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Fluid delivery device with light activated energy source

  • US 6,527,744 B1
  • Filed: 06/28/2000
  • Issued: 03/04/2003
  • Est. Priority Date: 08/27/1997
  • Status: Expired due to Fees
First Claim
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1. A device for use in infusing medicinal fluid into a patient at a controlled rate comprising:

  • (a) a housing having a surface and including a base and a cover superimposed over said base;

    (b) means for forming, in conjunction with said surface of said housing, a fluid reservoir containing a fluid and having an inlet and an outlet;

    (c) a light stimulated, expandable means disposed within said housing in proximity to said reservoir, said expandable means comprising a semi-solid, which, upon being stimulated, will act upon said fluid within said reservoir to cause said fluid to flow outwardly of said outlet of said reservoir;

    (d) stimulation means for stimulating said expandable means, said stimulation means comprising a source of light; and

    (e) infusion means in communication with said outlet of said reservoir for infusing fluid from said fluid reservoir into the patient.

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