Abstract: Ae multifunction vacuum cleaner includes a container body, which houses a suction unit of air flows from the outside; a filter of the air flows sucked from the outside; an accumulation tank of materials sucked from the outside and filtered by the filter; and a steam production unit and a system sending steam to the outside of the container body.

Abstract: One embodiment of a vacuum cleaner is provided and is capable of performing efficient autonomous traveling. The vacuum cleaner includes a main casing, driving wheels, a map generation part, a self-position estimation part, an information acquisition part and a control unit. The driving wheels enable the main casing to travel. The map generation part generates a map indicative of information on an area. The self-position estimation part estimates a self-position. The information acquisition part acquires external information on the main casing. The control unit controls the operation of the driving wheels based on the map generated by the map generation part to make the main casing autonomously travel. The control unit makes a search motion to perform when the information on the area at autonomous traveling is different from the information on the area indicated in the map generated by the map generation part.

Abstract: A cleaner performing autonomous traveling includes a main body, a driving unit moving the main body, a battery supplying power to the driving unit, a communication unit performing communication with a charging station to charge the battery, a sensor sensing a signal emitted from the charging station, and a controller controlling the driving unit such that the main body is docked to the charging station on the basis of the signal sensed by the sensor, wherein when the main body starts to move to dock to the charging station, the controller determines a kind of the signal sensed by the sensor and controls the driving unit such that the main body moves along a traveling path corresponding to a circle centered on a predetermined point on the basis of the determined kind of the signal.

Abstract: A robotic cleaning system may include a robotic cleaner having a robotic cleaner dust cup and a docking station having a docking station dust cup configured to fluidly couple to the robotic cleaner dust cup. The docking station dust cup may include a first debris collection chamber, a second debris collection chamber fluidly coupled to the first debris collection chamber, and a filter fluidly coupled to the first debris collection chamber and the second debris collection chamber.

Abstract: A Kentucky mop comprises a mop head (11) having an elongate tubular header (19) formed of fabric material from which a plurality of elongate co-extending members (18) of absorbent material extend. A handle assembly (10) of the mop comprises a mount (13) having a pivotable mounting bar 15 that can be inserted into the tubular header (19) and pivoted towards a body (14) of the mount. The header (19) is securely constrained by the bar (15) in a channel formed on the bottom wall of the mount body (14).

Abstract: A mop draining bucket adapter configured to attached to a bucket and having a mop compression assembly configured to be disposed within the bucket and with two compression plates hingedly coupled to the respective lower ends thereof and with a tether member coupling respective upper ends of the compression plates. Each of the compression plates have a plurality of holes defined thereon, defining a compression zone sized to receive a cleaning head of a cleaning device, and operably configured to rotate about their respective lower ends in a plate compression path to vary a volume of the compression zone and compress the cleaning head of the cleaning device to remove liquid retained therein.

Abstract: A spray system assembly for a household appliance, such as a dishwasher, wherein the spray system assembly can include a diverter housing with a diverter valve, a sprayer mount, and a rotatable sprayer. The rotatable sprayer can include a hub, a spray head, and a pair of spaced spacers. The sprayer mount can include a collar for receiving the hub of the rotatable sprayer. The pair of spaced spacers can circumscribe the hub.

Abstract: A dishwasher includes a tub at least partially defining a treating chamber with an access opening, a sump fluidly coupled to the treating chamber, at least one sprayer emitting liquid into the treating chamber, a pump, a conduit fluidly coupling the sump to the pump and the pump to the at least one sprayer, thereby defining a recirculation circuit through which the liquid sprayed into the treating chamber collects in the sump and is pumped back to the at least one sprayer, a filter assembly provided in the sump and having a filter through which at least a portion of the liquid passes, and an insert sleeve at least partially located within the filter assembly.

