×

Pressure responsive fluid collection system

  • US 4,191,204 A
  • Filed: 04/14/1975
  • Issued: 03/04/1980
  • Est. Priority Date: 04/14/1975
  • Status: Expired due to Term
First Claim
Patent Images

1. A system for collecting body fluids comprising:

  • (a) a vacuum source;

    (b) a closed fluid collection vessel having an inlet port and an outlet port, said ports being in flow communication above the level of fluid within said vessel;

    (c) an inlet conduit having its discharge end in flow communication with said inlet port and its intake end disposed to be immersed in said body fluid;

    (d) a vacuum conduit connecting said vacuum source and said outlet port; and

    (e) pressure responsive means associated with said vacuum conduit for reducing air flow to said vacuum source in response to a significant increase in pressure within said collection vessel caused by said inlet conduit ingesting significant amounts of air.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×