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Ambulatory patient infusion apparatus

  • US 5,558,639 A
  • Filed: 06/10/1993
  • Issued: 09/24/1996
  • Est. Priority Date: 06/10/1993
  • Status: Expired due to Fees
First Claim
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1. Infusion apparatus comprising:

  • a control module having motor means;

    a cassette adapted for connection to said control module and having solution containing means therein, said cassette having a side thereof configured for matingly slidably engaging a side of said control module for connecting the two parts together as a unit;

    a valve assembly within said cassette for controlling flow of solution from said solution containing means;

    a piston member within said valve assembly, said piston member having a head protruding from said side of said cassette; and

    reciprocable means within said control module protruding from said side thereof and reciprocated by said motor means, said reciprocable means and said head having coacting engaging configurations for enabling releasable attachment with said cassette positioned with its side in abutting relation with said side of said control module with said sides out of alignment, the sliding of one of said cassette and said module relative to the other both interlocking the two parts and engaging said head with said reciprocable means.

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