Abstract: A dishwasher includes: a case; a tub; a door; a sump disposed below the tub and configured to store washing water; a spray nozzle configured to spray washing water into the tub; a heater configured to heat washing water and generate steam; a steam nozzle disposed at the door or the tub and configured to discharge steam to the tub; a first rack disposed in the tub and configured to receive a washing target to be washed by washing water sprayed from the spray nozzle; and a second rack disposed in the tub and configured to receive a washing target to be washed by steam supplied from the steam nozzle. The steam discharged from the steam nozzle is supplied to an inside of the second rack through one of a lower surface or a circumferential surface of the second rack.

Abstract: A dishwasher is disclosed that may include a washing chamber, a rack, and a bracket. The rack may be slidably arranged in relation to the bracket to provide different vertical positions of the rack in relation to the washing chamber. The dishwasher may include a securing mechanism configured to secure the rack in relation to the bracket, in at least a first vertical position of the rack in relation to the washing chamber. The securing mechanism may include a protruding element and a tapered portion. The protruding element may be arranged to extend into the tapered portion when the rack is in the first vertical position. The tapered portion may be arranged to prevent movement of the protruding element through the tapered portion to secure the rack in relation to the bracket.

Abstract: Provided are a medical image processing device, an endoscope system, and a method of operating a medical image processing device that can enhance the reliability for recognition results obtained by recognition processing in a case where a lesioned part or the like is diagnosed by recognition processing of artificial intelligence (AI). Comparison between a first medical image and a second medical image to be a comparison target with respect to the first medical image is performed. A specific medical image selected in accordance with a result of the comparison from among the second medical images is acquired. A monitor displays a plurality of recognition results that are obtained from recognition processing that is performed with respect to the specific medical image and performed for recognizing the observation target.

Abstract: An imaging scope includes an internal surface defining an internal cavity, a window permitting visual inspection of the internal cavity, a fluid in the internal cavity having a pressure different than ambient pressure, and a leak indicator transitionable between nonvisible and visible through the window when the pressure of the fluid changes toward ambient pressure.

Abstract: An endoscopic tissue snare system comprising: a sleeve adapted to be slid over the exterior of an endoscope; a pair of push tubes slidably mounted to the sleeve, each of the push tubes comprising a distal opening and a proximal opening; a distal balloon secured to the distal ends of the pair of push tubes; and a snare comprising a pair of free ends and an intermediate portion disposed between the pair of free ends, wherein the snare extends into the proximal opening of one push tube, up the length of the push tube, out the distal opening of that push tube, across the face of the distal balloon, into the distal opening of the other push tube, down the length of that push tube, and out the proximal opening of that push tube.

Abstract: Embodiments of the disclosure include an endoscope tip assembly for use on an endoscope, during procedures. The endoscope tip assembly may include a base configured to receive an endoscope tip configured to not disengage from the endoscope tip during a procedure. The endoscope tip assembly may also include a plurality of struts which is connected by a webbing, may fold flat during insertion, and may assume a balloon-like shape during withdrawal.

Abstract: A device, a system, and a method for diagnosis and treatment of e.g., mitral valve regurgitation. The system includes a catheter that is configured to deflect and/or steer a distal tip of the catheter inside a patient's body, a guide wire that is configured to guide the catheter in an enclosed in vivo space within the patient's body, a proximal device handle that is configured to allow the non-parallel spiral cable to switch back and forth between flexibility modes, and a treatment device that is independent of, yet still within, an instrument channel of the catheter, wherein the distal tip of the catheter further includes an inflatable balloon which may be an asymmetrical intussuscepted shape, and may be attached within a section of the distal tip of the catheter, wherein the distal tip further includes a visualization device for directly viewing an in vivo space within the patient.

