Pressure-sensing intravascular devices, systems, and methods
First Claim
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1. An intravascular sensor assembly comprising:
- a flexible elongate member;
a core member disposed inside the flexible elongate member;
an electrical conductor extending along the core member; and
an elongated substrate disposed distal to the core member and inside the flexible elongate member, the elongated substrate comprising;
a plurality of electrodes disposed within the elongated substrate and extending through the elongated substrate in a longitudinal direction, the plurality of electrodes being uniformly distributed around a longitudinal axis (LA) of the elongated substrate, wherein the electrical conductor is coupled to at least one electrode; and
a sensor circuit disposed on a distal surface of the elongated substrate, the sensor circuit coupled to at least one electrode, wherein the sensor circuit comprises an intravascular pressure sensor circuit.
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Abstract
Intravascular devices, systems, and methods are disclosed. In some embodiments, the intravascular devices include at least one pressure sensing component within a distal portion of the device. In that regard, one or more electrical, electronic, optical, and/or electro-optical pressure-sensing components is secured to an elongated substrate such that the pressure-sensing component is mounted perpendicular to a central longitudinal axis of the device. In some implementations, the elongated substrate has a cylindrical profile. Methods of making, assembling, and/or using such intravascular devices and associated systems are also provided.
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Citations
19 Claims
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1. An intravascular sensor assembly comprising:
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a flexible elongate member; a core member disposed inside the flexible elongate member; an electrical conductor extending along the core member; and an elongated substrate disposed distal to the core member and inside the flexible elongate member, the elongated substrate comprising; a plurality of electrodes disposed within the elongated substrate and extending through the elongated substrate in a longitudinal direction, the plurality of electrodes being uniformly distributed around a longitudinal axis (LA) of the elongated substrate, wherein the electrical conductor is coupled to at least one electrode; and a sensor circuit disposed on a distal surface of the elongated substrate, the sensor circuit coupled to at least one electrode, wherein the sensor circuit comprises an intravascular pressure sensor circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A sensor structure for use in an intravascular device assembly, the sensor structure comprising:
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a substrate comprising an elongated shape with a length defined along a longitudinal axis (LA) and a width extending perpendicular to the longitudinal axis, the shape further comprising; a proximal surface and an opposing distal surface, each extending substantially perpendicular to the LA; and an outer surface extending substantially parallel to the LA; a plurality of electrodes disposed within the substrate and extending longitudinally through the substrate, the plurality of electrodes being uniformly distributed around the LA, wherein at least one electrode is coupled to an electrical conductor of the intravascular device assembly; and a sensor circuit disposed on the distal surface, the sensor circuit comprising at least one lead coupled to at least one electrode, wherein the sensor circuit comprises an intravascular pressure sensor circuit. - View Dependent Claims (10, 11, 12, 13)
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14. A system for performing measurements using a sensor exposed to an intravascular environment, the system comprising:
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an intravascular device comprising; a flexible elongate member; a core member disposed inside the flexible elongate member; an electrical conductor extending along the core member; and an elongated substrate disposed distal to the core member and inside the flexible elongate member, the elongated substrate comprising; a plurality of electrodes disposed within the elongated substrate and extending through the elongated substrate in a longitudinal direction, the plurality of electrodes uniformly distributed around a longitudinal axis (LA) of the elongated substrate, wherein the electrical conductor is coupled to at least one electrode; and a sensor circuit disposed on a distal surface of the elongated substrate, the sensor circuit coupled to at least one electrode, wherein the sensor circuit comprises an intravascular pressure sensor circuit; and a control console coupled to the intravascular device. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification