Injector pump

Details Injector pump Injector pump

1998-05-13

2000-05-16

Smith, Jeffrey A.

Surgery

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

Treating material introduced into or removed from body...

68141, 68143, 68152, A61M 5307

Patent

active

06063054&

ABSTRACT:
A pump, comprising an inlet portion having an ingress channel, an outlet portion having an egress channel, a firing portion, and a manifold having a passage in fluid communication with the ingress channel, the egress channel, and the chamber. The firing portion includes a firing cylinder and a firing piston. The firing piston is capable of performing compression strokes and expansion strokes within the firing cylinder. The firing cylinder forms a chamber in which fluid is drawn during an expansion stroke. A high-pressure actuation device drives the firing piston during the compression stroke to expel a high-pressure jet of fluid from the egress channel. If an injector device is held proximate to flesh, the jet of fluid has sufficient pressure to hypodermically inject the fluid without a needle. The inlet portion, outlet portion, and firing portion of the pump can be rearranged on the manifold to conform to the design requirements for a variety of slap injectors.

REFERENCES:
patent: 3051173 (1962-08-01), Johnson et al.
patent: 3353537 (1967-11-01), Knox et al.
patent: 3515130 (1970-06-01), Tsujino
patent: 3727614 (1973-04-01), Kniazuk
patent: 4596556 (1986-06-01), Morrow et al.
patent: 4680027 (1987-07-01), Parsons et al.
patent: 4913699 (1990-04-01), Parsons
patent: 5632730 (1997-05-01), Reinert

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