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Publication numberUS3845766 A
Publication typeGrant
Publication dateNov 5, 1974
Filing dateJun 11, 1973
Priority dateJun 9, 1972
Also published asCA1005719A, CA1005719A1, DE2329719A1, DE2329719C2
Publication numberUS 3845766 A, US 3845766A, US-A-3845766, US3845766 A, US3845766A
InventorsZoller H
Original AssigneeMoelnlycke Ab
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Cup-shaped device for the collection of menstrual fluids and intended for internal use
US 3845766 A
Abstract
This invention concerns a menstrual device for internal use consisting of a liquid-proof, soft and elastomeric material. The device is generally cup-shaped and has on its outside annular ribs extending peripherally around the wall of the cup, the ribs having for its purpose to sealingly abut the wall of the vaginal canal when the device is in use in order to maintain the device in position in the vaginal canal. The invention is characterized in that at least one annular rib extending around the periphery of the wall of the cup is wave-shaped.
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Description  (OCR text may contain errors)

United States Patent 11 1 Ziiller Nov. 5, 1974 1 1 CUP-SHAPED DEVICE FOR THE 2534.900 12/1950 Chalmers. 2. 128/285 COLLECTION OF MENSTRUAL FLUIDS 3,404.682 10/1968 Waltlron 128/285 3,626,942 12/1971 Waldron 128/285 AND INTENDED FOR INTERNAL USE Henry Z'oller, Vastra Frolunda, Sweden Inventor:

Foreign Application Priority Data June 9. 1972 Sweden 7659/72 US. Cl. 128/285, 128/127 lnt. Cl. A61f 13/20 Field of Search 128/285 References Cited UNITED STATES PATENTS 8/1937 Chalmers .1 128/285 Primary Examiner-Aldrich F. Medbery Attorney, Agent, or FirmYoung & Thompson [57] ABSTRACT This invention concerns a menstrual device for internal use consisting of a liquid proof, soft and elastomeric material. The device is generally cup-shaped and has on its outside annular ribs extending peripherally around the wall of the cup, the ribs having for its purpose to sealingly abut the wall of the vaginal canal when the device is in use in order to maintain the device in position in the vaginal canal. The invention is characterized in that at least one annular rib extending around the periphery of the wall of the cup is waveshaped.

6 Claims, 3 Drawing Figures MENSTRUAL FLUIDS AND INTENDED FOR INTERNAL USE The present invention relates to a generally cupshaped device for collecting menstrual fluids and intended for internal use, said device being made from a liquid-proof, soft, elastic material and being provided on the outside thereof with annular ribs which extend around the periphery of said device and which are intended to hold the device in firm abutment with the walls of the vaginal canal when the device is in use.

Such menstrual devices have long been known to the art, and to facilitate their insertion into the vaginal canal are constructed in a manner which enables them to be folded transversally of their longitudinal direction. When being inserted, the device is held compressed in its folded state by means of the fingers of the user or by a tool especially suited for the purpose. Subsequent to placing the device in position in the vaginal canal, the pressure on said device is released and the device expands as a result of the inherent springiness of the elastic material from which it is made and as a result of the annular ribs arranged around the periphery of the wall of the device, said ribs because of their shape and their dimensions expanding the device so that it firmly abuts the walls of the vaginal canal.

The first such menstrual devices manufactured had two parallel, annular ribs of which one comprised an outwardly folded edge or flange member extending around the open end of the device, said end in practice facing inwardly and upwardly in the vaginal canal so that menstrual fluid could be collected, while the second rib was located immediately beneath the first rib to define therebetween a concave groove which acted as a form of suction cup for holding the device tightly against the walls of the vaginal canal.

This design, however, was found to be uncomfortable and could not be reliably held in the correct position in the vaginal canal, but was found to tilt and thereby allow fluid to escape, to soil the clothes of the wearer. To overcome this disadvantage, there was suggested a modified design of the annular ribs and of the cupshaped device as a whole. It was also proposed that additional ribs should be made integral with said two annular ribs and the wall of the menstrual cup and that said additional ribs should cross the groove in a manner such that, together with the two annular ribs, said additional ribs divided the suction cup acting groove into alternate triangular and square recesses, each of which was intended to function as a separate suction cup for the purpose of holding the device in position in a man ner such that no fluid could escape around the edges of the device. With regard to the total design of the menstrual cup it was proposed that there should be arranged on the outside of the cup and integral therewith a longitudinally extending, bulged or keel-like appendage which, through its abutment with the wall of the vaginal canal, would prevent tilting of the cup as a result of the body movements executed by the wearer. In addition, it was also suggested that the plurality of Iongitudinally extending ribs on the inner surface of the cup wall of the first known type of device were replaced by the arrangement of a single spiral rib extending along the inner surface of the cup wall from the bottom to the open end thereof, said spiral rib being assumed to effectively lock the cup in position both longitudinally and laterally.

Because of its rigidity, this modified design of the type of menstrual device described in the introduction above was found to be difficultto fold and insert, and since it was also found to be extremely uncomfortable as a result of said rigidity and of the large number of comparatively hard components from which it was con structed, said modified design has not been used to any appreciable extent.

Instead, further changes in the actual shape of the cup and to the shape and positioning of the annular ribs have been suggested. The cup has been made more cylindrical in shape than with previously known designs, and in connection herewith the number of annular ribs has been increased to embrace a first and a second set of annular ribs designed to act as sealing lips and arranged in the vicinity of the open end of the cup, the two sets of ribs comprising two radially outwardly projecting parallel lips of which the lips belonging to the first or the upper set are directed obliquely downwardly, while the lips belongingto the second or lower set are directed upwardly, there being provided be tween the two lips in each set of lips an annular groove of wedge-shaped cross section. i

Even though an internal menstrual device constructed in this manner is seated somewhat more reliably in the vaginal canal and is somewhat more comfortable to wear than devices accordingto the previously suggested designs, the construction does not ensure such complete securement of the device subsequent to its being inserted in a folded state into the vaginal canal that a fully reliable seal is obtained against the canal walls. With narrow vaginal canals the device, which is essentially only folded double, cannot fully expand, whereby incomplete abutment is obtained against the wall of the canal. To prevent this, the annularribs or sealing lips provided with present menstrual devices must in practice always be made so rigid that,

under all circumstances, they exert a strong pressure against the walls of the vaginal canal. In other words, the further modified design of the menstrual device does not greatly differ from its predecessors since similar thereto instead of being soft and readily adaptable to vaginal canals of different sizes it is, to the contrary, hard and conforms firmly to different vaginal canals according to the outer diameter of the annular ribs on the device, as a result of their relatively considerable stiffness.

The object of the present invention is to circumvent the aforementioned disadvantages associated with menstrual devices of the type described in the introduction and to provide a device which can be readily folded for insertion into the vaginal canal and which is self-adaptable to different sizes and shapes thereof and which is capable of constantly conforming softly and gently to the tissues of the canal so as to ensure a good seal and reliable retention even when the wearer performs relatively violent body movements. This object is achieved by means of the device according to the present invention, which is mainly characterized in that at least one of the annular ribs extending peripherally around the wall of the device has the shape of a waved line.

So that the invention may be more readily understood and further features thereof made apparent, a menstrual device constructed in accordance with the invention will now be described with reference to an embodiment thereof illustrated inthe accompanying drawing in which FIG. 1 is a partially cut away side view of an embodiment of a menstrual device for internal use constructed in accordance with the invention, FIG. 2 is a cross sectional view taken through the line 2-2 in FIG. 1, and FIG. 3 is a cross sectional view taken through the line 3-3 in FIG. 1.

