Abstract: Apparatus and methods for generating pulse pacing in a wearable cardioverter defibrillator (“WCD”). In one aspect the WCD circuitry includes a power source such as a battery coupled to a charger that provides charge energy to an energy storage module. Control circuitry is operatively coupled to the charger and the output circuitry, and configured to cause the WCD circuitry to generate pacing pulses delivered to therapy electrodes (attached to an ambulatory patient) without a current source. The WCD circuitry includes one or more processing elements that are used to execute instructions provided by one or more software modules that are configured to support various functionality, including controlling generation of pacing pulses.

Abstract: A wearable cardioverter defibrillator system includes a support structure that a patient can wear. The system also includes electrodes that contact the patient, and define two or more channels from which ECG signals are sensed. A processor may evaluate the channels by analyzing their respective ECG signals, to determine which contains less noise than the other(s). The analysis can be by extracting statistics from the ECG signals, optionally after first processing them, and then by comparing these statistics. These statistics may include tall peak counts, amplitudes of peaks compared to historical peak amplitudes, signal baseline shift, dwell time near a baseline, narrow peak counts, zero crossings counts, determined heart rates, and so on. Once the less noisy signal is identified, its channel can be followed preferentially or to the exclusion of other channels, for continuing monitoring and/or determining whether to shock the patient.

Abstract: In embodiments, a Wearable Cardioverter Defibrillator (WCD) system includes a support structure for the patient to wear, and components that the support structure maintains on the patient's body. The components include a defibrillator, associated electrodes, and so on. The defibrillator can operate in a WCD mode while the patient wears the support structure. The defibrillator can further operate in a different, AED mode, during which time the patient need not wear a portion of the support structure, or even the entire support structure. Sometimes the AED mode is a type of a fully automatic AED mode. Other times the AED mode is a type of a semi-automated AED mode, where an attendant is present to administer the shock; at such times, the patient may not even need to have electrodes attached. This way the patient is more comfortable for a longer time.

Abstract: A wearable medical includes a walking detector module with a motion sensor that is configured to detect when the patient is walking or running. In embodiments, a parameter (referred to herein as a “Bouncy” parameter) is determined from Y-axis acceleration measurements. In some embodiments, the Bouncy parameter is a measurement of the AC component of the Y-axis accelerometer signal. This detection can be used by the medical device to determine how and/or whether to provide treatment to the patient wearing the medical device. For example, when used in a WCD, the walking detector can prevent “false alarms” because a walking patient is generally conscious and not in need of a shock.

Abstract: The present application relates to systems and methods for obtaining real-time abrasion data. An example computer-implemented method could include receiving, at a computing device, sensor data from one or more sensors. The one or more sensors are disposed in proximity to an abrasive product or a workpiece associated with the abrasive product. The one or more sensors are configured to collect abrasion operational data associated with an abrasive operation involving the abrasive product or the workpiece. The computer-implemented method could further include training, based on the sensor data, a machine learning system to determine product specific information of the abrasive product and/or workpiece specific information. The computer-implemented method could also include providing the trained machine learning system using the computing device.

Abstract: Various embodiments of a system for priming a catheter assembly are disclosed herein. For example, the system can include a catheter assembly including an elongate body and an operative device coupled thereto. The system can also include a priming vessel configured to receive insertion of the operative device therein. The priming vessel can include a proximal portion secured to the distal portion of the elongate body such that the elongate body is in fluid communication with the priming vessel. The priming vessel can also include a distal end through which air is expelled when a fluid is channeled through the elongate body and into the priming vessel to expel air from within the catheter assembly.

Abstract: A system for coupling a motor assembly to a control console is disclosed. The motor assembly is configured to drive a percutaneous heart pump. The system includes a motor coupling comprising a first end having an electrical connection and a fluid connection coupled to a respective electrical conduit and fluid conduit of the motor assembly, and a second end spaced apart from the first end including an interface coupling coupled to the electrical conduit and fluid conduit. An interface member is configured to be removably coupled to the control console, the interface member comprising a corresponding connector coupleable to the interface coupling of the second end of the motor coupling, wherein the interface member is configured to provide a sterile attachment of the fluid conduit to the control console.

