Patent ID: 6200293
Filing Date: 2001-03-13
Classification: A61M,Y10S

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) distendable means for forming, in conjunction with said surface of said housing, a fluid reservoir having an inlet and an outlet, said distendable means comprising at least one distendable membrane at least a portion of which is movable within said housing from a first position to a second position;(c) expandable means disposed within said housing in proximity to said distendable membrane, said expandable means comprising a semi-solid, which, upon being stimulated, will act upon said distendable membrane to move said membrane toward said second position to cause fluid within said reservoir to flow outwardly of said outlet of said reservoir;(d) stimulation means for stimulating said expandable means; and(e) infusion means in communication with said outlet of said reservoir for infusing fluid from said fluid reservoir into the patient.