Abstract: An intraluminal sensing guidewire obtains physiological data within a body lumen of a patient. The guidewire includes a flexible elongate member configured to be positioned within the body lumen. The flexible elongate member includes a metallic core wire extending along a longitudinal axis. The guidewire also includes a sensing element at a distal portion of the flexible elongate member that obtains the physiological data, an electrical connector at a proximal portion of the flexible elongate member, and a filar bundle disposed between the sensing element and the electrical connector. The filar bundle includes a conductive filar in electrical communication with the sensing element and the electrical connector. The bundle also includes a reinforcement filar with a material strength greater than the material strength of the conductive filar.

Abstract: A stent and a magnetoelastic resonant sensor are provided for sensor a physical characteristic in a bodily vessel or cavity. External coils interact with the sensor to induce a resonance that is responsive to the physical characteristic, such that the device may wirelessly measure physical characteristics such as mass loading effects and viscosity changes due to progression of pathology in implanted stents and stent grafts. The sensor may be fashioned from a magnetoelastic material and may be integrated near the inner sidewall of the stent. The sensor may take on a complex patterned shape to enhance the sensitivity and flexibility of the sensor structure. When the sensor is interrogated with a time-varying magnetic field, the sensor will mechanically vibrate and generate a magnetic flux which is maximum at a resonant characteristic determined by the mass load on the sensor and the viscosity of the fluid surrounding the sensor.

Abstract: A stent and a magnetoelastic resonant sensor are provided for sensor a physical characteristic in a bodily vessel or cavity. External coils interact with the sensor to induce a resonance that is responsive to the physical characteristic, such that the device may wirelessly measure physical characteristics such as mass loading effects and viscosity changes due to progression of pathology in implanted stents and stent grafts. The sensor may be fashioned from a magnetoelastic material and may be integrated near the inner sidewall of the stent. The sensor may take on a complex patterned shape to enhance the sensitivity and flexibility of the sensor structure. When the sensor is interrogated with a time-varying magnetic field, the sensor will mechanically vibrate and generate a magnetic flux which is maximum at a resonant characteristic determined by the mass load on the sensor and the viscosity of the fluid surrounding the sensor.