Abstract: The present embodiments provide systems and methods suitable for delivering an agent including a plurality of particles to a target site. In example embodiments, a system suitable for delivering an agent to a target site includes a catheter having a first wall defining a lumen sized for delivery of the agent to the target site. The catheter has a distal end terminating with a primary opening of the lumen, an opposing proximal end, and a longitudinal axis extending between the distal end and the proximal end. At least one secondary opening is formed at the distal end, wherein the secondary opening is configured to allow fluid to flow through the secondary opening to create a steady flow of fluid at an angle with respect to the longitudinal axis and prevent the plurality of particles from flowing through the secondary opening.

Abstract: The present invention discloses an endoscopic apparatus having a conduit-like overtube configured to receive an endoscope. Input openings at a proximal end of the overtube allow for fluid to be input therethrough. The fluid is expelled through output opening positioned along the length of the overtube. An annular balloon is positioned along the length of the overtube to inhibit movement and the removal of the overtube until the procedure is concluded.

Abstract: An optical signal transmission module is provided, in which a lens surface for condensing light emitted from an LD configured to convert an electrical signal to an optical signal and emit light of the optical signal is integrally formed on an end portion of an optical fiber, a mounting substrate for the LD to be mounted is configured with a specially-shaped substrate, and a fixing portion (a fixing hole portion) for the optical fiber to be fixed is integrally formed on the mounting substrate, at a position where the light emitted from the LD (the light of the optical signal) can be incident on the lens surface.

Abstract: A stereoscopic optical system including: left and right channels; an electromagnetic actuator including a stator and rotor; wherein first optical components of the left channel are arranged in a left tube and second optical components of the right channel are arranged in a right tube; the stator is arranged outside the guide tubes; the rotor includes a left rotor, in which one or more of the first optical components is accommodated, and a right rotor, in which one or more of the second optical components is accommodated; the left and right rotors are mounted in one of the left and right tubes to be movable in a longitudinal axial direction; the left and right rotors include paramagnetic and/or ferromagnetic material and are movable by an electromagnetic field; the stator includes distal and proximal permanent magnets oppositely polarized; and the stator includes an electric coil for generating the electromagnet field.

Abstract: An insertion apparatus includes an endoscope, a first air feeding apparatus, a first air suction apparatus, a second air feeding apparatus, a second air suction apparatus, a pressure detector, an operation detector and a controller, and the controller performs first control on the second air feeding apparatus and the second air suction apparatus so that the amount of gas per predetermined time period fed from the second air feeding apparatus becomes equal to the amount of gas suctioned by the second air suction apparatus, and when the operation detector detects the operation and the pressure detector detects that the pressure in a subject changes from a first pressure to a second pressure, the controller maintains the first control to perform air feeding/air suction into/from the subject at the second pressure.

Abstract: A medical imaging system includes multiple illuminating endoscopes with cameras having image sensors exposure control and a frame memory. The exposure control of each camera activates the frame memory and light source for collection of selected frame images by the frame memory. A data link among the endoscopes synchronizes exclusive initiation of the exposure controls in recurring serial order for activation of each respective frame memory and light source.

Abstract: There is provided an endoscope imaging unit including parallel electric wires, an image sensor located on a front end side by being separated from front ends of the respective electric wires, and having a light incident surface substantially perpendicular to the electric wires, a flexible substrate located between the electric wires and the image sensor, having a circuit, and conductively connecting the respective electric wires to the circuit, an image sensor mounting peninsula portion bent with respect to the substrate, and mounting the image sensor thereon by conductively connecting the image sensor to the circuit, and a circuit mounting peninsula portion extending from the substrate, located by being bent to a side opposite to the image sensor before the image sensor mounting peninsula portion, and mounting and conductively connecting an electronic component or the circuit pattern to the circuit.

Abstract: A visualization tissue retractor includes a handle defining a proximal end portion and a distal end portion, a dock extending from the proximal end portion of the handle and configured to receive a portable display device, a retractor arm extending from the distal end portion of the handle and defining a guide track disposed along at least a portion of a length thereof, and a surgical camera assembly engaged with the guide track and configured to slide therealong.

Abstract: The present disclosure relates to systems and methods for generating three-dimensional tissue maps, and particularly fibrosis maps of cardiac tissue. An intravascular device includes an elongated member and a distal tip. An imaging assembly is integrated with the elongated member to enable imaging of the microstructure of tissue near the distal tip. One or more navigation electrodes are positioned at or near the distal tip. Electrical mapping and/or ablation assemblies may also be integrated with the device. Images may be characterized according to a level of fibrosis and, using the corresponding determined locations of the images, a three-dimensional map showing areas of differential fibrosis may be generated. Electrical mapping data may also be integrated with the fibrosis map to generate a composite fibrosis and voltage map.

Abstract: A battery-powered medical device comprising an outer housing having an opening formed therein, at least one power source housed within the outer housing, which is configured to at least partially enclose the power source so as to prevent contamination of the power source with biohazardous materials, and the power source being removable from the outer housing via the opening, a cover configured to cover the opening in the outer housing and to retain the power source within the outer housing, and an actuator provided within the outer housing that engages with a portion of the power source when the cover covers the opening, wherein the actuator is configured to physically remove the power source from the outer housing and the outer housing is configured to release the power source via the opening without requiring physical contact between the user and the power source.

Abstract: A method is provided for observing structure and function of individual cells in a living human eye, comprising: using an adaptive optics optical coherence tomography (AO-OCT) system to image a volume of a retinal patch including numerous cells of different types, as for example, ganglion cells; using 3D subcellular image registration to correct for eye motion, including digitally dissecting the imaged volume; and using organelle motility inside the cell to increase cell contrast and to measure cell temporal dynamics.

Abstract: The ergonomic refraction station and procedure of use consists of a phoropter helmet, chair, work table, monitor and electronic circuit, which seeks to perform a refraction test in the conditions most similar to the usual work environment of the examinee, for this it consists of a lightweight phoropter helmet, which adjusts to the size of the user, made of transparent material to allow contact with its surroundings and execute the usual movements of head, neck, eyes and working distance, parameters that are captured by optical, distance and inclination sensors, located on the phoropter helmet or on the flexible and adjustable table with “swan neck” arms, so that once the patient places the phoropter helmet and sits on the chair and table, the sensors send information to a microprocessor that shall recognize the real working conditions of the patient and adapt them to the conditions of the ergonomic refraction station, such as: size of letters, aligned inclinations of head-eye-hand coordination with the vision

Abstract: System and method for enabling user communication with eye-based feedback. A selection interface selectively presents a series of communication options to the user. A sensor detects light reflected from the eye of the user and provides a correlative signal, which is processed to determine a relative eye orientation that includes the relative orientation of the pupil with respect to the head orientation of the user. The eye may be illuminated by a light source or ambient lighting. The sensor may detect infrared light reflected from the eye illuminated by an infrared light source. The relative eye orientation may be determined by processing images captured by an image sensor. The relative eye orientation may be determined by detecting an instantaneous relative orientation of the pupil or by detecting a transient change of the pupil. Based on the determined relative eye orientation, a selected communication option is determined and implemented.

Abstract: An exemplary non-invasive measurement system includes a single-photon counting camera and a processor. The single-photon counting camera includes an array of SPAD detectors configured to detect, during a sequence of gated time intervals, coherent continuous light that exits a body after the light enters and scatters within the body, and output a plurality of electronic signals representative of the detected light. The processor is configured to generate, based on the electronic signals, a sequence of speckle pattern image frames corresponding to the gated time intervals. Other exemplary non-invasive measurement systems are also described.

Abstract: Described herein are apparatuses for dental scanning and components of apparatuses for dental scanning. A component of a dental scanning apparatus may include a beam splitter, a transparency and an image sensor. The component may have a first surface and a second surface. The transparency may be affixed to the first surface of the beam splitter, and may comprise a spatial pattern disposed thereon and be configured to be illuminated by a light source of the dental scanning apparatus. The image sensor may be affixed to the second surface of the beam splitter, wherein as a result of the transparency being affixed to the first surface of the beam splitter and the image sensor being affixed to the second surface of the beam splitter, the image sensor maintains a stable relative position to the spatial pattern of the transparency.

