Abstract: An intraoral surgical prop is manufactured entirely from two different Shore A hardness variants of the same high performance biocompatible sterilisable thermoplastic elastomer. It comprises an outer anatomically shaped compressible surgical prop body component (1) and an inner integrally-moulded, permanently attached, flexible and extensible tether and tether grip component (2, 3) with a thumb grip indentation (4) moulded such that it retains a permanently curved profile.

Abstract: The invention relates to medical devices for carrying out internal examination, such as laryngoscopes. The laryngoscope is provided with a camera element within a channel inside the blade.

Abstract: Methods and diagnostic tools are provided for assessing contrast sensitivity in a subject in the presence and absence of luminance noise by: i) presenting to the subject a series of scenes, each scene comprising at least a first target having a preselected level of contrast superimposed on a uniform background and a second target having a preselected level of contrast superimposed on a luminance noise background, wherein in each successively presented scene the first and second targets that are superimposed on the uniform background and on the luminance noise background, respectively, have contrast levels that are different from the contrast levels of the first and second targets superimposed on the uniform background and on the luminance noise background, respectively, in the previously presented scene; ii) monitoring responses by the subject to step i); and iii) evaluating the contrast sensitivity of the subject based on the monitored responses.

Abstract: The invention relates to a method for selecting a color filter intended to be worn by a subject in order to improve his visual performance for a given visual task to be realized in a given environment. According to the invention, said method comprises the steps of: —submitting said subject to a colored spatio-temporal visual stimulus adapted to evaluate said visual performance for said given visual task, said stimulus being designed so that its chromaticity may be modified; —evaluating the visual performance of the subject based on his visual perception of said visual stimulus, the chromaticity of the visual stimulus taking at least two distinct values, each chromaticity being uniform; and —selecting said color filter based on the results of said evaluation. The invention further proposes an optical article comprising such a color filter. The invention finally provides a system for selecting a color filter using said method.

Abstract: The present invention provides a method of diagnosing, or developing or monitoring a treatment regime for, an ocular condition in a subject based on detected physical behaviour in a tear film, or lack of tear film, in the subjects eye, the method comprising the steps of: (a) capturing from the subjects eye at least a first captured data set; (b) identifying at least a first comparative data set; (c) analysing the at least a first captured data set relative to the at least a first comparative data set, thereby detecting physical behaviour in the tear film; and (d) diagnosing, or developing or monitoring a treatment regime for, the ocular condition based on the detected physical behaviour of the tear film. Also provided are methods of selecting contact lenses, of evaluating the effects of wearing a contact lens, and of determining preferable wearing periods of contact lenses and rest periods from wearing contact lenses by subjects.

Abstract: Optical sensors, systems and methods of use thereof are provided. Aspects of the subject systems include a sensor having a sensing surface and a configuration that directs a first optical signal to interact with the sensing surface at a first incident angle, and directs a second optical signal to interact with the sensing surface at a second incident angle. The subject sensors, systems and methods find use, e.g., in the diagnosis of dry eye disease.

Abstract: Provided is a snapshot spectral domain optical coherence tomographer comprising a light source providing a plurality of beamlets; a beam splitter, splitting the plurality of beamlets into a reference arm and a sample arm; a first optical system that projects the sample arm onto multiple locations of a sample; a second optical system for collection of a plurality of reflected sample beamlets; a third optical system projecting the reference arm to a reflecting surface and receiving a plurality of reflected reference beamlets; a parallel interferometer that provides a plurality of interferograms from each of the plurality of sample beamlets with each of the plurality of reference beamlets; an optical image mapper configured to spatially separate the plurality of interferograms; a spectrometer configured to disperse each of the interferograms into its respective spectral components and project each interferogram in parallel; and a photodetector providing photon quantification.

Abstract: A method of screening a pupil of a subject to determine whether the pupil reflex resembles a canonical pupil reflex is disclosed. The method comprises the steps of stimulating the pupil with a stimulus source, such as a pupilometer and determining whether one of various pupillary response conditions is met.

Abstract: A visual function detection apparatus includes: a display controller that causes an image for determination to be displayed on a display screen of a display unit; a gazing point detector that detects a position of a gazing point of the test subject observing the display screen; a positional relation detector that detects a positional relation between a position of the image for determination on the display screen and the position of the gazing point; and a visual function detector that detects a visual function of the test subject based on the positional relation.

