Combination sensor guidewire and methods of use
First Claim
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1. A guide wire assembly, comprising:
- a flexible elongate tubular member having a proximal end and a distal end, a lumen extending therebetween defining an indoluminal surface, wherein the flexible elongate tubular member further comprises a plurality of coaxial polyimide layers and at least one of the plurality of coaxial polyimide layers defines the lumen of the flexible elongate tubular member, and wherein at least one longitudinal recess is defined within the indoluminal surface and extends longitudinally along a length of the tubular member, wherein the flexible elongate tubular member has an outer diameter of 0.014″
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a core wire coaxially positioned in at least a portion of the lumen of the flexible elongate tubular member, wherein an outer diameter of the core wire is substantially the same size as a diameter of the lumen of the flexible elongate tubular member;
a combination sensor housing coupled to the distal end of the flexible elongate tubular member, having a distal end and a proximal end, and a lumen extending therebetween;
a flow sensor secured to the combination sensor housing;
a pressure sensor disposed within the lumen of the combination sensor housing towards the distal end of the housing, wherein the pressure sensor and the flow sensor are located in close proximity to each other;
a plurality of electrical connectors extending longitudinally from the pressure sensor to substantially the proximal end of the flexible elongate member; and
a plurality of electrical connectors extending longitudinally from the flow sensor to substantially the proximal end of the flexible elongate member;
wherein the pluralities of electrical connectors for the pressure sensor and the flow sensor are embedded between the polyimide layers of the flexible elongate tubular member and positioned within the at least one longitudinal recess.
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Abstract
The present invention provides for an improved combination sensor tip that includes an ultrasound transducer and a pressure sensor both disposed at or in close proximity to the distal end of the combination sensor tip. The present invention also provides for an improved connector to couple a guide wire to a physiology monitor that reduces torsional resistance when maneuvering the guide wire.
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Citations
23 Claims
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1. A guide wire assembly, comprising:
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a flexible elongate tubular member having a proximal end and a distal end, a lumen extending therebetween defining an indoluminal surface, wherein the flexible elongate tubular member further comprises a plurality of coaxial polyimide layers and at least one of the plurality of coaxial polyimide layers defines the lumen of the flexible elongate tubular member, and wherein at least one longitudinal recess is defined within the indoluminal surface and extends longitudinally along a length of the tubular member, wherein the flexible elongate tubular member has an outer diameter of 0.014″
;a core wire coaxially positioned in at least a portion of the lumen of the flexible elongate tubular member, wherein an outer diameter of the core wire is substantially the same size as a diameter of the lumen of the flexible elongate tubular member; a combination sensor housing coupled to the distal end of the flexible elongate tubular member, having a distal end and a proximal end, and a lumen extending therebetween; a flow sensor secured to the combination sensor housing; a pressure sensor disposed within the lumen of the combination sensor housing towards the distal end of the housing, wherein the pressure sensor and the flow sensor are located in close proximity to each other; a plurality of electrical connectors extending longitudinally from the pressure sensor to substantially the proximal end of the flexible elongate member; and a plurality of electrical connectors extending longitudinally from the flow sensor to substantially the proximal end of the flexible elongate member; wherein the pluralities of electrical connectors for the pressure sensor and the flow sensor are embedded between the polyimide layers of the flexible elongate tubular member and positioned within the at least one longitudinal recess. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A guide wire assembly for use within human vasculature, comprising:
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a flexible elongate tubular member having; a proximal portion, a distal portion, a lumen extending between the proximal and distal portions and defining an indoluminal surface, and at least one longitudinal recess defined within the indoluminal surface of the tubular member, the at least one longitudinal recess extending longitudinally along a length of the tubular member; wherein an outer diameter of the flexible elongate tubular member is 0.0014″
;a core wire coaxially positioned in at least a portion of the lumen of the flexible elongate tubular member, the core wire having an outer diameter that is substantially the same size as a diameter of the lumen of the flexible elongate tubular member; and a plurality of electrical connectors extending longitudinally from the distal portion to the proximal portion of the flexible elongate tubular member, wherein each of the plurality of electrical connectors is positioned within the at least one longitudinal recess. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification