758results about "Strain gauge" patented technology

A medical device operating as a stylet is described. The medical device can include an insulating layer (or sheath) encapsulating both a multi-core optical fiber and a conductive medium. The optical fiber can include a cladding and a plurality of core fibers spatially arranged within the cladding. Each of the core fibers can include a plurality of sensors distributed along a longitudinal length of that corresponding core fiber and each of these sensors can be configured to: (i) reflect a light signal of a different spectral width based on received incident light, and (ii) change a characteristic of the reflected light signal for use in determining a physical state of the multi-core optical fiber. The conductive medium can provide a pathway for electrical signals detected at a distal portion of the conductive medium. The conductive medium may be concentric to the cladding, but separate and adjust thereto.

Optical-fiber stylet holders and methods for holding optical-fiber stylets in position in catheters or the like prevent breakage of optical fibers in the optical-fiber stylets and maintain functionality of the optical-fiber stylets. The holding of optical-fiber stylets in position in catheters or the like can be important for maintaining distal tips of intravascularly delivered optical-fiber stylets in their target anatomical locations during procedures.

The embodiment of the invention provides a detection device, electronic equipment and a control method thereof, relates to the technical field of data detection, and aims to solve the problem that equipment with a health sign detection function is large in size. The detection device comprises a first circuit board, a light-emitting device, a photoelectric converter, a metal cover plate and a light-transmitting structure. The photoelectric converter and the light-emitting device are arranged on the same side of the first circuit board and are electrically connected with the first circuit board. The metal cover plate covers the first circuit board and is electrically connected with the first circuit board. The metal cover plate is provided with a first light through hole for exposing the light-emitting device and a second light through hole for exposing the photoelectric converter. The light-transmitting structure is filled in the first light-transmitting hole, the second light-transmitting hole and the accommodating cavity, wraps the light-emitting device and the photoelectric converter, and is connected with the light-emitting device, the photoelectric converter, the first circuit board and the metal cover plate to form an integrated structural member, so that the size of the detection device is reduced.

This invention is an article of clothing with electromyographic (EMG) sensors which measures body motion and / or muscle activity. This clothing can be a short-sleeve shirt or a pair of shorts, wherein the electromyographic (EMG) sensors are on the cuffs. The electromyographic (EMG) sensors can be modular; they can be removably attached to different locations in order to create a customized article of electromyographic clothing which optimally measures the muscle activity of a particular person or muscle activity during a particular sport. This clothing can also include bending-based motion sensors.

A system, apparatus and method directed to detecting damage to an optical fiber of a medical device. The optical fiber includes one or more core fibers each including a plurality of sensors configured to (i) reflect a light signal based on received incident light, and (ii) alter the reflected light signal for use in determining a physical state of the multi-core optical fiber. The system also includes a console having non-transitory computer-readable medium storing logic that, when executed, causes operations of providing a broadband incident light signal to the multi-core optical fiber, receiving reflected light signals, receiving reflected light signals of different spectral widths of the broadband incident light by one or more of the plurality of sensors, identifying at least one unexpected spectral width or a lack of an expected spectral width, and determining the damage has occurred to the optical fiber based on the identification.

The device includes a handle, a catheter, an end effector, and a deflection drive assembly. The end effector includes at least one electrode. The deflection drive assembly includes an input member, a translation assembly coupled to the end effector, and a rack and pinion assembly. The rack and pinion assembly is configured to drive the translation assembly to deflect the end effector away from the longitudinal axis at an angle, and is configured to convert rotational motion of the pinion from the input member into linear motion of the rack to either push the translation member distally or pull it proximally, or convert linear motion of the rack from the input member into rotational motion of the pinion to move a first end of the translation member proximally and a second end of the translation member distally.

The subject invention is concerned with systems and methods advantageously applying finite element analysis to establish design rules for a highly sensitive piezo-resistive pressure sensor with an output that is high enough to be detectable by simple and inexpensive circuits and therefore ensure wearability. Four frequently reported micro-feature shapes in micro-patterned piezo-resistive sensors are provided, where the micro-dome and micro-pyramid yield the highest sensitivity. Investigations of different conductivity values of micro-patterned elastomers show that coating the elastomer with a conductive material (e.g., a metallic coating) leads to higher current response when compared to composited conductive elastomers. Advantageous geometric parameters and spatial configurations of micro-pyramid design of piezo-resistive sensors are provided. Results show that an enhanced sensitivity and higher current output can be achieved by a lower spatial density configuration of three micro-features per millimeter length, a smaller feature size of around 100 μm, and a 60-50 degrees pyramid angle.

