Needleless injection instrument

Details Needleless injection instrument Needleless injection instrument

1987-04-07

1988-02-02

Rosenbaum, C. Fred

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604 68, A61M 530

Patent

active

047227290

ABSTRACT:
In this needleless injection instrument, the piston pump (17) for the medium to be injected is connected to a drive motor (18). On the motor housing (1) of the drive motor, an operating element (2) is fitted displaceably and a stroke counter (7) for counting the applications is arranged. To the free shaft end (11) of the stroke counter, a control cam (6) is fixed which engages with a control pin (4) supported on a control roll (3) which is located in the operating element (2) for the drive motor (18).

REFERENCES:
patent: 1956876 (1934-05-01), Chapman
patent: 3080097 (1963-03-01), Schmaus
patent: 3526225 (1970-09-01), Hayamamachi
patent: 4188984 (1980-02-01), Lyall
patent: 4396384 (1983-08-01), Dettbarn et al.
patent: 4400171 (1983-08-01), Dettbarn et al.
patent: 4560377 (1985-12-01), Geat et al.

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