Abstract: Examples of implantable medical leads or implantable medical systems with implantable medical leads to be anchored to a sacrum are disclosed. The implantable medical leads include a lead body having a distal portion. A fixation mechanism is coupled to the distal portion. An electrode array is mechanically coupled to the fixation mechanism. In one example, the electrode array is directly coupled to the fixation mechanism. The electrode array is electrically coupled to the lead body and configured to generate a stimulation field. The fixation mechanism is configured to anchor the implantable medical lead to a sacrum and effect the stimulation field in a foramen of the sacrum.

Abstract: A system for objectively screening depression is provided. The system includes an ECG signal acquisition device configured to acquire ECG signals of a subject when the subject completes test processes, wherein the test processes include: normal breathing in a first posture, deep breathing in the first posture, normal breathing in a second posture, and deep breathing in the second posture, the first posture and the second posture incudes any of the following: lying posture, sitting posture, standing posture; an integration and calculation device configured to obtain the ECG signals, and integrate and calculate the ECG signals to obtain heart rate parameters and HRV characteristic parameters in the test processes; and a depression risk assessment device configured to input the heart rate parameters and the HRV characteristic parameters in each test process into a depression screening model to obtain a depression risk index of the subject.

Abstract: A biostimulator, such as a leadless cardiac pacemaker, including a fixation element and an electrode mounted on a resilient scaffold, is described. The fixation element and the resilient scaffold are coupled to a housing of the biostimulator. The resilient scaffold can support the electrode against a target tissue at a location that is radially offset from a location where the fixation element anchors the housing to the target tissue. A flexibility of the resilient scaffold allows the electrode to conform to a shape and movement of the target tissue when the housing is rigidly fixed to the target tissue by the fixation element. The resiliently supported electrode that is radially offset from the anchor point can reliably pace the target tissue without piercing the target tissue. Other embodiments are also described and claimed.

Abstract: Provided is an arm assembly for a surgical robot. The arm assembly for the surgical robot having a plurality of robot arms, includes a first pulley attached to one side of each robot arm, a second pulley attached to the other side of the robot arm to be spaced apart from the first pulley, and a first strap of which one end is connected to the first pulley and the other end is connected to the second pulley, wherein a position of one end of the first strap is fixed to the first pulley and a position of the other end of the first strap is adjustable on the second pulley.

Abstract: Devices and methods are disclosed for improved followability in laser-based ocular procedures. In some embodiments, an ophthalmic instrument comprises a projection located at the distal end of the shaft or cannula, the projection having a distal surface in proximity to the distal end of the optical fiber, the distal surface adapted to be positioned facing the treatment area during use of the ophthalmic instrument. An example method includes delivering laser energy through an optical fiber to the treatment area, wherein the distal surface of the projection inhibits bubbles formed during the procedure from moving distally away from the distal end of the ophthalmic instrument.

Abstract: In one embodiment, a defibrillation assembly energizable through magnet removal is provided. The defibrillation assembly includes an a magnetically triggered reed switch; an energy storage element that supplies power to the magnetically triggered reed switch; circuitry configured to generate a defibrillation waveform, wherein the circuitry is isolated from the energy storage element by the electromechanical component; a case within which at least a portion of the circuitry is located and comprising a printed circuit board (PCBA) enclosure within which a magnet is positioned that keeps the magnetically triggered reed switch in an open position, wherein an opening of the case that comprises removal of the magnet from the position causes the magnetically triggered reed switch to switch into a closed position and for the power to flow to the circuitry through the magnetically triggered reed switch.

Abstract: A defibrillation generator for an implantable defibrillation system comprises a housing, a connector block for connecting an electrode lead assembly to be non-transvenously implanted in a patient, and control device for controlling the operation of the defibrillation generator. The connector block has two connectors, to each of which an electrode lead of the electrode lead assembly, said electrode leads having at least one defibrillation electrode pole, is connectable, wherein the control device is configurable to assume a first operating state if an electrode lead is connected to just one of the two connectors, or a second operating state if electrode leads are connected to each of the two connectors.

Abstract: A method includes classifying, using a machine learning model, a portion of an electrocardiogram measurement as an artifact. The method further includes normalizing the electrocardiogram measurement except the portion of the electrocardiogram measurement classified as the artifact. The method further includes applying the machine learning model to the normalized electrocardiogram measurement to detect a cardiac event.

Abstract: An electrical-component add-on is provided for use with a prosthetic cardiac valve including a tubular frame. The electrical-component add-on includes a support and one or more electrical components. The support is (a) configured to assume delivery and deployed configurations, (b) configured to be positioned above, at, or below an annulus of a native cardiac valve of a heart, and (c) shaped as a ring when in the deployed configuration, so as to receive the tubular frame of the prosthetic cardiac valve within the support. The one or more electrical components are supported by the support, and include an antenna and one or more electrodes. Other embodiments are also described.

Abstract: An inline implantable connector device can provide an increased volume density to medical device systems in a limited volume. The inline implantable connector device can have a claim-shell design with a first half and a second half, each having a conductive path in a same design. The second half is turned and flipped by 180 degrees to mate with the first half so that the conductive paths interconnect to form electrical and mechanical interconnections that are fundamentally transverse to the direction of the incoming or outgoing lead wires. A first screw hole on a top side of the connector device can accept a screw therethrough; and a second screw hole on a bottom side of the connector device can accept another screw therethrough.

