207results about "Diagnostics using pressure" patented technology

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.

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.

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 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.

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

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

A method of measuring tissue properties using a fluid line in fluid communication with a subcutaneous tissue includes applying a pressure profile or flow profile to the subcutaneous tissue via the fluid line, with the fluid line isolated from atmospheric pressure, measuring a pressure value or flow rate value over time in response to the applied pressure profile or applied flow profile, and calculating, using at least one processor, at least one of the following: time constant of pressure decay; fluidic resistance of tissue; permeability of tissue; mechanical compliance of tissue; osmotic pressure of interstitial fluid of tissue; capillary pressure in subcutaneous tissue; and ionic strength of interstitial fluid.

A method of measuring a biomechanical parameter of soft biological tissue is described. The method includes a pre-measurement process wherein an impulse applying device applies a pre-pressure to a surface of the tissue via an end portion contacting the tissue surface. While maintaining the pre-pressure, the device generates at least two impulses separated by a time interval, each impulse causing the end portion to impart to the tissue an action with certain parameters, each action inducing a response of the tissue. A value of a biomechanical parameter of the tissue is determined from each response induced. A determination is made as to whether the determined values of the biomechanical parameter are sufficiently similar to each other to indicate that the pre-pressure, the parameters of the end portion actions and the time interval are acceptable for use in a measurement process to be conducted on the surface of the tissue.

A glove that includes a set of electrocardiogram leads coupled to the glove and configured to record a 12-lead electrocardiogram by contacting a body of a user with the set of electrocardiogram leads. The set of electrocardiogram leads include precordial leads that contact a chest of the user and are positioned along a peripheral edge of the glove that connects a palmar side of the glove to a dorsal side of the glove. The set of electrocardiogram leads also includes a first arm lead that is configured to contact a first arm of the user and is positioned on the palmar side of the glove spaced apart from the peripheral edge. Additionally, the set of electrocardiogram leads includes a second arm lead that is configured to contact a second arm of the user and is positioned on the dorsal side of the glove spaced apart from the peripheral edge.

The present invention provides a method for determining a characteristic of a target area (15) of a material (10), the target area (15) being within a range of 100 μm 2 ~100mm 2 and the method comprises an exposure step comprising providing a liquid jet (20) to the target area (15), the liquid jet (20) having a jet speed selected from the range of 2 to 150 m / s, a measurement step comprising detecting deformations (16) of the material in the target area (15) and providing a related signal, and an analysis step comprising determining a characteristic of the target area (15) based on the related signal.

An apparatus and method for detecting, recording, measuring, and mapping the size, shape, and location of an injury to the sub-surface layers of a subject's skin or other soft tissue by using a capacitive tactile sensor to measure changes in tactile pressure of the skin or other tissue surface under investigation are described. The capacitive tactile sensor includes at least one exposure window; a substrate including a plurality of electrodes disposed within a housing; an insulating layer; a non-conductive compressible membrane covering positioned on the insulating layer, wherein at least a portion of the membrane is accessible via the exposure window; and a controller configured to calculate at least one parameter of the subject's tissue. A method of measuring a parameter of a subject's tissue and a method of performing a self-guided examination of a subject's tissue are also described.

A pulse oximeter includes a light emitting device that emits a first light and a second light, a light detecting device that outputs a first signal and a second signal respectively corresponding to an intensity of the first light and an intensity of the second light after interacting with a tissue of a subject, a processing device that calculates a pulsation rate of at least one of the first signal and the second signal, calculates a percutaneous arterial oxygen saturation of the subject, and estimates a capillary refill time of the tissue based on a time taken for at least one of the pulsation rate and the percutaneous arterial oxygen saturation, which change along with compression on the tissue, to return to a predetermined threshold range with respect to each value before the compression, and an output device that outputs information indicating the capillary refill time.

A medical device includes an elongated body configured to be introduced into a blood vessel and an expandable structure at a distal portion of the elongated body. The expandable structure includes a first layer having a first Shore D hardness, a second layer having a second Shore D hardness and positioned radially outward of the first layer, and a third layer having a third Shore D hardness and positioned radially outward of the first layer and the second layer. In some examples, the third Shore D hardness is less than or equal to the first Shore D hardness and less than the second Shore D hardness. The third layer can be configured to receive a stent and / or one or more sensors such that the stent and / or the one or more sensors are at least partially embedded in the third layer.

Apparatus and methods are described for detecting, documenting, measuring, and mapping the size, shape, and location of underlying lesions on the surface of skin or other soft tissue within a subject by measuring variations in tactile pressure on the surface of the skin or other tissue being investigated through the use of a capacitive tactile sensor. The capacitive tactile sensor includes a substrate having at least one exposed window and a plurality of electrodes disposed within a housing, an insulating layer, a non-conductive compressible membrane and covering positioned on the insulating layer, where at least a portion of the membrane is accessible through the exposed window, and a controller configured to calculate at least one parameter of the subject's tissue. Methods for measuring tissue parameters within a subject and for performing self-guided testing on the subject's tissue are also described.

To solve such a problem that it is not possible to effectively measure nocturnal erection without being affected by measurement.SOLUTION: A penis measurement system and method are provided. The system includes a user device and a penis measurement device. An external soft kit of the penis measurement device covers a sensing balloon on a body housing. When a strap of the external soft kit is tightened around the penis, the body housing is fixed above the root of the penis, thereby causing the sensing balloon to generate a downward pressure against the penis. A reactive force corresponding to the downward pressure on the penis presses the sensing balloon, thereby pressing a sensing chip inside the body housing. In response, a pressure sensing signal is generated. A processing unit calculates a hardness value on the basis of the pressure sensing signal and outputs it to the user device, thereby contributing to the quantification of hardness of the penis.SELECTED DRAWING: Figure 2

A wearable monitoring device for soft-tissue Young's modulus includes a pressure application mechanism, a contact radius sensor, a contact force sensor, and a wearable mechanism. The pressure application mechanism includes an indenter with a hemispherical contact surface. The contact radius sensor includes a flexible pressure sensing array disposed on the contact surface and configured to detect a pressure distribution along a height direction of the indenter. The contact radius sensor is configured to output a first electrical signal in response to a contact pressure when the contact surface contacts a measured soft tissue. The contact force sensor is disposed on the pressure application mechanism and configured to output a second electrical signal in response to the contact pressure provided by the pressure application mechanism when the contact surface contacts the measured soft tissue. The monitoring device can achieve accurate, continuous, and dynamic monitoring of the Young's modulus of soft tissues.

The present invention provides a device for measuring hair properties, comprising a first part (I) and a second part (II), between which a hair (H) is guided. The first part (I) comprises a measuring probe (MP), and the second part (II) is arranged to deform the hair (H) against the measuring probe (MP). When the device is moved along the hair (H), the measuring probe (MP) is subjected to a friction force generated by the hair (H) being guided along the measuring probe (MP) and a deformation force (DF) generated by the hair (H) being deformed by the second part (II) against the measuring probe (MP). Advantageously, the second part (II) comprises a pressure element (PB, S) for pressing the hair (H) against the measuring probe (MP) to compress the hair (H). In an alternative embodiment, the second part (II) comprises: an alignment element (AE) located on opposite sides of the measuring probe (MP) for bending the hair (H) on the measuring probe (MP), and a guiding element (G) for reducing the influence of the angle at which the device is applied to the hair (H) on the friction force and / or the deformation force, while the measuring probe (MP) is mounted on a load cell module (LC‑X, LC‑Y) for measuring the load in two-dimensional space to measure the friction force and deformation force respectively.