Abstract: An extraction head for a cleaning machine is disclosed for traveling along a cleaning path on a variable-height floor. The extraction head comprises a body including a floor-facing surface and an extraction aperture disposed in the floor-facing surface. The extraction head comprises a vacuum outlet in fluid communication with the extraction aperture. The extraction head comprises an adjustable-height brush positioned in front of the extraction head body along the cleaning path. The adjustable-height brush is configured to translocate upwardly and downwardly as the extraction head moves along the cleaning path on the variable-height floor. The adjustable-height brush may comprise a proximal end and a distal end opposite the proximal end. The proximal and distal ends may be configured to translocate upwardly and downwardly relative to each other as the extraction head moves along the cleaning path on the variable-height floor.

Abstract: A docking station including a docking unit providing a traveling path for a robotic vacuum cleaner, having a mounted mopping cloth, that enters the docking unit; a mopping cloth separator disposed on the docking unit and configured to automatically separate the mounted mopping cloth from the robotic vacuum cleaner while the robotic vacuum cleaner is at a first position along the traveling path; and a mopping cloth coupler disposed on the docking unit and configured so that, after the mounted mopping cloth is separated from the robotic vacuum cleaner, and the robotic vacuum cleaner thereafter moves to a second position along the traveling path, the mopping cloth coupler supplies a mopping cloth to be mounted to the robotic vacuum cleaner from below the traveling path while the robotic vacuum cleaner is at the second position.

Abstract: The present disclosure relates to a method of controlling a dishwasher. The method of controlling a dishwasher of the present disclosure includes steps of: detecting a temperature of air supplied to a tub through a heating duct by a temperature sensor; operating a supply fan which supplies outdoor air to the heating duct; operating a heater disposed in the heating duct; determining whether the supply fan and the heater are normally operating; and determining that the supply fan and the heater are normally operating, when a temperature change detected by the temperature sensor is within a first set range.

Abstract: A spray arm, a water pumping mechanism and a cleaning machine thereof are disclosed in the present invention. The spray arm comprises a body (1;1?) and a top plate (2;2?). An air collection chamber (20;20?) is defined between the top plate (2;2?) and the top surface (1a; 1a?) of the body (1;1?), a plurality of water spray holes (13) is arranged in the air collection chamber (20;20?), the top plate (2;2?) has a plurality of spray openings (21) each corresponding to one water spray hole (13), and a gap (100) is formed between a top end of each water spray hole (13) and a bottom end of the corresponding spray opening (21).

Abstract: A system includes a dishwasher having a dish rack to receive dishes. An image capturing device captures a 2D image of the dish rack of the dishwasher and the dishes, and an image processing device determines a 3D image based on the captured 2D image and additionally captured metadata of the captured 2D image. A control device executes a wash program as a function of the determined 3D image.

Abstract: A bottle holder that is designed to hold a single bottle, yet is easily assemblable with additional bottle holders according to the invention to a multi-bottle drying station that has the appearance of a single unit.

Abstract: A method for imaging involves scanning an anatomical object within a patient and capturing reflected IR light with a plurality of cameras that are separate from the scanner. The IR images captured by the IR cameras are associated together to create an integrated image based on parallax between the IR cameras and the scanner. The integrated image is associated with a separate or optical light image of the anatomical object to generate an intra-operative 3D image that can be created in real-time. Systems for effectuating such imaging may include multiple surgical instruments supporting various cameras positioned to capture different fields of view and to increase parallax.

Abstract: A medical image display apparatus for displaying medical images of a lung on a screen includes a network interface receiving positional information of a navigation instrument from a position sensor of the navigation instrument, a video stream from an optical sensor of the navigation instrument, and medical images from an imaging device, a memory storing a plurality of medical images and instructions, a processor executing the instructions, and a display dynamically displaying images on the screen. The instructions, when executed by the processor, cause the medical image display apparatus to determine whether status information indicates a pathway reviewing mode, a target management mode, or a navigation mode. The instructions, when executed by the processor, further cause the display to dynamically select and update images, which are displayed on the screen, among the plurality of medical images based on the positional information of the navigation instrument and status information.

Abstract: A medical device comprising a shaft, a handle including a proximal portion and a distal portion, wherein the distal portion is fixed to a proximal portion of the shaft, and a channel extending from the handle into the shaft, wherein the channel includes a proximal channel and a distal channel, the proximal channel being rotatable relative to the distal channel and aligned with the distal channel throughout rotation of the proximal channel, wherein the proximal portion includes the proximal channel and the distal portion includes the distal channel, wherein the distal portion is rotatable relative to the proximal portion of the handle, and the shaft is configured to rotate with the distal portion of the handle.

