Abstract: There is provided a cleaning nozzle that cleans a cleaning target face that is one of a holding face that holds a workpiece and/or a surface of the workpiece held on the holding face. The cleaning nozzle includes an air nozzle having an jet port for jetting air toward the cleaning target face and extending in a direction parallel to the cleaning target face, and a suction nozzle having a suction port for sucking air on the cleaning target face and arranged adjacent to and in parallel to the air nozzle.

Abstract: A cleaner includes a suction unit guiding air and dust, a main body including a first cyclone unit separating the air and the dust, which are suctioned through the suction unit, from each other and a second cyclone unit separating the dust from the air discharged from the first cyclone unit, and a guide unit disposed in the main body to partition a first dust storage part, in which the dust separated in the first cyclone unit is stored, and a second dust storage part, in which the dust separated in the second cyclone unit is stored, from each other. The guide unit is separably coupled to the main body, and when the guide unit is separated from the main body, a dust discharge part of the second cyclone unit is exposed to the outside.

Abstract: The present disclosure provides a pipe for easy assembly and separation. The pipe for easy assembly and separation according to an embodiment of the present disclosure includes a rear end pipe formed in a cylindrical shape; an insertion pipe located at the other end of the rear end pipe; a front end pipe that is connected to the rear end pipe by inserting the insertion pipe into one end of the front end pipe; a first fixed portion located at one end of the insertion pipe; and a second fixed portion located at the front end pipe to correspond to the first fixed portion when the insertion pipe is inserted into the front end pipe.

Abstract: A cleaning system including an energy storage device receptacle, a motor controlled via a motor control circuit, a switch, and a control circuit. The energy storage device receptacle is configured to selectively receive an energy storage device. The switch is electrically connected to the energy storage device receptacle. The switch has an on position and an off position. The control circuit is electrically connected to the switch. The control circuit is configured to output power from the energy storage device to the motor control circuit when the switch is in the on position, and prohibit power from the energy storage device to the motor control circuit when the switch is in the off position.

Abstract: A vacuum cleaner includes a vacuum body defining an agitation chamber, an agitator, and an illumination system. The agitator is rotatably disposed at least partially within the agitation chamber and includes an agitator body defining an illumination chamber. The illumination system is at least partially disposed within the illumination chamber and includes at least one light source. Alternatively, a vacuum cleaner includes a vacuum body defining an agitation chamber, an agitator rotatably disposed at least partially within the agitation chamber, an illumination coupled to the vacuum body and including at least one light source, and a light guide configured to redirect light emitted in a first direction from the at least one light source to a second direction.

Abstract: A method of operating an autonomous cleaning robot is provided. The method includes receiving, at a handheld computing device, data representing a status of a debris collection bin of the autonomous cleaning robot, the status of the bin including a bin fullness reading. The method also includes receiving, at the handheld computing device, data representing a status of a filter bag of an evacuation station, the status of the filter bag including a bag fullness reading. The method also includes presenting, on a display of the handheld computing device, a first status indicator representing the bin fullness reading, and presenting, on the display of the handheld computing device, a second status indicator representing the bag fullness reading.

Abstract: A cleaning device for removing marks from a surface includes a body of melamine foam sponge having a front side and a rear side opposed to the front side, and a holding layer secured to the rear side of the body of melamine foam sponge to prevent relative movement therebetween. The holding layer is preferably a cloth and more preferably natural or synthetic chamois which can be used to wipe and/or buff the surface after rubbing the body of melamine foam sponge on the surface to remove at least one surface mark. The body of melamine foam sponge can be pre-moistened with a liquid such as a disinfecting solution.

Abstract: A cleaning device for removing marks from a surface includes a body of melamine foam sponge having a front side and a rear side opposed to the front side, and a holding layer secured to the rear side of the body of melamine foam sponge to prevent relative movement therebetween. The holding layer is preferably a cloth and more preferably natural or synthetic chamois which can be used to wipe and/or buff the surface after rubbing the body of melamine foam sponge on the surface to remove at least one surface mark. The body of melamine foam sponge can be pre-moistened with a liquid such as a disinfecting solution.

Abstract: A cleaning cart can comprise a body defining an underside and at least one shelf, wherein the body has a footprint. A plurality of wheels can rotatably couple to the body. A sweeping attachment can be coupled to the underside of the body. The sweeping attachment can comprise a slide comprising a track that is coupled to the body and a carriage that is configured to slide relative to the track along an axis about and between a first position that is generally within the footprint of the body and a second position that is generally outside of the footprint of the body. A sweeping assembly can be coupled to the carriage. The sweeping assembly can couple to a sweeping element.

