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US4512767A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus for performing intradermal, subcutaneous of intramuscular injections

Assignee: Individual
•
Filing: 1983-03-30
•
Granted: 1985-04-23
•
Expires: 2003-03-30
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Abstract

Abstract An injection device useful either for manual injection or mechanical injection, comprises a cross frame having the shape of a revolver. A removable injection syringe having a syringe piston and at least one needle, is mounted on the cross frame, and a syringe cradle secures the syringe to the cross frame. A device is provided for positioning the penetration and to predetermine the degree of penetration of the needle. There is a trigger on the cross frame, and a pawl is actuated by the trigger. The pawl rotates a barrel step by step upon repeated actuation of the trigger. A screw-threaded axle is rotated by the barrel, and a screw-threaded slider is in screw-threaded engagement with the screw-threaded axle and moves forward upon rotation of the axle. The slider and the syringe piston are interconnected to advance the syringe piston stepwise upon repeated actuation of the trigger.

Inventors

  • 👤 Raymond Denance

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 06:34
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/20

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 153 words
An injection device useful either for manual injection or mechanical injection, comprising a cross frame (1) having the shape of a revolver, a removable injection syringe (4) having a syringe piston and at least one needle (8), a syringe cradle securing said syringe to the cross frame (1), means to position the penetration and to predetermine the degree of penetration of said at least one needle, a trigger (13) on the cross frame, a pawl (19) actuated by the trigger, a barrel (26) that is rotated step by step by the pawl upon repeated actuation of the trigger, a screw-threaded axle (27) rotated by the barrel, a screw-threaded slider (3) that is in screw-threaded engagement with said screw-threaded axle (27) and that moves forward upon rotation of said axle, and means (28) interconnecting said slider (3) and said syringe piston to advance said syringe piston stepwise upon repeated actuation of said trigger (13).
Claim 2
Dependent Claim 153 words
An injection device useful either for manual injection or mechanical injection, comprising a cross frame (1) having the shape of a revolver, a removable injection syringe (4) having a syringe piston and at least one needle (8), a syringe cradle securing said syringe to the cross frame (1), means to position the penetration and to predetermine the degree of penetration of said at least one needle, a trigger (13) on the cross frame, a pawl (19) actuated by the trigger, a barrel (26) that is rotated step by step by the pawl upon repeated actuation of the trigger, a screw-threaded axle (27) rotated by the barrel, a screw-threaded slider (3) that is in screw-threaded engagement with said screw-threaded axle (27) and that moves forward upon rotation of said axle, and means (28) interconnecting said slider (3) and said syringe piston to advance said syringe piston stepwise upon repeated actuation of said trigger (13).
Claim 3
Dependent Claim 70 words
An injection device as claimed in claim 1, in which said means to position the penetration and to determine the degree of penetration of said at least one needle comprises an injection aimer (5) secured to a support (9), a guide (11), a pin (12), and adjustment means permitting positioning the penetration of said at least one needle and predetermining the degree of penetration of said at least one needle.
Claim 4
Dependent Claim 52 words
An injection device as claimed in claim 1, and a screw (15) carried by said trigger serving as the axle for a latch (16) and securing an abutment (17) to a control member (18) for actuating said pawl, said latch being positionable selectively to connect or disconnect said trigger to said pawl.

References Cited (Backward Citations)

US2591457A Cited
US3064650A Cited
US3494358A Cited
US3790048A Cited
US4198975A Cited
US4333459A Cited
US4403989A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1988-04-22 1988-10-22 1989-04-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1992-04-22 1992-10-22 1993-04-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1996-04-22 1996-10-22 1997-04-23 $7700.00 Window Closed / Lapsed

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