5) 'While nibs 22 are shown, these could be replaced by raised areas of any desired shape, including continuous raised rings, provided the interlocking function is provided.
Depressions 21 are typically formed inherently by the embossing process. However, if these depressions are not formed, or not desired, interlocking could be provided by an interference fit between the tampon holder and plunger which would cause nibs 22 to snap into rings 18 and interlock therewith.
Fig. 4 illustrates, in cross-section, the layers of which tampon holder 12 is comprised: ground wood paper inner layers 24 and 25, bleached Kraft outer paper layer 28, and cellophane layer 30 disposed on the outer tube surface. Each of the layers is adhered to adjoining layers by adhesive, preferably a water-based adhesive, to allow the layers to delaminate when the applicator is exposed to water, thereby permitting the applicator to be disposed of by flushing. The water-based adhesive also preserves the biodegradability of the product. Suitable adhesives include, for example, dextrin and polyvinyl acetate, with polyvinyl acetate being preferred for its ability to resist delamination under humid storage conditions. Suitable polyvinyl acetate adhesives are commercially available from Findley Adhesives, Wauwatosa, WI.
It is preferred that both the tampon holder and the plunger have the illustrated construction, although the plunger may be of a different material, e.g. plastic or wax-coated paper, if desired.
Fig. 7 illustrates another type of tampon applicator in which the construction of the invention may be utilized. In this embodiment of the invention, tampon holder 112 is of the open-end type, such that tampon head 113 extends beyond the expulsion end of the holder tube.
Three embossed rings 118 are provided to assure a positive grip.
While two types of applicators have been shown in Figs. 1 and 7, the construction of the invention is useful in many types of applicators, including, e.g., closed-end compact and open-end regular applicators, The cellophane layer may be of any grade of cellophane so long as it has adequate water resistance to maintain its integrity and remain tack-free when used in the invention, i.e. adequate to withstand humid environments for long periods of time, and to withstand Z0 insertion into the vagina, without becoming tacky or dissolving. Accordingly, the term does not refer to pure regenerated cellulose which is free from any additives or coatings, for such material has extremely low water resistance. Suitable cellophanes may contain additives or surface coatings which impart water resistance, with surface coatings being preferred. Preferred water resistant coatings are selected from the group consisting of nitrocellulose and polyvinylidene chloride, with nitrocellulose prQferred for its biodegradability. A
nitrocellulose coated cellophane sheet is commercially available from Flexel, Inc., Atlanta, ~A. Water resistance is typically measured in terms of Water Vapor Transmission Rate (W'VTR). It is preferred that the cellaphane film have a WVTR of less than about 100 g/m2/day. It is preferred that the cellophane layer be thin relative to the paper layer. Preferably the thickness is less than about 0.0420 inches, more preferably less than 0.0009 inches.
It is preferred, for aesthetic reasons, that the outer paper layer be a white paper. Although any conventional white paper may be used, it is preferred that the paper be selected from the group consisting of bleached Kraft paper and bleached sulfite paper. If no other paper layer is to be utilized, the white paper will be selected to have adequate rigidity to provide 6p412-2272 structural strength to the finished tube for its use as a tampon applicator. The paper may contain additional optical brighteners, e.g. stilbene derivatives, and the like to enhance the aesthetic appearance of the laminate.
The brighteners, and overall whiteness of the paper, work in conjunction with the gloss of the cellophane layer to greatly improve the aesthetic appearance of the resulting applicator. Preferred thicknesses for the outer paper layer are in the range of 0.0015 to 0.006 inches, more preferably 0.003 inches.
because most papers have relatively low rigidity, multiple layers are preferably employed in both the tampon holder and plunger. Accordingly, in addition to the outer paper layer, it is preferred that the applicator further comprise at least one inner paper layer. It is preferred that each inner paper layer be an inexpensive, durable paper, e.g. gxound wood paper. It is further preferred that two inner paper layers be provided. Preferred thicknesses for the inner paper layers are in the range of 0.002 to 0.007 inches for each layer, more preferably 0.00625 inches. Other polymers may be used in place of cellophane, although with loss of some of the unique advantages of cellophane for this application. A variety of thermoplastic polymers may be used. The polymers should be capable of being formed into a relatively thin sheet, and be themselves water-resistant or have a coating or additive which imparts water-resistance. Preferred polymers include but are not limited to cellophane, polyethylene, polyester, polypropylene, polycaprolactone, and ethylene vinyl acetate. Any conventional process can be used to form the tube, e.g. spiral or convolute winding of the individual layers, each layer on 'top of the previous layer about a common central axis. Spiral winding is generally preferred. It is also preferred that the seams ~o~~~~o formed in each layer during spiral winding be offset from the seams in other layers. These methods are well known to those skilled in the art.