Abstract: The present disclosure relates to a device configured to move within a body cavity, such as the gastrointestinal tract, in particular, the small intestine, and methods of using the device. The presently disclosed device may be self-driving, e.g., through the use of one or more traction-motion element, and the articulation of a tip of the device may be controlled and fine tuned. The presently disclosed device may be used in a variety of body cavities such as a vascular body lumen, a digestive body lumen, a respiratory body lumen, or a urinary body lumen, for example, for endoscopic purposes, for delivering a substance into the body cavity, for removing a substance or tissue from the body cavity, for capturing an image of the body cavity, and/or for performing an operation of a tissue or organ using the device.

Abstract: An endoscope having an outer sheath, a handle, an optical window and an optical module. The outer sheath includes a lumen extending between a proximal end and a distal end thereof. The handle is mounted at the proximal end of the outer sheath and includes an external data connector. The optical window is removably and sealingly mounted at the distal end of the outer sheath. The optical module is removably disposed within the distal end of the outer sheath and includes an integrated image sensor, an optical lens, and an optical module connector. The optical module connector is configured for selective disconnection from and reconnection to a mating line connector in electrical communication with the external data connector of the handle. The optical module and the outer sheath further include one or more alignment features configured to ensure correct radial and axial positioning.

Abstract: An endoscope can include a handle, an actuator coupled to the handle, and an elongated shaft coupled to the handle. The shaft can include a deflectable distal portion, an imaging assembly at a distal end of the shaft, a tube that defines a lumen, and a guide positioned within the lumen of the tube. The guide can include a first groove that cooperates with the tube to define a first lumen and a second groove that cooperates with the tube to define a second lumen through which communication lines associated with the imaging assembly pass. The endoscope can further include a steering wire coupled to the deflectable distal portion of the shaft, extending through the first lumen and coupled to the actuator, and coupled with the actuator such that actuation of the actuator causes the steering wire to deflect the distal portion of the shaft.

Abstract: The disclosure relates to an endoscopic device for a particularly flexible endoscope and/or an endoscopic instrument having at least one deflectable shaft segment that has a least one distal end element and at least one proximal end element, and between the two at least one first intermediate element and at least one second intermediate element that are directly adjacent and can be deflected with respect to each other. Accordingly to the disclosure, the first intermediate element and the second intermediate element are different from each other and are integrally interconnected.

Abstract: Several embodiments of the present invention are generally directed to medical visualization systems that comprise combinations of disposable and reusable components, such as catheters, functional handles, hubs, optical devices, etc. Other embodiments of the present invention are generally directed to features and aspects of an in-vivo visualization system that comprises an endoscope having a working channel through which a catheter having viewing capabilities is routed. the catheter may obtain viewing capabilities by being constructed as a vision catheter or by having a fiberscope or other viewing device selectively routed through one of its channels. The catheter is preferably of the steerable type so that the distal end of the catheter may be steered from its proximal end as it is advanced with the body. A suitable use for the in-vivo visualization system includes but is not limited to diagnosis and/or treatment of the duodenum, and particularly the biliary tree.

Abstract: An endoscopic device for use in a patient's body in disclosed. The endoscopic device may include an outer sheath having a proximal end and a distal end, a suction tube inside the outer sheath, a handle coupled to the distal end of the outer sheath, and a cap on the proximal end of the outer sheath, positioned to seal the proximal end of the outer sheath, wherein the outer sheath comprises a sterile appliance, wherein the cap is structured to open in response to a force applied through the suction tube, and wherein the suction tube comprises an internal cavity.

Abstract: An endoscope may include an expandable and collapsible working channel, a flexible endoscope body, and an optical sensor located at a distal tip of the endoscope body. The optical sensor can provide a distal field of view from the distal tip. In the collapsed configuration, the working channel can be collapsed such that a channel wall is in a first position relative to the endoscope body and the working channel defines a first cross-sectional area. In the expanded configuration, the channel wall is displaced relative to the first position and the working channel defines a second cross-sectional area that is larger than the first cross-sectional area.

