Implantable wireless sensor
First Claim
1. A flexible sensor for wirelessly determining a physical property of a patient, which sensor comprises a self-contained resonant circuit comprising a capacitor and an inductor, andwherein the circuit is variable in response to the physical property of the patient,wherein the sensor is comprised of biocompatible materials,wherein the sensor is sufficiently flexible to be folded for delivery percutaneously,wherein the sensor is disk-shaped, andwherein the sensor has an anchoring system attached to a flat surface of the sensor.
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Accused Products
Abstract
The progress of a endovascular aneurysm repair can be monitored by inserting a pressure transducer sensor using a catheter into the sac during endovascular aneurysm repair and then using a small, hand-held read out device to measure pressure easily, safely, inexpensively and accurately. In one aspect a sensor is introduced into the body by the steps of folding or rolling the sensor into a cylinder, loading it into a catheter, and deploying into the aneurysm sac by allowing it to unroll or unfold, either by itself or facilitated by the incorporation of a super-elastic alloy component.
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Citations
44 Claims
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1. A flexible sensor for wirelessly determining a physical property of a patient, which sensor comprises a self-contained resonant circuit comprising a capacitor and an inductor, and
wherein the circuit is variable in response to the physical property of the patient, wherein the sensor is comprised of biocompatible materials, wherein the sensor is sufficiently flexible to be folded for delivery percutaneously, wherein the sensor is disk-shaped, and wherein the sensor has an anchoring system attached to a flat surface of the sensor.
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29. A sensor delivery system comprising:
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a sensor comprising a self contained resonant circuit comprising a capacitor and an inductor, wherein the circuit is variable in response to the physical property of the patient, and wherein the sensor is sufficiently flexible to be folded for delivery percutaneously, and a delivery catheter comprising an inner tubular member having an outer surface and an outer tubular member having an inner surface, the outer surface of the inner tubular member and the inner surface of the outer tubular member defining an annular space therebetween; wherein the sensor is contained within said annular space. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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43. A sensor delivery system comprising:
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a sensor comprising a self-contained resonant circuit comprising a capacitor and an inductor, wherein the circuit is variable in response to the physical property of the patient, and wherein the sensor is sufficiently flexible to be folded for delivery percutaneously; and a delivery catheter comprising an inner tubular member having an outer surface and an outer tubular member having an inner surface, the outer surface of the inner tubular member and the inner surface of the outer tubular member defining an annular space therebetween; wherein the sensor is contained within the annular space, wherein the sensor has a tab member that engages a reciprocal slot in the inner tubular member, wherein the outer tubular member has a slit, and wherein rotation of the inner tubular member causes the sensor to advance through the slit. - View Dependent Claims (44)
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Specification