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Publication numberUS3557788 A
Publication typeGrant
Publication dateJan 26, 1971
Filing dateMar 8, 1968
Priority dateMar 8, 1968
Publication numberUS 3557788 A, US 3557788A, US-A-3557788, US3557788 A, US3557788A
InventorsSwartz Betty J
Original AssigneeSwartz Betty J
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Disposable syringe
US 3557788 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

United States Patent 3,474,844 10/1969 Lindstrom 150/.5

758,643 5/1904 Haigh 123/232 1,029,689 6/1912 Kelley 128/232 3,316,903 5/1967 Richards 128/1457 3,454,007 7/1967 Salis 128/232 Primary Examiner-Richard A. Gaudet Assistant Examiner-G. F. Dunne Attorney-Lyon and Lyon ABSTRACT: A syringe having a collapsible canister whereby the canister after being completely collapsed is locked in the collapsed position so that it may not be reused, and an injector nozzle conveniently packaged within the interior of the canister prior to use so that the entire package provides a convenient container and syringe, the nozzle being extendable when prepared for use.

DISPOSABLE SYRINGE The present invention relates generally to syringes and more particularly to syringes adapted for hygienic purposes.

Syringes have been sold in the past for hygienic purposes in which there is included a bulb and an injector nozzle and some of these devices have been marketed wherein the bulb portion contains a certain quantity of fluid designed for a particular purpose. Such devices ordinarily include a separate detachable nozzle which is to be attached to the bulb after removing a seal which retains the fluid inside the bulb portion. The difficulty with such devices is that they provide no means for maintaining the nozzle sterile and in addition consist of a plurality of separate parts and are therefore inconvenient. In addition, such devices can be reused with the inherent possibility of spreading infection.

The syringe of the present invention cannot be reused since it provides a locking device which keeps the canister collapsed after use. In addition, the present invention provides a syringe which contains the injector nozzle prepackaged within the body of the canister so that it may be sealed therein and maintained in a sterile condition. In such a manner, the syringe can be prepacked with various types of fluid and will be convenient for carrying in ones pocket or purse and can be easily stored.

Further objects and advantages of the present invention will become apparent upon reading the ensuing detailed description in conjunction with the drawings in which:

FIG. I is a sectional elevation of the syringe in its sealed condition.

FIG. 2 is a sectional elevation of the syringe with the nozzle extended ready for use.

FIG. 3 is a sectional elevation showing the canister collapsed after use.

In the syringe of the present invention, the canister generally designated consists of a substantially cylindrical device, the walls 12 of which are collapsible and may be formed as a series of circular bellowslike folds. The syringe may be entirely constructed of a semirigid plastic. The canister 10 has a bottom closure end 14 and an upper end cap 16.

The injector noule 18 is coaxially disposed within the interior of the canister 10. The nozzle 18 may be of a long, substantially cylindrical tube having a threaded base 20 and a hemispherical tip 22. The hemispherical tip 22 may be provided with a plurality of apertures 24 extending not only axially but radially as desired. The length of the nozzle 18 is slightly greater than the height of the canister 10 when the canister is in its extended position so that a short portion of the tip 22 of nozzle 18 extends through bore 26 in the end cap 16 and slightly therebeyond. The bore 26 of end cap 16 is threaded at 28 to receive the threaded end 20 of the nozzle. The tip 22 of the nozzle is covered by a removable sealer cap 30 which extends over the end 22 and adheres to the edges of the end cap I6.

When it is desired to use the syringe, the sealer cap 30 is removed and the tip 22 of the nozzle may be grasped and extended axially outwardly and then turned to engage the threaded base 20 in the threaded bore 28. The contents of the canister 10 may then be expelled by forcibly compressing the canister 10 so that the contents are expelled through the apertures 24 of the nozzle 18. Situated on the interior wall of the end closure 14 is a small circular plate 32 upon which is mounted a'plurality of interlocking fingers 34. The bore 26 of the end cap is likewise extended a short distance inwardly from the upper end of the canister and provides a cylindrical boss 36. The outer periphery of the cylindrical boss 36 is formed at an angle to provide an annular interlocking surface 38.

