Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1993-09-29
1996-03-19
Rosenbam, C. Fred
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604 72, A61M 530
Patent
active
054999723
ABSTRACT:
An ampule containing a liquid, e.g., a dose of medicine, connects to a hand-held portable power unit containing an energy accumulator which can be charged and then discharged by manual actuation of a trigger. Preferably the energy accumulator is a compressible spring which is charged by compressing it and discharged by releasing it. The discharging accumulator powers a thruster, preferably a rod, driving it against a plunger in the ampule. The driven plunger applies pressure to the liquid in the ampule and drives the liquid through a small tapered orifice having an open mouth. During an injection, the open mouth of the orifice is pressed against an injection site so that the liquid being forced through the orifice can hypodermically penetrate the injection site. The preferred compressible spring can be charged by forcing the thruster backward against the spring, compressing it to a point where a latching device catches it and holds it compressed. A carrying case automatically recharges the accumulator in this manner whenever the power unit is seated therein and the case's lid is closed. The trigger releases the latching device. Preferably there are two independent safeties to prevent inadvertent triggering of the power unit. One safety jams the trigger unless power unit has an ampule properly engaged, and a second safety for optional use is a slide that also jams the trigger. The ampules can be single-use, disposable items. An ampule loader is also disclosed.
REFERENCES:
patent: 2398544 (1946-04-01), Lockhart
patent: 2737946 (1956-03-01), Hein
patent: 2762369 (1956-09-01), Venditty
patent: 2762370 (1956-09-01), Venditty
patent: 2800903 (1957-07-01), Smoot
patent: 2902994 (1959-09-01), Scherer
patent: 3335722 (1967-08-01), Lowry et al.
patent: 3688765 (1972-09-01), Gasaway
patent: 3788315 (1974-01-01), Laurens
patent: 4165739 (1979-08-01), Doherty et al.
patent: 4378015 (1983-03-01), Wardlow
patent: 4518385 (1985-05-01), Lindmayer et al.
patent: 4643721 (1987-02-01), Brunet
patent: 4680027 (1987-07-01), Parsons et al.
patent: 4722728 (1988-02-01), Dixon
patent: 4874367 (1989-10-01), Edwards
patent: 4913699 (1990-04-01), Parsons
patent: 5026343 (1991-06-01), Holzer
patent: 5062830 (1991-11-01), Dunlap
patent: 5085641 (1992-02-01), Sarnoff et al.
patent: 5190523 (1993-03-01), Lindmayer
Alexander V.
Equidyne Systems, Inc.
Rosenbam C. Fred
LandOfFree
Hypodermic jet injector does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hypodermic jet injector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hypodermic jet injector will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1956308