283results about "Diagnostics using pressure" patented technology

An apparatus for treating or preventing a valvular disease, said apparatus comprising : - a ultrasound probe (2) located externally to a heart (H) of patient ( P), able to produce ultrasound waves focused inside said heart and suitable to generate, at a focal spot, a pressure sufficient to result in cavitation, - an imaging device (4) for mapping in real time a treatment region (C) of a cardiac valve of the patient, said treatment region comprising at least one leaflet of the cardiac valve, - a controller (5, 7, 8 ) configured for driving the ultrasound probe to emit a sequence of focused ultrasound waves, the controller being further configured for steering the focused ultrasound waves so as to scan the entire treatment region to soften the tissues of the treatment region. A method for treating or preventing valvular disease, carried out using said apparatus.

The present invention relates to un system (10) for electrical stimulation of a subject, comprising: a sensing device (1) configured to detect mechanical and thermal information and to transmit them to a control unit (2), such control unit (2) in which a first algorithm associated to a first neurophysiological model capable of reproducing the behaviour of the subject's mechanoreceptors, a second algorithm associated with a second neurophysiological model capable of reproducing the behaviour of the subject's nociceptors, and a third algorithm associated with a third neurophysiological model capable of reproducing the behaviour of the subject's thermoreceptors are stored; the control unit (2) being configured to determine generation frequencies associated to different types of electrical stimulation waves, which relate to the different pieces of information which can be detected by the sensing device (1), and to transmit them to an electrical stimulator (3); such electrical stimulator (3), configured to generate and send the stimulation waves to an electrical stimulation interface (4) configured to deliver them to a subject.

The invention discloses a spine tactile sensing system and method based on a multi-modal sensor, and the method comprises the steps: obtaining an original tactile signal, carrying out the preprocessing of the original tactile signal, carrying out the feature extraction based on the preprocessed original tactile signal, and obtaining a spatial distribution feature and a time dynamic feature; on the basis of tail end coordinates collected by forward kinematics of the tail end of the mechanical arm, space mapping of the tactile signals and the spine anatomical structure is constructed, and anatomical position features are obtained on the basis of the preprocessed original tactile signals and the space mapping; constructing task-oriented feature vectors based on the spatial distribution features, the anatomical position features and the time dynamic features, wherein the task-oriented feature vectors comprise a sliding state recognition feature vector and a spine ordinal number positioning feature vector; and constructing a multi-stage adaptive evolution hidden Markov model, and realizing spine ordinal number positioning in combination with the task-oriented feature vector. According to the method, through multi-dimensional feature fusion and dynamic model adjustment, anatomical prior knowledge and real-time tactile signals are combined, and spine segments are accurately recognized.

A diagnostic system includes one or more support surfaces, on which a person to be examined can be positioned. To be able to make a diagnosis without specialist staff, electrodes are provided to be arranged on various regions of the support surface, particular on leg regions, on arm regions, on an upper body region and / or on a neck region. These electrodes are at least partly embodied as electrode pairs, wherein each electrode pair has a feed electrode and / or a measurement electrode. The feed electrode is arranged distally relative to the measurement electrode. A device is provided for feeding an electric current between the feed electrodes and the diagnostic system is configured to measure a voltage drop between the measurement electrodes in order to be able to determine impedances of body regions of a person located on the diagnostic system.

The embodiment of the invention provides a diabetic foot screening device, and relates to the field of foot inspection equipment. The diabetic foot screening device comprises a base, two detection plates, two needling assemblies and a driving mechanism, the interior of the base is hollow, the detection plates are symmetrically arranged on the upper surface of the base, a plurality of needle holes are formed in the detection plates, the needling assemblies are symmetrically arranged on the upper surface of the base, a plurality of needle holes are formed in the detection plates, and the needling assemblies are symmetrically arranged on the upper surface of the base. The two needling assemblies are installed in the inner cavity of the base respectively, the two needling assemblies correspond to the two detection plates in position respectively, and the driving mechanism is installed in the inner cavity of the base. During use, acupuncture detection can be sequentially performed on the feet of a user, a patient can clearly perceive the positions of the painful feet without changing the feet, and convenience and rapidness are achieved; meanwhile, step-by-step pressure application is facilitated, and the patient feels time; the pressure acupuncture depth can be visually observed, and acupuncture depth data when the patient perceives the pain sense can be rapidly obtained.

Disclosed herein are systems and methods for classifying a tympanic membrane by using a classifier. The classifier is a machine learning algorithm. A method for classifying a tympanic membrane includes steps of: receiving, from an interrogation system, one or more datasets relating to the tympanic membrane; determining a set of parameters from the one or more datasets, wherein at least one parameter of the set of parameters is related to a dynamic property or a static position of the tympanic membrane; and outputting a classification of the tympanic membrane based on a classifier model derived from the set of parameters. The classification comprises one or more of a state, a condition, or a mobility metric of the tympanic membrane.

A wearable ring-shaped penile erection hardness measuring device and a method of measuring penile erection hardness are provided in the present application. The wearable ring-shaped penile erection hardness measuring device is configured to measure a hardness value of a penis to be tested, and includes an elastic ring-shaped body, an electronic component accommodating portion, and a processing unit. The elastic ring-shaped body can be worn on the penis to be tested, and includes a sensing portion, and a non-sensing portion connected to the sensing portion. The sensing portion includes an inner layer, an outer layer, a sensing protrusion, a thin film sensing element, and an accommodating space, and is configured to measure an applying force value from the penis to be tested. The electronic component accommodating portion is connected to the elastic ring-shaped body. The processing unit is used to convert the applying force value into the hardness value.

The invention discloses a bimodal pressure sensor array and device.The bimodal pressure sensor array comprises a piezoelectric actuator, an elastic piezoresistive substrate array and a pressure sensor unit which are arranged from inside to outside, and the pressure sensor unit comprises a piezoelectric film array layer; the pressure measurement is realized based on the piezoelectric response of the piezoelectric film array layer and the vibration of the piezoelectric actuator; based on the piezoelectric response of the piezoelectric film array layer, the vibration of the piezoelectric actuator and the deformation of the elastic piezoresistive substrate array, the direction and angle measurement is realized. Pressure measurement and bending angle measurement can be simultaneously realized on a single device, and the unique dual-function sensing technology has huge application potential in the medical field.

The invention relates to a flexible sensor, a muscle tension detection device and a detection method thereof. The flexible sensor comprises a sensor main body, a force sensitive layer and a probe, wherein the sensor main body is prepared from a soft material; the lower end of the probe is used for abutting against a target muscle part, and the upper end abuts against the lower end of the middle of the sensor body. The edge of the sensor main body is used for being fixed on the skin beside a target muscle part so as to enable the probe to be tightly propped against the target muscle part; the force-sensitive layer is arranged at the upper end of the middle of the sensor body. The probe goes deep into the skin and is close to the target muscle position, when the target muscle tension of the measuring part changes, the probe position, namely the probe probing depth, changes, the deformation of the upper force sensitive layer changes, the deformation of the force sensitive layer can be output, the strain of the force sensitive layer can be obtained through calculation, and then the modulus of the muscle is calculated. The real-time data of the muscle tension is obtained, and the accuracy of muscle tension detection is improved by shortening a force conduction path and enhancing the signal capturing efficiency.

A system includes a first device having a handle, a head coupled to the handle, a bumper supported by a first end of the head and adapted to be used to strike a patient tendon, a force sensor coupled to the bumper and adapted to generate force data in response to force encountered by the bumper and to generate force data, a first accelerometer coupled to generate head acceleration data in response to movement of the head, and first circuitry to capture the force data and acceleration data. The system may further include second device having a housing adapted to be coupled to the patient limb, a second accelerometer supported by the housing to generate limb acceleration data, and second circuitry to capture the acceleration data.