As shown in FIG. 3, when the canister 10 is entirely collapsed, in order to expel the entire contents thereof, the interlocking fingers 34 engage the annular surface 38 in an interlocking relationship so that the canister I0 may not thereafter be expanded for reuse. I

The entire syringe may be made of an inexpensive semirigid plastic material, so its cost would be exceedingly low and it would therefore be feasible to merely discard the device after use. This feature is a desirable one since it eliminates the possibility of spreaded infection which might occur should the owner reuse the device without properly cleaning it. For various uses, such as feminine hygiene, the canister may be filled with the appropriate fluids and carried in the pocket or purse without the danger of spilling since the sealing cap would prevent any spilling or leaking of the contents. In addition, since the sealing cap is held tightly in place, the contents of the canister as well as the injector nozzle itself can be maintained in a sterile condition, it will be noted that the internal threads 28 are shown having a taper as are the threads at 20. By this method a better seal is obtained where only a few threads are present and it may also be desired to have these threads deformable in order to firmly lock and seal the extended nozzle In place prior to use.

While a particular embodiment of the present invention has been shown and described, it will be obvious to persons skilled in the art that changes and modifications may be made without departing from this invention in its broader aspects, and it is the aim of the appended claims to cover all such changes and modifications as fall within the true scope and spirit of this invention.


l. A disposable syringe comprising sealed container means for holding a quantity of fluid, said container means being collapsible under manual pressure, said sealed container means having locking means internally mounted at opposite ends thereof for maintaining said container means in a collapsed state after use and nozzle means coupled to said container means for conducting said fluid from said container to a remote location.

2. A syringe of the type described in claim 1 wherein said nozzle means is axially disposed within said container means and is slidable to an extended position for use, said nozzle means including means for locking said nozzle in said extended position, and a removable sealing means for retaining said nozzle in the unextended position.

3. A syringe of the type described in claim 2 wherein said container means comprises a cylindrical canister, said canister having foldable sidewalls.

4. A syringe of the type described in claim 3 wherein said nozzle means comprises a tubular member coaxially disposed within said cylindrical canister, said tubular member having an apertured tip and a threaded base, threaded means formed in said canister for receiving said base to lock said tubular member in an extended position.

