Medicament implant applicator

Details Medicament implant applicator Medicament implant applicator

1987-01-06

1988-08-09

Rosenbaum, C. Fred

Surgery

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

Treating material introduced into or removed from body...

74411, 604 63, A61M 3100

Patent

active

047625155

ABSTRACT:
In pistol grip medicament implanter devices, wherein a trigger coupled to a plunger causes plunger advance movement that expels the medicament from the device when the trigger is pulled, a spring that forms part of the coupling and a lost motion arrangement controlled by the spring that converts trigger pull movement into spring take-up of the trigger movement when the plunger encounters resistance to advance movement greater than the spring bias. The trigger continues to move but the plunger does not, then when resistance to movement of the plunger becomes less than the spring bias, the spring force serves to advance the plunger, recovering the trigger pull motion previously lost.
The greatest force that can be applied by the plunger to the medicament implant has become whatever bias is selected for the spring.

REFERENCES:
patent: 2632444 (1953-03-01), Kas
patent: 2883984 (1954-04-01), Candido, Jr. et al.
patent: 3529704 (1970-09-01), Winstone et al.
patent: 4447223 (1984-05-01), Kaye et al.
patent: 4474572 (1984-10-01), McNaughton et al.
patent: 4576591 (1986-03-01), Kaye et al.
patent: 4687465 (1987-08-01), Prindle et al.

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