A penis measurement system and method, wherein the system includes a user device and a penis measurement device. An external soft casing encases a main shell of the penis measurement device. When at least one strap of the external soft casing is strapped on a penis, the external soft casing fixes the main shell to be on top of the penis, allowing a detection airbag protruding from the main shell to press down onto the penis with a down-pressing pressure. The detection airbag deforms and presses onto a sensor chip in the main shell. A processing unit receives a pressure sensor signal from the sensor chip and a gyroscope signal from a gyroscope in the main shell, and accordingly outputs a hardness value and a gyroscope value to a user device through a communication unit. The system quantifies a hardness of the penis.

The invention relates to a device for measuring the vascular endothelium parameters and a method for processing the measurement signal, in order to determine the index of reactive hyperaemia as a result of vascular endothelial function. The device is characterised in that the air pump (PM) is connected by a pneumatic distributor (MP) to a exhaust valve (ZS) and by the first valve (Z1) to the first pressure cuff (M1), by the second valve (Z2) to the second pressure cuff (M2), by the third valve (Z3) to the third occlusion cuff (M3), and by the tank valve (ZZ) to an air tank (ZP), wherein the pneumatic distributor (MP) is provided with the third pressure sensor (CZ3), and the first differential pressure sensor (CZ1) is located between the air tank (ZP) and the first pressure cuff (M1 ), and the second differential pressure sensor (CZ2) is located between the air tank (ZP) and the second pressure cuff (M2), additionally the air pump (PM), the first differential pressure sensor (CZ1 ), the second differential pressure sensor (CZ2), and the third pressure sensor (CZ3), as well as the first, second, and third, exhaust valve, and tank valve (Z1, Z2, Z3, ZS, ZZ) are connected to the controller (K). The application relates also to a method for processing the measurement signal.

The disclosure relates to, in part, a method of diagnosing whether a patient is afflicted with attention-deficit / hyperactivity disorder (ADHD) and / or selecting ADHD treatment for a patient afflicted with ADHD and / or monitoring response of ADHD symptoms in patient to an ADHD treatment.

The invention discloses a soft tissue assessment method and device implemented based on a massage robot. The method comprises the steps that the massage robot is controlled to conduct finger pressure testing and finger kneading testing on different soft tissues in a target area; obtaining the massage strength and height of the massage fingers in the test process, and forming a strength-height curve, a strength-time curve and a height-time curve; respectively extracting curve characteristic values according to the two curves; comprise wave crest and wave trough difference values, waveforms, tangent slopes, secant slopes, frequency distribution and the like; directly carrying out hardness calculation by utilizing a formula or inputting original data into a hardness detection model constructed based on machine learning by utilizing the curve characteristic values extracted by the method, calculating hardness values of corresponding soft tissues according to the detection data, and classifying the hardness values; and integrating the classification result and the hardness value corresponding to the target area to form a soft tissue health assessment report.

Provided herein are system, devices, and methods for a pelvic floor rehabilitation device. The rehabilitation device includes a handle for holding and manipulating the pelvic floor rehabilitation device, a controller to receive instructions and to control operation of the pelvic floor rehabilitation device, a shaft extending from the handle, wherein at least part of the shaft dilates based on input from the controller, at least one sensor for collecting data during operation of the pelvic floor rehabilitation device, and at least one system from the group of an electromyography system, an ultrasound system, a camera, and a vibration system.

The invention relates to a real-time intelligent pressure monitoring scar diagnosis and treatment device and system. The device comprises a pressure generation device, a rigid structure matched with the pressure generation device in shape and a flexible touch sensor located in the rigid structure. The inner layer of the flexible touch sensor is provided with a flexible conductive contact array, and the outer layer of the flexible touch sensor is provided with a flexible integrated electrode array. According to the device, the local pressure borne by the pathological scar is accurately measured at the micro-nano scale, adjustment can be carried out in real time according to the stress condition, treatment of the pathological scar is facilitated, pressure research on the pathological scar is also facilitated, the pathogenesis of the pathological scar is clarified, and the device has good application prospects.

