07536218 is referenced by 169 patents and cites 23 patents.

A position sensing system includes a probe adapted to be introduced into a body cavity of a subject. The probe includes a magnetic field transducer and at least one probe electrodes. A control unit is configured to measure position coordinates of the probe using the magnetic field transducer. The control unit also measures an impedance between the at least one probe electrodes and one or more points on a body surface of the subject. Using the measured position coordinates, the control unit calibrates the measured impedance.

Title
Hybrid magnetic-based and impedance-based position sensing
Application Number
11/182272
Publication Number
7536218 (B2)
Application Date
July 15, 2005
Publication Date
May 19, 2009
Inventor
Yaron Ephrath
Karkur
IL
Yitzhack Schwartz
Haifa
IL
Andres Claudio Altmann
Haifa
IL
Assaf Govari
Haifa
IL
Agent
Louis J Capezzuto
Assignee
Biosense Webster
CA, US
IPC
A61B 5/05
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