Method for mapping temperature profile of a hollow body organ
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United States of America Patent
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N/A
Issued Date -
Jan 16, 2003
app pub date -
Jul 12, 2001
filing date -
Jul 12, 2001
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method for sensing the temperature profile of a hollow body organ includes a catheter and a guidewire. The guidewire is configured as a plurality of helical loops of greater diameter than the catheter when unconstrained. When constrained within the catheter, the guidewire can be advanced to a region of interest in hollow body organ. The catheter can be withdrawn, leaving the guidewire in place in an expanded configuration wherein the helical loops contact the inner wall of the hollow body organ. A thermal sensor is disposed proximate the distal end of the catheter. The distal end of the catheter, being relatively more flexible than the guidewire, traverses a helical path in contact with the inner wall of the hollow body organ, guided by the helical loops of the guidewire.
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