Hand-powered pumping apparatus for perfusion and other fluid cat

Details Hand-powered pumping apparatus for perfusion and other fluid cat Hand-powered pumping apparatus for perfusion and other fluid cat

1994-04-06

1996-02-20

Weiss, John G.

Surgery

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

Treating material introduced into or removed from body...

604151, 417539, 417437, A61M 100, F04B 1100

Patent

active

054925355

ABSTRACT:
A manually operated pumping apparatus which is particularly useful in catheterization procedures has two pumps supported in a housing in a parallel arrangement. The pumps are engaged by a rack and pinion actuating assembly which provides reciprocating linear movement to the two pumps during operation so that one pump performs a pumping stroke while the other pump simultaneously performs a suction stroke. The actuating assembly is driven by a drive assembly which converts rotation of a handle into linear motion usable by the rack and pinion members to drive the two pumps in their reciprocating pumping movements.

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Serial No. 186,667--Layer, "Pumping Apparatus for Perfusion and Other Fluid Catherization Procedures" filed Jan. 25, 1994.
Serial No. 223,867--Layer et al.--"Pumping Apparatus for Perfusion and Other Fluid Catherization Procedures" filed Apr. 19, 1994.

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