Abstract: The present disclosure relates to a dishwasher. The dishwasher of the present disclosure includes a tub forming a washing chamber washing a washing target, a first circulation duct in which an air discharged from the tub flows, an outside air inflow duct in which an air from the outside flows, a fan assembly discharging the air thereto, passes through the first circulation duct and the outside air inflow duct, a second circulation duct heating and supplying a part of the air discharged from the fan assembly to the tub, an exhaust duct discharging a remaining part of the air discharged from the fan assembly to the outside.

Abstract: An endoscope system includes: an endoscope configured to generate an imaging signal and output the generated imaging signal; an image processing device configured to perform image processing on the imaging signal input from the endoscope; a display configured to display an image of a subject based on the imaging signal subjected to the image processing by the image processing device; and a first processor configured to calculate a sum of a first processing time from when the endoscope generates the imaging signal to when the endoscope outputs the imaging signal, a second processing time from when the image processing device receives the imaging signal to when the image processing device outputs the imaging signal to the display, and a third processing time from when the display receives the imaging signal to when the display displays the image based on the imaging signal.

Abstract: A steerable device, such as a steerable catheter, may include a control handle and an insertion shaft extending outwardly therefrom. In use, the insertion shaft is navigated to an area of interest for examination and/or treatment thereof. The steerable device may include a steering system that controls the deflection angle of the distal end of the insertion shaft in two or more non-planar directions for navigating the insertion shaft to the area of interest. The steering system may also include a locking mechanism for arresting or partially arresting the movement of the distal end of the insertion shaft in a first direction independent of arresting or partially arresting the movement of the distal end in a second non-planar direction.

Abstract: A medical device includes an elongate body and an inflatable balloon attached to and partially surrounding at least a section of the elongate body. The inflatable balloon is selectively inflatable between a deflated state and an inflated state. Engagement between the balloon and a physiological lumen is provided, in part, by multiple protrusions extending from the inflatable balloon and having various physical and functional characteristics. In certain implementations, the balloon may be configured to exhibit various separation forces by applying different strains to the balloon, such as by varying the degree to which the balloon is inflated or deflated.

Abstract: An endoscope distal end structure includes: an imager, a distal end frame that is a three-dimensional molded interconnect device including a housing portion and a cable connecting portion, the cable connecting portion including a cable connection electrode, the housing portion being formed by cutting out at least a part of an outer peripheral portion of the distal end frame, the housing portion having a bottom surface on which connection terminals are formed, and a first side surface and a second side surface which are continuous to each other and on which a ground pattern is formed, a through hole having electrical conductivity, the through hole penetrating from the bottom surface to the cable connecting portion, and an electrical conductive pattern connecting a cable connection electrode and the ground pattern, the electrical conductive pattern being arranged on a side surface of the distal end frame.

Abstract: A handheld endoscope has a disposable, single-use portion that includes a distal tip, cannula, housings, and a proximal port that is connected to a substantially straight working channel. The cannula is rotatable about the main longitudinal axis of the cannula. The endoscope also includes a re-usable portion that has a handle and display module. The single-use and re-usable portions mate and un-mate with each other via physical side-mounting arrangement as well as separate electrical connectors. The handle can house imaging system electronics that support manual and auto imaging modes which can be selected via touch screen control on the display module. The re-useable portion is sealed with various o-rings and/or gaskets and can be highly fluid resistant to facilitate disinfecting and/or sterilization.

Abstract: An endoscope adaptor according to an embodiment may include a base portion including a transmission mechanism configured to decelerate and transmit rotation of a driven member configured to be driven to rotate by a drive part of a robot arm to an endoscope holder. The transmission mechanism includes a drive transmission shaft that is configured to be rotated by the rotation of the driven member, a first linkage member that is configured to rotate integrally with the drive transmission shaft, and a second linkage member being rotatable with respect to the drive transmission shaft and configured to rotate with first linkage member in a linked manner. The base portion includes a stopper configured to come in contact with the second linkage member to stop rotation of the drive transmission shaft.

Abstract: A protective sheath for a bronchoscope is provided, comprising a flexible and collapsible sleeve having a first open end and a second open end; wherein the first open end includes a first resilient member adapted to sealably connect to a bronchoscope control unit; and wherein the second open end includes a second resilient member adapted to sealably connect to an adapter device for receiving the bronchoscope. The sleeve is constructed from a nonpermeable, collapsible, and food grade plastic. A suction port is preferably attached to the sleeve adapted to fluidically remove air and fluids from the sleeve during the bronchoscopy procedure.