Medical systems, devices, and methods for determining whether a blood vessel is a vein or an artery. The system includes an optical fiber configured for insertion into a blood vessel coupled with a console having a light source, an optical receiver, processors, and logic stored in memory. The optical fiber includes sensors disposed along its length configured to determine a state or condition of the optical fiber. The state or condition can include a strain, movement, pressure, and / or temperature. The logic is configured to analyze reflected signals from the sensors to determine whether the optical fiber is inserted within an artery or within a vein. The logic may also determine a red-blue shift of a projected light to determine a blood flow direction with respect to the optical fiber.

Systems, methods, and storage media for robot-assisted laser osteotomy are disclosed. Exemplary implementations may: receive osteotomy data obtained in connection with robot-assisted laser osteotomy; analyse the osteotomy data to determine one or more attributes associated with osteotomy; and determine, based on the one or more attributes, one or more functions associated with osteotomy.

A measuring arrangement for measuring movements of a patient positioned recumbently on a patient table includes the patient table and a securing strap for locally securing the patient on the patient table. The securing strap is flexible and has at least one first fastener that co-operates with a second fastener of the patient table for fastening the securing strap. The measuring arrangement includes a strain sensor provided as part of the securing strap and / or motion-coupled thereto, and a control device for determining motion information describing the movements of the patient from sensor data of the strain sensor.

A system and method directed to detecting placement of a medical device within a patient body, the system including a medical device including a multi-core optical fiber having a plurality of core fibers. Each of the plurality of core fibers can include a plurality of sensors each configured to reflect a light signal having an altered characteristic due to strain experienced by the multi-core optical fiber. The system can further include logic configured to determine a 3D shape of the medical device in accordance with the strain of the optical fiber. The logic can be configured to define a reference plane for the 3D shape and render an image of the 3D shape on a display of the system in accordance with the reference plane.

Systems and techniques are described for determining at least one of a translational force or a rotational force applied by a dental appliance to a tooth or teeth of a patient. A system includes model teeth configured to represent a portion of a dental arch and receive a dental appliance, a post extending from a first end coupled to a respective tooth to a second end coupled to a base, at least one strain gauge integrally formed on a surface of the post between the first end and the second end, and processor communicatively coupled to the at least one strain gauge and configured to determine at least one of a translational force or a rotational force applied by the dental appliance to the respective tooth.

A supra-aortic vessel access robotic control system includes a guidewire hub configured to adjust each of an axial position and a rotational position of a guidewire; a guide catheter hub configured to adjust a guide catheter in an axial direction; and a procedure catheter hub configured to adjust each of an axial position and a rotational position of a procedure catheter, and also to laterally deflect a distal deflection zone of the procedure catheter.

A catheter system for controlled sympathectomy procedures is disclosed. A catheter system for controlled micro ablation procedures is disclosed. Methods for performing a controlled surgical procedure are disclosed. A system for performing controlled surgical procedures in a minimally invasive manner is disclosed.

A system, apparatus and method directed to placing a medical device into a body of a patient, including performing operations of providing a broadband incident light signal to a plurality of core fibers of a multi-core optical fiber, receiving reflected light signals of different wavelengths, and processing the reflected light signals associated with the plurality of core fibers to determine (i) a physical state of the multi-core optical fiber relating to the medical device including the multi-core optical fiber, and (ii) an orientation of the multi-core optical fiber relative to a reference frame of the body. Additional operations include generating a display illustrating the physical state of the multi-core optical fiber based at least on the orientation determined during processing of the reflected light. Typically, the display is a two-dimensional representation of the multi-core optical fiber in accordance with the determined orientation.

A method and system of compensating for body deformation during image acquisition or external beam treatment includes acquiring image data of a body and peak wavelength data from a plurality of fiber Bragg gratings (FBGs) disposed on the body aligned along a predetermined coordinate system on the body, such as a cartesian coordinate system. The method further comprises detecting effective shifts of the Bragg wavelengths of the FBGs caused by body deformation during image acquisition, and controlling the movement of the body through a cavity in a scanning device and controlling the acquisition of the image data or external beam treatment during body deformation based on the effective shifts of the Bragg wavelengths of the FBGs.