Abstract: A system and method for ophthalmic surgery in which a light field camera is used to capture a digital image of the surgical field including the eye. The digital image is used to create image information and directional information, which is then used to from a three dimensional (3D) image with motion parallax.

Abstract: Aspects relate to a portable device that may be used to identify a critical intensity and an anaerobic work capacity of an individual. The device may utilize muscle oxygen sensor data, speed data, or power data. The device may utilize data from multiple exercise sessions, or may utilize data from a single exercise session. The device may additionally estimate a critical intensity from a previous race time input from a user.

Abstract: A mobile health device includes a sensor that monitors values of a health metric of a person, a control component that controls the device to perform actions as part of providing a health service, and components of the device that receive the control signal and perform an action to provide the health service based on the control signal. The components include user output components for producing sound and/or displaying information and where providing the health service includes playing information as sound, displaying information as text, displaying information as motion video, and/or displaying information still images. The control component includes an input that receives audio signals corresponding to the monitored values of the health metric and produces a control signal based on information about the person, including the monitored values of the health metric of the person. The mobile health device may also include a network interface component.

Abstract: A remote interface system according to some embodiments includes one or more patient monitoring devices having one or more sensors for patient monitoring, one or more first processors to receive information from the sensors and generate patient data based thereon, a web server, a first communication system, and a first screen to display a representation of at least a first portion of the patient data, and a remote interface device including a second communication system, a second screen, one or more second processors, an application executed by the one or more second processors and configured to detect a presence of the first communication system, establish a communication link between the first and second communication systems, establish a reliable connection channel (e.g. secure websocket connection) with the web server, receive the patient data via the connection, and display at least a second portion of the patient data on the second screen.

Abstract: Methods for ultrasonic communications through biological tissue using ultrasonic pulses are disclosed. For example, methods for calculating a forward data generation rate and a forward transmission probability profile for ultrasonic communications through biological material are disclosed. The method may comprise measuring sets interference values corresponding to instants on a communication channel. First and second order moments may be calculated for each instant based on the measured interference values. An outage probability may be calculated for each set and the forward data generation rate and forward transmission probability profile may be calculated based on the outage probability value and other parameters and a threshold transmission rate, a transmission delay threshold, and a residual transmission error rate.

Abstract: Methods of fluid assessment and treatment, which may include measuring a quantitative relaxation time (T2) of a muscle of a patient to determine whether the patient is hypovolemic, euvolemic, or hypervolemic. Methods of treatment may include determining a first fluid status of a patient by measuring a first quantitative relaxation time (T2) of a muscle of the patient, and administering to the patient a fluid reduction treatment or a hydration treatment.

Abstract: The present disclosure relates to force reading device. The products are multi-sensor, meaning they operate using two or more independent sensors, and communicate weight distribution and force data to the user in real time. The weight-lifter/user is notified by a visual aid via mobile app display and/or LCD screen and verbal feedback. Through real-time data feedback, the user is able to correct their form/balance as needed, in efforts to center their body weight and/or more evenly distribute their limbs. This in turn allows for the collection of data on how one may perform exercises and job tasks, and also offers a real-time solution for preventing injury and increasing exercise/job task functionality.

Abstract: The disclosed apparatus, systems and methods relate to devices, systems and methods for intra-operative imaging.

Abstract: Exemplary apparatus, device, system and method can be provided for examining a sample, which can comprising and/or utilize an imaging device for obtaining an overview image of the sample. A measuring instrument can also be used for locally interrogating at least one property of the sample with a laser beam which emerges from an aperture. Additionally, a tracking arrangement/system/device can be utilized for determining the location on the sample which is currently being interrogated with the laser beam. Additionally, memory or any other electronic storage device can be utilized, in which the property interrogated with the laser beam can be associated with the determined location on the sample.

Abstract: The present disclosure provides a device for measuring the jugular venous pressure of a patient. The device comprises a body defining a longitudinal enclosure and having a window along a length of the longitudinal enclosure to allow light to exit the longitudinal enclosure, a beam generator comprising a moveable portion mounted within the longitudinal enclosure, the beam generator configured to generate a sheet of light along a plane perpendicular to a longitudinal direction and at an adjustable position along the longitudinal direction, and direct the sheet of light out the window, an adjustment mechanism for adjusting the position of the moveable portion of the beam generator relative to the body along the longitudinal direction, and, a readout indicating the position of the sheet of light along the longitudinal direction.

