×

Apparatus and method for the collection of interstitial fluids

  • US 6,468,229 B1
  • Filed: 01/26/2001
  • Issued: 10/22/2002
  • Est. Priority Date: 10/20/1998
  • Status: Expired due to Term
First Claim
Patent Images

1. An apparatus for the collection of interstitial fluids from the body of an animal, comprising:

  • a cylinder;

    a piston capable of traveling upwardly and downwardly in said cylinder, said piston having an upper surface and a pressure head, said pressure head having an aperture extending therethrough and in fluid communication with a reservoir, said aperture having an area less than the area of said pressure head;

    a means for evacuating air from said cylinder, so that said piston can be forced to move downwardly by means of atmospheric pressure acting on said upper surface of said piston, whereby said piston is capable of exerting a positive pressure on a surface.

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