Patent ID: 6527744
Filing Date: 2003-03-04
Classification: A61M

Abstract:
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.