Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1992-03-05
1993-09-14
Rosenbaum, C. Fred
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604187, 604218, 604232, A61M 500
Patent
active
052444651
ABSTRACT:
A syringe-type injection device for dispensing a preset dose of a liquid drug includes two sleeve-like components releasably connected with each other so as to be aligned in axial direction. One of the sleeve-like components is a holder for a dispensing mechanism and the other of the sleeve-like components is adapted to accommodate an ampoule and a cannula. The dispensing mechanism includes an axially movable piston rod for actuating a plug of the ampoule. The piston rod has a radially projecting cam follower and the holder defines at least one axially extending slot having a predetermined length, wherein the cam follower is received by the at least one slot, such that only a single dose can be dispensed from an ampoule by an axial movement of the piston rod.
REFERENCES:
patent: 4050459 (1977-09-01), Sanchez
patent: 4526294 (1985-07-01), Hirschmann et al.
patent: 4592745 (1986-06-01), Rex et al.
patent: 4832694 (1989-05-01), Raphael, III et al.
patent: 4929238 (1990-05-01), Baum
patent: 4973318 (1990-11-01), Holm et al.
ByK Gulden Lomberg Chemische Fabrik GmbH
Rosenbaum C. Fred
Stright Jr. Ronald K.
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