It is preferred that the embossed rings in the tampon holder be formed by embossing. While any conventional embossing technigue can be utilized, a preferred method is to support the tubu7.ar 'tampon holder on a spinning central mandrel having circumferential ridges in its surface, and contact the surface of the tampon holder with a pair of rolling dies having indentations corresponding in shape to the ridges on the mandrel. It is also preferred that heat be employed during the embossing process to render the cellophane layer more malleable and thus enhance the formahility of the paper.
Tt is preferred that the embossed formations be in the form of rings around the circumference of the tampon holder, as illustrated in the figures.
Preferably, the radius of curvature of the rings (R in Fig. 5) is less than about 0.060 inches, more preferably less than about 0.055 inches; and most preferably less than about 0.050 inches. The height of the rings (H in Fig. 5) is preferably at 3east 0.010 inches, and more preferably at least 0.015 inches.
While preferred embodiments have been described above, other variations and modifications are within the scope of the following claims.
For example, 'the outer paper layer need not be white. Colored paper may be utilized, if desired, provided the paper is compatible with the adhesive used to bond the layers together. Different numbers of gripping rings may be used, or the rings may be replaced with other embossed formations, e.g. dots, longitudinal ridges or ribs of varying dimensions.
Claims (53)
1. An insertion device for inserting material into a body cavity comprising:
an elongate tubular holder shaped for insertion into the body cavity, adapted to hold the material to be inserted, and having a material expulsion end portions and a plunger, telescopically and slidably mounted in said holder distal to said expulsion end and adapted to expel said material from said holder when pushed manually into said holder;
wherein said holder comprises an outer paper layer and a cellophane layer adhered to said paper layer on an outer surface of said paper layer, said cellophane layer having adequate water resistance to maintain its integrity during insertion into the body cavity.
an elongate tubular holder shaped for insertion into the body cavity, adapted to hold the material to be inserted, and having a material expulsion end portions and a plunger, telescopically and slidably mounted in said holder distal to said expulsion end and adapted to expel said material from said holder when pushed manually into said holder;
wherein said holder comprises an outer paper layer and a cellophane layer adhered to said paper layer on an outer surface of said paper layer, said cellophane layer having adequate water resistance to maintain its integrity during insertion into the body cavity.
2. The device of claim 1 wherein said material is a tampon and said holder is shaped for vaginal insertion.
3. The device of claim 1 or 2 wherein said plunger comprises an outer paper layer and a cellophane layer adhered to said paper layer on an outer surface of said paper layer.
4, The device of claim 1 or 2 wherein said cellophane layer is adhered to said paper layer by a water-based adhesive.
5. The device of claim 1 wherein said cellophane layer has a water resistant coating on its outer surface.
6. The device of claim 2 wherein said cellophane layer has a water resistant coating on its outer surface.
7. The device of claim 5 or 6 wherein said water resistant coating is selected from the group consisting of nitrocellulose and polyvinylidine chloride.
8. The device of claim 1 or 2 wherein said cellophane layer has a thickness of less than about 0.0020 inches.
9. The device of claim 1 or 2 wherein said cellophane film has a WVTR of less than about 100 g/m2/day.
10. The device of claim 1 wherein said paper layer is a white paper selected from the group consisting of bleached Kraft paper and bleached sulfite paper.
11. The device of claim 2 wherein said paper layer is a white paper selected from the group consisting of bleached Kraft paper and bleached sulfite paper.
12. The device of claim 10 or 11 wherein said white paper is an optically brightened paper.
13. The device of claim 1 or 2 wherein said paper layer is a colored paper.
14. The device of claim 10 wherein said holder further comprises an inner paper layer laminated to an inner surface of said outer paper layer.
15. The device of claim 11 wherein said holder further comprises an inner paper layer laminated to an inner surface of said outer paper layer.