Abstract: Disclosed embodiments relate to an endoscopic camera and methods for operating the camera. In one embodiment, the endoscopic camera includes a grip region to facilitate holding by a user. The camera may also include a mechanism for correcting improperly exposed video signals by modulating illumination parameters.

Abstract: An apparatus and method for reprocessing a medical device includes a decontamination basin, a first flush conduit, a second flush conduit, and a manifold. The first and second flush conduits have respective first and second coupling ports configured to fluidly connect to the medical device positioned within the decontamination basin. The manifold is fluidly connected to the first and second flush conduits and configured to distribute the fluid received therein accordingly. The apparatus also includes a first valve, a second valve, and a primary pump configured to discharge the fluid into the manifold at a predetermined supply flow rate. The first and second valve are positioned respectively in the first and second flush conduits for balancing the respective flow rates discharged therefrom at a first predetermined conduit flow rate and a second predetermined conduit flow rate.

Abstract: Systems and methods are provided for diagnosing otitis media. The method includes receiving an image captured from an image sensor and determining an instruction for a user to adjust a position of the image sensor to bring the image sensor into alignment with a tympanic membrane of a subject. The determined instruction is to the user via an output device. A clinical parameter representing otitis media is determined from an image of the tympanic membrane of the subject at a predictive model. The clinical parameter is provided to the user via the output device.

Abstract: An image capturing device and an image capturing system are provided for capturing images in the oral cavity. The image capturing device includes: a columnar main body having a prescribed length between the base and leading ends, the longitudinal direction of the main body follows the direction in which the main body is inserted into the oral cavity; a grip disposed on the same line as the main body on the base end side; a camera for capturing a subject image based on reflected light radiated from a light source and reflected by the oral cavity, the camera being disposed on the same line as the main body either inside the main body or closer to the base end than the main body; and a display for displaying the subject image captured by the camera, the display being disposed on the same line as the main body.

Abstract: A medical device that includes: a first handle coupled to a first sheath; a second handle coupled to a second sheath, wherein at least a portion of the first sheath is disposed within a lumen of the second sheath; and a patch. In a first configuration, the first handle and the second handle may be separated by a first distance, and the patch may be disposed between a distal portion of the first sheath and a distal portion of the second sheath. In a second configuration, the first handle and the second handle may contact one another or may be separated by a second distance, wherein the second distance is smaller than the first distance, and wherein a distalmost end of the second sheath is proximal of a proximal end of the patch.

Abstract: A supercontinuum light source can include a seed laser arranged to provide seed pulses with a pulse frequency Fseed; a pulse frequency multiplier (PFM) arranged to multiply the seed pulses by converting pulses having the pulse frequency Fseed to pump pulses with a pulse frequency Fpump, where Fpump is larger than Fseed; and a non-linear element arranged to receive said pump pulses and convert said pump pulses to pulses of supercontinuum light. The PFM can further include a splitter for splitting pulses into first and second sub beams each having the same pulse frequency, where the PFM is configured such that the sub beams experience different delays; and a combiner for combining said first and second sub beams into a beam having the pulse frequency that is greater than said same pulse frequency. The splitter can have an uneven splitter ratio.

Abstract: Disclosed herein are system and method for testing and analysis of visual acuity and changes using an acuity model, the acuity model generated based on one or more acuity chart design parameters and candidate acuity parameters calculated using the acuity test data of the subject, the acuity model comprising a chart-specific psychometric function determined using a family of multiple-optotype psychometric functions, and wherein the acuity model is configurable to estimate possibility of obtaining the acuity test data of the subject.

Abstract: In this invention, we used for the first time GAN method of deep learning in AI to predict the personalized normal undamaged original RNFL thickness contour/profile, using anatomical parameters of peripapillary blood vessel number, size and location from the OCT B-scan images. This is the first time that a personalized RNFL thickness contour/profile will be available and can potentially replace the current so called normative database of the RNFL thickness contour/profile.

Abstract: An OCT apparatus of an exemplary aspect includes an OCT scanner, image data generating unit, registration unit, and image data composing unit. The OCT scanner is configured to acquire three dimensional data sets by applying an OCT scan to mutually different three dimensional regions of a sample. The image data generating unit is configured to generate a plurality of pieces of image data from the three dimensional data sets. The registration unit is configured to perform a first registration between the plurality of pieces of image data by applying an image correlation calculation to each of overlap regions in the plurality of pieces of image data. The image data composing unit is configured to compose the plurality of pieces of image data based on a result of the first registration.

