Patent US4445895A successfully refreshed from Google Patents.
US4445895A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prepackaged, disposable hypodermic syringes
Assignee: STWB Inc
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Filing: 1982-10-18
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Granted: 1984-05-01
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Expires: 2002-10-18
Abstract
Abstract Prepackaged, disposable hypodermic syringes having a double-ended hypodermic needle comprising a cartridge ampoule and a syringe holder, as well as the syringe holders per se, are provided with restraint means to prevent accidental engagement between the hypodermic needle and the cartridge ampoule and consequent premature discharge of the ampoule contents prior to intended use.
Inventors
- 👤 Herman Margulies
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:20
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/24; A61M2005/2403; A61M2005/2407; A61M5/2455; A61M5/2466; A61M2005/247
Claims Analysis
Total Claims: 34
Claim 1
Independent Claim
226 words
A hypodermic syringe package for use in combination with a cartridge ampoule, said ampoule being sealed at its upper end by a slidable piston and at its lower end by a pierceable diaphragm and containing an injectable fluid therein, said package being adapted to prevent communication between an associated hypodermic syringe needle and the contents of said ampoule when said package is in a storage or pre-use configuration, which package comprises: a syringe holder having a barrel; an end closure cap removably attached to one end of said barrel, and a double-ended needle and needle hub removably attached to the other end of said barrel; and restraint means within said barrel adjacent the needle/needle hub end thereof when in said storage configuration, said restraint means comprising either an annular rim, a single tab or multiple tabs on the inside of said barrel adjacent the upper end thereof, said restraint means serving to prevent communication between the inner end of said double-ended needle and the contents of a cartridge ampoule when held within said barrel and whereby, upon interchange of said end closure cap and said needle and needle hub on the ends of said barrel to thereby assemble said syringe and cartridge ampoule into a use configuration, said restraint means no longer prevents communication between the inner end of said double-ended needle and the ampoule contents.
Claim 2
Dependent Claim
226 words
A hypodermic syringe package for use in combination with a cartridge ampoule, said ampoule being sealed at its upper end by a slidable piston and at its lower end by a pierceable diaphragm and containing an injectable fluid therein, said package being adapted to prevent communication between an associated hypodermic syringe needle and the contents of said ampoule when said package is in a storage or pre-use configuration, which package comprises: a syringe holder having a barrel; an end closure cap removably attached to one end of said barrel, and a double-ended needle and needle hub removably attached to the other end of said barrel; and restraint means within said barrel adjacent the needle/needle hub end thereof when in said storage configuration, said restraint means comprising either an annular rim, a single tab or multiple tabs on the inside of said barrel adjacent the upper end thereof, said restraint means serving to prevent communication between the inner end of said double-ended needle and the contents of a cartridge ampoule when held within said barrel and whereby, upon interchange of said end closure cap and said needle and needle hub on the ends of said barrel to thereby assemble said syringe and cartridge ampoule into a use configuration, said restraint means no longer prevents communication between the inner end of said double-ended needle and the ampoule contents.
Claim 3
Dependent Claim
25 words
A hypodermic syringe package according to claim 1 wherein said needle and needle hub are integral with a removable plug attached to said syringe barrel.
Claim 4
Dependent Claim
19 words
A hypodermic syringe package according to claim 2 which includes a needle sheath frictionally attached to said needle hub.
Claim 5
Dependent Claim
19 words
A hypodermic syringe package according to claim 1 which includes a needle sheath frictionally attached to said needle hub.
Claim 6
Dependent Claim
29 words
A hypodermic syringe package according to claim 3 wherein said closure cap has an axial hole therethrough for slidably receiving said needle sheath for use thereof as a plunger.
Claim 7
Dependent Claim
29 words
A hypodermic syringe package according to claim 4 wherein said closure cap has an axial hole therethrough for slidably receiving said needle sheath for use thereof as a plunger.
Claim 8
Dependent Claim
24 words
A hypodermic syringe package according to claim 5 wherein said needle sheath is provided with an annular collar for use as a thumb plate.
Claim 9
Dependent Claim
24 words
A hypodermic syringe package according to claim 6 wherein said needle sheath is provided with an annular collar for use as a thumb plate.
Claim 10
Dependent Claim
34 words
A hypodermic syringe package according to claim 8 wherein said safety plate has a pair of locking tabs and wherein said locking tabs are inserted through slots in the side wall of said barrel.
Claim 11
Dependent Claim
32 words
A hypodermic syringe package according to claim 7 wherein said needle sheath is provided with means for making positive engagement with the slidable piston in the upper end of a cartridge ampoule.
