Non-reusable hypodermic syringe with turbine accuated flow cessa

Details Non-reusable hypodermic syringe with turbine accuated flow cessa Non-reusable hypodermic syringe with turbine accuated flow cessa

1989-07-10

1991-09-03

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

604207, 604237, A61M 550

Patent

active

050450620

ABSTRACT:
A hypodermic syringe and needle includes a sealing mechanism to prevent reuse of the syringe by preventing the re-establishment of the flow of fluid after the passage of a predetermined quantity of fluid through the sealing mechanism. A fluid turbine is rotated by the fluid flow, and the turbine is carried by an actuator that moves along a threaded rod, the actuator carrying one part of a seal. After predetermined movement, the one part of a seal engages the other part of a seal and blocks fluid flow. While fluid is flowing, the seal parts are held apart for continued flow; but, on cessation of fluid flow, the seal parts engage and prevent subsequent fluid flow.

REFERENCES:
patent: 4412836 (1983-11-01), Brignola
patent: 4781683 (1988-11-01), Wozniak et al.
patent: 4838866 (1989-06-01), Marshall, Sr.
patent: 4857061 (1989-08-01), Miller
patent: 4952206 (1990-08-01), Ibanez e al.

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