Abstract: Cuffless apparatus comprised of a pressure applicator operated at the wrist or other pulse-taking location and a processing unit implementing a method of measurement of arterial blood pressure and detection of auscultatory gap. Applanation pressure is applied by user's fingers in a pulsatile fashion as per real-time instructions of the processing unit. Pressure magnitude and sound field parameters captured by sensors are used to estimate systolic and diastolic blood pressure by analysis of Korotkoff sounds. User instructions are adjusted during measurement to facilitate self-validation by correlating results of two machine learning approaches: recognition of correlation of derivatives of the pressure and sound amplitude as functions of time, and image recognition of Korotkoff events in sound spectrograms overlayed with pressure traces. The auscultatory gap is detected when sound intensity is reduced by at least forty percent for one or more pulse waves.

Abstract: The invention relates to an implantable pressure sensor for measuring pressure, comprising a hermetic capsule (3) with a partially flexible portion; an electronic circuit (4) housed in the capsule (3) generating a transduction pressure signal dependent on the absolute pressure outside the capsule (3); an electrode pair (5, 5?) connected to the electronic circuit (4). The electronic circuit (4) comprises: a digital control unit (29); an interrogation stage (25) receiving an interrogation signal transmitted by volume conduction to the electrode pair (5, 5?), to generate a transduction pressure signal and to transmit it to a medium (15); and a power transferring stage (9) receiving part of the interrogation signal power and transferring power to the digital control unit (29) and to the interrogation stage (25). The invention further comprises a system comprising one or more pressure sensors and a reading unit; and the method for interrogating and powering said system.

Abstract: Systems and methods for pressure differential measurement and hemodynamic response assessment in vascular lumens are disclosed. Systems include catheter-based devices with variable flow restriction to create a controlled variable pressure differential (?P) within the coronary sinus. Methods are disclosed that allow a range of pressure changes to be mapped to a range of flow restriction diameters on a patient-specific basis as well as mapped to clinically measurable indicators of restriction/pressure change effect on hemodynamic and cardiac response.

Abstract: An arrhythmic state detection assisting device includes an acquisition unit, a derivation unit and an estimation unit. The acquisition unit acquires image information obtained by capturing an image of a predetermined part of a subject with an image capture device that captures a color moving image. The derivation unit derives a variance value, for a predetermined interval, of periods of a periodic change in a green luminance component in the image information acquired by the acquisition unit. As the variance value derived by the derivation unit becomes greater, the estimation unit estimates a higher likelihood that an arrhythmia is occurring in the subject.

Abstract: The present invention relates to a device (200), system (500) and method for determining a vital sign (150) of a subject (1) by using high dynamic range techniques to overcome the problems arising from a non-homogenous illumination of the subject (1). A camera (100) is preferably alternately switched between a mode of a high exposure time and a low exposure time to continuously record electromagnetic radiation (10) transmitted through or reflected from a skin area (4, 6) including one or more skin pixels of the subject (1). A plurality of detection signals (110), each representing a time signal derived from the electromagnetic radiation (10) are then further processed by various method steps, such as selecting high-quality skin-pixels from the different exposure states for signal extraction, interpolating and combining different exposure signals for vital signs extraction to increase the number of skin pixels for a more accurate vital sign extraction.

Abstract: Method and system for determining one or more heart beat features using remote photoplethysmography (rPPG). The method, comprising capturing a series of images of a user in a car by a camera in the car, wherein each image comprises one or more colour signals; for each of the images: locating a face of the user in the image; determining a boundary in the image, wherein the face is located within the boundary; detecting one or more facial features within the boundary; and based on the detected facial features, determining one or more regions in the image representing skin patches in the face; analysing the colour signals in the regions representing the skin patches; and determining one or more heart beat features based on the analysis.

Abstract: A wrist-worn electronic device comprises a housing including a bottom wall configured to contact a user's wrist, an optical transmitter and receiver assembly and a processor. The optical transmitter and receiver assembly comprises a first optical transmitter array, a first optical receiver, a second optical transmitter array, and a second optical receiver. The first and second optical transmitter arrays transmit a plurality of first and second optical signals, respectively, that pass through a user's skin. The first and second optical receivers receive the first and second optical signals that travel along a first signal path and a second signal path, respectively, that are both substantially parallel to an arm axis of the user. The processor is configured determine physiological information about the user based on one or both of first and second electronic signals corresponding to the first and second optical signals.