As will be seen from the drawing, an internal menstrual device according to the invention comprises a cup-shaped body 1 which is made from a liquidimpervious, soft, elastomeric material such as natural or synthetic rubber, plastics or other appropriate elastomeric material having the desired degree of imperviousness to liquid and which can be readily cleaned. With the illustrated embodiment, the cup 1 is provided on the outside thereof with a number of annular ribs 4-7 which extend around the periphery of the wall of the cup and which are made integrally therewith and are intended to hold the device in position in the vaginal canal whilst sealingly abutting the walls thereof. With the illustrated embodiment one of the four illustrated annular ribs forms an outwardly folded edge around the open end of the body, while the remaining ribs are disposed further down the side of the cup, two of said ribs, namely 5 and 6, being arranged at a relatively small distance apart from each other and from the rim of the cup, while one rib, 7, is arranged considerably further down towards the bottom of the cup and has on the outside thereof a finger grip 8 by means of which the'device can be removed after use.

The high degree of foldability of the menstrual device according to the invention, its high degree of adaptability to different sized vaginal canals and its ability to constantly lie softly in conforming abutment with the wall of the vaginal canal are all obtained by the fact that at least one, and in the illustrated embodiment three, of the ribs 5-7 extending circumferentially around the wall of the cup are wave-shaped. The shape of the rib may be a zigzag wave-shape, as with the illustrated embodiment, or a sine wave-shape, or any other wave-shape suitable for the intended purpose. The only decisive feature is that the wave-shape enables the body 1 to be folded and unfolded in a manner similar to that obtained when opening and closing an umbrella. The device is intended to be inserted into the vaginal canal by means of the fingers 0f the user or by means of a device suitable herefor, in a folded condition, essentially in the condition of a folded umbrella whereupon the device when released will automatically expand, primarily as. a result of the elasticity of the ribs, until a soft and conforming sealing abutment is obtained with the walls of the vaginal canal.

One of the great advantages afforded with the device of the present invention is that the effect afforded by the wave-shaped ribs can be adapted to suit the most widely varied requirements, for example at least one of the wave-shaped ribs can be given a varying height.

Further advantages and the possibility of varying the degree of abutment and the extent of expansion as required when manufacturing the device of the invention, whilst retaining an extremely high degree of foldability, are also afforded since at least one, but at most each alternate' one of the crests of the annular ribs can be arranged to coincide with a known longitudinally extending rib arranged externally or internally of the cup such as the rib 9 shown in the illustrated embodiment.

. Since the different ribs, whether they be annular or longitudinal, are suitably made integral with the cup and therefore from the same material, it will readily be perceived that the portions of the cup wall located between the different ribs are more resilient, i.e. springier, than the ribs. This means that the device according to the invention accompanies and conforms to the walls of the vaginal canal particularly well. Since at least one of the annular ribs has a wave-shaped form, the abutment zone obtained against the wall of the vaginal canal is so wide that any tendency ofthe device to tilt is effectively counteracted. This is particularly the case with the illustrated embodiment which has three such wide abutment zones provided by the three waveshaped annular ribs 5-7.

So that the menstrual cup need not contain the menstrual fluid in liquid form, at least a portion of the interior of the cup may be provided with a liquid absorbing material which may be of any type suitable for the purpose.

The invention is not restricted to the described and illustrated embodiment but can be modified within the scope of the following claims.

What I claim is:

l. A menstrual device intended for internal use and made of a liquid-proof, soft, elastomeric material and which is generally cup-shaped and provided on the outside thereof with annular ribs extending peripherally around the wall of said cup, which ribs are intended to sealingly abut the wall of a vaginal canal when the device is in use to hold said device in position in said canal, characterized in that at least one of the annular ribs extending around the periphery of the wall of the cup has a wave-shape and is spaced from the other said ribs.