The invention belongs to the technical field of sensors and detection, and provides a sheep state recognition device and method based on respiration monitoring, and the device comprises a stretchable strain sensor, a circuit module and other parts; the method comprises the steps of signal correction and filtering processing, waveform feature calculation and sheep state judgment. Through the stretchable strain sensor with better biocompatibility and electrical property, real-time monitoring and feedback on the sheep are realized, the manufacturing cost is lower, the fitness with the body shape of the sheep is better, excessive intervention on the sheep is reduced, and signal acquisition is more accurate; sheep state judgment is carried out through the logic evaluation truth table, and the accuracy is higher and more reliable.

Methods for treating functional anorectal disorders using biofeedback therapy. The method includes using devices and systems to obtain biofeedback data from a user, and further includes using a computer or processor to analyze the biofeedback data and generate and display a visual representation of that biofeedback data to a user.

Embodiments of the present disclosure provide a method and a system for determining a finger joint angle. The method includes obtaining first sensor data relating to at least two target finger joints of a user, the first sensor data is obtained using at least two strain sensors, each of the strain sensors is arranged in a glove body worn by the user and located at one target finger joints, and the at least two target finger joints include at least two adjacent metacarpophalangeal joints of the user; obtaining a first mapping relationship, wherein the first mapping relationship reflects a relationship between sensor data corresponding to the at least two target finger joints and joint angles of the at least two target finger joints; and determining a first joint angle of each of the at least two target finger joints based on the first sensor data and the first mapping relationship.

The invention relates to the technical field of medical health monitoring, and discloses a urine volume detection system based on a strain gauge type sensor, which comprises a urine collection container, a strain gauge type sensor, an electromagnetic valve, a main controller and an infrared human body sensor, the upper port of the urine collecting container is used for receiving urine, and the lower port of the urine collecting container is connected with the strain gauge type sensor; the strain gauge type sensor is used for detecting the weight change of the urine collection container, the urine volume detection system based on the strain gauge type sensor and the intelligent closestool overcome the defect that a traditional closestool cannot measure and record the urine volume, convenience is brought to patients who do not want to use a urinal or a pedestal pan and old people with poor eyesight, and the intelligent closestool is convenient to use. A user can know the urine volume when using the closestool or pouring urine into the urinal into the closestool, use is convenient and sanitary, accurate urine volume data helps a doctor to formulate a more accurate medication scheme for a patient, and the patient is prevented from seeing a doctor repeatedly and the health risk caused by medicine problems.

An apparatus includes a first and second elongate member that can releasably couple together to in order to cooperate to clamp and staple tissue, a latch member that can latch the first and second elongate member to clamp tissue, a firing assembly that can sever and staple clamped tissue, and a strain measuring assembly associated with the first elongate member. The strain measuring assembly being capable of measuring a strain value on the first elongate member, compare the strain value with a predetermined limit associated with successful staple formation, and generate a signal in response to the comparison.

A method for determining a treatment for a sleep disorder for a patient. The method comprises administering a positive airway pressure (PAP) treatment to the patient using a respiratory pressure therapy (RPT) device in a first setting, and acquiring from one or more sensors associated with the patient an initial sleep parameter signal. The PAP treatment is further administered to the patient using the PAP apparatus in a second setting, and subsequent sleep parameter signal is acquired from the one or more sensors. The initial sleep parameter signal and subsequent sleep parameter signal are processed to generate a sleep parameter difference signal. The sleep parameter difference signal is processed to generate a sleep disorder characteristic signal. A sleep disorder treatment for the patient is determined based on the sleep disorder characteristic signal.

A load sensing assembly for a medical implant is disclosed. The medical implant may include an upper surface, a side surface, a bottom surface, and a cavity housing various sensors and microelectronics. In other embodiments, the medical implant may include a port that is accessible through at least one of the bottom surface, side surface, and the upper surface. The port may be configured to receive an electronics assembly, package, or hermetically sealed enclosure. The electronics package may have a size and shape generally corresponding to the port. In various embodiments, electronic components and sensors may be powered by a local power source. In various embodiments, sensors may be chosen from: accelerometers, gyroscope, strain gauge, pressure sensor, pH sensor, impedance sensor, optical sensor, and / or a temperature sensor. In various embodiments, the medical implant may be chosen from: an interbody spinal implant, a pedicle screw, a connector, and / or a cross-link.

