Apparatus for collecting body fluid

Details Apparatus for collecting body fluid Apparatus for collecting body fluid

1976-11-15

1978-09-12

Michell, Robert W.

Surgery

Respiratory method or device

Ozone or ion generation

417479, A61M 100

Patent

active

041129490

ABSTRACT:
Apparatus for collecting body fluid utilizes a condition of negative pressure in a chamber for drawing body fluid from an area of a wound at a relatively constant flow rate. The apparatus includes a piston assembly movable in a housing from a first to a second position under forces of atmospheric pressure acting on the piston assembly. The apparatus further comprises an assembly for enabling operation of the piston assembly including at least one cylinder and piston movable therein by pulling on a hand gripping element attached to the piston to develop a partial vacuum in the cylinder. The piston assembly includes a diaphragm which is movable for maintaining the chamber sealed except through a port adapted for receipt of a tube connecting with said wound. The evacuator apparatus may be reused by emptying body fluid from the chamber and reenabling the piston assembly.

REFERENCES:
patent: 2397257 (1946-03-01), Goland et al.
patent: 2432288 (1947-12-01), Danzinger
patent: 2965907 (1960-12-01), Ropecato
patent: 3032037 (1962-05-01), Huber
patent: 3115138 (1963-12-01), McElvenny et al.
patent: 3376868 (1968-04-01), Mondiadis
patent: 3869086 (1974-05-01), Schachet et al.

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