16. An insertion device comprising:
an elongate tubular holder shaped for insertion into a body cavity, adapted to contain a material for insertion into the cavity, and having an expulsion end portion and a gripping end portion distal the expulsion end portion, and at least one raised formation at the gripping end portion to form a finger grip for said holder, said formation having a radius of curvature of less than about 0.060 inches and a height of greater than about 0.010 inches and being integral with said holder; and a plunger, telescopically and slidably mounted in said holder at the gripping end and adapted to expel said material from said holder when pushed manually into said holder;
wherein said holder comprises an outer paper layer and a polymer layer selected from the group consisting of cellophane films, polyethylene films, polypropylene films, polyester films, polycaprolactone films and ethylene vinyl acetate films bonded to said outer paper layer on an outer surface of said outer paper layer.
an elongate tubular holder shaped for insertion into a body cavity, adapted to contain a material for insertion into the cavity, and having an expulsion end portion and a gripping end portion distal the expulsion end portion, and at least one raised formation at the gripping end portion to form a finger grip for said holder, said formation having a radius of curvature of less than about 0.060 inches and a height of greater than about 0.010 inches and being integral with said holder; and a plunger, telescopically and slidably mounted in said holder at the gripping end and adapted to expel said material from said holder when pushed manually into said holder;
wherein said holder comprises an outer paper layer and a polymer layer selected from the group consisting of cellophane films, polyethylene films, polypropylene films, polyester films, polycaprolactone films and ethylene vinyl acetate films bonded to said outer paper layer on an outer surface of said outer paper layer.
17. An insertion device comprising:
an elongate tubular holder shaped for insertion into a body cavity, adapted to contain a material for insertion into the cavity, and having an expulsion end portion and a gripping end portion distal the expulsion end portion, and at least one raised formation at the gripping end portion to form a finger grip for said holder, said formation having a radius of curvature of less than about 0.060 inches and a height of greater than about 0.010 inches and being integral with said holder; and a plunger, telescopically and slidably mounted in said holder at the gripping end and adapted to expel said material from said holder when pushed manually into said holder;
wherein said holder comprises an outer paper layer and a polymer layer selected from the group consisting of cellophane films, polyethylene films, polypropylene films, polyester films, polycaprolactone films and ethylene vinyl acetate films bonded to said outer paper layer on an outer surface of said outer paper layer, wherein said material is a tampon and said holder is shaped for vaginal insertion.
an elongate tubular holder shaped for insertion into a body cavity, adapted to contain a material for insertion into the cavity, and having an expulsion end portion and a gripping end portion distal the expulsion end portion, and at least one raised formation at the gripping end portion to form a finger grip for said holder, said formation having a radius of curvature of less than about 0.060 inches and a height of greater than about 0.010 inches and being integral with said holder; and a plunger, telescopically and slidably mounted in said holder at the gripping end and adapted to expel said material from said holder when pushed manually into said holder;
wherein said holder comprises an outer paper layer and a polymer layer selected from the group consisting of cellophane films, polyethylene films, polypropylene films, polyester films, polycaprolactone films and ethylene vinyl acetate films bonded to said outer paper layer on an outer surface of said outer paper layer, wherein said material is a tampon and said holder is shaped for vaginal insertion.
18. The device of claim 16 wherein said plunger comprises an outer paper layer to which is adhered a polymer layer selected from the group consisting of cellophane films, poly-ethylene films, polypropylene films, polycaprolactone films, polyester films and ethylene vinyl acetate films bonded to said outer paper layer on an outer surface of said outer paper layer.
19. The device of claim 17 wherein said plunger comprises an outer paper layer to which is adhered a polymer layer selected from the group consisting of cellophane films, poly-ethylene films, polypropylene films, polycaprolactone films, polyester films and ethylene vinyl acetate films bonded to said outer paper layer on an outer surface of said outer paper layer.
20. The device of claim 16 or 17 wherein said formation has a radius of curvature of less than about 0.055 inches and a height of greater than about 0.015 inches.
21. The device of claim 16 wherein said polymer layer is cellophane film.
22. The device of claim 17 wherein said polymer layer is cellophane film.
23. The device of claim 21 wherein said cellophane film has a water resistant coating on its outer surface.
24. The device of claim 22 wherein said cellophane film has a water resistant coating on its outer surface.
25. The device of claim 23 or 24 wherein said cellophane film has a WVTR of less than about 100 g/m2/day.
26. The device of claim 23 or 24 wherein said water resistant coating is selected from the group consisting of nitrocellulose and polyvinylidine chloride.
27. The device of claim 16 or 17 wherein said paper layer and said polymer layer are spirally wound about a common central axis.
28. The device of claim 16 or 17 wherein said paper layer and said polymer layer are convolutely wound about a common central axis.
29. The device of claim 16 or 17 wherein said expulsion end is rounded and comprises a plurality of petals which separate during expulsion.
30. The device of claim 16 or 17 wherein said polymer layer has a thickness of less than about 0.0020 inches.
31. The device of claim 16 or 17 wherein said holder has a plurality of said raised formations disposed distal to its expulsion end.
32. The device of claim 16 or 17 wherein said plunger comprises a raised area adapted to interlock with an inner portion of said raised formation on said holder to prevent said plunger and said holder from inadvertently being detached from each other.
33. The device of claim 16 or 17 wherein said outer paper layer has a thickness of from 0.002 to 0.006 inches.
34. An insertion device of claim 1 or 2 wherein said cellophane layer has a water resistant coating on its outer surface, a thickness of less than about 0.0020 inches, and a WVTR of less than about 100 g/m2/day, and wherein said plunger comprises an outer paper layer and a cellophane layer adhered to said outer paper layer on an outer surface of said outer paper layer.
35. An insertion device of claim 16 or 17 wherein said polymer layer has a water resistant coating on its outer surface, a thickness of less than about 0.0020 inches, and a WVTR of less than about 100 g/m2/day, and wherein said plunger comprises an outer paper layer and a polymer layer adhered to said outer paper layer on an outer surface of said outer paper layer.
36. The insertion device of claim 1 or 2 wherein said holder includes at least one embossed formation.
37. The device of claim 14 or 15 wherein the holder further comprises a second inner paper layer laminated to an inner surface of said inner paper layer.
38. The device of claim 16 wherein said raised formation comprises a ring.
39. The device of claim 17 wherein said raised formation comprises a ring.
40. The device of claim 18 or 19 wherein said raised formation comprises a ring.
41. The device of claim 38 or 39 wherein said ring is embossed.
42. An insertion device for inserting a tampon material into a vagina comprising:
an elongate, tubular holder shaped for insertion into the vagina, adapted to hold the tampon to be inserted, and having an expulsion end portion; and a plunger, telescopically and slidably mounted in said holder distal to said expulsion end and adapted to expel said tampon from said holder when pushed manually into said holder;
wherein said holder comprises an outer polymer film layer adhered to an outer surface of an underlying paper layer, and the polymer film layer having an outer surface and an inner surface, substantially all of the area of said inner surface being supported by and adhered to said outer surface of said underlying paper layer, said polymer film layer comprising a polymer selected from the group consisting of cellophane, polypropylene, polyester, polycaprolactone, and ethylene vinyl acetate, and having a WVTR of less than 100 g/m2/day, so that the polymer layer has adequate water resistance to maintain its integrity during insertion into the vagina, said polymer film layer being capable of separation from said underlying paper layer as an intact, self-supporting layer.
an elongate, tubular holder shaped for insertion into the vagina, adapted to hold the tampon to be inserted, and having an expulsion end portion; and a plunger, telescopically and slidably mounted in said holder distal to said expulsion end and adapted to expel said tampon from said holder when pushed manually into said holder;
wherein said holder comprises an outer polymer film layer adhered to an outer surface of an underlying paper layer, and the polymer film layer having an outer surface and an inner surface, substantially all of the area of said inner surface being supported by and adhered to said outer surface of said underlying paper layer, said polymer film layer comprising a polymer selected from the group consisting of cellophane, polypropylene, polyester, polycaprolactone, and ethylene vinyl acetate, and having a WVTR of less than 100 g/m2/day, so that the polymer layer has adequate water resistance to maintain its integrity during insertion into the vagina, said polymer film layer being capable of separation from said underlying paper layer as an intact, self-supporting layer.
43. The device of claim 42 wherein said polymer film layer comprises polyester.
44. A tampon applicator comprising:
an elongate tubular holder shaped for vaginal insertion, adapted to contain a tampon, and having an expulsion end portion and a gripping end portion distal the expulsion end portion, and at least one raised formation at the gripping end portion to form a finger grip for said holder, said raised formation being unitary with said holder; and a plunger, telescopically and slidably mounted in said holder at said gripping end and adapted to expel said tampon from said holder when pushed manually into said holder, wherein said holder comprises an outer polymer film layer adhered to are outer surface of an underlying paper layer, said polymer film layer comprising a polymer selected from the group consisting of cellophane, polyethylene, polypropylene, polyester, polycaprolactone and ethylene vinyl acetate, said polymer film layer being capable of separation from said underlying paper layer as an intact, self-supporting layer.