An orthopedic support and / or treatment system including a brace, sleeve, and / or insert, comprising a power subsystem; a sensor subsystem; an adjustment mechanism; a software subsystem; a communication subsystem; and a telemedicine subsystem. The orthopedic treatment system includes and communicates over a network to a remote controlling device. The remote control device can be a computer, a mobile device, or any other controller. The sensor subsystem communicates to the remote control device, which in turn can be used to control the adjustment mechanism to adjust a tension or compression of the brace or sleeve.

A method for improved robotic cutting, the method comprising: determining at least one of cutting force data and bone motion data during robotic cutting; determining when at least one of the cutting force data and bone motion data exceeds a predetermined parameter; and when it is determined that at least one of the cutting force data and the bone motion data exceeds the predetermined parameter, providing the user with an indication of the same and pausing the robotic cutting so as to enable the user to mitigate the cause of at least one of the cutting force data and the bone motion data exceeding the predetermined parameter.

Provided in the embodiments of the present application are a measurement apparatus, an electronic device, and a control method thereof, relating to the technical field of data measurement and used for mitigating the problem that devices having a health vital sign measurement function are large. The measurement apparatus comprises a first circuit board, a light-emitting component, a photoelectric converter, a metal cover plate, and a translucent structure. The photoelectric converter and the light-emitting component are disposed on the same side of the first circuit board and are electrically connected to the first circuit board. The metal cover plate covers the first circuit board, and the metal cover plate is electrically connected to the first circuit board. A first light-through hole exposing the light-emitting component and a second light-through hole exposing the photoelectric converter are provided on the metal cover plate. The translucent structure fills the first light-through hole, the second light-through hole, and an accommodating cavity, is wrapped around the light-emitting component and the photoelectric converter, and is connected to the light-emitting component, the photoelectric converter, the first circuit board, and the metal cover plate so as to form an integrated structure, thus reducing the size of the measurement apparatus.

A system (SYS) and related method for facilitating medical imaging of a patient by a medical imaging apparatus (IA). The system comprises an input interface (IN) for receiving measurements collected by shape sensing sensors (Sj) of an optical shape sensing device (SSD). The shape sensing sensors (Sj) are arrangeable relative to the patient's body, wherein the measurements are representative of a current posture of the patient's body. A posture determiner (PD) of the system (SYS) computes, based on the measurements, output data representative of whether the patient's body is in a predefined target posture.

A stretchable fiber optic pressure sensor is a sensing device that uses stretchable optical fibers that deform in response to an applied force. A deformation of a fiber causes a decrease in an intensity or alters a duration of the transmitted light due to a bend, crease, or dent in the fiber. The sensor may be configured to determine a pressure or force as applied by an appendage of a user. Multiple sensors may be configured to be in contact with multiple appendages, such as insoles inserted in shoes to determine walking attributes such as a gait, posture, pace, toe-walking, limping, stumbling, foot drop, swaying, or shuffling of a user. The sensor is configurable to transmit data associated with the applied pressure or force to a user's mobile device or computer to monitor or diagnose health issues associated with walking attributes determined through the use of the sensor.

An improved, implanted stress sensor can continuously monitor blood pressure / flow, and / or other cardiovascular variability parameters, in ambulatory and non-ambulatory patients. The sensor includes a flexible substrate configured to wrap around at least a portion of an artery. The flexible substrate includes a sensing portion in an intermediate portion of the flexible substrate and a non-sensing portion split between opposite ends of the flexible substrate. The sensing portion includes a piezoresistive material configured to detect changes in a diameter of the artery. The non-sensing portion includes at least one opening positioned on each of the opposite ends of the flexible substrate and a stiffening mesh around each of the at least one openings. One or more closure mechanisms connect the opposite ends of the flexible substrate via the openings. The sensor can include at least one lead to connect the sensing portion and a controller.

A wearable electronic device includes a body, a housing component, a band operable to attach the body to a body part of a user, and a force sensor coupled to the housing component. The force sensor is operable to produce a force signal based on a force exerted between the body part of the user and the housing component. A processing unit of the wearable electronic device receives the force signal from the force sensor and determines the force exerted on the housing component based thereon. The processing unit may use that force to determine a tightness of the band, determine health information for the user, adjust determined force exerted on a cover glass, and / or to perform various other actions.