Locking mechanism for the removable vaccine pump of a needleless

Details Locking mechanism for the removable vaccine pump of a needleless Locking mechanism for the removable vaccine pump of a needleless

1985-07-22

1987-02-10

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

046420959

ABSTRACT:
In a needleless injection instrument with a removable vaccine pump, the motor housing (1) is provided with a receiving bush (20) which is to receive the vaccine pump. In an opening (7) in the motor housing (1) and the receiving bush (20), a bolt (6) is located which is loaded by a spring (9) and has a nose (5) which engages in a recess (4) in the pump housing (18). The motor housing is also provided with a displaceable operating element (8), to which the bolt (6) is connected and which has a recess (11) for receiving a locking device (14). The locking device (14) is fixed by means of a leaf spring (13) to the motor housing; it can engage either in a groove (15), located in a spring housing (17) provided in the motor housing, or in the recess (11) of the operating element (8).

REFERENCES:
patent: 4400171 (1983-08-01), Dettbarn et al.
patent: 4411650 (1983-10-01), Dettbarn et al.
patent: 4560377 (1985-12-01), Geat et al.

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