Plural dosage automatic injector with improved safety

Details Plural dosage automatic injector with improved safety Plural dosage automatic injector with improved safety

1983-12-21

1986-03-25

Rosenbaum, C. Fred

Surgery

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

Treating material introduced into or removed from body...

604137, 604201, A61M 500

Patent

active

045780641

ABSTRACT:
A plural dosage automatic injector comprising an elongated tubular housing assembly having side by side first and second medicament injecting assemblies each including a container, a hypodermic needle, a liquid medicament and a plunger within the forward end portion thereof and, first and second stressed spring assemblies in the rearward end portion thereof disposed in operative relation with said first and second medicament injecting assemblies for operating the latter. A manually operable safety device is provided which includes a first safety pin operable (1) when in a safety position with respect to the first spring stressed assembly to prevent actuation and release thereof and (2) when removed from its safety position to permit the actuation and release of the second stressed spring assembly. A mechanical motion transmitting mechanism is provided which is operable to transmit a movement occurring as a result of the actuation and release of the first stressed spring assembly into a secondary actuating movement operable to (1) effect a relative movement between the automatic safety pin and the second stressed spring assembly sufficient to remove the automatic safety pin from its safety position and (2) thereafter actuate and release second stressed spring assembly to operate the second medicament injecting assembly.

REFERENCES:
patent: 4226235 (1980-10-01), Sarnoff et al.
patent: 4329988 (1982-05-01), Sarnoff et al.

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