Abstract: An imaging device which can easily recognize the timing of administration of a fluorescent dye through reproduction of recorded images. When indocyanine green is administered, an operator manipulates an input unit so that the input unit sends to a controller a signal indicating that indocyanine green has been administered to a subject. When the controller receives the signal indicating that indocyanine green has been administered to the subject, a light source controller turns a fluorescent light source on, and then off after a lapse of a predetermined time.

Abstract: A flexible head probe and modular head probe system that includes an optical functional near-infrared spectroscopy (fNIRS) system and integrated position sensor. The head probe and modular head probe system determines physiological data based upon the optical information gathered by the fNIRS system and gathers motion and position data from the position sensor. The physiological data and motion and position data are combined to permit topographical and tomographic analyses of a user's brain tissue.

Abstract: An image-processing method for marking plaque fluorescent reaction areas is provided, including: obtaining a first RGB image of a mouth region; obtaining a second RGB image of the mouth region; respectively converting the first RGB image and the second RGB image into a first HSV image and a second HSV image; obtaining a first average brightness value of the first HSV image and a second average brightness value of the second HSV image; normalizing the first average brightness value or the second average brightness value according the first average brightness value and the second average brightness value to obtain a normalized image; converting the normalized image into a third RGB image, and obtaining a plurality of pixel points of the dental plaque according to the third RGB image and the first RGB image or the second RGB image; and marking the pixel points in the third RGB image.

Abstract: A method (700) for localizing inflammation within a user's mouth using an oral care device (10), comprising the steps of: (i) emitting (720) light by one or more light emitters (42) of the oral care device; (ii) detecting (730), by a light detector (40) of the oral care device, reflectance from a surface at each of a plurality of locations within the user's mouth to generate reflectance data for each of the plurality of locations; (iii) determining (750), by the controller, for the plurality of locations, whether gingiva at that location is inflamed; and (iv) providing (760), via a user interface (46) of the oral care device, information to the user regarding the inflamed location or locations.

Abstract: Systems and methods are provided for preparation of orthodontics and prosthodontics. A method may include scanning a patient's teeth to form first 3D data of the patient's teeth including a removable element that obscures part of the dental surfaces of the patient's teeth and non-obscured tooth surfaces, removing the removable element form the patient's teeth so that the removable element no longer obscures the part of the dental surfaces of the patient's teeth, and scanning the previously obscured part of the dental surfaces of the patent's teeth and the non-obscured tooth surfaces.

Abstract: Disclosed is a wrap which is removably attached with a body part of a user to provide compression, and protection. The wrap includes first sensing unit, second sensing unit, movement unit, adjuster unit, and a power source. The first sensing unit senses the physiological state of the user's body. The second sensing unit measures the dimension of the body part of the user. The body part is selected from at least one of: wrist, ankle, lower back, knee and/or combination thereof. The movement unit receives sensed information from first sensing unit, and second sensing unit to support an inflate mechanism and deflate mechanism to provide desired compression to the body part of the user. The adjuster unit configured with the movement unit to engage or disengage the wrap from the body part of the user. The power source which further includes a rechargeable battery powers the first sensing unit, second sensing unit, movement unit, and the adjuster unit.

Abstract: A worker management apparatus includes: a work performance information generation unit generating work performance information representing a performance state of work by a worker; an acquisition unit acquiring physical information representing a physical condition relating to the worker; an estimation unit estimating an influence of the physical condition upon the performance state, based on the work performance information, the physical information, and information representing a characteristic of the worker; and an improvement measure generation unit generating improvement measure information representing a measure to improve the performance state relating to the worker, according to an estimation result by the estimation unit, thereby presenting a suitable measure to improve the work performance of the worker by managing with high precision the work performance state and physical condition relating to the worker.