Abstract: Endoscope assemblies, biopsy caps, and methods for making and using the same. An example endoscope assembly may include an endoscope having a channel formed therein and a port that provides access to the channel. A cap may be coupled to the port. The cap may include a base having a securing member for securing the cap to the port, an outer shell and a brush section disposed within the interior volume adjacent the disk shutter section, the brush section including a plurality of brushes arranged in a helical fashion.

Abstract: Disclosed is a disposable cover for avoiding contamination of an endoscope. The disposable cover includes an elongate hollow body configured to enclose at least a portion of the endoscope. The elongate hollow body includes a first opening configured at a first end portion of the elongate hollow body, a second opening configured at a second end portion of the elongate hollow body and an intermediate body portion extending between the first and second end portions. The disposable cover also includes at least one attachment means arranged on each of the first and second end portions.

Abstract: Provided is an endoscope system including an elongated tube with one or more channels extending in a longitudinal direction along the elongated tube. The channels allow inserting of a viewing device for obtaining images from the distal end, inserting of surgical instruments to operate at the distal end, or passing of materials such as air or water. The channel for inserting the viewing device is enclosed or has a cover at the distal end of the elongated tube, such that the viewing device has no direct contact of body tissues, thereby eliminating the need for sterilization. Also provided is a safe and economical method for conducting endoscopy involving one-time use of a tube to keep the viewing device from directly contacting the body tissues.

Abstract: An oral and oropharyngeal cancer screening system and associated methods are disclosed. In at least one embodiment, the screening system provides an at least one oral and oropharyngeal cancer screening device configured for selectively capturing images of an oropharyngeal area of an at least one patient. The screening device provides an elongate, relatively compact housing, a distal end of the housing being selectively bendable. An imaging module is positioned within the housing, the imaging module providing a lens, an at least one light source, and an imaging sensor positioned in the distal end of the housing. A user application resides in memory on an at least one user device in selective communication with the at least one screening device. The user application is configured for receiving images captured by the at least one screening device and recording risk factors, automatically analyzing the captured images and potential health-risk factors to screen for OPML and oral and oropharyngeal risk.

Abstract: The present invention provides medical devices comprising a camera combined with a second device selected from an endotracheal tube, oral airway, supraglottic airway, tracheostomy tube, suction catheter, tubeless intubating device, tool tube and/or stylet. The present invention also provides methods for rapid and accurate placement of a medical device in a patient with a guidance of a bougie and continuous real-time monitoring, including a remote monitoring, of the patient after the placement.

Abstract: [Object] To provide a medical light source device and a medical observation system capable of switching a light source while suppressing an increase in size and complication of a device. [Solution] A medical light source device according to the present disclosure includes: a plurality of light sources; and a light source switching section that holds an end section of a light guide that transmits light, and is capable of disposing the end section on one of optical paths of light emitted by the plurality of light sources.

Abstract: A method for producing a laryngoscope blade and a laryngoscope blade including a base blade and a tube which is arranged at least in part on an outer face of the base blade, extends approximately in a longitudinal direction of the base blade and is firmly connected to the base blade, wherein the tube, at its side facing toward the base blade, has at least in part a longitudinally extending corrugation which, with the outer face of the base blade, forms a longitudinally extending cavity, wherein the tube is connected to the base blade by a respective soldering seam in the lateral edge regions of the corrugation.

Abstract: The present disclosure provides an improved method for photobleaching an eye of a subject. The disclosed method may be used in a number of psychophysical test methods, including, but not limited to, measurement of dark adaptation. The improved method for photobleaching involves at least one of the following improvements: (i) the use of a bleaching light emitting a particular wavelength of light or a tailored spectrum of wavelengths; (ii) restricting or otherwise spatially tailoring the region of the retina that is subject to photobleaching; and (iii) utilizing a bleaching light having an intensity that is at or below the intensity of ambient daylight. The present disclosure additionally provides a combination of a photobleaching light and an apparatus to administer a psychophysical test suitable for use in practicing the disclosed methods.

Abstract: A model eye is disposed on a reference light path of reference light in a reference optical system so as to reflect or scatter the reference light at a model retina in order to form an interference optical system used to obtain interference light from the reference light of the reference optical system and signal light illuminated onto an examined eye in a signal optical system.

