Vacuum device particularly useful for draining wounds

Details Vacuum device particularly useful for draining wounds Vacuum device particularly useful for draining wounds

1991-01-03

1991-12-10

Hirsch, Paul J.

Surgery

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

Treating material introduced into or removed from body...

128766, 604133, 604187, A61M 100, A61B 514

Patent

active

050714090

ABSTRACT:
A vaccum device includes a cylinder, a plunger receivable through the open end of the cylinder and having a piston movable within the cylinder to define a suction chamber; and indicia carried by the cylinder cooperable with a reference on the plunger for providing a visual indication of the suction in the suction chamber. The indicia is in the form of a curve representing the variation of pressure in the suction chamber with the volume of the chamber as indicated by a reference on the piston.

REFERENCES:
patent: 2594621 (1952-04-01), Derrick
patent: 4215702 (1920-08-01), Ayer
patent: 4319582 (1982-03-01), Eldridge
patent: 4340068 (1962-07-01), Kaufman
patent: 4403987 (1983-09-01), Gottinger
patent: 4578060 (1986-03-01), Huck et al.
patent: 4664128 (1987-05-01), Lee
patent: 4838855 (1989-06-01), Lynn
patent: 4966585 (1990-10-01), Gangemi

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