Abstract: A focus measuring arrangement for ophthalmic examination comprises an infrared light source system, which directs infrared light to a pupil of an eye of a person and forms a focusing pattern of the infrared light on a retina. A receiving arrangement apertures receives the infrared light of the focusing pattern from the retina through separate areas of the pupil. An image forming arrangement causes the infrared light passed through the apertures to form an individual image of the focusing pattern for each of the apertures in an image space of the receiving arrangement, the image forming arrangement causing an optical correspondence between the at least two apertures and the separate areas of the pupil. A detecting surface arrangement is located at a non-zero distance behind the at least two apertures and the image forming arrangement in a direction of propagation of the infrared light reflected from the retina for receiving the infrared light passed through the at least two apertures.

Abstract: A method of evaluating the efficiency of a myopia control solution for a person. The method includes providing an initial value of a prolateness indicator of at least one eye of the person, determining a second value of the prolateness indicator of the at least one eye of the person after having the person use the myopia control solution over a given period of time, and evaluating the efficiency of the myopia control solution by comparing the evolution between the initial and second values of the prolateness indicator of the at least one eye with a value of reference.

Abstract: A map of a person's spatial vision abilities, including areas of low acuity and areas of high acuity, may be generated from medical records or from a calibration phase. During presentation of a computer simulation such as a computer game, the map is provided to a foveated renderer to optimize which areas should be rendered most crisply. Content placement may be optimized to ensure that any critical elements to the game, for instance, any text that needs to be seen or treasures or special pickups that need to be seen clearly can be moved into regions of the player's field of view that the person has higher acuity in.

Abstract: A device for a surgical imaging system is provided. The device comprises interface circuitry configured to receive, from an eye tracking sensor, an output comprising information indicative of a status of an eye of a user viewing a display and processing circuitry configured to determine a condition of the user based on the received output signal.

Abstract: Techniques are described herein that are capable of tracking an eye of a user using multiple lasers. Light from the lasers is scanned across respective partially overlapping portions of a region that includes an eye of a user during respective time periods. Portion(s) of the light that are reflected from the eye are detected by respective photodetector(s). In an example implementation, a signal corresponding to the detected portion(s) is provided in a pixel of a frame buffer based at least in part on a current angle of a mirror used to scan the light across the region. In a second implementation, digital state(s) are provided based at least in part on difference(s) between a reference signal and signal(s) corresponding to the detected portion(s), and a time value indicating a time at which a glint is detected by a photodetector is provided when a digital state triggers an interrupt handler.

Abstract: An ophthalmic examination apparatus, characterized in that the ophthalmic examination apparatus comprises at least one visual radiation source and a light manipulation arrangement, which is configured to receive light from the visible radiation source, and form light patterns from the light and direct at least one light pattern of the light patterns in a converging manner toward an pupil aperture in a pupil plane of the ophthalmic examination apparatus and locate the at least one light pattern at a non-zero radial distance from a pupil center of the pupil aperture such that a waist of the light patterns is located at the pupil plane in order to provide a person with guidance for enabling an aperture of an iris of his/her eye to approach and/or locate at the pupil aperture in the pupil plane.

Abstract: An ophthalmic apparatus according to an embodiment includes an illumination system configured to project illumination light onto a subject's eye, and a photography system configured to perform photography of the subject's eye. The illumination system and the photography system are configured to satisfy a Scheimpflug condition. The illumination system includes a light source unit configured to output slit illumination light, and an illumination polarizer configured to extract an illumination polarization component from the slit illumination light. The illumination system is further configured to project the illumination polarization component onto the subject's eye. The photography system includes a photography polarizer configured to extract a photography polarization component from return light from the subject's eye with the slit illumination light projected, and an image sensor configured to detect the photography polarization component.

Abstract: A method includes receiving location data of a monitoring device when carried by a user and receiving motion data of the monitoring device. The motion data is associated with a time of occurrence and the location data. The method includes processing the received motion data to identify a group of the motion data having a substantially common characteristic and processing the location data for the group of the motion data. The group of motion data by way of processing the location data provides an activity identifier. The motion data includes metric data that identifies characteristics of the motion data. The method includes transferring the activity identifier and the characteristics of the motion data to a screen of a device for display. The activity identifier being a graphical user interface that receives an input for rendering more or less of the characteristics of the motion data.