2. A device according to claim 1, characterized in that the wave shape is a zigzag wave shape.

3. A device according to claim 1, characterized in that the wave shape is a sine wave shape.

4. A device according to claim 1, characterized in that at least one of the wave-shaped ribs has a varying height.

5. A device according to claim 1, characterized in that at least one, but at most each alternate one of the crests of the annular ribs coincides with a longitudinally extending rib arranged on the outer surface or the inner surface of the cup.

6. A device according to claim 1, characterized in that the portions of the cup wall located between the different ribs have slight springing properties as compared with the ribs.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2089113 *Jul 11, 1935Aug 3, 1937Chalmers Leona WCatamenial appliance
US2534900 *Jan 4, 1950Dec 19, 1950Chalmers Leona WMenstrual cup
US3404682 *Nov 17, 1965Oct 8, 1968Tassette IncVaginal cup and means for inserting same
US3626942 *Jun 2, 1970Dec 14, 1971Tassette IncVaginal cup having radially arranged internal supporting ribs
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4198976 *Oct 11, 1977Apr 22, 1980The Procter & Gamble CompanyVaginal contraceptive
US4286593 *May 5, 1980Sep 1, 1981Place Virgil AVaginal contraceptive shield
US4304226 *Mar 3, 1980Dec 8, 1981The Procter & Gamble CompanyVaginal contraceptive
US4821741 *Oct 5, 1987Apr 18, 1989Mohajer Reza SBarrier contraceptive
US5295984 *Jun 26, 1992Mar 22, 1994Ultrafem, Inc.Vaginal discharge collection device and intravaginal drug delivery system
US5718675 *Nov 5, 1993Feb 17, 1998Bo AnderssonSafety tampon
US6241846Jul 3, 1997Jun 5, 2001Ultrafem, Inc.Apparatus for manufacturing elastomeric articles
US6264638Mar 28, 1997Jul 24, 2001Ultrafem, Inc.Intravaginal drug delivery system and discharge collection device
US6332878Sep 2, 1999Dec 25, 2001Moonstruck, LlcDevices and methods for capturing and containing menstrual flow
US6796973Mar 21, 1994Sep 28, 2004Instead, Inc.Vaginal discharge collection device and intravaginal drug delivery system
US7618403Nov 17, 2009Mcneil-Ppc, Inc.Fluid management device with fluid transport element for use within a body
US7842014 *Sep 8, 2008Nov 30, 2010Aesculap AgSurgical sealing element, surgical seal, and surgical sealing system
US7845380Dec 7, 2010Mcneil-Ppc, Inc.Intravaginal device with fluid transport plates
US7861494Jun 30, 2006Jan 4, 2011Mcneil-Ppc, Inc.Intravaginal device with fluid transport plates
US8028500Oct 4, 2011Mcneil-Ppc, Inc.Intravaginal device with fluid transport plates
US8057453May 31, 2006Nov 15, 2011Mcneil-Ppc, Inc.Method of using an intravaginal device with fluid transport plates
US8137318Jul 8, 2009Mar 20, 2012Aesculap AgSurgical protection device for a surgical sealing element and surgical sealing system
US8182455May 22, 2012Mcneil-Ppc, Inc.Method of using intravaginal device with fluid transport plates
US8231753Jul 31, 2012Mcneil-Ppc, Inc.Intravaginal device with fluid transport plates
US8246586Jun 24, 2009Aug 21, 2012Aesculap AgSurgical sealing element holder for holding a surgical sealing element and surgical sealing system
US8247642May 14, 2004Aug 21, 2012Mcneil-Ppc, Inc.Fluid management device with fluid transport element for use within a body
US8480833May 13, 2005Jul 9, 2013Mcneil-Ppc, Inc.Intravaginal device with fluid transport plates and methods of making
