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Systems and methods for operating ambulatory medical devices such as drug delivery devices

  • US 5,658,250 A
  • Filed: 11/08/1995
  • Issued: 08/19/1997
  • Est. Priority Date: 07/13/1993
  • Status: Expired due to Term
First Claim
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1. A pump system for infusing fluid into a patient, the pump system comprising:

  • a pump for pumping fluid;

    a microprocessor configured to control the pump;

    a flash memory electronically connected to the microprocessor, the flash memory being partitioned into blocks of memory, the flash memory storing a boot program and a plurality of application programs, one of the application programs being a predetermined application program; and

    wherein the boot program is configured to launch the predetermined application program and the application programs are configured to control operation of the pump.

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