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Dispensing fluid from an infusion pump system

  • US 20070073228A1
  • Filed: 09/18/2006
  • Published: 03/29/2007
  • Est. Priority Date: 09/26/2005
  • Status: Active Grant
First Claim
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1. A medical infusion pump system, comprising:

  • a pump device having a drive system to cause dispensation of a medicine, the drive system including;

    a pawl that is adjustable relative to a ratchet body, the pawl engaging one or more teeth of the ratchet body to incrementally advance the ratchet body;

    a string member coupled to the pawl, the string member being arranged in a loop around two or more guide structures; and

    a rotational motor coupled to the string member so that rotation by the motor causes the string member to adjust the pawl relative to the ratchet body.

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