Abstract: An optical coherence tomography (OCT) engine includes a digital Fourier-Transform (dFT) spectrometer, a tunable delay line, and a high-speed optical phased array (OPA) scanner integrated onto a single chip. The broadband dFT spectrometer offers superior signal-to-noise ratio (SNR) and fine axial resolution; the tunable delay line ensures large imaging depth by circumventing sensitivity roll-off; and the OPA can scan the beams at GHz rates without moving parts. Unlike conventional spectrometers, the dFT spectrometer employs an optical switch network to retrieve spectral information in an exponentially scaling fashion—its performance doubles with every new optical switch added to the network. Moreover, it also benefits from the Fellgett's advantage, which provide a significant SNR edge over conventional spectrometers. The tunable delay line balances the path length difference between the reference and sample arms, avoiding any need to sample high-frequency spectral fringes.

Abstract: The present application discloses an ophthalmic photographing device that enables easy detection of a pupil diameter. The present invention pertains to an ophthalmic photographing device that is provided with: an anterior ocular segment illumination means for illuminating an anterior ocular segment of an eye of a subject with invisible light; an imaging element that is sensitive to at least invisible light and that is for capturing an image of the eye of the subject; and a processing means for processing an image captured by the imaging element, wherein when an image of an index projected onto the anterior ocular segment fulfills a prescribed condition, the processing means starts detection of a pupil diameter of the eye of the subject using an image formed on the imaging element by means of light reflected from the anterior ocular segment that has been illuminated with the invisible light from the anterior ocular segment illumination means.

Abstract: A tracking scanning laser optics device configured for mounting in headgear having at least one opening for positioning in front of an eye of a user includes a mounting unit, an invisible light source supported by the mounting unit for directing invisible light through a pupil, and at least one visible light source supported by the mounting unit for directing visible light through the pupil for writing on to the retina within a portion thereof scanned by 2-D scanning optics supported by the mounting unit. An imaging device supported by the mounting unit receives at least the invisible light reflected by the retina and stores an image thereof, and a calibration unit operative in conjunction with the 2-D scanning optics determines an origin in 2-D space for serving as a reference point for identifying a location of the portion within the retina.

Abstract: A laser surgery system includes a light source, an eye interface device, a scanning assembly, a confocal detection assembly and preferably a confocal bypass assembly. The light source generates an electromagnetic beam. The scanning assembly scans a focal point of the electromagnetic beam to different locations within the eye. An optical path propagates the electromagnetic beam from a light source to the focal point, and also propagates a portion of the electromagnetic beam reflected from the focal point location back along at least a portion of the optical path. The optical path includes an optical element associated with a confocal detection assembly that diverts a portion of the reflected electromagnetic radiation to a sensor. The sensor generates an intensity signal indicative of intensity the electromagnetic beam reflected from the focal point location. The confocal bypass assembly reversibly diverts the electromagnetic beam along a diversion optical path around the optical element.

Abstract: An optical system for observing reflected light from a fundus includes: an irradiation unit for irradiating an eye with light exited from a light source; a light-acceptance unit for accepting reflected light reflected on a fundus of the eye; and a polarization control unit for making light irradiated to the eye z-polarization axisymmetric with respect to an optical axis and blocking the z-polarization of reflected light reflected on the eye and directed to the light-acceptance unit.

Abstract: Meta-lens based ocular imaging, near-eye display, and eye-tracking systems are described. The systems can include a single focusing optic and an integrated circuit that provides illumination light and includes an imaging array. The focusing optic includes meta-atoms formed on a substrate. The systems may have no moving parts and achieve imaging or image-projection fields-of-view approaching or exceeding 180 degrees. Because of their low part count, the systems can be robust and have a very small form factor.

Abstract: Devices that include an intraocular pressure sensor and are also adapted to function as a capsular tension ring. The devices include an arcuate body, optionally with first and second free ends, the arcuate body comprising an arcuate antenna and an elastomeric coating layer disposed on the arcuate antenna, and an electronic module adapted to sense intraocular pressure.

Abstract: A sensory mapping method for a human brain is disclosed. The method includes the steps of flattening the cortical surface of the human brain, projecting functional imaging data onto the flattened surface, smoothing the functional imaging data, generating a sensory map, registering sensory maps across individuals and analyzing the maps in the common space. The flattening utilizes a conformal parametrization method. The smoothing utilizes a topological smoothing method that utilizes a diffeomorphic smoother. The registering is diffeomorphic. The sensory mapping method may further include a step of processing the functional imaging data to produce topological results.

