04871351 is referenced by 816 patents and cites 21 patents.

An implantable medication delivery system comprising an implantable unit with a refillable reservoir, a catheter connected thereto, and a pumping mechanism activated by a microcomputer or microprocessor for pumping medication from the reservoir through the catheter into the body. The implantable medication unit receives information and control commands via a telemetry link from an external controller unit having a microprocessor. The external controller receives feedback in the form of intermittent sampling of blood using enzyme strips and a reflectance meter and/or additional sensor(s) which measure(s) physiological parameter(s) such as heart rate or blood pressure or temperature or skin resistivity. The feedback information is processed by the external unit in accordance with a mathematical model of the patient and the relevant parameters are transmitted to the implanted unit which adjusts its delivery profile according to a prescribed algorithm. The external unit can also detect an alarm condition and take appropriate steps, e.g. abort infusion.

Implantable medication infusion system
Application Number
Publication Number
Application Date
August 26, 1987
Publication Date
October 3, 1989
Vladimir Feingold
49 Gumnut Road, Cherrybrook, New South Wales 2120
Ladas & Parry
A61M 5/20
View Original Source