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Evacuator

  • US 4,141,361 A
  • Filed: 05/17/1972
  • Issued: 02/27/1979
  • Est. Priority Date: 02/09/1970
  • Status: Expired due to Term
First Claim
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1. A self-contained, independently operable, evacuator for the extraction of body fluids, for ambulatory human use, said evacuator comprising in combination, a container, a resilient diaphragm formed as a movable end wall of said container with its outer face open to atmosphere, said diaphragm having a normal position which it tends to assume by reason of its resiliency across one end of the container and being operable upon the manual actuation thereof to a stretched negative pressure applying position within the container confines and toward the opposite end thereof with the outer face of the diaphragm remaining open to atmosphere during this movement, said container being provided with an opening into which a conduit of flexing tubing may be connected, the other end of said tubing being of a material compatible with human tissue and being arranged for insertion into a body wound, whereby as said diaphragm returns to normal position across the said one end of the container the negative pressure applied by the diaphragm within the container will effect the extraction of body fluids from the wound by continuous suction, said fluids being thereby expressed into the container for storage therein.

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