US8535285Aug 18, 2011Sep 17, 2013Mcneil-Ppc, Inc.Method of using an intravaginal device with fluid transport plates
US8604269Mar 12, 2009Dec 10, 2013Mcneil-Ppc, Inc.Intravaginal device with fluid transport plates
US8653322May 14, 2004Feb 18, 2014Mcneil-Ppc, Inc.Intravaginal device with fluid transport plates
US8690847 *Apr 9, 2009Apr 8, 2014Charlotte NormanSanitary protection device
US8696636May 30, 2012Apr 15, 2014Aesculap AgSurgical sealing element holder for holding a surgical sealing element and surgical sealing system
US8697936Mar 12, 2010Apr 15, 2014Mcneil-Ppc, Inc.Intravaginal device with fluid transport plates
US8795248Apr 26, 2012Aug 5, 2014Alfred A. ShihataDevice and method for menstrual blood collection
US8864640May 16, 2005Oct 21, 2014Mcneil-Ppc, Inc.Methods of packaging intravaginal device
US9035124Mar 2, 2009May 19, 2015Mcneil-Ppc, Inc.Fluid management device with fluid transport element for use within a body
US9035126Feb 21, 2013May 19, 2015Mcneil-Ppc, Inc.Fluid management device with fluid transport element for use within a body
US9044354Feb 21, 2013Jun 2, 2015Mcneil-Ppc, Inc.Fluid management device with fluid transport element for use within a body
US20050256486 *Jun 30, 2004Nov 17, 2005Carasso Samuel CFluid management device with fluid transport element for use within a body
US20070010388 *Jun 30, 2006Jan 11, 2007Curt BinnerIntravaginal device with fluid transport plates
US20080077097 *Sep 22, 2005Mar 27, 2008Diva International Inc.Menstrual Cup
US20090082735 *Sep 8, 2008Mar 26, 2009Aesculap AgSurgical sealing element, surgical seal, and surgical sealing system
US20100145137 *Feb 15, 2007Jun 10, 2010Gaynor MorganVaginal Device
US20100312204 *Jun 6, 2009Dec 9, 2010Miin-Tsang SheuMenstrual Cup Device and Method of Use Thereof
US20110054424 *Apr 9, 2009Mar 3, 2011Charlotte NormanSanitary protection device
USD746452 *Jan 16, 2015Dec 29, 2015Vilislava PetrovaReusable menstrual cup
EP2275066A1May 13, 2005Jan 19, 2011Johnson & Johnson Consumer Companies, Inc.Intravaginal device with fluid transport plates
EP2347742A1May 16, 2005Jul 27, 2011Johnson & Johnson Consumer Companies, Inc.Methods of packaging intravaginal device
EP2347743A1May 13, 2005Jul 27, 2011Johnson & Johnson Consumer Companies, Inc.Fluid management device with fluid transport element for use within a body
EP2807997A2May 13, 2005Dec 3, 2014Johnson & Johnson Consumer Companies Inc.Method of using intravaginal device with fluid transport plates
WO1994000168A1 *Jun 28, 1993Jan 6, 1994Ultrafem, Inc.Vaginal discharge collection and drug delivery device
WO2000013638A2 *Sep 9, 1999Mar 16, 2000Erja Anita Helena TojkanderTampon protected from external moisture
WO2000013638A3 *Sep 9, 1999Jun 2, 2000Erja Anita Helena TojkanderTampon protected from external moisture
WO2005112862A1May 16, 2005Dec 1, 2005Johnson & Johnson Consumer Companies, Inc.Methods of packaging intravaginal device
WO2006058409A1 *Sep 22, 2005Jun 8, 2006Diva International Inc.Menstrual cup
WO2007082341A1 *Jan 17, 2007Jul 26, 2007Baslar Pty LtdVaginal cup
WO2009126088A1 *Apr 9, 2009Oct 15, 2009Charlotte NormanSanitary protection device
Classifications
U.S. Classification604/330, D24/141
International ClassificationA61F6/00, A61F5/451, A61F6/08, A61F5/455
Cooperative ClassificationA61F5/4553, A61F6/08
European ClassificationA61F5/455B, A61F6/08