Claim 12
Dependent Claim
32 words
A hypodermic syringe package according to claim 9 wherein said needle sheath is provided with means for making positive engagement with the slidable piston in the upper end of a cartridge ampoule.
Claim 13
Dependent Claim
35 words
A hypodermic syringe package according to claim 10 wherein said positive engagement means comprises a threaded hole in the tip of said needle sheath in combination with a mating threaded post on said slidable piston.
Claim 14
Dependent Claim
35 words
A hypodermic syringe package according to claim 11 wherein said positive engagement means comprises a threaded hole in the tip of said needle sheath in combination with a mating threaded post on said slidable piston.
Claim 15
Dependent Claim
200 words
A hypodermic syringe package for use in combination with a cartridge ampoule, said ampoule being sealed at its upper end by a slidable piston and at its lower end by a pierceable diaphragm and containing an injectable fluid therein, said package being adapted to prevent communication between an associated hypodermic syringe needle and the contents of said ampoule; when said package is in a storage or pre-use configuration, which package comprises: a syringe holder having a barrel; an end closure cap removably attached to one end of said barrel, and a double-ended needle and needle hub removably attached to the other end of said barrel; and restraint means within said said barrel adjacent the needle/needle hub end thereof when in said storage configuration, said restraint means comprising a removable safety plate having a locking tab affixed thereto and positioned within the lower end of said barrel said restraint means serving to prevent communication between the inner end of said double-ended needle and the contents of a cartridge ampoule when held within said barrel and whereby, upon removal of said safety plate, said restraint means no longer prevents communication between the inner end of said double-ended needle and the ampoule contents.
Claim 16
Dependent Claim
200 words
A hypodermic syringe package for use in combination with a cartridge ampoule, said ampoule being sealed at its upper end by a slidable piston and at its lower end by a pierceable diaphragm and containing an injectable fluid therein, said package being adapted to prevent communication between an associated hypodermic syringe needle and the contents of said ampoule; when said package is in a storage or pre-use configuration, which package comprises: a syringe holder having a barrel; an end closure cap removably attached to one end of said barrel, and a double-ended needle and needle hub removably attached to the other end of said barrel; and restraint means within said said barrel adjacent the needle/needle hub end thereof when in said storage configuration, said restraint means comprising a removable safety plate having a locking tab affixed thereto and positioned within the lower end of said barrel said restraint means serving to prevent communication between the inner end of said double-ended needle and the contents of a cartridge ampoule when held within said barrel and whereby, upon removal of said safety plate, said restraint means no longer prevents communication between the inner end of said double-ended needle and the ampoule contents.
Claim 17
Dependent Claim
20 words
A hypodermic syringe package according to claim 14 wherein said needle and needle hub are integral with said syringe barrel.
Claim 18
Dependent Claim
204 words
A prepackaged hypodermic syringe which, in a storage or pre-use configuration, comprises in combination: (A) a syringe holder having a barrel; an end closure cap removably attached to one end of said barrel, and a double-ended needle and needle hub removably attached to the other end of said barrel; and restraint means within said barrel adjacent the needle/needle hub end thereof, said restraint means comprising either an annular rim, a single tab or multiple tabs in the inside of said barrel adjacent the upper end thereof; and (B) a cartridge ampoule within said barrel, said cartridge ampoule being sealed at its upper end by a slidable piston and at its lower end by a pierceable diaphragm and containing an injectable fluid therein, whereby said restraint means prevents communication between the inner end of said double-ended needle and the contents of said cartridge ampoule when held within said barrel in a pre-use configuration and whereby, upon interchange of said end closure cap and said needle and needle hub on the ends of said barrel to thereby assemble said syringe and cartridge ampoule into a use configuration, said restraint means no longer prevents communication between the inner end of said double-ended needle and said ampoule contents.
Claim 19
Dependent Claim
204 words
A prepackaged hypodermic syringe which, in a storage or pre-use configuration, comprises in combination: (A) a syringe holder having a barrel; an end closure cap removably attached to one end of said barrel, and a double-ended needle and needle hub removably attached to the other end of said barrel; and restraint means within said barrel adjacent the needle/needle hub end thereof, said restraint means comprising either an annular rim, a single tab or multiple tabs in the inside of said barrel adjacent the upper end thereof; and (B) a cartridge ampoule within said barrel, said cartridge ampoule being sealed at its upper end by a slidable piston and at its lower end by a pierceable diaphragm and containing an injectable fluid therein, whereby said restraint means prevents communication between the inner end of said double-ended needle and the contents of said cartridge ampoule when held within said barrel in a pre-use configuration and whereby, upon interchange of said end closure cap and said needle and needle hub on the ends of said barrel to thereby assemble said syringe and cartridge ampoule into a use configuration, said restraint means no longer prevents communication between the inner end of said double-ended needle and said ampoule contents.