5. A syringe of the type described in claim 4 wherein said locking means for maintaining said container means in a collapsed state comprises shoulder means mounted inside said canister at one end thereof, and finger means mounted inside said container at the opposite end thereof.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US758643 *Dec 17, 1903May 3, 1904Mcpike Drug CompanyPortable syringe.
US1029689 *Jul 31, 1911Jun 18, 1912George J KelleyVaginal syringe.
US3301293 *Dec 16, 1964Jan 31, 1967Owens Illinois IncCollapsible container
US3316903 *Sep 26, 1963May 2, 1967Richards Albert MInhalator
US3454007 *Jul 15, 1966Jul 8, 1969Salis TheodoreNon-reusable vaginal cleansing apparatus
US3474844 *Dec 14, 1967Oct 28, 1969Rudolph O LindstromLatching device for collapsible container
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3712295 *Aug 3, 1970Jan 23, 1973W KlineCentrifuge tube
US3754553 *Jan 7, 1972Aug 28, 1973Arsald IncDisposable douching apparatus
US3844284 *Aug 9, 1973Oct 29, 1974Richardson Merrell IncDisposable douche
US3905370 *Mar 28, 1974Sep 16, 1975Int Paper CoDisposable douche product
US3938514 *Jul 18, 1974Feb 17, 1976Boucher Lionel JBladder wash method and apparatus
US4592492 *Apr 8, 1982Jun 3, 1986Tidmore Richard DBellows-type container for liquids
US4623064 *Sep 3, 1985Nov 18, 1986Rca CorporationApparatus for storage of molded discs
US4753638 *Apr 8, 1986Jun 28, 1988Clinical Product Development, Ltd.Medical syringe
US4873100 *Apr 15, 1987Oct 10, 1989The Procter & Gamble CompanyBistable expandable bottle
US5102398 *Sep 18, 1990Apr 7, 1992Farris Barry LPlungerless syringe
US5174469 *Nov 13, 1990Dec 29, 1992Policapelli Nini EPartially collapsible container with drinking straw or pour spout
US5240130 *Jan 26, 1990Aug 31, 1993Georg OsbakkCompressible bottle
US5277810 *Apr 9, 1991Jan 11, 1994Shepard Joel RJuicing container for a press
US5370626 *Jul 26, 1993Dec 6, 1994Farris; BarryPlungerless syringe
US5538506 *Nov 3, 1993Jul 23, 1996Farris; BarryPrefilled fluid syringe
US5586681 *Jan 26, 1995Dec 24, 1996Policappelli; Nini E.Container for dispensing liquids
US5615791 *Jun 7, 1995Apr 1, 1997Vatelot; YvesSystem of a bottle and of an associated co-operating device
US5758789 *Aug 9, 1996Jun 2, 1998Shin; Woong-SikCarbonated beverage bottle
US5843043 *Mar 25, 1997Dec 1, 1998Markus; GeorgeSyringe and process for dispensing treatment fluid
US5996424 *Mar 31, 1998Dec 7, 1999Chemtrace CorporationApparatus for obtaining, storing and transporting liquid samples and methods for making and using same
US6296150Feb 25, 1999Oct 2, 2001Barry FarrisMedicinal dosing apparatus and method
US6311861Sep 7, 1999Nov 6, 2001Nini PolicappelliLaminated container
US6315761 *Sep 29, 1999Nov 13, 2001Alexis ShcherbinaInjection device with bellowed reservoir
US6319235 *Sep 4, 1996Nov 20, 2001Koichi YoshinoSyringe serving also as an ampule and associated equipment
US6354458Nov 24, 1997Mar 12, 2002Nini PolicappelliTop for container
US6547099Aug 9, 2001Apr 15, 2003Barry FarrisMedicinal dosing apparatus and method
US6702143 *Nov 13, 2001Mar 9, 2004Korea Alphaline Co. Ltd.Container
US6840164Jan 31, 2002Jan 11, 2005Eastman Outdoors, Inc.Convertible marinade container/dispenser having a flexibly compressible wall, and method of using same
US8414549 *Jan 28, 2011Apr 9, 2013Christopher Y. Thomas, Jr.Anus cleaning apparatus
US9180252Mar 15, 2013Nov 10, 2015Bayer Medical Care Inc.Bellows syringe fluid delivery system
US9493298Sep 10, 2015Nov 15, 2016Juicero, Inc.Juicing systems and methods
US9498570Apr 23, 2012Nov 22, 2016Bayer Healthcare LlcBladder syringe fluid delivery system
US9610220Mar 19, 2015Apr 4, 2017Dentsply International Inc.Cylindrical collapsible container
US20030066838 *Nov 13, 2001Apr 10, 2003Wang Soo ChangContainer
US20040039352 *Jun 28, 2002Feb 26, 2004Paul BergesonNasal dosing device
US20050011789 *Jul 17, 2003Jan 20, 2005Garry TsaurRetractable packaging
US20080245804 *Jun 21, 2004Oct 9, 2008Yoav WeinbergerFluid Container
US20100314284 *Dec 19, 2007Dec 16, 2010Julien TruesdaleCollapsible Container
US20160242455 *May 4, 2016Aug 25, 2016Juicero, Inc.Juicer including a juicer cartridge reader
US20160242456 *May 4, 2016Aug 25, 2016Juicero, Inc.Juicer including shaped pressing surfaces
US20160244249 *May 4, 2016Aug 25, 2016Juicero, Inc.Juicer cartridge including a secondary compartment associated with an outlet
EP2810669A1 *Jun 3, 2013Dec 10, 2014Dentsply IH ABCylindrical collapsible container
EP3069744A1 *Jun 3, 2013Sep 21, 2016Dentsply IH ABCylindrical collapsible container
WO1986005989A1 *Apr 8, 1986Oct 23, 1986Clinimed LimitedMedical syringe
WO1995031236A1 *May 16, 1995Nov 23, 1995Steven Michael SuttonA safety syringe
WO2008075975A3 *Dec 19, 2007Aug 14, 2008Julien TruesdaleCollapsible container
WO2014195095A1 *May 13, 2014Dec 11, 2014Dentsply Ih AbCylindrical collapsible container
U.S. Classification604/195, 604/212, 220/666, 222/103, 222/107, D09/683, 604/216, 604/911, 604/275
International ClassificationA61M3/02, A61M3/00
Cooperative ClassificationA61M3/0262
European ClassificationA61M3/02D8C