Abstract: A system comprising a multi-sensor catheter for monitoring of a cardiac hemodynamic condition, e.g. heart failure, is disclosed. The multi-sensor catheter comprises multi-lumen catheter tubing comprising first and second optical pressure sensors, and their respective optical fibers and connectors. For right heart and pulmonary artery catheterization, a flow-directed multi-sensor catheter comprises a guidewire lumen, an inflatable balloon tip, and sensor locations are configured for placement of a sensor in each of the right atrium and pulmonary artery, for measurement of central venous pressure in the right atrium and a pulmonary artery pressure. An optical fiber for oximetry may be included. The outside diameter is small enough for insertion through a vein of the arm. For monitoring of a left atrial shunt, sensors of a multi-sensor catheter are configured for measuring pressures upstream and downstream of the shunt, e.g. in the left and right atria, or left atrium and coronary sinus.

Abstract: A hospitalization management system including a heart failure analyzer that receives diagnostic data including at least sensor data representative of one or more physiological signals sensed from a hospitalized patient using one or more sensors and assesses risk of rehospitalization for the patient using the diagnostic data. The outcome of the risk assessment is used during and following the patient's hospitalization for reducing the risk of rehospitalization.

Abstract: The invention provides a sensor for measuring both impedance and ECG waveforms that is configured to be worn around a patient's neck. The sensor features 1) an ECG system that includes an analog ECG circuit, in electrical contact with at least two ECG electrodes, that generates an analog ECG waveform; and 2) an impedance system that includes an analog impedance circuit, in electrical contact with at least two (and typically four) impedance electrodes, that generates an analog impedance waveform. Also included in the neck-worn system are a digital processing system featuring a microprocessor, and an analog-to-digital converter. During a measurement, the digital processing system receives and processes the analog ECG and impedance waveforms to measure physiological information from the patient. Finally, a cable that drapes around the patient's neck connects the ECG system, impedance system, and digital processing system.

Abstract: A PPG system for determining a stroke volume of a patient includes a PPG sensor configured to be secured to an anatomical portion of the patient. The PPG sensor is configured to sense a physiological characteristic of the patient. The PPG system may include a monitor operatively connected to the PPG sensor. The monitor receives a PPG signal from the PPG sensor. The monitor includes a pulse trending module determining a slope transit time of an upslope of a primary peak of the PPG signal. The pulse trending module determines a stroke volume of the patient as a function of the slope transit time.

Abstract: Systems, methods, and computer program product embodiments are disclosed for performing electrophysiology (EP) signal processing. An embodiment includes an electrocardiogram (ECG) circuit board configured to process an ECG signal. The embodiment further includes a plurality of intracardiac (IC) circuit boards, each configured to process a corresponding IC signal. The embodiment further includes a communications interface communicatively coupled to a remote device, and a processor, coupled to the ECG circuit board, the plurality of IC circuit boards, and the communications interface. The processor is configured to receive, via the communications interface, feedback from the remote device. The processor is further configured to control, via the communication interface, the remote device based on the ECG signal, the IC signals, or the feedback from the remote device.

Abstract: Non-invasive systems and techniques can be used to accurately measure blood pressures of patients being supported by continuous flow left ventricular assist devices. For example, this document describes cuff occlusion devices and methods for their use so that the blood pressure and pulsatility of patients with significantly reduced pulsatility as a result of continuous flow left ventricular assist device support can be accurately measured in a non-invasive fashion.