Abstract: Methods for estimating blood pressure values, and related blood pressure measurement systems, account for patient specific attributes. A method of estimating a blood pressure value of a patient includes receiving feature vector data corresponding to a pressure variation of a blood pressure cuff. The feature vector data is derived from physiological signals of the patient measured over the pressure variation of the blood pressure cuff. A first blood pressure value of the patient is estimated using a first algorithm that employs the feature vector data as input data.

Abstract: Methods and apparatus provide physiological movement detection, such as gesture, breathing, cardiac and/or gross motion, such as with sound, radio frequency and/or infrared generation, by electronic devices such as vehicular processing devices. The electronic device in a vehicle may, for example, be any of an audio entertainment system, a vehicle navigation system, and a semi-autonomous or autonomous vehicle operations control system. One or more processors of the device, may detect physiological movement by controlling producing sensing signal(s) in a cabin of a vehicle housing the electronic device. The processor(s) control sensing, with a sensor, reflected signal(s) from the cabin. The processor(s) derive a physiological movement signal with the sensing signal and reflected signal and generate an output based on an evaluation of the derived physiological movement signal.

Abstract: Approaches described herein can determine one or more breathing phase patterns over a period of time using audio data captured by at least one microphone. The audio data can include one or more snores. A breathing phase pattern included within the period of time can be determined based at least in part on sensor data captured by one or more sensors in the electronic device. A determination can be made that a first breathing phase pattern represented by the audio data and a second breathing phase pattern represented by the sensor data are correlated. A determination can be made that the first breathing phase pattern represented by the audio data and the second breathing phase pattern represented by the sensor data both correspond to a user wearing the electronic device.

Abstract: A medical data acquisition device comprising processing circuitry and one or more medical data acquisition sensors, the processing circuitry configured to: receive a plurality of continuous sections of physiological data acquired by at least one of the medical data acquisition sensors; analyze each received section of physiological data to determine a usability indicator indicating if the received section is usable for diagnosis of a medical condition of the patient or not; identify a subset of the continuous sections, wherein (a) the subset includes at least one of the sections associated with the respective usability indicator indicating that the received section is usable for diagnosis of the medical condition of the patient, (b) the subset does not include at least one of the sections associated with a respective usability indicator indicating that the received section is not usable for diagnosis; and send, to a remote medical practitioner workstation, the identified subset.

Abstract: A monitoring system includes an implantable intra-vascular support device for positioning against a vessel wall and an implantable sensor-actuator mounted to the support device. The sensor-actuator is drivable between a non-deployed position in which it is against the support device and a deployed position in which it is displaced away from the support device. Sensor signals are generated when in the deployed position. This system is able to monitor flow away from the edge of a vessel by deploying the sensor-actuator towards the center of the vessel. When flow monitoring does not need to take place, it can be non-deployed so that it does not present an occlusion to the flow.

Abstract: Methods for deriving and/or adjusting MRI strain measurements are described. Some methods include calculating a first set of strain measurements for each of a plurality of different segments of a heart over an entire single cardiac cycle from obtained MRI image data. Then, for each segment of the plurality of different segments, electronically identifying a peak train value and associated time point of the cardiac cycle in the first set of strain measurements; and electronically adjusting the first set of strain measurements at each time point of the cardiac cycle using the identified peak strain value as a reference peak strain value to thereby provide strain measurements that are adjusted relative to a defined time during the cardiac cycle irrespective of when signal acquisition of the obtained MRI image data was initiated during the cardiac cycle. Risk scores, contouring review, contraction pattern from strain measurements provided on a 3-D cardiac model are also disclosed.

Abstract: A method for determining an internal myocardial power of a heart, the method comprising non-invasively obtaining one or more first images that are indicative of a structure of the heart, non-invasively obtaining one or more second images that are indicative of a flow property of the heart, segmenting, based on the one or more first images, the blood pool and the myocardium of the heart, determining, based on the segmented 5 blood pool, the myocardium and the one or more second images, one or more mechanical parameters of the heart, and determining the internal myocardial power based on the one or more mechanical parameters.

Abstract: A scatterer measuring apparatus includes an irradiator that radiates phase-aligned light having a predetermined light intensity to a predetermined site of a living body from outside the living body toward an interior of the living body, a light intensity detector that detects the light intensity distribution of light emitted from the living body, and a controller that calculates a blood flow rate based on a temporal change in the light intensity distribution and calculates scatterer concentration in the living body based on the blood flow rate.