Abstract: a) A Gabor domain optical coherence microscopy (GD-OCM) system providing high resolution of structural and motion imaging of objects such as tissues is combined with the use of reverberant shear wave fields (RevSW) or longitudinal shear waves (LSW) and two novel mechanical excitation sources: a coaxial coverslip excitation (CCE) and a multiple pronged excitation (MPE) sources providing structured and controlled mechanical excitation in tissues and leading to accurate derivation of elastographic properties. Alternatively, general optical computed tomography (OCT) is combined with RevSW or LWC in the object to derive elastographic properties. The embodiments include (a) GD-OCM with RevSW; (b) GD-OCM with LSW; (c) General OCT with RevSW; and General OCT with LSW.

Abstract: Methods, devices and systems for confocal microscopy of human tissues or other samples are described that can be manufactured at a low cost, and are small and portable. One apertureless confocal microscope includes a dispersion element that produces output beams having different spectral components for illumination of a target, such as a tissue. The confocal microscope also includes one or more lenses that receive reflected beams from the target and focus the reflected beams onto a linear variable filter. The linear variable filter is positioned to receive the focused light to allow a particular range of spectral components of light to pass through the linear variable filter that is a function of a spatial location of the focused light incident on the linear variable filter. The described confocal microscopes, among other features and benefits, can greatly facilitate disease diagnosis in medical applications.

Abstract: A fluorescence imaging system for imaging an object, the system includes a white light provider that emits white light, an excitation light provider that emits excitation light in a plurality of excitation wavebands for causing the object to emit fluorescent light, a component that directs the white light and excitation light to the object and collects reflected white light and emitted fluorescent light from the object, a filter that blocks light in the excitation wavebands and transmits at least a portion of the reflected white light and fluorescent light, and an image sensor assembly that receives the transmitted reflected white light and the fluorescent light.

Abstract: Methods and systems are provided for detecting infectious pathogens in a saliva sample by using a Raman spectrometer to obtain Raman spectrum data of the saliva sample. A score is determined based on the Raman spectrum data using a machine learning, the score indicates whether an infectious pathogen is present in the saliva sample. In certain aspects, the methods and systems operate to determine if an individual is infected with COVID-19 based on Raman spectrum data of a saliva sample of the individual.

Abstract: The invention relates to a device and corresponding method for raster-scan optoacoustic imaging, the device comprising: a radiation source comprising at least one Raman laser source, the radiation source being configured to generate a plurality of pulses of electromagnetic radiation, each of the pulses comprising portions of electromagnetic radiation at two or more distinct wavelengths, and at least one acousto-optic tunable filter configured to select, from at least one of the pulses, one of the portions of electromagnetic radiation at one of the wavelengths; an irradiation unit configured to irradiate a region of interest of an object, in particular a biological tissue, with the selected portion of electromagnetic radiation of the at least one pulse; a detection unit configured to detect acoustic waves emitted from the region of interest in response to irradiating the region of interest with the selected portion of electromagnetic radiation of the at least one pulse; and a scanning unit configured to move t

Abstract: A system for monitoring temperature of an individual. The system includes a support housing with at least one temperature sensor. The temperature sensor is coupled to at least one temperature output. Individuals can walk adjacent to or through the support and have their temperature taken. Additionally, the support can be toward and around individuals.

Abstract: A biological data measurement device includes a substrate disposed at a position spaced a predetermined distance from a body surface of a living organism as a measuring object via a support member so that an air layer is formed between the substrate and the body surface. The substrate is provided with a temperature measurement device including an infrared thermometer for measuring a body surface temperature Tsk of the body surface and a substrate thermometer for measuring a substrate temperature Tsub of the substrate. The temperature measurement device measures the body surface temperature Tsk and the substrate temperature Tsub in the same place at least twice of a first timing A and a second timing B.

Abstract: A biological data measurement device in which a living organism having a first thermal resistance Rth1 from a core to a surface is a measuring object, includes a heat insulating layer which is disposed on a body surface of the measuring object and has a second thermal resistance Rth2; a measurement device for measuring a first and a second temperatures, which is segregated by the heat insulating layer; and an adding device for adding a predetermined delay time to the second temperature in order to correct a response delay of the first temperature as compared with the second temperature. The first temperature is a bottom side temperature of a bottom surface of the heat insulating layer, which is in contact with the body surface, and the second temperature is a top side temperature of a top surface of the heat insulating layer.