The present invention relates to a device for measuring skin parameters, comprising: a shell structure defining an inner cavity and a first opening at the skin contact end of the inner cavity; a movable component movable relative to the shell structure and configured to protrude the skin contact end through the first opening of the shell structure when no external force is applied to move the movable component relative to the shell structure, the movable component also including a second opening; an optical sensing unit for performing a first skin parameter measurement when the device is in contact with the skin surface, the optical sensing unit being arranged in the inner cavity of the shell structure and including a lighting unit and an imaging unit, the lighting unit being used to illuminate the skin surface by emitting light through the second opening of the movable component, the imaging unit being used to receive light reflected by the illuminated skin surface; and an electrical sensing unit for measuring a second skin parameter, wherein the electrical sensing unit is arranged at a front end portion of the movable component defining the second opening.

The present invention relates to a system and method for monitoring blood pressure with a powered linear actuator. A tissue property sensing system includes a sensing assembly that is movable along a drive screw and includes an outer shaft, an anvil, a central driver, a piston, and a tension spring. The piston includes a distal arm having a distal portion and a head extending from the distal portion. The piston is movable within the outer shaft to move the head relative to the anvil between an open configuration and a closed configuration, wherein in the closed configuration, the head of the piston and the anvil are positioned to clamp tissue and block blood flow in the tissue. The tension spring is coupled to the central driver and the piston to urge the piston toward the central driver and the head of the piston toward the anvil.

The invention relates to a measuring device intended for being placed in contact with a tissue and a method for analysing the measured tissue data. The invention relates to a measuring device (D) intended for being placed in contact with a tissue (T), and comprising an indenter (1) configured to cause a deformation of the tissue (T), a strain gauge (3) configured to measure a force of resistance of the tissue (T) to the deformation caused by the indenter (1); and a position sensor (5) configured to measure an indentation depth representative of a movement of the indenter (1). The invention also relates to a method for analysing tissue data relating to a tissue (T), the method being implemented by computer and comprising a step of associating (A1) a measurement of the indentation depth and a measurement of the force of resistance to the deformation corresponding to the indentation depth.

A physical method for regulating molecular transport in the extracellular space of the brain includes applying an external pressure to the brain tissue of an animal, and the rhythm of applying the external pressure is associated with the automaticity of the animal. A device for regulating molecular transport in the extracellular space of the brain includes a detection mechanism, a pressure mechanism, and a control mechanism. The detection mechanism is capable of detecting the automaticity of the animal. The pressure mechanism is capable of applying an external pressure to the brain tissue of the animal. The control mechanism is capable of controlling the pressure mechanism based on the detection result of the detection mechanism such that the rhythm of applying the external pressure of the pressure mechanism is associated with the automaticity of the animal. The method and device can effectively regulate molecular transport in the extracellular space of the brain.

To make it easy to visually recognize variation in a pulse interval without regard to an individual difference of the pulse interval by optimizing the resolution of a display area indicating the pulse interval, in a measurement apparatus capable of detecting pulses.SOLUTION: A biological information measurement device comprises: pulse acquisition means which detects a user's pulse; pulse interval calculation means which calculates a pulse interval between one beat and the beat just prior to the beat based on the pulse; display means which displays a level indicator visually indicating the pulse interval; and a display resolution determination unit which uses information of the pulse interval to determine the minimum value and the maximum value of the pulse interval indicated by the level indicator.SELECTED DRAWING: Figure 1

A driver for transperineal magnetic resonance elastography provides a body harness stabilizing a mechanical actuator against a body reference point to provide improved imaging. The driver may employ a polymer bellows for mechanical simplicity and low cost.

