Abstract: A medical system may include a patient system configured to determine a condition of a patient and deliver a neuromodulation therapy. The patient system may include a patient device having a user interface configured to enable patient interaction by the patient with the patient system. The patient system may include a triage system configured to select a triage tier from two or more triage tiers available for selection and indicative of a priority ranking for patient intervention. The triage system may be configured to use both the interaction and the condition to select the triage tier.

Abstract: This document discusses, among other things, systems and methods for managing pain of a subject. A system includes a first sensor circuit to sense a first signal indicative of a functional state of the subject, a second sensor circuit to sense a second signal different from the first signal, and a controller circuit. The controller circuit may determine an operating mode of the second sensor circuit according to the sensed first signal, trigger the second senor circuit to sense the second signal under the determined operating mode, and generate a pain score using at least the second signal sensed under the determined operating mode. The pain score may be output to a patient or used for closed-loop control of a pain therapy.

Abstract: This document discusses systems, devices, and methods for monitoring and managing patients with chronic pain. A patient monitoring system comprises a sensor circuit to sense a physiological or functional signal indicative of or correlated to patient mobility, an electrostimulator to generate and deliver neuromodulation therapy to the patient, and a controller circuit to generate a mobility metric using the sensed physiological or functional signal. The mobility metric represents respective times spent in different activity intensity levels associated with one or more types of activities during a specific time period. The controller circuit can trend the mobility metric over time and determine a progress toward a personalized mobility goal of the patient, and control the electrostimulator to initiate or adjust the neuromodulation therapy in accordance with the trended mobility metric or the determined progress toward the mobility goal.

Abstract: Apparatus and methods for extending functionality of memory controllers in a processor-based device are disclosed herein. In one aspect, a processor-based device provides a memory access intercept circuit that is communicatively coupled to a memory controller and a memory device. The memory access intercept circuit is configured to receive a memory write request that is directed to and received by the memory controller, and generates a write transaction identifier (ID) for the memory write request. The memory access intercept circuit then generates proxy write data containing the write transaction ID, and sends the proxy write data to the memory controller. The memory access intercept circuit subsequently intercepts the actual write data directed to the memory controller, and stores the write data in a write data buffer in association with the write transaction ID.

Abstract: The invention provides a model training method and system that uses pretrained features of a teacher neural network trained on a billion-size dataset to train a student neural network. The model training method leverages the teacher neural network to design a more stable loss function that works well with more sophisticated learning rate schedules to reduce training time and make the augmentation designing process more natural.

Abstract: Methods and systems directed to recovery of lithium (e.g., lithium salts) from liquid streams are provided. In some embodiments, methods relate to obtaining lithium (e.g., as a solid lithium salt) by removing at least a portion of liquid from a feed stream to form a concentrated stream with respect to solubilized lithium cations. Liquid removal may include transporting at least a portion of the feed stream to an osmotic unit and/or a humidifier. Some methods include removing impurities (e.g., non-lithium cations) from the concentrated stream (e.g., via precipitation and/or crystallization). In some embodiments, solutions containing solubilized lithium cations and anions are electrochemically-treated such that first solubilized anions are replaced with second, different anions. In some embodiments, solid lithium salt containing at least a portion of the lithium cations and the second anions is obtained (e.g.

Abstract: A stimulation system includes a device programmed with user-specified routines for operation of a pulse generator, where the user-specified routines are activatable in response to information received from a source external to the pulse generator, The device includes a memory, a communication unit, and at least one processor coupled to the memory and the communication unit and configured to perform actions, including receiving, using the communication unit, information provided from the source external to the pulse generator and external to the patient, when the information meets an activation criterion for a one of the user-specified routines, activating the user-specified routine to deliver or halt delivery of stimulation to the patient according to the user-specified routine, and upon completion of the user-specified routine or meeting a termination condition, halting the user-specified routine.

Abstract: This document discusses, among other things, systems and methods for managing pain of a subject. A system includes a first sensor circuit to sense a first signal indicative of a functional state of the subject, a second sensor circuit to sense a second signal different from the first signal, and a controller circuit. The controller circuit may determine an operating mode of the second sensor circuit according to the sensed first signal, trigger the second senor circuit to sense the second signal under the determined operating mode, and generate a pain score using at least the second signal sensed under the determined operating mode. The pain score may be output to a patient or used for closed-loop control of a pain therapy.

Abstract: This document discusses, among other things, systems and methods for managing pain of a subject. A system includes a first sensor circuit to sense a first signal indicative of a functional state of the subject, a second sensor circuit to sense a second signal different from the first signal, and a controller circuit. The controller circuit may determine an operating mode of the second sensor circuit according to the sensed first signal, trigger the second senor circuit to sense the second signal under the determined operating mode, and generate a pain score using at least the second signal sensed under the determined operating mode. The pain score may be output to a patient or used for closed-loop control of a pain therapy.

