Abstract: Systems, devices, and methods for monitoring and assessing blood glucose level in a patient are discussed. An exemplary system receives physiologic information from a patient using an ambulatory medical device. The physiologic information is correlated to, and different from, a direct glucose level measurement. The system determines a glucose index indicative of an abnormal blood glucose level using the received physiologic information by the two or more physiologic sensors. The system may use the glucose index to initiate or adjust a therapy, or to trigger a glucose sensor, separate from the two or more physiologic sensors, to directly measure blood glucose concentration.

Abstract: Sleep conditions such as moderate-to-severe sleep apnea can be assessed using a multi-night assessments. A respiration signal (e.g., acquired from a sensor strip) can be processed via a computing device. The respiration signal can be segmented and the segments can be classified to identify one or more apnea/hypopnea events. In some examples, some of the segments can be normalized such that each segment input for classification can be of the same size. The identified one or more apnea/hypopnea events can be used to estimate a nightly parameter indicative of a severity of (or presence of) sleep apnea. The nightly parameters from a multi-night period can be used to estimate a multi-night parameter indicative of the severity of (or presence of) sleep apnea. In some examples, quality checks can be performed to filter out some data (e.g., to exclude data from entire nights or exclude a portion of data from individual nights).

Abstract: According to an embodiment of the present application, as a method of determining whether to output an alert of a user's thyroid dysfunction, there may be provided a thyroid dysfunction monitoring method including receiving a user's medication information from an external device; selecting a monitoring algorithm to be used to determine whether to output the alert on the basis of the medication information; and determining whether to output the alert on the basis of the selected monitoring algorithm.

Abstract: A blood pressure device includes a first blood pressure measuring device, a second blood pressure measuring device, and a controller. The first blood pressure measuring device is to be worn on a first position of a wrist so as to obtain a first blood pressure information of the first position. The second blood pressure measuring device is to be worn on a second position of the wrist so as to obtain a second blood pressure information of the second position. The controller is electrically coupled to the first blood pressure measuring device and the second blood pressure measuring device so as to adjust tightness between the expanders and the user's skin, respectively. The controller receives, processes, and calculates a pulse transit time between the first blood pressure information and the second blood pressure information, and the controller obtains at least one blood pressure value based on the pulse transit time.

Abstract: A body fluid testing device having an improved illumination, includes: a test unit including: a sample part having a sheet portion, with body fluid of a user applied onto a first surface thereof; an illumination part having a light source for providing light to the sample part; a battery for supplying power to the illumination part; and a casing receiving a lens group for magnifying the body fluid applied onto the sheet portion; and a user terminal configured such that a camera takes an image of the sample part magnified by the lens group, prior to analyzing the image by the user terminal.

Abstract: In an embodiment a vital sign sensor includes an emitter component configured to emit light, a detector component configured to detect light, a first layer of a substantially transparent material, wherein the emitter component is embedded in the first layer, and a second layer of a light scattering material arranged on the first layer, wherein the second layer includes converter particles, and wherein the first layer and the second layer are surrounded by at least one wall of a reflective material.

Abstract: The present invention relates to a device, system and method for improved non-invasive and objective detection of pulse of a subject. The device comprises an input unit (2a) configured to obtain a series of images of a skin region of the subject and a processing unit (2b) for processing said series of images by detecting pulse-related motion of the skin within the skin region from the series of images, generating a motion map of the skin region from the detected pulse-related motion, comparing the generated motion map with an expected motion map of the skin region, and determining the presence of pulse within the skin region based on the comparison.

Abstract: A catheter system may include a catheter assembly, which may include a catheter adapter and a catheter extending distally from a distal end of the catheter adapter. The catheter system may also include a needle assembly, which may include a needle hub and an introducer needle. The needle hub may include: a distal end coupled to the proximal end of the catheter adapter; a proximal end; a wall disposed between the distal end of the needle hub and the proximal end of the needle hub; and a flashback chamber proximate the wall. The introducer needle may be press-fit within a through-hole of the wall. The catheter system may also include a plug coupled to the proximal end of the needle hub. A blood collection device may be coupled to a proximal end of the plug to collect blood from a patient.

Abstract: An electrical impedance imaging method, a system, a storage medium and an electronic device. Said method comprises: acquiring electrical impedance measurement signals of a tested human body area at a plurality of measurement times; for the electrical impedance measurement signal at each measurement time, constructing a corresponding instantaneous differential image on the basis of the electrical impedance measurement signal; constructing an image matrix on the basis of the instantaneous differential images corresponding to the plurality of measurement times, each column in the image matrix being a vector corresponding to the instantaneous differential image; determining, on the basis of the image matrix, a covariance matrix corresponding to the image matrix; obtaining, according to the covariance matrix, a weight vector of the covariance matrix; and obtaining, on the basis of the covariance matrix and the weight vector, an electrical impedance state image of the tested human body area.

Abstract: A system for measuring blood pressure information of a subject, and includes: an electrocardiogram detection unit for detecting an electrocardiogram of the subject; a pulse wave detection unit for detecting pulse waves of the subject; a first computation unit for computing a ventricular systolic phase pulse transit time on the basis of the R wave of the electrocardiogram waveform based on the potential detected by the electrocardiogram detection unit and the P wave of the pulse waveform detected by the pulse wave detection unit, and computing a ventricular diastolic phase pulse transit time on the basis of the T wave of the electrocardiogram waveform and the D wave of the pulse waveform.

Abstract: An apparatus includes a catheter, an introducer, and an actuator. A distal end portion of the introducer has a lock configured to couple the introducer to a closed system intravenous line at least partially disposed in a body. The lock is configured to transition a seal of the closed system intravenous line from a closed state to an open state when coupled thereto. The actuator is at least partially disposed in the introducer and coupled to a proximal end portion of the catheter. The actuator is configured to move the catheter between a first position, in which the catheter is disposed within the introducer, and a second position, in which the catheter extends through the seal of the closed system intravenous line such that a distal end surface of the catheter is positioned distal to the closed system intravenous line.

Abstract: A system, according to various embodiments, includes eyewear (or any other suitable wearable device) that includes at least one environmental pollution monitoring sensor (e.g., at least one light pollution, air pollution, radioactive pollution, thermal pollution, and/or noise pollution sensor) that may be used to monitor the presence of environmental pollution adjacent a wearer of the eyewear. The system may further include one or more health monitoring sensors to determine the health effects of the environmental pollution on the wearer. In certain circumstances, the system may alert the user to potentially harmful environmental conditions, or convey preventative healthcare advice to the wearer.

Abstract: This disclosure generally relates to systems and methods for facilitating determination of morphology (e.g., shape) and structure (e.g., size, rigidity) and/or penetrating channels (e.g., microchannels) of occlusions (e.g., clots, fluid obstructions, tumors, chronic total occlusions) involving magnetic particles (e.g., nanoparticles, microparticles) controlled by an external magnetic control system.

Abstract: An imaging system includes an ultrasound probe, and an interventional medical device having a tracking device. The ultrasound probe includes an ultrasound transducer to generate an ultrasound field-of-view, a tracking field generator to generate an electromagnetic locator field, and a wireless receiver. The interventional medical device has a distal end portion to which the tracking device is mechanically coupled. The tracking device includes a plurality of tracking coils, a wireless transmitter, and a power supply circuit. The plurality of tracking coils interact with the electromagnetic locator field to determine a location within the electromagnetic locator field and to generate tracking data. The wireless transmitter is configured to transmit the tracking data from the tracking device of the interventional medical device to the wireless receiver of the ultrasound probe. The power supply circuit is configured to supply electrical power to the wireless transmitter of the tracking device.

Abstract: A diffuse optical tomography (DOT) system for generating a functional image of a lesion region of a subject is described. The DOT system includes a source subsystem configured to generate optical waves, a probe coupled to the source subsystem and configured to emit the optical waves generated by the source subsystem toward the lesion region and to detect optical waves reflected by the lesion region, a detection subsystem configured to convert the optical waves detected by the probe to digital signals, and a computing device including a processor and a memory. The memory includes instructions that program the processor to receive the digital signals sent from the detection subsystem and perform reconstruction using a depth-regularized reconstruction algorithm combined with a semi-automated interactive convolutional neural network (CNN) for depth-dependent reconstruction of absorption distribution.

Abstract: Various methods and systems are provided for a guided at-home ultrasound imaging session. In one example, a system for ultrasonically scanning a tissue sample includes a hand-held ultrasound probe including a transducer array of transducer elements, a probe position tracking device including one or more position sensors coupled to the ultrasound probe, and a controller. The controller is configured to, during an imaging session, determine a position of the ultrasound probe relative to a target position based on position data collected by the probe position tracking device, and responsive to an indication that the ultrasound probe is at the target position, acquire image data with the transducer array.

Abstract: A wireless handheld ultrasound system an ultrasound front end to transmit ultrasonic waves into a subject and convert received ultrasonic echoes into digital data; an image processor coupled to the ultrasound front end to convert the digital data into an image; and a power section coupled to the ultrasound front end and the image processor. The power section may include a battery; a charging circuit to charge the battery; and a wireless power transducer coupled to the charging circuit to convert wireless power received from an external source into electrical energy for the charging circuit.

Abstract: A non-invasive analyte sensor device that includes a sensor housing, and a decoupled antenna/detector array having at least one transmit antenna/element and at least one receive antenna/element. The sensor housing has a maximum length dimension no greater than 50 mm, a maximum width dimension no greater than 50 mm, a maximum thickness dimension no greater than 25 mm, and a total interior volume of no greater than about 62.5 cm3. In addition, the at least one transmit antenna/element and the at least one receive antenna/element have a maximum spacing therebetween that does not exceed 50 mm and a minimum spacing therebetween that is at least 1.0 mm, and the at least one transmit antenna/element and the at least one receive antenna/element are less than 95% coupled to one another, or less than 90% coupled to one another, or less than 85% coupled to one another, or less than 75% coupled to one another.

Abstract: Systems and methods for medical object tracking are provided. The system may include a plurality of radio frequency transceivers that each emit a radio frequency signal at a first respective frequency. The system may further include a radio frequency beacon that is attachable to the medical object and that emits a second radio frequency signal at a second respective frequency different than the first respective frequency in response to receiving the radio frequency signal. The system may also include a control device in communication with the plurality of radio frequency transceivers, the control device including processing circuitry that determines a location of the medical object in three-dimensional space based at least in part on the second radio frequency signal. The beacon may include a platform, a first fixation element that extends from the platform; and a second fixation element that is tilted relative to the first fixation element.

Abstract: An ultrasound imaging system includes an array of ultrasound transducer elements chat send ultrasound energy into an object when energized for respective transmission time periods and provide responses to ultrasound energy emitted from the object for respective reception time periods, a reception modulation circuit modulating the responses with irregular sequences of modulation coefficients, a combiner circuit combining the modulated responses, and an image reconstruction processor configured to computer-process the combined modulated responses into one or more images of the object.