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Low power portable resuscitation pump

  • US 5,577,891 A
  • Filed: 10/14/1994
  • Issued: 11/26/1996
  • Est. Priority Date: 11/30/1993
  • Status: Expired due to Term
First Claim
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1. A method for pumping a fluid through a first resilient tube and a second resilient tube each having original shapes and held in a substantially parallel relationship, said method comprising the steps of:

  • (a) arranging a pushing mechanism having first and second pushing surfaces adjacent said first and second resilient tubes and with respect to a pivot point such that said first and second pushing surfaces contact said first and second resilient tubes, respectively, and rock in opposite directions;

    (b) rocking said pushing mechanism such that the first pushing surface partially compresses said first resilient tube;

    (c) discharging a first portion of said fluid from an output end of said first resilient tube as said rocking step (b) partially compresses said first resilient tube;

    (d) rocking said pushing mechanism such that said second pushing surface partially compresses said second resilient tube while simultaneously allowing said first resilient tube to resume its said original shape;

    (e) discharging a second portion of said fluid from an output end of said second resilient tube as said rocking step (d) partially compresses said second resilient tube; and

    (f) introducing a third portion of said fluid into said first resilient tube as said first resilient tube resumes its said original shape.

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