123results about "Diagnostics using pressure" patented technology

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 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 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.

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 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 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.

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.

Force application apparatus 120 comprising means to receive position and force data, means to apply force to part of a human body, and means to control the application of force based on the received d

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 surgical clamp for providing a stable mechanical grasp and stabilisation of bone during an orthopaedic surgical procedure, comprising: a first arm comprising: an extended section comprising a mount at the distal end thereof; and a first jaw portion located at the distal end of the first arm; a second arm comprising: a fastening platform located at the proximal end of the second arm; and a second jaw portion located at the distal end of the second arm; engagement means comprising a bolt to engage the first arm with the second arm about a pivot point formed by the engagement means to provide relative rotation of the first and second arms between: an open configuration whereby first jaw portion and second jaw portion are urged apart; and a clamped configuration whereby first jaw portion and second jaw portion are urged into clamping engagement with the patient's bone in use during the surgical procedure; a fastening component comprising a fastening bolt and a fastening nut, adapted to engage the first and second arm into a locked clamped configuration about the bone of a patient during the surgical procedure; and a handle adapted to be gripped by a surgical assistance for stabilisation of the patient's joint or bone during the surgical procedure.

Described herein are devices, systems, and methods relating to monitoring the elasticity of soft biological tissues, for example, in the gastrointestinal tract. Described herein are embodiments of a wirelessly actuated palpation mechanism integrated into a swallowable capsule device, offering in situ tissue elasticity measurement with minimal invasiveness. Such approach can employ a magnetic soft cantilever beam actuated by external magnetic fields to gently press against soft tissue. Mechanical stress and strain can be monitored by an onboard magnetic sensor and a strain gauge, allowing for accurate assessment of tissue elasticity. Additionally, wireless modules utilizing Bluetooth Low Energy and powered by a battery can facilitate real-time communication. The device and system operates under external magnetic field control, which can move freely over soft tissues during examinations and palpate suspicious areas

The invention is related to a method for providing guidance data (30, 41) for positioning a region of interest (20, 31, 41, 56) of a subject (54), an X-ray source (52), and an X-ray detector (21, 34, 53). The method comprises: obtaining, by a processor (11), current positioning data of at least one palpable bony landmark (23, 33) derived from a palpation; obtaining current positioning data of the X-ray source (52) and of the X-ray detector (21, 34, 53) (S20); determining guidance data (30, 41) for positioning the region of interest (20, 31, 41, 56), the X-ray source (52) and the X-ray detector (21, 34, 53) and providing, by the processor (11), the guidance data (30, 41) (S40).

A system for measuring the mechanical impedance of a patient's respiratory system during spontaneous respiratory activity characterised in that it comprises a fan, a motor driving said fan; said motor and said fan are placed inside a cavity; said cavity is divided into two sub-cavities separated from each other so as to prevent the passage of air, one containing the motor and the other containing the fan and comprising an initial end and a terminal end, both of which have access to the outside.

The present invention relates to a method and apparatus for measuring the surface viscoelasticity of biological tissue. The method includes: step S1, driving the surface of the biological tissue in the direction normal to the surface of the surface to move it to a certain displacement along the normal and then holding it; step S2, using a sensor to measure the time-dependent mechanical response of the surface of the biological tissue during the execution of step S1; and step S3, outputting viscoelastic characteristic data of the surface of the biological tissue by a processing module in accordance with the mechanical response acquired by the sensor. The measurement method of the present invention is intended to more scientifically and reliably detect the surface viscoelasticity of biological tissue, particularly human skin.

The present application relates to a kind of skin flap massager capable of detecting edema, including support, support is provided with two parallel mounting plates, mounting plate is equipped with slide rail, fixed seat is slidably installed on slide rail, each mounting plate is fixedly provided with eye ring;At least one massage device is installed on fixed seat;Massage device includes lead screw motor, the body of lead screw motor is fixed on fixed seat, vertical hole is vertically provided on fixed seat, the lead screw of lead screw motor is connected with massage head after passing through vertical hole, pressure sensor is arranged at the bottom of massage head;Pressure sensor and lead screw motor are connected with microprocessor, microprocessor drives lead screw motor to rotate and records lead screw motor rotation data, microprocessor is provided with edema detection process and massage process, detects skin flap edema and massages skin flap;Microprocessor controls the motion frequency of massage process according to instruction.The device detects the edema of skin flap after bandaging, and can massage skin flap simultaneously.

An apparatus for estimating bio-information according to an embodiment of the present disclosure includes a processor configured to obtain spectra from an object, obtain a component produced based on a change in pressure applied to the object, correct the spectra based on the obtained component produced based on the change in pressure, and estimate bio-information of the object based on the corrected spectra.