Abstract: The invention relates to a technique for examining blood flow patterns in the blood vessels of a patient (1), the technique having the following features: collecting raw data from a time- and space-resolved MRI phase contrast measurement of the cardiovascular system of a patient or parts thereof (1), or reading such data or data determined therefrom via an input interface (3), and calculating at least one primary variable which quantifies the blood flow pattern; carrying out multi-plane reconstructions on the basis of at least one calculated primary variable along a defined path (9) which reproduces the course of a blood vessel of the patient (1) to obtain a local distribution of the at least one primary variable in the vessel cross-section; and calculating and outputting at least one secondary variable which quantifies the blood flow pattern as a function of the position along the course of the vessel on the basis of the at least one primary variable after carrying out the multi-plane reconstructions.

Abstract: Blood pressure is estimated in a non-constraining manner continuously and in real time. A biological signal collected from a person's dorsal part is analyzed, vibration in the human body ascribable to a blood flow rate change in a period from the ventricular filling period to the isovolumetric systole is captured, and the state of fluctuation of an index indicating the state of the in vivo vibration is further captured. This fluctuation index correlates with a person's blood pressure. Therefore, it is possible to estimate whether the blood pressure is in a range indicating a normal-range blood pressure or in a range indicating a high blood pressure, only by having the person sit or lie supine on a surface provided with a biological signal measurement device to measure a biological signal in a non-constraining manner, so as to make the biological signal measurement device contiguous with the person's dorsal part.

Abstract: A first device comprises at least one amplifier. The at least one amplifier is configured to receive a plurality of sensor signals from a plurality of sensors. The at least one amplifier is configured to amplify at least two of the sensor signals to generate a plurality of amplified signals. Each of the amplified signals corresponds to one of the sensor signals. The first device comprises a plurality of modulators. Each of the modulators is configured to modulate one of the amplified signals to a distinct center frequency through employment of a Voltage Controlled Oscillator (VCO) to generate a modulated signal. The first device comprises an adder configured to create a composite signal. The composite signal comprises the modulated signal from each modulator. The composite signal is configured for transmission to a second device.

Abstract: Method and systems are provided for reliable, convenient, self-administered, and cost-effective determination of central venous pressure. The noninvasive method and apparatus use changes in transmural pressure to create detectable changes in peripheral venous vascular volume for the determination of central venous pressure. Transmural pressure changes can be manifested by intravascular or extravascular pressure changes. The system is noninvasive and uses optical measurements of venous volume in the presence of transmural pressure changes. The relationship between the transmural pressure change and the change in vascular venous volume is combined with anatomical measurements to determine the central venous pressure of the subject. Central venous pressure can be used to determine hemodynamic status of the subject to include fluid overload in the heart failure patient.

Abstract: The present disclosure relates to an image information generation method, a pulse wave measurement system and an electronic device. The method comprises: with respect to a target part, acquiring a first infrared image sequence, each infrared image in the first infrared image sequence including at least a vein pattern; by registering the vein pattern in each infrared image in the first infrared image sequence, correcting each infrared image in the first infrared image sequence, thereby obtaining the corrected first infrared image sequence; removing at least the vein regions from respective infrared images in the corrected first infrared image sequence, to obtain image information of remaining regions as image information for pulse wave measurement.

Abstract: Technologies and implementations for wearable healthcare devices are generally disclosed. An example method performed by a wrist-wearable device includes: detecting, by a sensor, a physiological parameter of a user; determining, by a processor based on the physiological parameter, that the user is experiencing atrial fibrillation (AF); outputting, by a display, a visual signal indicating that the user is experiencing the AF; and transmitting, by a transceiver to a first external computing device, a first wireless signal indicating that the user experienced the AF.

Abstract: The invention provides a nanoindentation pen in the form of a device for measurement of mechanical properties of a tissue in a subject, the device comprising a dumbbell comprising an elongated shaft, the shaft being affixed at a first end to a pen tip for contacting the tissue, the shaft being affixed at a second opposite end to a terminal member, a linear actuator, and one or more pressure sensors that are in physical communication with the terminal member, the pressure sensor(s) generating a signal that indicates a force exerted on the terminal member by the pen tip via the shaft. In some embodiments, the inventive device uses statics and mechanics to calculate the stiffness of a human vocal fold based on a known displacement and a measured force. The pen tip is able to reach most sides of the vocal fold, making it ideal for all types of examination purposes.