Abstract: A motor system for a percutaneous heart pump includes a drive assembly that includes a motor and a housing having a proximal end and a distal end. The distal end of the housing is configured for coupling to a driven assembly. A first conduit is coupled to the proximal end of the drive assembly housing. The first conduit comprises an elongate tubular member including a communication interconnection line for transmitting communications from a remote console to the motor assembly. A second conduit is coupled to the proximal end of the drive assembly housing. The second conduit is configured for carrying a fluid between the remote console and the motor assembly.

Abstract: The present application relates to systems and methods for obtaining real-time abrasion data. An example computer-implemented method could include receiving, at a computing device, sensor data from one or more sensors. The one or more sensors are disposed in proximity to an abrasive product or a workpiece associated with the abrasive product. The one or more sensors are configured to collect abrasion operational data associated with an abrasive operation involving the abrasive product or the workpiece. The computer-implemented method could further include training, based on the sensor data, a machine learning system to determine product specific information of the abrasive product and/or workpiece specific information. The computer-implemented method could also include providing the trained machine learning system using the computing device.

Abstract: Various embodiments of a system for priming a catheter assembly are disclosed herein. For example, the system can include a catheter assembly including an elongate body and an operative device coupled thereto. The system can also include a priming vessel configured to receive insertion of the operative device therein. The priming vessel can include a proximal portion secured to the distal portion of the elongate body such that the elongate body is in fluid communication with the priming vessel. The priming vessel can also include a distal end through which air is expelled when a fluid is channeled through the elongate body and into the priming vessel to expel air from within the catheter assembly.

Abstract: The present application relates to systems and methods for obtaining real-time abrasion data. An example system includes a remote sensor that is located remotely from a grinding tool and a workpiece. The remote sensor is configured to detect vibration and/or noise associated with a grinding operation involving the grinding tool and the workpiece. The system includes communication interface and a controller configured to carry out operations. The operations include receiving, from the remote sensor, at least one of vibration or noise information associated with the grinding tool and the workpiece. The operations also include determining tool-specific information or workpiece-specific information based on the at least one of the vibration or noise information. The operations yet further include transmitting, via the communication interface, the tool-specific information or workpiece-specific information.

Abstract: Various embodiments of a fluid handling system are disclosed herein. For example, the fluid handling system can include a catheter assembly and a console configured to control the operation of the catheter assembly. A removable interface member can be configured to provide fluid and electrical communication between the catheter assembly and the console.

Abstract: A system for monitoring the health of a damping device is provided, the damping device having a tube assembly containing at least one fluid, the system including: a sensor assembly mounted on an outer surface of the tube assembly, the sensor assembly having a thermometer; a transmitter configured for transmitting data, including temperature values gathered by the thermometer; a receiver configured for receiving the data; and a processor, configured for performing an analysis of the data. The processor sends an alarm signal, when values from the data are outside pre-programmed values of an alarm threshold.

Abstract: An apparatus for adjusting a head strap in a head-mounted display (HMD) includes a rigid body, a flexible link, a spool, a torsion spring, a driving gear assembly a rigid shaft, a rod, and a holder. The driving gear assembly includes a first gear and a second gear. The torsion spring applies a biasing torque onto the driving gear assembly. Based on the biasing torque from the torsion spring, the driving gear assembly rotates. The spool rotates relative to the rigid body to wind the flexible link onto the spool. A biasing torque adjustment mechanism may be provided to adjust the biasing torque applied by the torsion spring.

Abstract: Various embodiments of a fluid handling system are disclosed herein. For example, the fluid handling system can include a catheter assembly and a console configured to control the operation of the catheter assembly. A removable interface member can be configured to provide fluid and electrical communication between the catheter assembly and the console.

Abstract: Various embodiments of a fluid handling system are disclosed herein. For example, the fluid handling system can include a catheter assembly and a console configured to control the operation of the catheter assembly. A removable interface member can be configured to provide fluid and electrical communication between the catheter assembly and the console.

Abstract: A fixed sequence activation handle is described that forces a predetermined activation sequence. Such handles are suitable for use in the delivery of medical devices or for other application that require a fixed sequence of activations.