Device for sensing temperature profile of a hollow body organ
First Claim
1. A device for sensing the temperature profile of a hollow body organ, comprising:
- a catheter having a longitudinal axis;
a hollow guidewire being disposable in a relaxed configuration externally of the catheter, and in a contracted configuration internally of the catheter;
a temperature sensor connected to the guidewire and moveable therewith, the temperature sensor being displaced laterally relative to the longitudinal axis of the catheter when the guidewire is in the relaxed configuration.
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Abstract
A device for sensing the temperature profile of a hollow body organ includes a catheter and hollow a guidewire carrying a thermal sensor. The hollow guidewire is configured to displace the thermal sensor radially relative to the catheter when unconstrained and can be rotated about the longitudinal axis of the catheter. 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 The catheter can be withdrawn, leaving the guidewire in place in an expanded configuration wherein the thermal sensor contacts the inner wall of the hollow body organ. The guidewire is moveable to sense the temperature at multiple locations. The thermal sensor can be replaced with an electrode for sensing the impedance profile of the hollow body organ.
245 Citations
19 Claims
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1. A device for sensing the temperature profile of a hollow body organ, comprising:
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a catheter having a longitudinal axis;
a hollow guidewire being disposable in a relaxed configuration externally of the catheter, and in a contracted configuration internally of the catheter;
a temperature sensor connected to the guidewire and moveable therewith, the temperature sensor being displaced laterally relative to the longitudinal axis of the catheter when the guidewire is in the relaxed configuration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A device for sensing the impedance profile of a hollow body organ, comprising:
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a catheter having a longitudinal axis;
a hollow guidewire being disposable in a relaxed configuration externally of the catheter, and in a contracted configuration internally of the catheter;
an electrode connected to the guidewire and moveable therewith, the electrode being displaced laterally relative to the longitudinal axis when the guidewire is in the relaxed configuration.
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Specification