Abstract: An example of a neurostimulation system may include one or more sensing devices and a patient assistance device. The sensing device(s) may be configured to sense one or more signals from a patient and may include one or more non-invasive sensing devices. The patient assistance device may be configured to assist the patient in use of a stimulation device and may include a communication circuit configured to receive the sensed signal(s), a user interface configured to allow for interactions with the patient, and a processing circuit which may be configured to receive patient-specific information including the sensed signal(s), to analyze the patient-specific information with neurostimulation algorithm information representative of available therapeutic options, to produce one or more recommendations related to use of the stimulation device for treating the patient based on the analysis, and to present at least one recommendation using the user interface.

Abstract: This disclosure relates AC-to-DC rectification and power flow control of electrical power generators. An integrated rectifier-generator AC-DC conversion circuit and system are disclosed for providing a regulated DC output. The integrated rectifier-generator AC-DC conversion circuit and system may include serially stacked passive and active rectifiers connected to multiple AC ports of an electrical power generator driven by mechanical energy captured by an energy harvester. The integrated rectifier-generator AC-DC conversion circuit and system may be configured to perform active ripple control and a maximum power tracking from the energy harvester by controlling a fraction of an overall power that flow through the active rectifier.

Abstract: This document discusses, among other things, systems and methods for managing pain of a subject. A system includes a first sensor circuit to sense a first signal indicative of a functional state of the subject, a second sensor circuit to sense a second signal different from the first signal, and a controller circuit. The controller circuit may determine an operating mode of the second sensor circuit according to the sensed first signal, trigger the second senor circuit to sense the second signal under the determined operating mode, and generate a pain score using at least the second signal sensed under the determined operating mode. The pain score may be output to a patient or used for closed-loop control of a pain therapy.

Abstract: This document discusses, among other things, systems and methods for managing pain of a subject. A system includes a first sensor circuit to sense a first signal indicative of a functional state of the subject, a second sensor circuit to sense a second signal different from the first signal, and a controller circuit. The controller circuit may determine an operating mode of the second sensor circuit according to the sensed first signal, trigger the second sensor circuit to sense the second signal under the determined operating mode, and generate a pain score using at least the second signal sensed under the determined operating mode. The pain score may be output to a patient or used for closed-loop control of a pain therapy.

Abstract: A method for controlling scale and/or fouling on a separation membrane. The method comprises forming a thermally, physically, electrically or chemically degradable coating layer on the membrane; using the membrane under conditions that result in the formation of scale and/or fouling species on the membrane; and removing at least some of the scale and/or fouling species from the membrane by thermally, physically, electrically or chemically degrading the coating layer.

Abstract: This disclosure relates AC-to-DC rectification and power flow control of electrical power generators. An integrated rectifier-generator AC-DC conversion circuit and system are disclosed for providing a regulated DC output. The integrated rectifier-generator AC-DC conversion circuit and system may include serially stacked passive and active rectifiers connected to multiple AC ports of an electrical power generator driven by mechanical energy captured by an energy harvester. The integrated rectifier-generator AC-DC conversion circuit and system may be configured to perform active ripple control and a maximum power tracking from the energy harvester by controlling a fraction of an overall power that flow through the active rectifier.

Abstract: An example of a neurostimulation system may include one or more sensing devices and a patient assistance device. The sensing device(s) may be configured to sense one or more signals from a patient and may include one or more non-invasive sensing devices. The patient assistance device may be configured to assist the patient in use of a stimulation device and may include a communication circuit configured to receive the sensed signal(s), a user interface configured to allow for interactions with the patient, and a processing circuit which may be configured to receive patient-specific information including the sensed signal(s), to analyze the patient-specific information with neurostimulation algorithm information representative of available therapeutic options, to produce one or more recommendations related to use of the stimulation device for treating the patient based on the analysis, and to present at least one recommendation using the user interface.

Abstract: This document discusses, among other things, systems and methods for managing pain of a subject. A system includes a first sensor circuit to sense a first signal indicative of a functional state of the subject, a second sensor circuit to sense a second signal different from the first signal, and a controller circuit. The controller circuit may determine an operating mode of the second sensor circuit according to the sensed first signal, trigger the second sensor circuit to sense the second signal under the determined operating mode, and generate a pain score using at least the second signal sensed under the determined operating mode. The pain score may be output to a patient or used for closed-loop control of a pain therapy.

Abstract: A method for controlling scale and/or fouling on a separation membrane. The method comprises forming a thermally, physically, electrically or chemically degradable coating layer on the membrane; using the membrane under conditions that result in the formation of scale and/or fouling species on the membrane; and removing at least some of the scale and/or fouling species from the membrane by thermally, physically, electrically or chemically degrading the coating layer.

Abstract: A microfluidic system including a substrate in sheet form, at least one hydrophilic microfluidic channel supported on a surface of the substrate, and at least one functional component formed as part of the substrate for providing a functional component for the microfluidic channel wherein the functional component comprises at least one cut within the substrate for providing a switch or filter component for the microfluidic channel.