Abstract: Electrode carrier for electrophysiological measurements, including a flexible substrate, a plurality of contact pads attached to a substrate surface, wherein each contact pad includes conductive means for accommodating an electrode for electrophysiological measurement, first connecting means attached to the substrate for communicatively connecting the contact pads to a signal processing device. The first connecting means includes a plurality of conductive tracks on the substrate surface for electrically connecting the plurality of contact pads, wherein each conductive track corresponds to at least one contact pad. The substrate has at least two inextendible sections for accommodating the contact pads, wherein the sections interconnected by an extendible section. Each extendible section comprises at least one warpable member of flexible material. At least one of the warpable members accommodates at least one of the conductive tracks.

Abstract: A system is provided for displaying heart graphic information relating to sources and source locations of a heart disorder to assist in evaluation of the heart disorder. A heart graphic display system provides an intra-cardiogram similarity (“ICS”) graphic and a source location (“SL”) graphic. The ICS graphic includes a grid with the x-axis and y-axis representing patient cycles of a patient cardiogram with the intersections of the patient cycle identifiers indicating similarity between the patient cycles. The SL graphic provides a representation of a heart with source locations indicated. The source locations are identified based on similarity of a patient cycle to library cycles of a library cardiogram of a library of cardiograms.

Abstract: An implantable medical device comprises a sensing module configured to obtain electrical signals from one or more electrodes and a control module configured to process the electrical signals from the sensing module in accordance with a tachyarrhythmia detection algorithm to monitor for a tachyarrhythmia. The control module detects initiation of a pacing train delivered by a second implantable medical device, determines a type of the detected pacing train, and modifies the tachyarrhythmia detection algorithm based on the type of the detected pacing train.

Abstract: Techniques for determining whether a ventricular depolarization is a premature ventricular contraction (PVC) depolarization may include processing circuitry of a medical system identifying an interval from a maximum slope point to a minimum slope point for each of a plurality of ventricular depolarizations and, for each of the plurality of ventricular depolarizations as a current ventricular depolarization, determining that the intervals from the maximum slope point to the minimum slope point for the current ventricular depolarization, a preceding adjacent ventricular depolarization of the plurality of ventricular depolarizations, and a subsequent adjacent ventricular depolarization of the plurality of ventricular depolarizations satisfy one or more slope criteria. The processing circuitry determines that the current ventricular depolarization is a PVC depolarization based on the intervals from the maximum slope point to the minimum slope point satisfying the one or more slope criteria.

Abstract: Apparatuses and methods for non-invasively detecting and classifying transcranial electrical signals are disclosed herein. In an embodiment, system for detecting and interpreting transcranial electrical signals includes: a headset including a plurality of electrodes arranged for detection of the user's transcranial electrical signals; a display configured to display information to the user while the user wears the headset; and a control unit programmed to: (i) receive data relating to the transcranial electrical signals detected by the electrodes of the headset; (ii) create a data matrix with the received data; (iii) convert the data matrix into one or more user values; (iv) define a user output state based on the one or more user values; and (iv) cause alteration of an aspect of the display based on the user output state.

Abstract: A basket-type EP catheter is described. The EP catheter comprises a catheter proximal end that is electrically connected to a controller by an electrical cable having a single voltage-out (Vout) conductor and a catheter distal end supporting a distal connector that is detachably connectable to a basket-shaped configuration of a plurality of splines. Each spline supports an array of electrodes. By sampling the voltage signal on each of the plurality of electrodes sequentially or consecutively, only one Vout conductor is needed to transmit the voltage sample to the controller. In comparison to conventional EP catheters, this greatly reduces the number of conductors extending along the catheter shaft. The use of a Vout conductor is implemented by connecting a polling circuit or a “one-shot” circuit and a signal pass-transistor or transmission gate to each electrode.

Abstract: A sensor assembly is disclosed. The sensor assembly having a first conductor and a second conductor being separated by an insulator. The sensor assembly further has an aperture that is formed through the first conductor, the second conductor and the insulator, wherein formation of the aperture creates an electrical short circuit between the first conductor and the second conductor.

Abstract: A magnetic resonance imaging (MRI) device according to one embodiment is provided. The MRI device includes: a display configured to display a first image of an object; a controller configured to determine a signal region of the object based on the first image of the object; and a user input device configured to receive a user input of setting a region of interest (ROI) on the first image. When the set ROI is part of the signal region of the object, the controller is further configured to control the display to display guide information for preventing aliasing artifacts from occurring in a second image to be generated based on the set ROI.