The invention relates to a method for providing guidance data for positioning a region of interest, an X-ray source and an X-ray detector of a subject, the method comprising the steps of acquiring (S10) current positioning data of at least one tangible bony landmark of the region of interest from a measurement device, acquiring (S11) current positioning data of the X-ray source and the X-ray detector by a processor, determining (S12) guidance data for positioning the region of interest, the X-ray source and the X-ray detector by utilizing a parametric 3D model configured to describe a pose of the region of interest, determining the acquired current positioning data of the at least one tangible bony landmark of the X-ray source and the X-ray detector, and providing (S13) the guidance data by the processor.

To manage medical device equipment by online magnetic calibration of a catheter.SOLUTION: A method for calibrating a medical device is provided. The method is implemented by a calibration engine executed by one or more processors. The method includes capturing one or more voltage measurements by one or more components of a catheter, estimating calibration data based on the one or more voltage measurements, and outputting the calibration data to the catheter.SELECTED DRAWING: Figure 1

The invention relates to a handheld integrated skeletal muscle function evaluation system and method and electronic equipment, and the system comprises a handheld host which comprises a handheld body, a contact end and an indentation end, and is used for collecting at least one of a contact force signal, a joint angle signal and an indentation load signal which are acted on the handheld host by a user; the measuring host is in communication connection with the handheld host, and the measuring host measures at least one of the local mechanical property of the human skeletal muscle, the relation between the passive stress and the joint angle and the active force generation capacity according to at least one of the contact force signal, the joint angle signal and the indentation load signal. Therefore, the problems that results are difficult to decouple, the interpretability is poor, information of whole joints and local tissues cannot be taken into consideration, biomechanical properties and states of skeletal muscles are difficult to comprehensively reflect, laboratory-level equipment is high in cost, the process is complex, bedside application is difficult and the like due to the fact that indexes are single, different devices are needed and the influence of operators is large in the prior art are solved.

The invention comprises a device and method to estimate the elasticity of soft elastic solids from surface wave measurements. The method is non-destructive, reliable and repeatable. The final device is low-cost and portable. It is based in audio-frequency shear wave propagation in elastic soft solids. Within this frequency range, shear wavelength is centimeter sized. Thus, the experimental data is usually collected in the near-field of the source. Therefore, an inversion algorithm taking into account near-field effects was developed for use with the device. Example applications are shown in beef samples, tissue mimicking materials and in vivo skeletal muscle of healthy volunteers

According to one aspect, a computer-implemented method for determining tissue properties of a body part is provided, the method comprising the steps of controlling a shell cuff device to apply a plurality of different pressures to the body part, the shell cuff device at least partially surrounding the body part, the shell cuff device having a rigid shell portion disposed at least partially around the body part and an inflatable cuff surrounding the rigid shell portion that inflates and / or deflates to apply a plurality of different pressures to the body part via the rigid shell portion, obtaining radial measurements of a change in radius of the body part as the plurality of different pressures are applied to the body part, obtaining pressure measurements of the different pressures applied to the body part, and determining tissue properties of the body part from the radial and pressure measurements.

An in-vivo testing device is disclosed for dynamically measuring the mechanical properties of skin. The device includes a horizontal reciprocating tensile stress-strain detection unit configured to contact the skin surface and acquire displacement and tensile force data, wherein the detection unit comprises at least two contact heads. A driving unit, equipped with a motor capable of outputting reciprocating linear motion perpendicular to the skin surface, is provided to drive the contact heads. A reversing unit converts the perpendicular reciprocating linear motion into a horizontal reciprocating tensile motion of the contact heads relative to the skin surface. The reversing unit includes at least one right-angle reversing lever connecting the driving unit and the detection unit. The disclosed device enables reliable evaluation of the dynamic viscoelastic properties of skin in a non-destructive manner, thereby providing accurate and repeatable characterization of skin biomechanics under in-vivo conditions.

To provide a computer program capable of determining a vascular disease of legs; and to determine an information output method and an information output device.SOLUTION: A computer program acquires measurement information on the state of legs of a human measured by a sensor device, determines a risk of arterial and venous diseases of the legs based on the acquired measurement information, and outputs information on the determined risk of arterial and venous diseases of the legs.SELECTED DRAWING: Figure 1