Abstract: There is provided herein, a method for adjusting a VAD device parameters using a wearable device placed on the patient's hand, the method includes the steps of acquiring a set of signals from sensors in the wearable device, computing at least one quality metric, and adjusting at least one VAD operational parameter so as to optimize at least the one quality metric.

Abstract: Disclosed herein is a switch system for rechargeable power storage devices (PSDs). The switch system includes a controller and a first and second switching modules. The first switching module is serially-connected to a PSD. The second switching module is connected in parallel to the PSD and the first switching module. Each switching module is switchable by the controller between: a state S1, wherein current cannot flow (through the switching module) in a first direction; a state S2, wherein current flow cannot flow opposite to the first direction; a state S3, wherein current may flow in both directions; and a state S0, wherein current cannot flow in any direction. The switch system is configured to preclude joint states (S1, S2), (S1, S3), (S3, S2), (S3, S3), with the first and second entries denoting states of the first and second switching modules, respectively, thereby preventing possibility of short-circuit.

Abstract: Disclosed herein is a system a including a controller, a switching assembly commanded by the controller, and a DC-DC charger associated via the switching assembly with an array of power storage devices (PSDs). The system is controllably connectable to a power source, and, to rechargeable loads. The switching assembly is configured to individually enable and circumvent PSDs in the array. The controller is communicatively associated with a computational module configured to receive charging requirements of a rechargeable load, and, based thereon, select whether to charge the load exclusively via PSDs in the array, exclusively via the power source, or jointly thereby, so as to substantially minimize power consumption, charging time, and/or electricity cost, and/or achieve a desired trade-off there between. The controller is configured to receive the selection from the computational module, and, if required, command the switching assembly to enable charging of the load by the selected PSDs.

Abstract: Disclosed herein is a switch assembly electrically couplable to a rechargeable power storage device (PSD). The switch assembly includes an electrical input A, an electrical output B, and first and second conduction paths there between, passing through, and circumventing, the PSD, respectively. A positive polarity of the PSD points from A to B. The switch assembly is switchable between: (i) a state, wherein current is capable of flowing from A to B simultaneously through the first and second conduction paths but is incapable of flowing from B to A the second conduction path, (ii) a state, wherein current is capable of flowing between A and B through the second conduction path but current flow through the first conduction path is blocked, and (iii) a state, wherein current is capable of flowing between A and B through the first conduction path but current flow through the second conduction path is blocked.

Abstract: Systems and methods for monitoring of physiological signals together with subject awareness information, including measuring and analyzing blood pressure and contextual blood pressure analysis of subjects. Systems and methods of non-invasive (optionally continuous or waveform) blood pressure measurement of subjects with sensor-derived data such as subject's activity, posture, location, place, time, etc.

Abstract: A novel and useful pressure sensor array incorporating sensor elements constructed from electrically conductive film as a substrate. Examples of commercially available electrically conductive (i.e. piezoresistive) film include Velostat and Linqstat. A wearable device is described incorporating an array of pressure sensors with flexible properties and a biocompatible material interface between the sensor elements and a user's skin. The pressure sensor array uses the electrically conductive film as a substrate and places a pair of conductors in a suitable configuration to form individual sensor elements. The sensor elements detect the change in resistance of the electrically conductive film when pressure is applied thereto. The sensor elements may be implemented in an interdigitated or opposing configuration. The sensor array also comprises a mechanical interface on top of the sensor elements for transferring or focusing the applied pressure to the electrically conductive film.

Abstract: A system and method for blood pressure signal acquisition using a pressure sensor array. A solution is provided for a non-inflatable, non-invasive, continuous blood pressure waveform and blood pressure acquisition system. The system is operative to combine signals from various sensing elements where the less accurate sensor elements are calibrated utilizing the more accurate sensor elements. Blood pressure measurements are acquired using very sensitive pressure sensors that detect slight pressure changes through the skin, which are sampled and processed to yield a blood pressure signal, which is processed to yield actual systolic and diastolic continuous and or intermittent blood pressure readings. By sampling and detecting the signal in each of the sensors, the sensor that is best placed on the target artery is found and the signals from that sensor is used to weight the signals from other sensors based on signal quality.

Abstract: There is provided herein, a method for adjusting a VAD device parameters using a wearable device placed on the patient's hand, the method includes the steps of acquiring a set of signals from sensors in the wearable device, computing at least one quality metric, and adjusting at least one VAD operational parameter so as to optimize at least the one quality metric.

Abstract: Systems and methods for monitoring of physiological signals together with subject awareness information, including measuring and analyzing blood pressure and contextual blood pressure analysis of subjects. Systems and methods of non-invasive (optionally continuous or waveform) blood pressure measurement of subjects with sensor-derived data such as subject's activity, posture, location, place, time, etc.

Abstract: A system and method for blood pressure signal acquisition using a pressure sensor array. A solution is provided for a non-inflatable, non-invasive, continuous blood pressure waveform and blood pressure acquisition system. The system is operative to combine signals from various sensing elements where the less accurate sensor elements are calibrated utilizing the more accurate sensor elements. Blood pressure measurements are acquired using very sensitive pressure sensors that detect slight pressure changes through the skin, which are sampled and processed to yield a blood pressure signal, which is processed to yield actual systolic and diastolic continuous and or intermittent blood pressure readings. By sampling and detecting the signal in each of the sensors, the sensor that is best placed on the target artery is found and the signals from that sensor is used to weight the signals from other sensors based on signal quality.

Abstract: A novel and useful system and method for generating user feedback related to the quality of the placement and contact of a blood pressure sensor on a user's body. The sensor is incorporated in a wearable blood pressure measurement device that is capable of analyzing and providing feedback regarding the quality of placement and contact of the pressure sensor array. The wearable includes a pressure sensor array for monitoring blood pressure, means for attaching the pressure sensor to a user's body for measuring a region, a processor operative to record pressure signals from said sensor array and to calculate quality of pressure sensor contact to measurement area score, and a display operative to determine and display the quality of the placement and contact of the pressure sensor. A quality metric indicating the quality of the placement and contact of the pressure sensor is provided as feedback to the user.

Abstract: A novel and useful pressure sensor array incorporating sensor elements constructed from electrically conductive film as a substrate. Examples of commercially available electrically conductive (i.e. piezoresistive) film include Velostat and Linqstat. A wearable device is described incorporating an array of pressure sensors with flexible properties and a biocompatible material interface between the sensor elements and a user's skin. The pressure sensor array uses the electrically conductive film as a substrate and places a pair of conductors in a suitable configuration to form individual sensor elements. The sensor elements detect the change in resistance of the electrically conductive film when pressure is applied thereto. The sensor elements may be implemented in an interdigitated or opposing configuration. The sensor array also comprises a mechanical interface on top of the sensor elements for transferring or focusing the applied pressure to the electrically conductive film.

Abstract: A system and method for blood pressure signal acquisition using a pressure sensor array. A solution is provided for a non-inflatable, non-invasive, continuous blood pressure waveform and blood pressure acquisition system. The system is operative to combine signals from various sensing elements where the less accurate sensor elements are calibrated utilizing the more accurate sensor elements. Blood pressure measurements are acquired using very sensitive pressure sensors that detect slight pressure changes through the skin, which are sampled and processed to yield a blood pressure signal, which is processed to yield actual systolic and diastolic continuous and or intermittent blood pressure readings. By sampling and detecting the signal in each of the sensors, the sensor that is best placed on the target artery is found and the signals from that sensor is used to weight the signals from other sensors based on signal quality.