an elongate tubular holder shaped for vaginal insertion, adapted to contain a tampon, and having an expulsion end portion and a gripping end portion distal the expulsion end portion, and at least one raised formation at the gripping end portion to form a finger grip for said holder, said raised formation being unitary with said holder; and a plunger, telescopically and slidably mounted in said holder at said gripping end and adapted to expel said tampon from said holder when pushed manually into said holder, wherein said holder comprises an outer polymer film layer adhered to are outer surface of an underlying paper layer, said polymer film layer comprising a polymer selected from the group consisting of cellophane, polyethylene, polypropylene, polyester, polycaprolactone and ethylene vinyl acetate, said polymer film layer being capable of separation from said underlying paper layer as an intact, self-supporting layer.
45. The tampon applicator of claim 44 wherein said raised formation is embossed.
46. A tampon applicator comprising:
an elongate tubular holder shaped for vaginal insertion, adapted to contain a tampon, and having an expulsion end portion and a gripping end portion distal the expulsion end portion to form at least one deformation at the gripping end portion to form a finger grip for said holder, said deformation being unitary with said holder; and a plunger, telescopically and slidably mounted in said holder at said gripping end and adapted to expel said tampon from said holder when pushed manually into said holder;
wherein said holder comprises an outer polymer film layer adhered to an outer surface of an underlying paper layer, said polymer film layer being capable of separation from said underlying paper layer as an intact, self-supporting layer.
an elongate tubular holder shaped for vaginal insertion, adapted to contain a tampon, and having an expulsion end portion and a gripping end portion distal the expulsion end portion to form at least one deformation at the gripping end portion to form a finger grip for said holder, said deformation being unitary with said holder; and a plunger, telescopically and slidably mounted in said holder at said gripping end and adapted to expel said tampon from said holder when pushed manually into said holder;
wherein said holder comprises an outer polymer film layer adhered to an outer surface of an underlying paper layer, said polymer film layer being capable of separation from said underlying paper layer as an intact, self-supporting layer.
47. The tampon applicator of claim 46 wherein said polymer film layer comprises a polymer selected from the group consisting of cellophane, polyethylene, polypropylene, polyester, polycaprolactone and ethylene vinyl acetate.
48. An insertion device for inserting a tampon material into a vagina comprising:
an elongate, tubular holder shaped for insertion into the vagina, adapted to hold the tampon to be inserted, and having an expulsion end portion; and a plunger, telescopically and slidably mounted in said holder distal to said expulsion end and adapted to expel said tampon from said holder when pushed manually into said holder;
wherein said holder comprises an outer polymer film layer adhered by an intermediate layer to an outer surface of an underlying paper layer, and the polymer film layer having an outer surface and an inner surface, substantially all of said inner surface being supported by and adhered to said outer surface of said underlying paper layer, said polymer film layer comprising a polymer selected from the group consisting of cellophane, polypropylene, polyester, polycaprolactone, and ethylene vinyl acetate, and having a WVTR of less than 100 g/m2/day, so that the polymer layer has adequate water resistance to maintain its integrity during insertion into the body cavity.
an elongate, tubular holder shaped for insertion into the vagina, adapted to hold the tampon to be inserted, and having an expulsion end portion; and a plunger, telescopically and slidably mounted in said holder distal to said expulsion end and adapted to expel said tampon from said holder when pushed manually into said holder;
wherein said holder comprises an outer polymer film layer adhered by an intermediate layer to an outer surface of an underlying paper layer, and the polymer film layer having an outer surface and an inner surface, substantially all of said inner surface being supported by and adhered to said outer surface of said underlying paper layer, said polymer film layer comprising a polymer selected from the group consisting of cellophane, polypropylene, polyester, polycaprolactone, and ethylene vinyl acetate, and having a WVTR of less than 100 g/m2/day, so that the polymer layer has adequate water resistance to maintain its integrity during insertion into the body cavity.
49. A tampon applicator comprising:
an elongate tubular holder shaped for vaginal insertion, adapted to contain a tampon, and having an expulsion end portion and a gripping end portion distal the expulsion end portion, and at least one raised formation at the gripping end portion to form a finger grip for said holder, said raised formation being unitary with said holder; and a plunger, telescopically and slidably mounted in said holder at said gripping end and adapted to expel said tampon from said holder when pushed manually into said holder;
wherein said holder comprises an outer polymer film layer adhered by an intermediate layer to an outer surface of an underlying paper layer, said polymer film layer comprising a polymer selected from the group consisting of cellophane, polyethylene, polypropylene, polyester, polycaprolatone and ethylene vinyl acetate.
an elongate tubular holder shaped for vaginal insertion, adapted to contain a tampon, and having an expulsion end portion and a gripping end portion distal the expulsion end portion, and at least one raised formation at the gripping end portion to form a finger grip for said holder, said raised formation being unitary with said holder; and a plunger, telescopically and slidably mounted in said holder at said gripping end and adapted to expel said tampon from said holder when pushed manually into said holder;
wherein said holder comprises an outer polymer film layer adhered by an intermediate layer to an outer surface of an underlying paper layer, said polymer film layer comprising a polymer selected from the group consisting of cellophane, polyethylene, polypropylene, polyester, polycaprolatone and ethylene vinyl acetate.
50. A tampon applicator comprising:
an elongate tubular holder, shaped for vaginal insertion, adapted to contain a tampon, and having an expulsion end portion and a gripping end portion distal the expulsion end portion, and at least one deformation at the gripping end portion to form a finger grip for said holder, said deformation being unitary with said holder; and a plunger, telescopically and slidably mounted in said holder at said gripping end and adapted to expel said tampon from said holder when pushed manually into said holder;
wherein said holder comprises an outer polymer film layer adhered by an intermediate layer to an outer surface of an underlying paper layer.
an elongate tubular holder, shaped for vaginal insertion, adapted to contain a tampon, and having an expulsion end portion and a gripping end portion distal the expulsion end portion, and at least one deformation at the gripping end portion to form a finger grip for said holder, said deformation being unitary with said holder; and a plunger, telescopically and slidably mounted in said holder at said gripping end and adapted to expel said tampon from said holder when pushed manually into said holder;
wherein said holder comprises an outer polymer film layer adhered by an intermediate layer to an outer surface of an underlying paper layer.
51. A tampon applicator for inserting a tampon into a vagina, comprising:
an elongate, tubular holder shaped for insertion into the vagina, adapted to hold the tampon to be inserted, and having an expulsion end portion and a gripping end portion distal the expulsion end portion, and at least one deformation at the gripping end portion to form a finger grip for said holder, said deformation being unitary with said holder; and a plunger, telescopically and slidably mounted in said holder at said gripping end and adapted to expel said tampon from said holder when pushed manually into said holder;
wherein said holder comprises a laminate of an outer polymer film attached to an outer surface of an underlying paper layer with an adhesive.
an elongate, tubular holder shaped for insertion into the vagina, adapted to hold the tampon to be inserted, and having an expulsion end portion and a gripping end portion distal the expulsion end portion, and at least one deformation at the gripping end portion to form a finger grip for said holder, said deformation being unitary with said holder; and a plunger, telescopically and slidably mounted in said holder at said gripping end and adapted to expel said tampon from said holder when pushed manually into said holder;
wherein said holder comprises a laminate of an outer polymer film attached to an outer surface of an underlying paper layer with an adhesive.
52. A tampon applicator for inserting a tampon into a vagina, comprising:
an elongate, tubular holder shaped for insertion into the vagina, adapted to hold the tampon to be inserted, and having an expulsion end portion and a gripping end portion distal the expulsion end portion, and at least one deformation at the gripping end portion to form a finger grip for said holder, said deformation being unitary with said holder; and a plunger, telescopically and slidably mounted in said holder at said gripping end and adapted to expel said tampon from said holder when pushed manually into said holder;
wherein said holder comprises a laminate of an outer polymer film indirectly attached to the outer surface of an underlying paper layer through an intermediate layer to said paper layer.
an elongate, tubular holder shaped for insertion into the vagina, adapted to hold the tampon to be inserted, and having an expulsion end portion and a gripping end portion distal the expulsion end portion, and at least one deformation at the gripping end portion to form a finger grip for said holder, said deformation being unitary with said holder; and a plunger, telescopically and slidably mounted in said holder at said gripping end and adapted to expel said tampon from said holder when pushed manually into said holder;
wherein said holder comprises a laminate of an outer polymer film indirectly attached to the outer surface of an underlying paper layer through an intermediate layer to said paper layer.
53. A tampon applicator for inserting a tampon into a vagina, the applicator comprising an elongate, tubular holder comprising a laminate of an outer polymer film attached to at least a portion of an underlying paper layer, the laminate having an embossed formation, the tubular holder further comprising an adhesive which adheres the polymer film to the paper layer.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US81975392A | 1992-01-13 | 1992-01-13 | |
| US819,753 | 1992-01-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2087130A1 CA2087130A1 (en) | 1993-07-14 |
| CA2087130C true CA2087130C (en) | 2004-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002087130A Expired - Fee Related CA2087130C (en) | 1992-01-13 | 1993-01-12 | Tampon applicator |
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| US (3) | US5346468A (en) |
| EP (2) | EP0551758B2 (en) |
| JP (1) | JPH06197927A (en) |
| AT (2) | ATE160282T1 (en) |
| AU (1) | AU673812B2 (en) |
| BR (1) | BR9300115A (en) |
| CA (1) | CA2087130C (en) |
| DE (2) | DE69231104T2 (en) |
| DK (2) | DK0791347T3 (en) |
| ES (2) | ES2146048T3 (en) |
| FI (1) | FI930116A (en) |
| HK (2) | HK1005123A1 (en) |
| IL (1) | IL104194A (en) |
| NO (1) | NO301864B1 (en) |
| NZ (1) | NZ245671A (en) |
| ZA (1) | ZA93101B (en) |
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| JPH05183Y2 (en) * | 1988-04-12 | 1993-01-06 | ||
| US4891042A (en) * | 1988-05-06 | 1990-01-02 | Playtex Family Products, Inc. | Portable tampon applicator |
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| JPH08503151A (en) * | 1992-11-06 | 1996-04-09 | タンブランズ，インク． | Tampon applicator |
| US5279541A (en) * | 1992-11-06 | 1994-01-18 | Tambrands Inc. | Tampon applicator |
| EP0613672A1 (en) * | 1993-03-01 | 1994-09-07 | Tambrands, Inc. | Water-soluble tampon applicator |
-
1992
- 1992-12-15 AU AU30149/92A patent/AU673812B2/en not_active Ceased
- 1992-12-21 IL IL10419492A patent/IL104194A/en not_active IP Right Cessation
- 1992-12-22 DE DE69231104T patent/DE69231104T2/en not_active Expired - Lifetime
- 1992-12-22 DK DK97107261T patent/DK0791347T3/en active
- 1992-12-22 EP EP92311695A patent/EP0551758B2/en not_active Expired - Lifetime
- 1992-12-22 AT AT92311695T patent/ATE160282T1/en active
- 1992-12-22 DE DE69223231T patent/DE69223231T3/en not_active Expired - Fee Related
- 1992-12-22 AT AT97107261T patent/ATE193198T1/en not_active IP Right Cessation
- 1992-12-22 ES ES97107261T patent/ES2146048T3/en not_active Expired - Lifetime
- 1992-12-22 DK DK92311695T patent/DK0551758T3/en active
- 1992-12-22 ES ES92311695T patent/ES2111622T5/en not_active Expired - Lifetime
- 1992-12-22 EP EP97107261A patent/EP0791347B1/en not_active Expired - Lifetime
-
1993
- 1993-01-07 ZA ZA93101A patent/ZA93101B/en unknown
- 1993-01-12 FI FI930116A patent/FI930116A/en unknown
- 1993-01-12 NO NO930101A patent/NO301864B1/en not_active IP Right Cessation
- 1993-01-12 CA CA002087130A patent/CA2087130C/en not_active Expired - Fee Related
- 1993-01-12 BR BR9300115A patent/BR9300115A/en not_active IP Right Cessation
- 1993-01-13 JP JP5019417A patent/JPH06197927A/en active Pending
- 1993-01-13 NZ NZ245671A patent/NZ245671A/en not_active IP Right Cessation
- 1993-12-22 US US08/171,853 patent/US5346468A/en not_active Expired - Lifetime
-
1994
- 1994-08-18 US US08/292,509 patent/US5558631A/en not_active Expired - Lifetime
-
1996
- 1996-09-20 US US08/717,320 patent/US5800377A/en not_active Expired - Lifetime
-
1998
- 1998-05-16 HK HK98104237A patent/HK1005123A1/en not_active IP Right Cessation
- 1998-05-16 HK HK99100061A patent/HK1014857A1/en not_active IP Right Cessation
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20130114 |