Abstract: A computer implemented method, system and device are provided. The method transmits an energizing signal from an external antenna, coupled to a local external device (LED), to an implanted antenna of a passive implanted medical device (PIMD). The energizing signal is transmitted while the external antenna is at first and second positions. The method receives, at the external antenna, first and second energy transfer characteristic (ETC) values associated with the first and second positions, respectively. The method is under control of one or more processors configured with program instructions. The method analyzes the first and second ETC values to determine a difference therebetween. The method provides an energy transfer level (ETL) indicator based on the difference between the first and second ETC values. The ETL indicator provides feedback regarding a degree of energy transfer associated with at least one of the first and second positions.

Abstract: Systems and methods for real-time target validation during radiation treatment therapy based on real-time target displacement and radiation dosimetry measurements.

Abstract: Methods, systems, and devices for generating resolution-enhanced space-domain image of a target sample based on optical coherent tomography (OCT) imaging technologies are disclosed. In an aspect, a system includes a processing platform comprising one or more processing devices operatively coupled to one or more memory devices. The processing platform is configured to acquire a plurality of related sets of optical coherence tomography (OCT) image data for a target object volume, reconstruct space-domain OCT images for each of the plurality of sets of OCT image data, coherently average the reconstructed space-domain OCT images to suppress noise or enhance a signal-to-noise ratio, and computationally expand a spatial bandwidth of the coherent-averaged OCT image data via deconvolution.

Abstract: A minimally invasive spectrophotometric system. In some embodiments, the system includes a minimally invasive device and a spectrophotometer. The spectrophotometer may include: a transmitting fiber, a receiving fiber, and a head. The head of the spectrophotometer may include: a light source connected to the transmitting fiber and a photodetector connected to the receiving fiber. A portion of the transmitting fiber may be in an insertion tube of the minimally invasive device, and a portion of the receiving fiber may be in the insertion tube of the minimally invasive device. The head of the spectrophotometer may occupy a volume of less than 300 cubic centimeters.

Abstract: A handheld device for photoacoustic microscopy. The handheld device includes an optical assembly, a light beam scanner and a transducer unit. The optical assembly is arranged to provide a light beam. The light beam scanner includes a reflector arranged to reflect the light beam from the optical assembly to provide a reflected light beam to an object, a first drive mechanism operable to move the reflector relative to the optical assembly to move the reflected light beam relative to the object, and a second drive mechanism operable to move the reflector relative to the optical assembly to move the reflected light beam relative to the object. The transducer unit is arranged to detect photoacoustic signals emitted by the object in response to receiving the reflected light beam.

Abstract: Disclosed herein is a method of facilitating diagnosing of a vasculature disorder using intravascular imaging, in accordance with some embodiments. Accordingly, the method may include a step of generating, using an intravascular imaging device, at least one intravascular image associated with a patient. Further, the method may include a step of analyzing, using a processing device, the at least one intravascular image. Further, the method may include a step of determining, using the processing device, at least one vein diagnosis based on the analyzing. Further, the method may include a step of displaying, using a display device, the at least one vein diagnosis. Further, the method may include a step of storing, using a storage device, the at least one vein diagnosis and the at least one intravascular image associated with the at least one vein diagnosis in a database.

Abstract: Embodiments of the present disclosure provide a monitoring device that combines blood pressure, SpO2, and ECG monitoring functionality into a single handheld device and can measure these parameters simultaneously. The monitoring device may comprise a first sensor comprising an electrode to measure electrical signals corresponding to cardiac activity of a user's heart and a second sensor comprising an electrode as well as an optical sensor to perform a PPG and measure an amount of light absorbed by the blood of the user concurrently with measurement of the electrical signals. The optical sensor may generate a blood pressure signal and an oxygen saturation signal based at least in part on the amount of light absorbed by the blood of the user. The optical sensor may include a neural network trained to estimate blood pressure based on PPG measurements and demographic information of the user, as discussed in further detail herein.

Abstract: A method of generating a biometric estimation for a subject includes receiving real-time PPG data from a PPG sensor attached to the subject, and generating a biometric estimation for the subject via an adaptive predictive model using the real time PPG data. The method includes receiving a measurement of the biometric via a biometric monitoring device and, in response to receiving the measurement of the biometric, updating one or more parameters of the model in real-time to improve biometric estimation accuracy of the model. The method may also include detecting whether the generated biometric estimation is above or below a threshold and, in response to determining that the generated biometric estimation is above or below the threshold, receiving a measurement of the biometric and then updating the parameters of the model to improve biometric estimation accuracy of the model.

