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Infusion pump with battery back-up

  • US 5,321,392 A
  • Filed: 10/18/1991
  • Issued: 06/14/1994
  • Est. Priority Date: 10/18/1991
  • Status: Expired due to Fees
First Claim
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1. An infusion pump system comprising;

  • pump means for delivering a drug to a patient;

    a power supply for providing power to said pump means, said power supply including battery holder means and a battery disposed in said battery holder, said battery being one of a disposable and a rechargeable battery, said battery holder including a first and a second contact for contacting the terminals of said disposable battery and an additional contact for contacting an additional terminal of said rechargeable battery;

    monitoring means coupled to said contacts to detect the type of battery connected to said contacts for monitoring said power supply to determine a reserve energy level of said power supply; and

    an alarm means coupled to said monitoring means for generating an alarm signal when said reserve energy level falls below a threshold.

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