Abstract: The system and method for characterizing a tissue of interest may include navigating a needle device in proximity to the tissue of interest. The needle device can comprise a member including a plurality of electroconductive segments. The plurality of electroconductive segments can be electrically insulated from one another. The device can also include a first conductive path electrically coupled to a first electroconductive segment. A second conductive path can be coupled to a second electroconductive segment. The method can include contacting the tissue of interest with the first electrode and determining a tissue impedance of the tissue of interest from an electrical signal from the first electrode. The method can also include characterizing the tissue of interest as malignant or benign based on the tissue impedance.

Abstract: A skin resistance measurement device includes a pair of electrode portions provided on an epidermis and a measurement portion configured to measure skin resistance between the pair of electrode portions. The pair of electrode portions has a structure in which drying of the epidermis is naturally performed.

Abstract: The present disclosure provides apparatuses and computer readable media for measuring sub-epidermal moisture in patients to determine damaged tissue for clinical intervention. The present disclosure also provides methods for determining damaged tissue.

Abstract: A method for generating an image of a subject with a magnetic resonance imaging (MRI) system is presented. The method includes first performing a localizer scan of the subject to acquire localizer scan data. A machine learning (ML) module is then used to detect the presence of metal regions in the localizer scan data based on magnitude and phase information of the localizer scan data. Based on the detected metal regions in the localizer scan data, the MRI workflow is adjusted for diagnostic scan of the subject. The image of the subject is then generated using the adjusted workflow.

Abstract: A system for optimizing DBS parameters for a subject includes automatically performing actions via a processor. The actions include obtaining functional MRI data of a brain of the subject acquired utilizing an MRI system during DBS of the brain utilizing a first set of DBS parameters. The actions include generating functional MRI response maps from the functional MRI data. The actions include extracting, utilizing an unsupervised autoencoder-based neural network, features from the functional MRI response maps. The actions include determining, utilizing a deep learning-based DBS parameter classification model, whether the first set of DBS parameters are optimal DBS parameters for the subject based on the features. The actions include, when the first set of DBS parameters are not the optimal DBS parameters, predicting, utilizing a deep learning-based DBS parameter prediction model, a second set of DBS parameters that are the optimal DBS parameters for the subject based on the features.

Abstract: A technology is provided for stably synthesizing a blood vessel image while suppressing a decrease in brightness of a blood vessel in a case of synthesizing the blood vessel image. Optimization of an imaging parameter set for quantitative value map calculation is performed by adding at least one condition in which there is no decrease in brightness of a blood vessel in a region where no blood vessel is depicted in either an original image or a quantitative value image.

Abstract: A medical image processing apparatus according to the present embodiment includes processing circuitry. The processing circuitry inputs a first magnetic resonance image reconstructed with super-resolution processing on magnetic resonance data and a second magnetic resonance image obtained by imaging the same object as that of the first magnetic resonance image and with artifacts suppressed compared with the first magnetic resonance image, to a leaned model, the learned model being configured to output a third magnetic resonance image having the same resolution as that of the first magnetic resonance image and with the artifacts suppressed, generates the third magnetic resonance image based on the first magnetic resonance image and the second magnetic resonance image, using the learned model.

Abstract: The technology relates to a method for detecting high-risk unstable atherosclerotic plaque in a subject, the method comprising: a) administering to the subject a magnetic resonance imaging (MRI) contrast agent capable of being activated by myeloperoxidase (MPO) in atherosclerotic plaque; b) allowing the contrast agent to be activated by myeloperoxidase in atherosclerotic plaque; c) obtaining an image of the atherosclerotic plaque from the subject using such molecular MRI, wherein enhanced imaging is indicative of unstable plaque. In some embodiments an MPO inhibitor is administered to a subject identified as having a high-risk unstable atherosclerotic plaque.

Abstract: A processing device includes: a processor configured to acquire a distance from a reference position on a movement path of an endoscope to a distal end of the endoscope that is moved along the movement path, acquire an elapsed time from a start of an examination using the endoscope, acquire event information that is information on an event related to the examination in a case where the event has occurred, and perform control to store the distance, the elapsed time, and the event information in association with each other.