Abstract: A method includes displaying a physiological parameter measurement interface comprising a plurality of physiological parameter identifiers, receiving a physiological parameter measurement operation, wherein the physiological parameter measurement operation comprises an operation of selecting, among the physiological parameter identifiers, a first physiological parameter identifier and a second physiological parameter identifier; and measuring, in response to the physiological parameter measurement operation, a first physiological parameter and a second physiological parameter of a measured object using a physiological parameter sensor of the electronic device.

Abstract: The present disclosure concerns a method and system for remote photoplethysmography (rPPG). The system uses a camera to capture images of a subject and processes these images to monitor physiological parameters such as heart rate and respiratory rate. This is achieved by analyzing subtle changes in skin color that occur due to blood volume changes in the skin. The system allows for contactless, remote, video-based vital signs measurements.

Abstract: A display device includes a display panel including a plurality of pixels, a pressure sensor configured to sense pressure applied from outside of the display device, a photosensor configured to detect light, and a processor configured to receive a pressure signal sensed by the pressure sensor in each of a plurality of measurement segments, and a first pulse wave signal sensed by the photosensor in each of the plurality of measurement segments. The processor is further configured to identify at least one of the measurement segments as an abnormal measurement segment, remove a pulse waveform from the first pulse wave signal in the abnormal measurement segment, generate a pulse wave signal by interpolating the pulse waveform, and calculate blood pressure based on the pulse wave signal.

Abstract: A sensor device or system for performing a blood pressure measurement comprises a finger abutment surface, a first sensor operative to sense blood volume pulses in a finger pressed on the finger abutment surface, a second sensor operative to sense a force or pressure with which the finger is pressed on the finger abutment surface, and processing circuitry operative to process amplitudes of the sensed blood volume pulses and the sensed force or pressure with which the finger is pressed on the finger abutment surface to determine an absolute blood pressure.

Abstract: A blood pressure measurement device includes: a watch body including a first display unit configured to display information including a time and a blood pressure value and disposed on a back side of a wrist; a band including a pressure measurement unit including a pump and a pressure sensor configured to detect a pressure, and band portions provided at symmetrical positions in a circumferential direction of an outer circumferential surface of the pressure measurement unit, connected to the watch body, and extending from the pressure measurement unit, the band configured to fix the watch body to the wrist; a cuff structure fluidly connected to the pump and in which pressure is detected by the pressure sensor; and a first control unit provided in the watch body or the pressure measurement unit and configured to calculate a blood pressure value based on a detection result of the pressure sensor.

Abstract: A cuff cover configured to cover a cuff structure in a biological information measurement device, the biological information measurement device including the cuff structure including one or more cuffs and electrodes, and an attachment unit, the biological information measurement device configured to measure blood pressure value and an electrocardiographic waveform of a human body attached to the human body by the attachment unit, the cuff cover including a covering portion formed of a non-conductive material, the covering portion configured to cover the cuff structure, a mounting portion configured to mount the covering portion to the cuff structure, and an energization assisting unit provided in the covering portion, the energization assisting unit configured to assist energization between each of the one or more electrodes included in the cuff structure covered with the covering portion and the human body when the biological information measurement device is attached to the human body.

Abstract: An apparatus includes a processing device coupled to a memory storing instructions. The instructions cause the processing device to receive photoplethysmography (PPG) data derived from signals associated with at least one PPG sensor; receive acoustic data derived from signals associated with at least one audio sensor oriented to sense a heart rate of a human subject; and combine the PPG data and the acoustic data to generate a heart rate estimate.

Abstract: Methods, systems, and devices for cardiovascular health metric determination are described. A system may be configured to receive a photoplethysmogram (PPG) signal representative of a pulse waveform for a user. The pulse waveform may include a first local maximum, a downward slope following the first local maximum, and a curved feature representative of a transition from a systolic phase to a diastolic phase of a cardiac cycle. Additionally, the system may extract one or more morphological features from the pulse waveform and compare the one or more morphological features with one or more features from a plurality of baseline PPG signal morphologies associated with a plurality of chronological ages. The system may determine a cardiovascular health metric that indicates a cardiovascular health of the user relative to a chronological age of the user and cause a graphical user interface to display an indication of the cardiovascular health metric.

Abstract: Provided are methods and devices for blood flow measurement.