Claim 20
Dependent Claim
25 words
A prepackaged hypodermic syringe according to claim 16 wherein said needle and needle hub are integral with a removable plug attached to said syringe barrel.
Claim 21
Dependent Claim
19 words
A prepackaged hypodermic syringe according to claim 17 which includes a needle sheath frictionally attached to said needle hub.
Claim 22
Dependent Claim
19 words
A prepackaged hypodermic syringe according to claim 1 which includes a needle sheath frictionally attached to said needle hub.
Claim 23
Dependent Claim
29 words
A prepackaged hypodermic syringe according to claim 18 wherein said closure cap has an axial hole therethrough for slidably receiving said needle sheath for use thereof as a plunger.
Claim 24
Dependent Claim
29 words
A prepackaged hypodermic syringe according to claim 19 wherein said closure cap has an axial hole therethrough for slidably receiving said needle sheath for use thereof as a plunger.
Claim 25
Dependent Claim
24 words
A prepackaged hypodermic syringe according to claim 20 wherein said needle sheath is provided with an annular collar for use as a thumb plate.
Claim 26
Dependent Claim
24 words
A prepackaged hypodermic syringe according to claim 21 wherein said needle sheath is provided with an annular collar for use as a thumb plate.
Claim 27
Dependent Claim
34 words
A prepackaged hypodermic syringe according to claim 23 wherein said safety plate has a pair of locking tabs and wherein said locking tabs are inserted through slots in the side wall of said barrel.
Claim 28
Dependent Claim
36 words
A prepackaged hypodermic syringe according to claim 22 wherein said needle sheath and said cartridge ampoule are provided with means for making positive engagement with the slidable piston in the upper end of said cartridge ampoule.
Claim 29
Dependent Claim
36 words
A prepackaged hypodermic syringe according to claim 24 wherein said needle sheath and said cartridge ampoule are provided with means for making positive engagement with the slidable piston in the upper end of said cartridge ampoule.
Claim 30
Dependent Claim
35 words
A prepackaged hypodermic syringe according to claim 25 wherein said positive engagement means comprises a threaded hole in the tip of said needle sheath in combination with a mating threaded post on said slidable piston.
Claim 31
Dependent Claim
35 words
A prepackaged hypodermic syringe according to claim 26 wherein said positive engagement means comprises a threaded hole in the tip of said needle sheath in combination with a mating threaded post on said slidable piston.
Claim 32
Dependent Claim
177 words
A prepackaged hypodermic syringe which, in a storage or pre-use configuration, comprises in combination: (A) a syringe holder having a barrel; an end closure cap removably attached to one end of said barrel and a double-ended needle and needle hub removably attached to the other end of said barrel; and restraint means within said barrel adjacent the needle/needle hub end thereof, said restraint means comprising a removable safety plate having a locking tab affixed thereto and positioned within the lower end of said barrel; and (B) a cartridge ampoule within said barrel, said cartridge ampoule being sealed at its upper end by a slidable piston and at its lower end by a pierceable diaphragm and containing an injectable fluid therein, whereby said restraint means prevents communication between the inner end of said double-ended needle and the contents of said cartridge ampoule when held within said barrel in a pre-use configuration and whereby, upon removal of said safety plate, said restraint means no longer prevents communication between the inner end of said double-ended needle and the ampoule contents.
Claim 33
Dependent Claim
177 words
A prepackaged hypodermic syringe which, in a storage or pre-use configuration, comprises in combination: (A) a syringe holder having a barrel; an end closure cap removably attached to one end of said barrel and a double-ended needle and needle hub removably attached to the other end of said barrel; and restraint means within said barrel adjacent the needle/needle hub end thereof, said restraint means comprising a removable safety plate having a locking tab affixed thereto and positioned within the lower end of said barrel; and (B) a cartridge ampoule within said barrel, said cartridge ampoule being sealed at its upper end by a slidable piston and at its lower end by a pierceable diaphragm and containing an injectable fluid therein, whereby said restraint means prevents communication between the inner end of said double-ended needle and the contents of said cartridge ampoule when held within said barrel in a pre-use configuration and whereby, upon removal of said safety plate, said restraint means no longer prevents communication between the inner end of said double-ended needle and the ampoule contents.
Claim 34
Dependent Claim
20 words
A prepackaged hypodermic syringe according to claim 29 wherein said needle and needle hub are integral with said syringe barrel.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-05-01 | 1987-10-31 | 1988-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-01 | 1991-10-31 | 1992-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-01 | 1995-10-31 | 1996-05-01 | $7700.00 | Window Closed / Lapsed |