Abstract: The invention relates to a system for the early detection of invalidating states of persons, such as a postoperative bleeding of a patient for example, in particular secondary bleeding after organ surgery, comprising a detector unit (30) for continuously detecting multiple selected parameters. The detector unit has sensors (14, 16, 18), a computing unit, an interface and an analysis logic which evaluates the probability of the presence of a health anomaly, such as the probability of postoperative bleeding for example, on the basis of the present parameter states. Additionally, a display device (40) is provided by means of which the evaluation is displayed. The pressure in the postoperative organ compartment and/or a parameter which represents the expansion of the section of the skin adjoining the organ compartment is selected as the selected parameter.

Abstract: A dashboard centered around arrhythmia or atrial fibrillation tracking is provided. The dashboard includes a heart or cardiac health score that can be calculated in response to data from the user such as their ECG and other personal information and cardiac health influencing factors. The dashboard also provides to the user recommendations or goals, such as daily goals, for the user to meet and thereby improve their heart or cardiac health score. These goals and recommendations may be set by the user or a medical professional and routinely updated as his or her heart or cardiac health score improves or otherwise changes. The dashboard is generally displayed from an application provided on a smartphone or tablet computer of the user.

Abstract: Diffuse optical flow (DOF) sensors can be used to assess deep tissue flow. DOF sensors positioned on a foot can provide fluctuating light intensity data to an analyzer, which can then determine absolute and/or relative blood flow. The determined absolute and/or relative blood flow can be signaled to an operator, for example a surgeon for intra-operative use. DOF sensors may be utilized to assess pedal revascularization, for example to guide interventional procedures and to evaluate their efficacy. A support structure can carry a plurality of DOF sensors, such that when the support structure is placed onto a patient's foot, the DOF sensors are disposed adjacent different locations on the foot. The different locations may correspond to different topographical regions of the foot, for example different pedal angiosomes.

Abstract: The present invention provides automatic zeroing and electronic level adjustment of pressure transducer in relation to patient, applied to vital signs monitors, where the automatic zeroing of circuit of pressure consists of circuit and software able to remove the value of the virtual ground voltage from the pressure calculation, and the electronic level adjustment of transducer in relation to patient consists of compensating, through software, the value in mmHg related to level difference in cmH2O informed by the user by means of monitor interface.

Abstract: System (10) for extracting a fetal heart rate from at least one maternal signal using a computer processor (26). The system includes sensors (12-18) attached to a patient to receive abdominal ECG signals and a recorder and digitizer (20) to record and digitize each at least one maternal signal in a maternal signal buffer (22A-22D). The system further includes a peak detector (40) to identify candidate peaks in the maternal signal buffer. The signal stacker (42) of the system stacks the divides at least one maternal signal buffer into a plurality of snippets, each snippet including one candidate peak and a spatial filter (44) to identify and attenuate a maternal QRS signal in the plurality of snippets of the maternal signal buffer, the spatial filter including at least one of principal component analysis and orthogonal projection, to produce a raw fetal ECG signal which is stored in a raw fetal ECG buffer.

Abstract: A biological sensor module includes a light emitter that emits irradiation light with which a living body is irradiated, a light receiver that receives reflected light that is the irradiation light reflected off the living body, and a passage section through which the irradiation light and the reflected light pass. The passage section includes an outer surface section that comes into contact with the living body and an inner surface section that is opposite the outer surface section. The outer surface section has a first convex curved surface that presses the living body, and the inner surface section has a second convex curved surface that collects the reflected light incident on the passage section into a spot on the light receiver.

Abstract: A method and a smart watch for detecting and prompting abnormal heart rate data, and the start watch comprises a main processor and an auxiliary processor. When the main processor is in a dormancy state, the auxiliary processor collects heart rate data and analyzes whether the heart rate data is abnormal. When it is determined that the heart rate data is abnormal, the auxiliary processor is interrupted and the main processor is woken up, and the abnormal data is submitted to the main processor for processing. When the processing is completed, the main processor returns to the dormancy state, so that the main processor does not need to participate in the heart rate data collection and analysis process. The power consumption during running of the auxiliary processor is one quarter of the power consumption of the main processor in the dormancy state.