Abstract: A maneuverable RF coil assembly, useful for being maneuvered at both positions: (i) over at least a portion of a neonate immobilized within a cradle at time of MR imaging; and (ii) below or aside the cradle when it is not required for imaging. The maneuverable RF coil assembly comprises at least one RF coil and maneuvering mechanism. The maneuvering mechanism comprises both: (i) a linear reciprocating mechanism for approaching or otherwise drawing away at least one coil to and from the neonate; and (ii) tilting mechanism for placing at least one coil away from the neonate.

Abstract: An apparatus for generating a magnetic field for tracking of an object can include a localized magnetic field generator that is configured to generate a magnetic field and to control the magnetic field in an area of interest and configured to control the magnetic field in a separate area. The separate area can be displaced from the area of interest and can include a magnetic field-disrupting component. The object can be located in the area of interest.

Abstract: An apparatus comprising at least two RIP measurement bands further comprises an electric power source arrangement, which excites simultaneously the at least two measurement bands with electric currents of different pseudo random variations, for making respiratory signals output by the at least two measurement bands unique. The apparatus also comprises a wireless transmitter arrangement, which transmits wirelessly respiratory information based on the respiratory signals output by the at least two measurement bands.

Abstract: Aspects of the present disclosure provide methods, apparatuses, and systems for dynamic starting rates for guided breathing. According to an aspect, a user's initial breathing metric is determined. A multiplier is then determined, where the multiplier varies as a function of the initial breathing metric within a range. The level of intensity of the multiplier may vary, and may be a dynamic feature based on the determination of the user's initial breathing metric. Once the multiplier is determined, the multiplier is applied to the user's initial breathing metric to determine a starting breathing metric for guided breathing. The starting breathing metric is slower than or equal to the user's initial breathing metric.

Abstract: The present disclosure relates to determining a corrected exhaled gas measurement during high flow respiratory therapy. Measuring exhaled gas concentration during high flow respiratory therapy is difficult and inaccurate due to a phenomenon known as flushing. The high flows delivered to the patient flush the dead space in the conducting airways, which causes a dilution effect that results in underestimated or overestimated exhaled gas measurement depending on the gas composition delivered by the high flow system. This can lead to incorrect clinical measurements and diagnoses. Various algorithms are disclosed herein to account for the dilution effect caused by flushing, allowing for the method of measuring gas concentrations to still be used accurately for clinical measurements.

Abstract: A walking training system includes a treadmill configured to prompt a trainee to walk, a camera system configured to image the trainee at an angle of view at which at least a part of a gait of the trainee walking on the treadmill is recognizable, a determination unit configured to determine whether abnormal walking occurs in the trainee based on a plurality of predetermined determination criteria, an image processing unit configured to clip, as a video clip, a video in a predetermined period including a timing when the determination unit determines that the abnormal walking occurs from a video captured by the camera system, and perform image processing to emphasize an abnormal part of the abnormal walking determined by the determination unit, and a display control unit configured to cause a display unit to display the video clip subjected to the image processing.

Abstract: Determining gait patterns and abnormalities of a user includes forming a plurality of point clouds corresponding to the user, each of the point clouds being three-dimensional coordinates of moving points, frame by frame, through a data capturing session, determining centroids of the point clouds, determining momentary walking velocities using estimates based on vectors connecting the centroids for adjacent frames captured during walking of the user, determining gait speed for the user based on the momentary walking velocities, determining at least one distribution of gait speeds for the user, and detecting gait abnormalities based on deviation of the gait speed from the at least one distribution of gait speeds. Detecting a plurality of point clouds may include using a tracking device to capture movements of the user. The tracking device may use radar and/or lidar. The system may determine a gait pattern of the user corresponding to routines of the user.

Abstract: A posture estimation device includes an acquisition part acquires information of angular velocities and accelerations from a plurality of sensors that detects angular velocities and accelerations and that are attached to a plurality of locations on an estimation object, a conversion part that converts information acquired by the acquisition part into information of a standard coordinate system from a sensor coordinate system, an integrating part that calculates an orientation of a reference area of the estimation object as a part of a posture of the estimation object by integrating the converted angular velocities, and a correction part, assuming a representative plane passing through a reference area included in the estimation object, corrects the converted angular velocities of the reference area so that a normal line of the representative plane and an orientation of the reference area calculated by the integrating part approaches to directions that are perpendicular to each other.