Parenteral fluid medication reservoir pump
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United States of America Patent
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Nov 29, 1994
Grant Date -
N/A
app pub date -
Feb 26, 1993
filing date -
Feb 26, 1993
priority date (Note) -
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status (Latency Note)
Importance
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.
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