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Injecting apparatus for medical liquid

  • US 4,215,689 A
  • Filed: 07/17/1978
  • Issued: 08/05/1980
  • Est. Priority Date: 07/27/1977
  • Status: Expired due to Term
First Claim
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1. In an apparatus for injecting liquid into the body including means supporting the apparatus on the torso, a pump, a liquid reservoir connected to the pump, and a conduit connected to the pump and entering into the body for conveying the liquid into the body, the improvement in actuating means for said pump comprising a pump operating member, and drive means connected to said operating member for driving said operating member, said drive means including means movable in response to breathing movement, and said drive means further including indexing means moving the drive means an increment in response to each breathing movement, a plurality of increments of movement resulting in a single pumping operation whereby liquid injection occurs at a frequency less than the breathing frequency.

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