Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1994-05-06
1996-01-16
Kamm, William E.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
A61N 104
Patent
active
054844045
ABSTRACT:
A replaceable catheter system provides a way to replace an implantable sensor, electrode system, and/or fluid delivery/receiving system. The replaceable catheter includes an elongated tubular catheter holder for surgical implantation in a patient. The catheter holder has an open neck at a proximal end thereof just under the patient's skin. A distal end of the catheter holder extends into a body cavity in the patient. A manually replaceable catheter is inserted through a self-sealing barrier over the open end of the catheter holder. A distal end of the replaceable catheter extends longitudinally through the catheter holder and beyond the distal end thereof to expose one or more physiological/chemical sensors, tissues stimulating electrodes, and/or a fluid delivery/receiving tube carried by or formed within the replaceable catheter. The sensors and/or electrodes are electrically connected to an electronic package including a signal coupler adjacent a signal coupler carried by the catheter holder. The signal coupler is connected to an implanted control device whereby electrical signals are transmitted to and/or from the sensor and/or electrode from the control device. The control device may include, or be connected to, an implantable fluid dispenser/analyzer for dispensing or analyzing fluid via a conduit connected through the catheter holder to an opening in the replaceable catheter.
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Mann Alfred E.
Schulman Joseph H.
Alfred E. Mann Foundation for Scientific Research
Kamm William E.
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