Abstract: Methods, systems, devices, assemblies and apparatuses for renal denervation. The system includes a guide catheter. The guide catheter has a lumen and a guide catheter energy delivery element. The distal portion of the guide catheter is configured to be intravascularly positioned within a main vessel. The system include an inner catheter. The inner catheter is positioned within the lumen of the guide catheter and has multiple energy delivery elements. The multiple energy delivery elements include a first energy delivery element and a second energy delivery element. The system includes a controller. The controller is coupled to the renal denervation device. The controller is configured to measure a first impedance between the first energy delivery element and the guide catheter energy delivery element. The controller is configured to provide a location of the inner catheter within the renal blood vessel based on the first impedance.

Abstract: A circuitry and a detection method using the circuitry. The circuitry includes circuits and electrochemical sensors connected to the circuits; the circuits include a reference voltage circuit, a potentiostatic circuit, and a micro-signal measuring circuit; on-off switches are provided on corresponding circuits. A test device and a detection method which use the circuitry can effectively reduce signal noise, reduce fluctuation of detection signals during a detection process, and improve the precision and accuracy of sample detection results.

Abstract: The present disclosure generally relates to systems and methods for detecting and/or monitoring respiratory events (e.g., apnea and hypopneas) experienced by a subject during sleep and/or for generating a sleep quality metric for an individual, using one or more implanted or external sensors, as well as methods of treating medical conditions related thereto, such as obstructive sleep apnea.

Abstract: A diagnostic tool and methods of using the tool are provided to quantify an amount of nasal collapse in a patient. The diagnostic tool includes a mask with an endoscope port and an opening to allow air flow, an endoscope with a camera adapted to take an image of the nasal valve, and an air flow sensor adapted to measure an inhalation rate of the patient. The diagnostic tool can quantify a size difference between the nasal valve during inhalation and zero flow by calculating a percentage difference in an area or one or more dimensions of the nasal valve during inhalation and zero flow.

Abstract: A system for identifying a size doubling number of a lesion, having: a ruler with a planar surface defining a data portion that includes data zones, including: a first zone defining first zone arcs distributed in a concentric configuration, the first zone arcs defining first mutually unique radii, ranging from a first minimum radius to a first maximum radius; the first zone includes first zone size markers, positioned adjacent ones of the first zone arcs, and the first zone size markers identify the size doubling number of the clinical lesion having a size corresponding to a respective one of the first zone arcs, the size doubling number representing one or more of volume, area and radius doubling of the lesion; a slider sliding along the ruler, a caliper that moves with the slider, and a smart device receiving data, from the caliper, indicative of a size of the clinical lesion.

Abstract: A pressure sensing brace includes a strap having two sides, one side configured to be positioned over and removably fastened to a body surface over a preselected body muscle. The brace further includes a pressure sensor integrated with the strap and configured to detect changes in pressure applied to said one side of said strap in response to a change in the status of said preselected body muscle from a relaxed state to a flexed state, and vice versa. The pressure sensing brace can include a haptic feedback module, visual indicators, motion sensors, and other forms of indicators that will provide a means when the strap experiences a certain level of pressure. The brace can provide feedback allowing a user to monitor the state of a body part involved in a certain activity so the user can adjust their effort level based upon the tension in the body part.

Abstract: A care system monitoring method for sensing the movement state of a bedridden person is provided. The care system monitoring method includes the following stages. Initial-state information is sensed. A first warning signal is issued to remind the caregiver to perform a movement action on the bedridden person when the time that the bedridden person has been in the initial state exceeds the threshold period. First-state information (which is information that is collected when the bedridden person is in the first state) is sensed after completing the movement action. It is determined whether the bedridden person was moved correctly according to the initial-state information and the first-state information. The first-state information is reset as the initial-state information if it is determined that the bedridden person has been moved correctly. A second warning signal is issued if it is determined that the bedridden person has been moved incorrectly.

Abstract: Provided is a waist swinging estimation device including a communication unit that acquires feature amount data including a feature amount extracted from a gait waveform of a spatial acceleration and a spatial angular velocity included in sensor data regarding a movement of a foot of a subject and used for estimation of waist swinging that is an index regarding a movement of a waist, a storage unit that stores an estimation model that outputs an estimated value regarding the waist swinging according to an input of a feature amount included in the feature amount data, an estimation unit that inputs a feature amount included in the acquired feature amount data to the estimation model, and estimate waist swinging of the subject according to an estimated value regarding the waist swinging output from the estimation model, and an output unit that outputs information according to waist swinging of the subject.

Abstract: A feature-amount generation device that includes an extraction unit that generates a gait waveform for one gait cycle from time-series data of sensor data related to a motion of a foot, extracts a feature amount from the generated gait waveform, and extracts a gait phase cluster by integrating a plurality of temporally continuous gait phases from each of which a feature amount is extracted, and a generation unit that generates a feature amount of the gait phase cluster using a preset feature-amount constitutive expression, and generates feature-amount data in which the plurality of gait phases constituting the gait phase cluster and the feature amount of the gait phase cluster are associated with each other.

Abstract: A feature-amount generation device that includes an extraction unit that generates a gait waveform for one gait cycle from time-series data of sensor data related to a motion of a foot, extracts a feature amount from the generated gait waveform, and extracts a gait phase cluster by integrating a plurality of temporally continuous gait phases from each of which a feature amount is extracted, and a generation unit that generates a feature amount of the gait phase cluster using a preset feature-amount constitutive expression, and generates feature-amount data in which the plurality of gait phases constituting the gait phase cluster and the feature amount of the gait phase cluster are associated with each other.

Abstract: Provided is a harmonic index estimation device including a communication unit that acquires feature amount data including a feature amount used for estimation of a harmonic index related to smoothness of movement of a waist, the feature amount being extracted from a gait waveform of a spatial acceleration and a spatial angular velocity included in sensor data related to movement of a foot of a subject, a storage unit that stores an estimation model that outputs an estimation value related to the harmonic index, according to an input of the feature amount included in the feature amount data, an estimation unit that inputs the feature amount included in the feature amount data to the estimation model and estimate a harmonic index of the subject according to the estimation value output from the estimation model, and an output unit that outputs information associated to the harmonic index.

Abstract: A system for communicating through a human body includes a wearable device including an accelerometer configured to receive motion signals in response to motions of the human body and a first decoder configured to transform motion signals into electrical signals; a memory configured to store one or more instructions; and a processor communicated with the wearable device and configured to execute the instructions to: determine a pattern of the motions of the human body from the electrical signals; and compare the pattern of the motions of the human body with a predetermined pattern of motions of the human body to determine whether the pattern of the motions of the human body matches with the predetermined pattern of motions of human body.

Abstract: Various embodiments comprise systems, methods, architectures, mechanisms and apparatus providing a super-regenerative oscillator (SRO) integrated metamaterial (MTM) leaky wave antenna (LWA) architecture suitable for use in radio frequency (RF) detecting, ranging (e.g., RADAR), and sensing systems/applications, such as a noncontact multi-target vital sign detection system.

Abstract: According to the present disclosure, an applicator for a continuous blood glucose measurement device, the applicator being operated by attaching a body attachment unit to the body of a user, the body attachment unit including a sensor member which is inserted into the body of the user in order to measure the blood glucose, comprises: a main case; a plunger to which the body attachment unit is detachably coupled and which is installed in the main case to be movable from a first position to a second position so that the body attachment unit can be discharged to the outer direction of the main case; a needle which is detachably coupled to the body attachment unit so as to be inserted into the body of the user along with the sensor member; and a needle separating unit which separates the needle from the body of the user by moving the needle in the direction opposite to the discharge direction of the plunger, wherein the needle separating unit includes a locking unit which can be assembled with the plunger in the

Abstract: Disclosed herein is an analyte sensing biointerface that comprises a sensing electrode incorporated within a non-conductive matrix comprising a plurality of passageways extending through the matrix to the sensing electrode. Also disclosed herein are methods of manufacturing a sensing biointerface and methods of detecting an analyte within tissue of a host using an analyte sensing biointerface.

Abstract: The present invention provides a non-invasive flexible blood glucose detecting and sleep monitoring device for monitoring the sleep state and blood glucose state of the detected person. The non-invasive flexible blood glucose detecting and sleep monitoring device includes a detection module including: a substrate; a plurality of optical modules, each being an optical cover plates with a coating layer; retaining walls, being disposed on the substrate, and the retaining walls respectively establishing a first space and a second space with the substrate and the optical modules; a light emitting unit, being disposed in the first space; and the sensing unit, being disposed in the second space. The non-invasive flexible blood glucose detecting and sleep monitoring device further includes a flexible piezoelectric module for being placed on the detected person; and a detecting unit, being connected to the detection module and the flexible piezoelectric module.

Abstract: Disclosed are devices for determining an analyte concentration. The devices comprise a sensor configured to generate a signal associated with a concentration of an analyte and an electronics unit operatively connected to the sensor. The electronics unit may be engaged with a housing that may secure the device to a host's skin. In this regard, in one embodiment, the housing may be attached to an adhesive patch that is fastened to the skin of the host.

Abstract: An apparatus for estimating a concentration of a component includes a sensor including a plurality of light sources having different central wavelengths and at least one detector configured to detect light, and a processor configured to determine a first reflectance of skin using a first light source of the plurality of light sources, set an operating condition of the sensor based on the determined first reflectance, drive the plurality of light sources according to the operating condition, and estimate a concentration of an analyte component based on a plurality of light quantities detected from skin by the at least one detector.

Abstract: An apparatus for measuring a triglyceride level includes: a sensor including: a plurality of peripheral light sources disposed at a periphery thereof, the plurality of peripheral light sources being configured to emit light toward an object, and a plurality of detectors each disposed at predetermined distances from the respective peripheral light sources of the plurality of peripheral light sources, the plurality of detectors being configured to detect optical signals reflected from or scattered by the object. The apparatus also includes a processor configured to selectively drive the plurality of peripheral light sources to obtain features based on the detected optical signals, and to measure the triglyceride level based on the obtained features.

Abstract: A test strip for sampling a bodily fluid may include multiple layers of a substrate material, an adhesive between at least some of the multiple layers, and a microfluidic channel formed between at least some of the multiple layers. The test strip may further include multiple electrodes on one of the multiple layers, positioned and partially exposed within the microfluidic channel, an additional material positioned at or near an entrance to the microfluidic channel, to selectively limit the flow of at least one of bubbles or debris into the microfluidic channel, and at least one exit port in at least one of the multiple layers to allow for release of pressure from the test strip. In some embodiments, the test strip is a saliva analysis test strip. In some embodiments, the test strip includes multiple exit ports to prevent blockage of sample flow.

Abstract: A method of and system for non-invasively measuring tissue hemoglobin of a subject is provided. The method includes: a) non-invasively sensing tissue of a subject using a near infrared spectrophotometric (NIRS) sensing device, and determining at least one NIRS tissue THb value based on the non-invasive sensing; b) determining whether at least one Hb confounding factor is present during the non-invasive tissue sensing with the NIRS sensing device; and c) determining a NIRS circulatory THb portion of the NIRS tissue THb value based on the presence of the at least one Hb confounding factor during the non-invasive tissue sensing with the NIRS sensing device.

Abstract: A method of measuring a tissue element, a device of measuring a tissue element, and a wearable apparatus are provided. The method includes: determining a positioning feature; determining a measurement region according to the positioning feature, where the measurement region meets a reproducibility of a measurement condition; arranging the measurement probe at a position corresponding to the measurement region; and performing a tissue element measurement by using the measurement probe.

Abstract: The present application is applicable to the technical field of muscle oxygen saturation detection, and provides a muscle oxygen saturation detection method, and a muscle oxygen saturation recovery method and system. The muscle oxygen saturation detection method is applied to a muscle oxygen saturation detection device. The present application combines pulse electrical stimulation for relieving the muscle fatigue and improving the muscle activity function with muscle oxygen saturation detection, and automatically triggers the turning-on and turning-off of electrical stimulation with the muscle oxygen saturation detection data of a wearer to form a closed-loop muscle function detection and stimulation system with feedback.

Abstract: In an example embodiment, an optical vital signs monitor includes a light source, a spectral sensor, a processor, and a non-transitory computer readable medium that includes instructions executable by the processor to perform or control performance of operations. The operations include illuminating, via the light source, a body of a subject. The operations include receiving, via the spectral sensor, a resultant signal from the body of the subject. The operations include determining a skin tone of the subject from the received resultant signal.

Abstract: A medical device for detecting at least one analyte in a body fluid is disclosed.

Abstract: An oxygen sensor for sensing dissolved oxygen concentration in tissue includes an electrochemical sensor comprising first and second conductive threads having proximal sections connected to a potentiostat. The first thread forms a cathode, and the second thread forms an anode.

Abstract: A sensor system includes a reader side resonant circuit (10) and a sensor side resonant circuit (20). The reader side resonant circuit (10) is an LCR parallel resonant circuit and a gain circuit. The sensor side resonant circuit (20) is an LCR parallel resonant circuit and a loss circuit having, as a resistance portion, a sensor element whose resistance value changes according to an object to be sensed. The reader side resonant circuit (10) and the sensor side resonant circuit (20) are wirelessly connected to each other through magnetic field resonant coupling to constitute a gain-loss coupling circuit, and the reader side resonant circuit (10) and the sensor side resonant circuit (20) are formed such that the gain-loss coupling circuit has parity-time symmetry.

Abstract: A disposable fluid sampling device including a body fluid sampling means, optionally body fluid sampling means for auto-sampling; and optionally, analysis means using one or more droplet(s) of sampled fluid to analyze the fluid; and an interface for at least one sample tube or medical analysis tube, the at least one sample tube or medical analysis tube adapted to be filled with a sample of fluid for analysis in a point of care or medical lab, wherein the device includes an interface for and at least one vacuum tube or vacuum source, the vacuum tube or vacuum source adapted to provide suction necessary to fill the at least one sample tube with the fluid.

Abstract: A protective cover is attached to a measurement device. The measurement device is provided with an insertion aperture for insertion of a test strip onto which a liquid sample is spotted. The protective cover is attached to the measurement device so as to cover a region including surroundings of the insertion aperture. The protective cover is provided with an opening portion into which the test strip is insertable. The opening portion and the insertion aperture are relatively positioned such that, in a state in which the test strip is inserted through the opening portion and inserted into the insertion aperture, an upper face and lower face of the test strip both abut against the protective cover.

Abstract: A fluid control device includes an inlet configured to be placed directly or indirectly in fluid communication with a bodily fluid source and an outlet configured to be placed in fluid communication with a fluid collection device. The fluid control device has a first state in which a negative pressure differential produced from an external source such as the fluid collection device is applied to the fluid control device to draw an initial volume of bodily fluid from the bodily fluid source, through the inlet, and into a sequestration portion of the fluid control device. The fluid control device has a second state in which (1) the sequestration portion sequesters the initial volume, and (2) the negative pressure differential draws a subsequent volume of bodily fluid, being substantially free of contaminants, from the bodily fluid source, through the fluid control device, and into the fluid collection device.

Abstract: A diagnosis image reading control apparatus includes: a display controller configured to perform control to display multiple images on a display; a detector configured to detect a line of sight of a user on the display; a region determination unit configured to determine where the line of sight of the user is positioned in multiple regions divided in each of the images; and a luminance adjustment unit configured to adjust luminance of the images, wherein the luminance adjustment unit is further configured to adjust to increase luminance of the region designated by the line of sight of the user in the images.

Abstract: A catheter includes a shaft including a proximal end and a distal end, an electrical conductor coupled to the catheter, and an electrode coupled to the electrical conductor. The electrode includes at least one recessed portion, and an impedance reduction layer disposed in the at least one recessed portion. The impedance reduction layer has a thickness less than a depth of the recessed portion.

Abstract: Techniques for using multiple physiological parameters to provide an early warning for worsening heart failure are described. A medical device monitors a primary diagnostic parameter that is indicative of worsening heart failure, such as intrathoracic impedance or pressure, and one or more secondary diagnostic parameters. The medical device detects worsening heart failure in the patient based on the primary diagnostic parameter when an index that is changed over time based on the primary diagnostic parameter value is outside a range of values, termed the threshold zone. When the index is within the threshold zone, the medical device detects worsening heart failure in the patient based on the one or more secondary diagnostic parameters. Upon detecting worsening heart failure, the medical device may, for example, provide an alert that enables the patient to seek medical attention before experiencing a heart failure event.

Abstract: Provided is a biopotential electrode body having high mechanical strength and suitable for acquiring more bioinformation. The biopotential electrode body includes multiple electrically conductive portions each having a contact surface contactable with a biological body, and one or more electrically insulating portions that electrically insulate the multiple electrically conductive portions from each other. The electrically conductive portions each include a first elastic resin and a plurality of first particles buried in the first elastic resin. The electrically insulating portions each include a second elastic resin and a plurality of second particles buried in the second elastic resin.