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Implantable pump system

  • US 6,605,032 B2
  • Filed: 02/05/2001
  • Issued: 08/12/2003
  • Est. Priority Date: 10/02/1997
  • Status: Expired due to Term
First Claim
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1. A controller module for an implantable pump system including a pump having an electric motor, the controller module comprising:

  • a processor;

    a motor controller including a reference voltage output terminal and a speed control voltage input terminal;

    a potentiometer having a control input, first and second voltage input terminals and a voltage output terminal, the control input connected to the processor, the first voltage input terminal connected to the reference voltage output terminal;

    a voltage divider, the second voltage input terminal connected to the reference voltage output terminal via the voltage divider; and

    the potentiometer voltage output terminal connected to the speed control voltage input terminal, such that the voltage received at the speed control voltage input terminal varies from a predetermined proportion of the reference voltage output to the reference voltage output.

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