Abstract: An implantable sensor for implantation in a vessel, comprising a plurality of electrodes for placement on, in or adjacent a vessel wall, means for providing a drive signal to the electrodes, means for measuring at least one of impedance and capacitance between at least two of the plurality of electrodes, and means for wirelessly communicating data from the sensor and a blood vessel monitoring system comprising same.

Abstract: An implantable sensor for implantation in a vessel, comprising a plurality of electrodes for placement on, in or adjacent a vessel wall, means for providing a drive signal to the electrodes, means for measuring at least one of impedance and capacitance between at least two of the plurality of electrodes, and means for wirelessly communicating data from the sensor and a blood vessel monitoring system comprising same.

Abstract: Wireless, variable inductance and resonant circuit-based vascular monitoring devices, systems, methodologies, and techniques, including specifically configured anchoring structures for same, are disclosed that can be used to assist healthcare professionals in predicting, preventing, and diagnosing various heart-related and other health conditions.

Abstract: Systems and methods are disclosed that provide for regular, periodic or continuous monitoring of fluid volume based on direct measurement of an inferior vena cava (IVC) physical dimension using a wireless measurement sensor implanted in the IVC. By basing diagnostic decisions and treatments on changes in an IVC physical dimension, information on patient fluid state is available across the entire euvolemic range of fluid states, thus providing earlier warning of hypervolemia or hypovolemia and enabling the modulation of patient treatments to permit more stable long-term fluid management.

Abstract: Systems and methods for control and signal processing in variable inductance, resonant circuit monitoring devices are disclosed, including improved techniques for energizing the sensor resonant circuit using excitation signal frequency sweeps, techniques for validating sensor readings and characterizing sensor frequency outputs to measured physical parameters and improved techniques for isolating background electromagnetic noise and distinguishing knows from sensor measurement signals.

Abstract: A system is provided for deployment of a sensor in a blood vessel comprising: an expandable sensor; at least one anchor element attached to the sensor; an expandable element configured within the sensor such that, in use, expansion of the expandable element causes the sensor to radially expand to fix the at least one anchor element in a wall of the blood vessel.

Abstract: Wireless, variable inductance and resonant circuit-based vascular monitoring devices, systems, methodologies, and techniques, including specifically configured anchoring structures for same, are disclosed that can be used to assist healthcare professionals in predicting, preventing, and diagnosing various heart-related and other health conditions.

Abstract: Systems and methods are described relating to fluid volume sensing in the inferior vena cava (IVC) to obtain data from which information on fluid status, congestion and cardiac output may be derived.

Abstract: Wireless, variable inductance and resonant circuit-based vascular monitoring devices, systems, methodologies, and techniques, including specifically configured anchoring structures for same, are disclosed that can be used to assist healthcare professionals in predicting, preventing, and diagnosing various heart-related and other health conditions.

Abstract: Systems are provided for determining the pulse wave velocity of blood flowing within a blood vessel. Disclosed systems may include first and second sensors at spaced apart locations in the blood vessel. The first sensor, in a first position, x1, in the vessel, r is configured to obtain a first area measurement, m1, of the vessel. The second sensor, in a second position, x2, in the vessel, is configured to obtain a second area measurement, m2, of the vessel. Disclosed systems may also include a processor configured to determine the pulse wave velocity of the vessel based on the first and second area measurements.

Abstract: Systems and methods are disclosed that provide for regular, periodic or continuous monitoring of fluid volume based on direct measurement of an inferior vena cava (IVC) physical dimension using a wireless measurement sensor implanted in the IVC. By basing diagnostic decisions and treatments on changes in an IVC physical dimension, information on patient fluid state is available across the entire euvolemic range of fluid states, thus providing earlier warning of hypervolemia or hypovolemia and enabling the modulation of patient treatments to permit more stable long-term fluid management.

Abstract: Wireless, variable inductance and resonant circuit-based vascular monitoring devices, systems, methodologies, and techniques, including specifically configured anchoring structures for same, are disclosed that can be used to assist healthcare professionals in predicting, preventing, and diagnosing various heart-related and other health conditions.

Abstract: Wireless, variable inductance and resonant circuit-based vascular monitoring devices, systems, methodologies, and techniques, including specifically configured anchoring structures for same, are disclosed that can be used to assist healthcare professionals in predicting, preventing, and diagnosing various heart-related and other health conditions.

Abstract: Wireless, variable inductance and resonant circuit-based vascular monitoring devices, systems, methodologies, and techniques, including specifically configured anchoring structures for same, are disclosed that can be used to assist healthcare professionals in predicting, preventing, and diagnosing various heart-related and other health conditions.

Abstract: Patient fluid management systems, particularly for use in treating patients at various stages of heart failure, are disclosed. Disclosed systems employ vascular dimension monitoring sensors to provide accurate, early, real-time estimation of circulating blood volume as an input metric to the system control, allowing for more accurate modulation of treatment based on the patient's current fluid volume state.

Abstract: Wireless, variable inductance and resonant circuit-based vascular monitoring devices, systems, methodologies, and techniques, including specifically configured anchoring structures for same, are disclosed that can be used to assist healthcare professionals in predicting, preventing, and diagnosing various heart-related and other health conditions.

Abstract: Wireless, variable inductance and resonant circuit-based vascular monitoring devices, systems, methodologies, and techniques, including specifically configured anchoring structures for same, are disclosed that can be used to assist healthcare professionals in predicting, preventing, and diagnosing various heart-related and other health conditions.

Abstract: Wireless, variable inductance and resonant circuit-based vascular monitoring devices, systems, methodologies, and techniques are disclosed that can be used to assist healthcare professionals in predicting, preventing, and diagnosing various heart-related and other health conditions.

Abstract: An implantable sensor for implantation in a vessel, comprising a plurality of electrodes for placement on, in or adjacent a vessel wall, means for providing a drive signal to the electrodes, means for measuring at least one of impedance and capacitance between at least two of the plurality of electrodes, and means for wirelessly communicating data from the sensor and a blood vessel monitoring system comprising same.

Abstract: Systems and methods are disclosed that provide for regular, periodic or continuous monitoring of fluid volume based on direct measurement of an inferior vena cava (IVC) physical dimension using a wireless measurement sensor implanted in the IVC. By basing diagnostic decisions and treatments on changes in an IVC physical dimension, information on patient fluid state is available across the entire euvolemic range of fluid states, thus providing earlier warning of hypervolemia or hypovolemia and enabling the modulation of patient treatments to permit more stable long-term fluid management.