Method and arrangement for locating a measurement and/or treatment catheter in a vessel or organ of a patient
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United States of America Patent
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-
Jul 24, 2001
Grant Date -
N/A
app pub date -
Nov 5, 1998
filing date -
Jun 28, 1996
priority date (Note) -
In Force
status (Latency Note)
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Abstract
In a method for locating a measurement and/or treatment catheter in a vessel or organ of a patient relative a fixed catheter, also positioned within the patient in the vicinity of the measurement and/or treatment catheter signals are transmitted from one of the catheters and received at the other one. The position and direction of the measurement and/or treatment catheter relative to the fixed catheter is then determined from the received signals. An arrangement for locating a measurement and/or treatment catheter, intended to be positioned in a vessel or organ of a patient, also includes a fixed catheter, also intended to be positioned within the patient in the vicinity of the measurement and/or treatment catheters. One of the catheters has a signal transmitter and the other one has a signal receiver for receiving signals from the signal transmitter. A signal processor determines from the received signals the position of the measurement and/or treatment catheter relative to the fixed catheter.
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