Abstract: Systems, methods, and apparatuses to detect persons having fever. For example, A fever scanner can have a thermal camera to capture a thermal image of a person, a distance sensor to measure a distance between the person and the fever scanner, and a processor to determine a first temperature from the thermal image and calculate a second temperature of the person based on the first temperature and the distance. When the second temperature is above a threshold, the fever scanner can generate an alert.

Abstract: A non-invasive blood pressure monitoring device includes an inflatable blood pressure cuff, a pump device for pressurizing the cuff, a pressure sensor to monitor blood pressure as physiological parameter, and an electrically actuated, normally-open solenoid valve configured to maintain a cuff pressure. A control unit configured to regulate a valve hold value for holding the normally-open solenoid valve at a desired closed position, wherein the valve hold value is at least one of a voltage value and a current value for controlling actuation of the normally-open solenoid valve. At least one inertial sensor configured to detect and transmit motion signals representative of external motions applied to the portable medical device, wherein the control unit is configured to regulate the valve hold value as a function of the motion signals of the at least one inertial sensor to maintain the normally-open solenoid valve in the closed position.

Abstract: A method, including: receiving observation data from one or more data-capturing devices, the observation data representing a presence of an individual; processing the observation data to generate identity data representing the identity of the individual, and to detect at least one physiological characteristic or behavioural characteristic of the individual; retrieving behavioural profile data of the individual based on the identity data; and comparing the detected characteristic to at least one expected characteristic represented by the behavioural profile data of the individual to identify an abnormality of the individual.

Abstract: A doctor health monitoring system based on a medical apparatus includes the medical apparatus (1), a detection system (2), a control system (3) and an artificial intelligence system (14). The detection system (2) is configured to detect health indicators of doctors and send the detected health indicators to the control system (3). The control system (3) and the artificial intelligence system (14) are integrated within the medical apparatus (1). The control system (3) is configured to send the detected health indicators from the detection system to a display device (11) for display. The artificial intelligence system (14) is configured to analyze the detected health indicators in the cloud server (12) for obtaining a diagnostic accuracy of the detected health indicators and a physical health status of the doctors. The detection system (2) capable of detecting the health indicators of the doctors is connected with the medical apparatus (1).

Abstract: The present invention is directed to a wearable system wherein elements of the system, including various sensors adapted to detect biometric and other data and/or to deliver drugs, are positioned proximal to, on the ear or in the ear canal of a person. In embodiments of the invention, elements of the system are positioned on the ear or in the ear canal for extended periods of time. For example, an element of the system may be positioned on the tympanic membrane of a user and left there overnight, for multiple days, months, or years. Because of the position and longevity of the system elements in the ear canal, the present invention has many advantages over prior wearable biometric and drug delivery devices.

Abstract: Devices and methods are provided herein for monitoring tissue condition. A device as described herein may comprise a base layer configured to attach or encompass a portion of the subject's body in proximity to the target site; a plurality of light emitting diodes (LEDs) coupled to the base layer corresponding to one or more predetermined locations on the portion of the subject's body, wherein the plurality of LEDs is configured to emit light signals at the one or more predetermined locations penetrating beneath the skin of the subject to the target site; and a plurality of photodiodes configured to receive reflected light signals associated with the target site, wherein the reflected light signals are analyzed to determine a plurality of physiological parameters comprising at least volumetric blood flow through, at, or in proximity to the target site, and wherein the plurality of physiological parameters is used to monitor a state of the target site.

Abstract: Provided is a technology for measuring a user's blood pressure by using light sources, in which the blood pressure measuring apparatus includes: a light emitter configured to emit one or more lights having different penetration characteristics toward a user; a light receiver configured to receive the lights that have penetrated through the user, and acquire photo-plethysmography (PPG) signals from the received lights; and a blood pressure measurer configured to measure a phase difference between the acquired PPG signals, and measure a blood pressure based on the measured phase difference.

Abstract: Provided is a blood pressure measurement device including a curler including a cover portion that fixes a device body to a hand back side of the wrist, a pressing cuff including a first bag-like structure and a first flow path body which is integrally formed with the first bag-like structure by joining two sheet members forming the first bag-like structure facing the curler and is fluidly connecting a pump and the first bag-like structure, a sensing cuff including a second bag-like structure and a second flow path body which is integrally formed with the second bag-like structure by joining two sheet members forming the second bag-like structure and is including one end disposed on the wrist side of the cover portion, and a tensile cuff including a third bag-like structure.