1116results about "Strain gauge" patented technology

A method of performing a neurovascular procedure includes the steps of providing an access catheter having an access catheter hub; coupling the access catheter hub to a hub adapter, movably carried by a support table; driving the access catheter in response to movement of the hub adapter along the table until the access catheter is positioned to achieve supra-aortic vessel access; removing the access catheter and access catheter hub from the hub adapter; and coupling a procedure catheter hub having a procedure catheter to the hub adapter.

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.

An impact apparatus and a computing system provide real-time feedback about a particular activity performed using the impact apparatus. In one general aspect, a method includes providing a user interface that displays a plurality of impact zones, the plurality of impact zones corresponding to a plurality of impact zones on an impact apparatus configured to generate voltage in response to an impact. Implementations can include determining a hit impact location and a velocity of an object for an impact event and updating the user interface with the hit location and velocity. Implementations can include determining a response time for an impact event. Implementations can include determining a location and magnitude of an impact event. Some implementations may include determining whether a location is a target location. Implementations can score an impact according to its magnitude, location, and / or response time.

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 system configured to monitor and characterize motions of a user is disclosed herein. The system can include a wearable article including a tubular body comprising a resilient material, a flexible circuit including a fluid-phase conductor configured to generate a first signal, and an inertial measurement unit (“IMU”) coupled to the resilient material, wherein the IMU is configured to generate a second signal. The system can further include a processor communicably coupled to the flexible circuit and the IMU.

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.

An implantable, wireless cardiac hemodynamics monitor system includes a bio-sensing module and a wireless electronic subsystem. The bio-sensing module is implanted in a heart or an artery of the mammal subject to continuously monitor cardiac functions of the mammal subject. The wireless electronic subsystem is implanted between a fat layer and a dermis layer of a skin of the mammal subject and electrically connected to the bio-sensing module through insulated flexible wires. the wireless electronic subsystem is wirelessly communicated to an external wireless power transfer (WPT) module and an external user interface module. In operation, the wireless electronic subsystem is used to wirelessly receive power transferred from the external WPT module, and provide the power to the bio-sensing module; and to obtain sensing signals of the cardiac functions monitored by the bio-sensing module, and wirelessly transmit the sensing signals obtained to the external user interface module.

A method for compensating for dynamic changes in a body of a patient during a controlled interaction with the body includes acquiring data from at least one sensing device disposed on the body and detecting a change along at least one optical fiber of the sensing device caused by dynamic changes associated with the body during the controlled interaction. A respiratory gating signal is generated based on the change along the at least one optical fiber of the sensing device measured over time. The method further comprises controlling relative movement between the body and an interactive device in response to the respiratory gating signal to compensate for the dynamic changes associated with the body during the controlled interaction.

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 method for compensating for dynamic changes in a body of a patient during a controlled interaction with the body includes acquiring data from at least one sensing device disposed on the body and detecting a change along at least one optical fiber of the sensing device caused by dynamic changes associated with the body during the controlled interaction. A respiratory gating signal is generated based on the change along the at least one optical fiber of the sensing device measured over time. The method further comprises controlling relative movement between the body and an interactive device in response to the respiratory gating signal to compensate for the dynamic changes associated with the body during the controlled interaction.

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.

Disclosed embodiments include a multi-mode sensor including an elastomeric strand having a first multi-mode sensing region configured to sense at least two different physical parameters, and a second multi-mode sensing region, space apart from the first multi-mode sensing region, and configured to sense at least two different physical parameters. In some disclosed embodiments the first multi-mode sensing region is configured to measure the physical parameters of angular displacement and strain.

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 smart contact lens includes a lens body including a first lens surface in contact with an eye and a second lens surface positioned opposite the first lens surface, and an antenna disposed between the first lens surface and the second lens surface and configured to form a closed loop. The antenna may include an antenna ring forming a shape of a ring as a whole; and an antenna buffer bent and extended from the antenna ring in a diameter direction of the antenna ring.

Skin-mountable electronic devices and methods suitable for fabricating and using the devices. One embodiment of such a device includes a flexible structure comprising a pattern of individual interconnected traces each comprising a portion of an electrically-conductive layer that overlies and directly contacts an underlying portion of an elastomeric layer. At least some of the portions of the electrically-conductive layer within the pattern are functional electrodes of the skin-mountable electronic device.

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.

A garment for real time detection of body deformation during an image scan includes a front portion, made of a compression material and having a plurality of fiber Bragg gratings (FBGs). The garment includes a plurality of light emitters, each light emitter configured to pulse light waves through a corresponding FBGs and a plurality of light sensors, each light sensor attached to a corresponding FBG and configured to receive pulsed light waves. A processor obtains data through a data acquisition module configured to receive from the light sensors peak wavelengths reflected by the FBG Based on the effective shifts of the Bragg wavelengths of the FBGs aligned along the cartesian coordinate system, the processor may correct acquired image data or re-direct an external beam treatment to compensate for body deformation during an image scan.

A multi-sensor patch for simultaneous abdominal monitoring of maternal and fetal physiological data includes a multi-layer flexible substrate with a center region and a plurality of electrode regions. A conductive layer of the flexile substrate provides an electrical connection between each of the plurality of electrode regions and the center region. A plurality of electrodes are formed into the flexible substrate. At least one mechanical motion sensor is connected to the multi-layer flexible substrate. A module unit is connected to the conductive layer at the center region. The module unit includes a controller configured to receive biopotential physiological data from the plurality of electrodes and mechanical sensor data from the at least one auxiliary sensor. The controller calculates at least fetal heart rate, maternal heart rate, and uterine activity from the biopotential physiological data and from the mechanical sensor data.

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.