IMPLANT AND DELIVERY SYSTEM FOR NEURAL STIMULATOR

An apparatus is provided including an implantable neural stimulator which is advanced through a greater palatine canal to a sphenopalatine ganglion (SPG) of a subject and has an implant-impedance-sensing electrode. The apparatus further includes an auxiliary impedance-sensing electrode and first and...

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Bibliographische Detailangaben
Hauptverfasser:	Dayan, Avinoam, Dvorsky, Israel, Shai, Eyal
Format:	Patent
Sprache:	eng
Schlagworte:	DIAGNOSIS ELECTROTHERAPY HUMAN NECESSITIES HYGIENE IDENTIFICATION MAGNETOTHERAPY MEDICAL OR VETERINARY SCIENCE RADIATION THERAPY SURGERY ULTRASOUND THERAPY
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Beschreibung
Zusammenfassung:	An apparatus is provided including an implantable neural stimulator which is advanced through a greater palatine canal to a sphenopalatine ganglion (SPG) of a subject and has an implant-impedance-sensing electrode. The apparatus further includes an auxiliary impedance-sensing electrode and first and second wires, electrically coupled respectively to the implant-impedance-sensing and auxiliary-impedance-sensing electrodes. Impedance-based navigation circuitry includes a voltage generator configured to apply, current between the implant-impedance-sensing and auxiliary-impedance-sensing electrodes through the wires; an impedance sensor configured to measure an impedance between the implant-impedance-sensing and auxiliary-impedance-sensing electrodes based on the applying of the current; and a disposition tracker configured to determine, based on a change in the measured impedance, a disposition of the implantable neural stimulator in the greater palatine canal. Other applications are also described.