Parenteral fluid medication reservoir pump

Details Parenteral fluid medication reservoir pump Parenteral fluid medication reservoir pump

1993-02-26

1994-11-29

Weiss, John G.

Surgery

Controlled release therapeutic device or system

Implanted dynamic device or system

604131, 604132, 424423, 2223865, A61K 922

Patent

active

053685881

ABSTRACT:
A parenteral fluid medication pump comprises a reservoir filled with fluid medication. The medication is continuously discharged over an extended period into the patient. The continuous discharge is obtained by a shrink polymer wall for the reservoir which is powered by the relaxation of forces which are internal to the shrink polymer. In the principal embodiment the device pumps from a reservoir which is surgically implanted and internal to the patient. A reservoir depletion warning for surgically implanted pumps which creates a physiological indicator is also taught. In other embodiments the device is capable of magnetic, external-triggered disablement.

REFERENCES:
patent: 3710795 (1973-01-01), Higuchi et al.
patent: 4180073 (1979-12-01), Michaels
patent: 4192308 (1980-03-01), Michaels
patent: 4304232 (1981-12-01), Michaels
patent: 4957119 (1990-09-01), de Nijs
patent: 5019372 (1991-05-01), Folkman et al.
patent: 5053032 (1991-10-01), Barclay et al.
patent: 5188260 (1993-02-01), Bettinger

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