A wearable device (1), comprising a plurality of emitters (2) arranged on a carrier (4), and an object intake (5) is provided. Each emitter (2) is configured to emit electromagnetic radiation towards the object intake (5), the emitters (2) are distributed around the object intake (5) and the carrier (4) is arranged on the side of the emitters (2) facing away from the object intake (5). The wearable device (1) is configured to perform detection of a movement of an object (10) arranged in the object intake (5) and / or tactile sensing. At least one emitter can be a micro-LED. Furthermore, a method for operating a wearable device is provided.

The present application relates to the field of elastography technologies, and in particular, to an elastography method, apparatus and device, and a storage medium. The method includes: acquiring an elastography area of a to-be-detected tissue and a target pressure range of the to-be-detected tissue; determining a detection position where an elasticity detection probe is located when performing elasticity detection in the elastography area; performing the elasticity detection in the elastography area for a plurality of times based on the detection position and a plurality of pressure values within the target pressure range, to acquire a plurality of elastography results; and fusing the plurality of elastography results to determine a target elastography result of the to-be-detected tissue.

The invention discloses a human subcutaneous depressed edema measuring device and method, and belongs to the field of edema measurement. The device comprises a pressure sensor, a camera, a support, a light supplementing lamp and a computer. The measuring method comprises the following steps: fixing the camera on the bracket, adjusting the position and the angle, turning on the light supplementing lamp, and making a proper mark on the skin beside an area to be pressed; vertically pressing the edema part by using a pressure sensor, keeping a specific pressure value for a period of time, shooting videos of pressing and skin recovery processes by using a camera, and transmitting the videos to a cloud end; a video file is downloaded from the cloud to a computer, the video is analyzed through image processing, the time for complete recovery of the recess is determined according to the change of the recess area features, and the edema degree is quantified according to the recovery time. The method is easy and convenient to operate and low in cost, and objective, quantitative and repeatable measurement of the recovery time of the depressed edema is achieved.

This invention relates to an automated blood gas sampling device and its positioning method based on vision and pressure sensing, belonging to the field of medical device technology, and solves the problems of low efficiency and poor accuracy in arterial blood gas collection in existing technologies. This invention provides an automated blood gas sampling device based on vision and pressure sensing, including a pressure-sensitive probe, a pressure-sensitive puncture needle assembly, a camera, and a needle insertion / retraction mechanism. The pressure-sensitive probe is used to sense the pulse to determine the location of the artery, the camera is used to monitor the blood return status of the pressure-sensitive puncture needle assembly, and the needle insertion / retraction mechanism performs needle insertion or withdrawal operations according to the blood return status and the location of the artery. This invention has pulse sensing capabilities in multiple directions, allowing the pressure-sensitive probe to sense pulses in multiple locations, improving the accuracy of arterial vessel positioning. Furthermore, by amplifying the signal from the pressure-sensitive unit, the precise positioning of the vessel is further achieved, improving the success rate of arterial blood gas puncture.

Certain aspects of the present disclosure provide systems (10) and methods (800) for real-time measurement of biomechanics at a plurality of ocular tissue locations. In some embodiments, the method (800) may be performed by a computer (30) in communication with an optical coherence tomography (OCT) device (15, 315). The method includes receiving an indication that stimulation is applied to ocular tissue (346) of a patient (42). The method further includes instructing the OCT device (15, 315) to emit a plurality of light beams (344, 560, 660) to a plurality of measurement locations (772) on the ocular tissue (346) at substantially the same time in response to the received indication. The method (800) also includes receiving OCT data for each of the plurality of measurement locations (772) from the OCT device (15, 315). The method (800) also includes measuring a tissue response to the stimulation at the plurality of measurement locations based on the OCT data.

To provide methods for monitoring biological movement in an efficient and effective manner.SOLUTION: The invention provides physiological movement detection with active sound generation for, e.g., an interactive audio device. The processor may evaluate, via a microphone coupled to the interactive audio device, a sensed audible verbal communication. The processor may control production, via a speaker coupled to the processor, of a sound signal in a user's vicinity. The processor may control, via a microphone coupled to the processor, sensing of a reflected sound signal. This reflected sound signal is a reflection of the generated sound signal from the vicinity of user. The processor may process the reflected sound, e.g., by a demodulation technique, to derive a physiological movement signal. The processor may generate, in response to the sensed audible verbal communication, an output based on an evaluation of the derived physiological movement signal.SELECTED DRAWING: Figure 1

The present disclosure relates to systems, apparatuses, and methods used in the control and delivery of a fluid flow, and more specifically, to pump systems for use in high magnetic fields. According to the present disclosure, it is appreciated that small conductive elements within pumps may generate Eddy currents when used in environments where a strong magnetic field is present. Thus, in one embodiment, an omnidirectional pump system is provided comprising two or more pumps having conductive elements in different orientations relative to the direction of the magnetic field. Also provided herein are medical apparatuses comprising the omnidirectional pump system and methods of using such systems.