Abstract: An automated external defibrillator includes: an operation accepter that accepts an operation input from a user; and a self-test executor that executes a self-test for checking a state of the automated external defibrillator when a first condition or a second condition has been satisfied. The first condition is that a setting time instant set in advance comes. The second condition is that the operation accepter accepts a predetermined operation input.

Abstract: A balloon type retinal stimulation device includes: a substrate unit having an insertion portion provided to be inserted into an eyeball; and a stimulation unit that is provided at one or both of one and the other surfaces of the substrate unit. The insertion portion is provided to be expandable and contractible as a fluid is injected into and discharged from an inside of the injection portion. When the insertion portion expands, one surface of the insertion portion is deformed to match a shape of the retina such that the stimulation unit is brought into close contact with the retina on which an image is formed, and the other surface of the insertion portion comes into close contact with an inner surface of the eyeball that is not a region of retina on which an image is formed, to support the insertion portion that is in contact with the region of retina on which an image is formed.

Abstract: A method of applying tumor treating fields to a region of interest of a subject's body corresponding to a tumor, the method including: alternately applying to the region of interest a first electric field between a first pair of locations of the subject's body and a second electric field between a second pair of locations of the subject's body; detecting a change in the region of interest of the subject's body; ceasing applying the first and second electric fields; selecting, based on the detected change, a third pair of locations of the subject's body and a fourth pair of locations of the subject's body, the third and fourth pairs of locations being different than the first and second pairs of locations; and alternately applying to the region of interest a third electric field between the third pair of locations and a fourth electric field between the fourth pair of locations.

Abstract: A pacing device, a system comprising the pacing device and a method for operation of the pacing device, wherein the pacing device comprises a housing, a processor and a receiver electrically connected to the processor, wherein the processor is adapted to deliver signals for electric stimulation of a patient's heart according to at least one first stimulation mode and deliver signals for electric stimulation of the patient's heart according to an antitachycardiac pacing mode (ATP mode), wherein the ATP mode is initially deactivated and/or is to be upgraded, wherein the receiver is adapted to receive an ATP confirmation signal transmitted by an external device or produced by operation of an actuator accommodated at the housing of the pacing device, wherein the processor is adapted to upgrade the ATP mode and/or to activate the ATP mode only if the ATP confirmation signal comprises a pre-defined confirmation information.

Abstract: A completely de-energizable defibrillator is provided, allowing the electrical components of the defibrillator to be electrically unbiased while the defibrillator is not in use. Additionally, the microcontroller unit of the AED includes features to prevent computational errors due to external influences, electromagnetic interference, radio frequency interference, ionizing radiation, high energy particles, cosmic radiation, and/or solar radiation, or a combination thereof, including one or more pairs of lockstep processors, error detection code, and features that prevent tampering with the microcontroller.

Abstract: A Wearable Medical System (WMS) that implements a wearable cardioverter defibrillator (WCD), includes a microphone and related improvements. The microphone can be on the same dongle as the cancel switch of the WCD. A user trigger module may permit the patient to perform a deliberate act and, in response, the system may start recording audio from the ambient sounds, including their own voice, and/or start recording the ECG. The deliberate act may even be a voice command by the patient that is parsed by a voice recognition module. The WMS may continuously record audio and then continuously discard it, and further stop the discarding if it detects a recording trigger. The WMS may create an exportable computer file that has audio-related data, which can have playable sound data or transcribed voice data.

Abstract: An optical interface device having an opening for an optical path that can be non-circular and having engagement members having gradually varying angles of engagement. An embodiment of the interface device can be a one size fits all device, providing a configuration that fits in all typical eye openings, including narrow palpebral fissures and small eyes, while providing optical path access to features and structures of the eye. An embodiment of the interface device engages the limbus, cornea and sclera.

Abstract: A system and method are disclosed for causing or enhancing the perception of color in a blind or visually impaired person. The system may comprise: an electromagnetic stimulation device associated with the blind or visually impaired person; and a visualization device for receiving an image and detecting a color of an object in the image, wherein the electromagnetic stimulation device is configured to stimulate the blind or visually impaired person based on a parameter of electromagnetic stimulation that varies based on the color detected by the visualization device. The method may comprise: varying a parameter of electromagnetic stimulation of an electromagnetic stimulation device, associated with an eye of the blind or visually impaired person, based on which color is detected by a visualization device that is used in conjunction with the electromagnetic stimulation device; and stimulating the eye with the electromagnetic stimulation device according to the parameter of electromagnetic stimulation.

Abstract: In one embodiment, a method to alert a user of a wearable cardioverter defibrillator (WCD) is described. The method includes determining when a system issue is resolved and issuing an alert when the system issue is resolved. In some embodiments, the method may detect the system issue and issuing a system alert based at least in part on the system issue. The method may then monitor a status of the system issue. In some instances, the method may detect an abnormality in system operation sand determine a severity rating for the abnormality. The method may determine if the abnormality satisfies a time duration threshold based at least in part on the severity rating.

Abstract: A pocket size defibrillator case is described. The defibrillator case includes four walls forming a rectangular shape. A substantially flat surface is positioned perpendicularly to an interior surface of each of the four walls, generating an electrode enclosure with the substantially flat surface forming a bottom of the electrode enclosure and generating a circuit enclosure with the substantially flat surface forming a top of the circuit enclosure. The electrode enclosure includes a cavity to house electrode pads and the circuit enclosure includes a cavity to house an energy storage circuit. A cover is positioned over the cavity of the electrode enclosure and moveable to allow access only to the electrode enclosure. A bottom surface is positioned over the cavity of the circuit enclosure opposite the substantially flat surface.