Pumping-syringe

Details Pumping-syringe Pumping-syringe

1974-09-13

1976-05-18

Kamm, William E.

Surgery

Respiratory method or device

Ozone or ion generation

A61M 100

Patent

active

039570525

ABSTRACT:
A pumping syringe and attachment for withdrawing fluids from patients and other objects, wherein the fore part of the syringe is provided with a T-passageway configuration accommodating double check valves which need not be spring loaded. Successive withdrawals of the plunge relative to the barrel of the syringe produces successive withdrawals of respective charges of withdrawn liquid; subsequent, respective depressions automatically change the fluid circuit, via check valve self-adjustment, so that fluid is ejected into a laboratory-type or other container or sump.

REFERENCES:
patent: 297989 (1884-05-01), Hardin
patent: 657440 (1900-09-01), McCaw
patent: 714738 (1902-12-01), Perry
patent: 1496126 (1924-06-01), Livingstone
patent: 1771219 (1930-07-01), Hein
patent: 2421959 (1947-06-01), Norris
patent: 2705494 (1955-04-01), Broadwin
patent: 3572375 (1971-03-01), Rosenberg

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