Guide for mechanical guiding of a catheter in connection with cardio and vascular examination
First Claim
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1. A guide wire having a distal end and proximal end for mechanically guiding a medical probe, comprising:
- (a) a miniaturized pressure sensor disposed at the distal end of the guide wire;
(b) an air ventilation passage connecting the pressure sensor to a source of reference pressure;
(c) a sheath formed of at least a first part adjacent the proximal end and a second part adjacent the pressure sensor, the sheath determining the torsional stiffness of the guide wire;
(d) the first part being substantially inflexible and the second part being more flexible.
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Abstract
A guidewire for guiding a catheter is provided including a pressure sensor at the distal end of the guidewire and a ventilation passage for connecting the pressure sensor to ambient pressure.
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Citations
26 Claims
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1. A guide wire having a distal end and proximal end for mechanically guiding a medical probe, comprising:
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(a) a miniaturized pressure sensor disposed at the distal end of the guide wire; (b) an air ventilation passage connecting the pressure sensor to a source of reference pressure; (c) a sheath formed of at least a first part adjacent the proximal end and a second part adjacent the pressure sensor, the sheath determining the torsional stiffness of the guide wire; (d) the first part being substantially inflexible and the second part being more flexible. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification