Abstract: Based on a comparison of electrograms recorded at different locations in a bodily cavity, position information originally recorded for the electrograms may be altered, and a graphical representation of a map of at least part of the bodily cavity may be displayed based at least on the altered position information. The graphical representation of the map that is displayed based at least on the altered position information may reduce map distortion compared to a state of the map prior to the altering of the position information.

Abstract: A system for early detection of movement instability includes a wearable device affixed to a body part of a subject, featuring at least one electromyography (EMG) sensor for detecting electrical muscle activity and at least one motion sensor for detecting movement. A computing device, communicatively connected to the wearable device, receives EMG data from the EMG sensor and motion data from the motion sensor. The computing device identifies movement instability patterns using a machine-learning model trained on datasets of known stable and unstable muscle activity data and movement patterns. It determines impairment indicators based on the identified movement instability patterns and generates a user interface displaying these indicators. This system facilitates early detection and monitoring of movement instability.

Abstract: A lymphatic system examination device includes a main body portion including a placement portion on which a subject stands, and configured to position a lower body of a subject in an imaging region, an illumination unit configured to irradiate the lower body with excitation light; and an imaging unit configured to detect fluorescence emitted from the lower body. The illumination unit and the imaging unit are arranged on one side in a first horizontal direction with respect to the imaging region. The main body portion further includes a restricting portion. The restricting portion is disposed along the upper end portion of the imaging region and restricts movement of the subject to one side in the first horizontal direction.

Abstract: A system for providing a method for the automated analysis of cardiotocographic data, in order to measure the risk of fetal hypoxia, of between 0% for absence of any risk and 100% for confirmed fetal hypoxia. The system according to the invention makes it possible, by means of the artificial intelligence model facilitated by the neural network and by means of the mathematical regression model, to determine the contributions of the various risk indicators capable of being subsequently interpreted by practitioners. The models for assessing the risk of fetal hypoxia, determined by means of a neural network, and the contributions of the various indicators used to determine the risk of fetal hypoxia, determined by logistic regression, are trained on a retrospective database.

Abstract: A device for standardized and repeatable imaging of a body surface, including a stack of imaging sensors that are each independently moved to a standard imaging distance from the body surface as the stack is rotated about a central axis of the body. Distance sensors are used to determine the required location of each imaging sensor, which is moved independently so that each imaging sensor is at the same distance from an irregular body surface, and the stack matches the shape of the body surface, even as the stack is rotated around the body. The distance between imaging sensors in the stack can be adjusted to match the height of the body. Methods of use are also disclosed.

Abstract: A method for monitoring a user’s circadian rhythm, the method comprising acquiring sensor data using one or more monitoring sensors, each configured to measure a secondary physiological parameter or biomarker associated with the user, and inputting the sensor data to a correlation model. The correlation model is configured to correlate the sensor data with a primary physiological parameter or biomarker known to be associated with the user’s circadian rhythm.

Abstract: Systems and methods for tourniquet monitoring and control is provided. A system includes at least one sensor, a housing, a processor, and a user communication module. The at least one sensor is configured to monitor at least one of deployment or operation of the tourniquet. The housing is configured to removably engage the tourniquet to position the at least one sensor to monitor the at least one of deployment or operation of the tourniquet. The processor is configured to receive feedback from the at least one sensor, compare the feedback to at least one of deployment or operation parameters for the tourniquet, and generate a user report. The user communication module is configured to communicate the user report.

Abstract: A modular sensing and actuating layered substrate for electronic catheters including two or more of one or more active modules having a first and a second connector segment, and at least one node including one or more transducers, and optionally one or more spacer modules having a first and a second connector segment, but no node nor sensor. The first connector segments are electrically connected to the second connector segment of the adjacent module. The modules, the connector segments, and the nodes are based on a flexible printed circuit board FPCB, and each connector segment includes multiple of electrically conductive contact pads. When the first connector segment is electrically connected to the second connector segments of another module, the contact pads of the first connector segment are in contact with the contact pads of the second connector segment. Also is a process to manufacture an electronic catheter having the substrate.

Abstract: The invention provides systems and methods for removing triboelectric noise from an electrical signal. The invention relies on the premise that triboelectric noise is present in similarly situated wires such that noise in one set of wires is indicative of noise in another set of wires. The systems comprise a detector connected to a set of noise wires for identifying one or more intervals of noise above a threshold level, and a subprocessor connected to the detector and a set of signal wires for removing the one or more intervals from signals from the signal wires to provide a cleaned signal.

Abstract: A time-phase detection method for an online signal, a time-phase detection unit, and a closed-loop regulation and control system are provided. The time-phase detection method includes: using a plurality of detectors to run a detection algorithm and detect an online signal in parallel, to output a time-phase detection result of the online signal; and determining a time phase of the online signal based on each time-phase detection result, where the time-phase detection result of the online signal includes an abnormal period and a normal period, the abnormal period includes at least one of a continuous abnormal period with a sudden amplitude change, a continuous abnormal period with a gradual amplitude change, and an instantaneous abnormal period, and the detection algorithm includes at least one of a classification algorithm based on a minimum window and an early-warning algorithm based on a zero-crossing coefficient.

Abstract: A method of preventing presyncope, syncope and falls in a subject for execution by a wearable device that includes one or more processors. The method comprises generating, by one or more biometric sensors of the wearable device, biometric data regarding the subject, wherein the wearable device is configured to attach to an ear of the subject, wherein the wearable device is sized to be less than 20 mm in the longest dimension and is configured to be positioned entirely outside an ear canal of the ear such that the ear canal remains unobstructed during operation, and wherein the one or more biometric sensors are optical sensors configured to target at least one branch of a posterior auricular artery of the subject to monitor at least one biometric parameter of the subject.

Abstract: A system and a method for rotation angle feedback, and a readable storage medium applied to a CT device are provided. The system includes a detection module and a processing module. The CT device has a gantry including a stator and a rotor, and the gantry is provided with the detection module and a plurality of indexing marks arranged along a circumference centered on a scanning center of the CT device. The detection module detects the indexing marks during rotation of the rotor to generate a pulse signal and transmits the pulse signal to the processing module. The processing module is configured to, in response to receiving the pulse signal corresponding to one of the indexing marks, determine a target rotation angle corresponding to an acquired image based on a present angular speed and a rotation duration from the one of the indexing marks.

Abstract: The method according to one or more example embodiments for conducting an imaging examination of a patient via a medical imaging system includes extracting speech sounds of the patient and system sounds of an imaging system from an audio input signal, modifying speech sounds and/or weighted system sounds; combining the possibly modified speech sounds and the possibly modified system sounds into an audio output signal via the computer unit; and providing, via a reproduction unit, to a user of the imaging system for monitoring the imaging examination the combined audio output signal while the imaging examination is being conducted.

Abstract: A method for detecting heart valve regurgitation, including: acquiring a sequence of B-mode ultrasound data to be processed, and a sequence of CF-mode ultrasound data corresponding to the B-mode ultrasound data; separately performing preprocessing targeting a target region on the sequences of the B-mode ultrasound data and the CF-mode ultrasound data; performing secondary processing on the preprocessed sequences of the B-mode ultrasound data and the CF-mode ultrasound data, to acquire a valve closure region; performing regurgitation feature analysis in the valve closure region, to determine a regurgitation frame range; and extracting target data from the sequence of the CF-mode ultrasound data on the basis of the regurgitation frame range, and generating a regurgitation region identifier.

Abstract: A system for sweep trajectory simulation, wherein the system includes at least a processor and a memory communicatively connected to the at least a processor, wherein the memory contains instructions configuring the at least a processor to receive a plurality of 3D imaging data, generate, using the plurality of 3D imaging data, ultrasound simulation data, wherein the ultrasound simulation data includes ultrasound data and probe position data, generate, using the ultrasound simulation data, a plurality of 3D models, and train, using reinforcement learning algorithms, a sweep trajectory simulation model. In an embodiment, the sweep trajectory simulation model is trained using 3D imaging data, the probe position data, and the plurality of 3D models and the sweep trajectory simulation model is configured to output a time-step vector relating to the movement of a catheter.

Abstract: The present invention provides an intraluminal imaging delivery assist platform for neurovascular use. The platform may include a catheter shaft having an imaging lumen and a working lumen arranged side-by-side, a proximal hub assembly having a working port and an imaging port, an intravascular ultrasound imaging assembly disposed at least partially within the imaging lumen, and a distal tip region configured for atraumatic advancement through neurovascular anatomy. The working lumen may extend through an imaging region and the distal tip region to receive a microwire during over-the-wire advancement. After positioning the imaging region at a target neurovascular region, the microwire may be withdrawn and an acoustic coupling medium may be introduced into the working lumen to support acquisition of a substantially circumferential intraluminal ultrasound imaging data.

Abstract: High-resolution intravascular ultrasound (H-IVUS) operates under a large acoustic bandwidth, provides high resolution while maintaining good depth penetration, and exhibits other favorable characteristics like focused imaging. A H-IVUS transducer assembly can be manufactured at a low cost using conventional methods commonly utilized in the microelectronics industry. The H-IVUS transducer assembly can include a printed circuit having one or more electrical signal conditioners. One or more convertors made of a polymer and configured to convert electrical energy to acoustic energy and acoustic energy to electrical energy can be formed in place away from the printed circuit. After construction, the one or more formed in place convertors are interfaced to the printed circuit with at least a conductive material.

Abstract: By identifying locations of contrast agent response, an intensity-based metric of contrast agent signal is used to control a duration of microbubble destruction with a medical ultrasound scanner. Feedback from motion of the transducer may be used to indicate when a user perceives enough destruction. A combination of both an intensity-based metric and transducer motion may be used to control the duration of bursting.

Abstract: A medical image processing device according to an embodiment includes processing circuitry. The processing circuitry detects a contrast medium from a medical image. The processing circuitry sets a first region of interest and a second region of interest in the medical image. The processing circuitry calculates a density ratio between a density of the contrast medium included in the first region of interest and a density of the contrast medium included in the second region of interest.

Abstract: An absorbent article includes a testing member that tests a health condition of a wearer based on vaginal discharge, wherein the testing member includes a movement portion that allows an excreta component as a component contained in excreta to move, and an indicator portion that develops color based on the excreta component guided from the movement portion, the movement portion includes a labeled antibody that causes an antigen-antibody reaction with the excreta component, the labeled antibody includes a colored antibody that has been colored, the indicator portion develops color by capturing at least one of a complex formed by causing the antigen-antibody reaction and the labeled antibody, and the absorbent article includes a colored region that covers a skin side of the colored antibody disposed in the movement portion.