Catheter flushing apparatus

Details Catheter flushing apparatus Catheter flushing apparatus

1979-06-25

1981-09-29

Howell, Kyle L.

Surgery

Truss

Pad

128214E, 137238, 251117, A61B 502

Patent

active

042917026

ABSTRACT:
A flow control apparatus is disclosed which is particularly useful in liquid flow systems for blood pressure monitoring in humans and other animals. A resiliently biased valve plunger is provided with a marine bore capillary passage extending from one side of the plunger seating area to the other, thus establishing a first, low flow path. When the plunger is moved from its seat, a second, high flow path is established which flushes the apparatus. In one embodiment, the apparatus is combined with a pressure transmitting diaphragm assembly used to transmit pressure to instrumentation, the flush flow then serving to sweep air from the plenum above the diaphragm.

REFERENCES:
patent: 1005409 (1911-10-01), Bruns
patent: 2411667 (1946-11-01), Mowrey
patent: 2655170 (1953-10-01), Ferguson
patent: 2955614 (1960-10-01), Meynig
patent: 3298367 (1967-01-01), Bergman
patent: 3474816 (1969-10-01), Burgess
patent: 3675891 (1972-07-01), Reynolds et al.
patent: 3877428 (1975-04-01), Seagle et al.

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