Infusion device with disposable elements

Pumps – Condition responsive control of pump drive motor – By control of electric or magnetic drive motor

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Details

417474, 417478, 417479, 604 67, 604153, F01B 4312

Patent

active

050747568

ABSTRACT:
An infusion device with a disposable administration set which is inexpensive to manufacture. In the preferred embodiment of the present invention the disposable administration set has a plurality of elongated cam followers connected to a plate assembly, wherein the cam followers are displaced in a predetermined sequence and forced against a delivery tube by cam means driven by rotary drive means. The disposable administration set is injection molded as a single integral piece. The disposable administration set includes adjustment spacers disposed between the plate assembly and the cam followers which adjust the distance between them to keep the device accurate. In the preferred embodiment of the present invention the cam means are configured to provide fluid delivery at a consistent and uniform rate.

REFERENCES:
patent: 4131399 (1978-12-01), Calvert
patent: 4256437 (1981-03-01), Brown
patent: 4277226 (1981-07-01), Archibald
patent: 4479797 (1984-10-01), Kobayashi et al.
patent: 4537561 (1985-08-01), Xanthopoulos
patent: 4573994 (1986-03-01), Fischell et al.
patent: 4650469 (1987-03-01), Berg et al.
patent: 4657490 (1987-04-01), Abbott
patent: 4673334 (1987-06-01), Allington et al.
patent: 4735558 (1988-04-01), Kienholz et al.

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