574results about "Strain gauge" patented technology

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.

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.

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.

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.

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.

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.

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 skin inspection device for identifying abnormalities; the device comprising: a transparent panel having an inspection area; an array of thermochromic liquid crystal (TLC) formations provided on the transparent panel which are operable to change colour in response to a change of temperature; and one or more image capture devices for capturing a colour image of the TLC formations and an area of skin of a target located in the inspection area; the captured colour image being analysed to identify abnormalities in the area of skin.

This invention relates to smart textile wearable device with embedded yarn sensors and a computing device comprising a processor and a computer readable medium having encoded thereon a machine learning program that gathers sensor data from the wearable device and generates health parameter output data or real time or long-term feedback to a user for interaction, health and exercise purposes.

A surgical navigation system is provided to create a plan to correct a deformed spinal alignment. A processor is configured to obtain a first set of image data associated with a deformed alignment in a spine of a patient from at least one imaging device. The processor is also configured to process the first set of image data to identify a set of deformed alignment parameters associated with the deformed alignment. The processor is further configured to identify a set of corrected alignment parameters. The processor is also configured to process the first set of image data, the set of deformed alignment parameters, and the set of corrected alignment parameters to generate a correction plan to surgically manipulate the deformed alignment to the preferred alignment. The processor is additionally configured to provide navigation through the correction plan to facilitate surgical manipulation of a patient spine to the preferred alignment. The processor is also configured to receive information relating to forces on a rod-link reducer or surgical implants from strain gauges to aid the correction plan.

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.

Systems and apparatus related to adaptive support garments including adaptive support structures, lacing systems, and an adaptive engine are discussed. In an example, an adaptive support garment includes a support structure, a plurality of lace guides, a lace cable, and an adaptive engine. The support structure is configured to wrap around a portion of anatomy of a wearer and apply a compression on the portion of anatomy. The plurality of lace guides are disposed on the support structure. The lace cable extends through the lace guides to form a lacing pattern over a lacing region of the support structure. The adaptive engine is coupled to the support structure and engages with the lace cable. The adaptive engine is also configured to increase or decrease tension on the lace cable to increase or decrease compression of the support structure on the portion of anatomy, respectively.

A system and method directed to detecting placement of a medical device within a patient body, the system including a medical device including an optical fiber having core fibers. Each of the one or more 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 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.

The present invention relates in general to a garment assembly for facilitating or resisting movement of a subject, such as a person, animal, or inanimate object, wearing a garment of the garment assembly. More particularly, the garment assembly comprises one or more smart material actuators that when stimulated mechanically contract and / or expand, thereby creating a force acting on the garment to trigger, facilitate or resist movement of the subject.

An intraoperative surgical system for knee arthroplasty may be configured and / or reconfigurable to allow the surgical system to be inserted into different sized joint spaces during a surgical procedure. For example, the surgical system may include a sensor support body defining a platform, a force sensor, and a plurality of sensor covers each being configured to be detachably attached to the sensor support body. Each of the sensor covers can vary from each other in at least one characteristic. A selected one of the sensor covers can be placed over the platform, sandwiching the force sensor between the platform and sensor cover, to define a joint insertion block configured to be inserted into a tibiofemoral joint for measuring a force between a tibia and a femur defining the tibiofemoral joint.

A method for determining a muscle fatigue of a muscle includes the step of electrostimulating the muscle at different frequencies, wherein the electrostimulation includes, at each frequency, a repetition of pulses during a period of time lower than 5 s. The method further includes the steps of determining forces developed by the muscle in response to the electrostimulations of step (i); and determining a muscle fatigue on basis of the determined forces.

Disclosed herein is an article of smart clothing which automatically recognizes body configuration and motion. This smart clothing includes inertial motion units which are distal relative to selected joints and also sets of strain sensors which span those joints. The type of energy transmitted through a strain sensor can be electrical energy or light energy. Combined multivariate analysis of data from both inertial motion units and strain sensors provides more accurate recognition of body configuration and motion than data from either alone.

The invention discloses an intelligent bone fracture plate integrated with an optical fiber Fabry-Perot sensor and a healing monitoring method. The system comprises an intelligent bone fracture plate module, an in-vitro detection module and a data analysis module. The intelligent bone fracture plate module mainly comprises a bone fracture plate body, a diaphragm type optical fiber Fabry-Perot sensor packaged in a U-shaped groove in the bone fracture plate, and a subcutaneous coupling capsule connected through a leading-out optical fiber. The sensor converts mechanical strain of the bone fracture plate into optical signal change of the Fabry-Perot cavity. The in-vitro detection module is in wireless optical coupling with the subcutaneous coupling capsule through an external read-write equipment head of the in-vitro detection module, probe light is emitted, interference light signals are received and reflected, and the strain of the bone fracture plate is calculated through a spectrum analyzer / detector. And the data analysis module converts the strain data into a key load sharing ratio. By monitoring the trend that the ratio gradually decreases from the postoperation along with time and comparing the trend with a preset clinical threshold value, objective, quantitative, dynamic and non-invasive monitoring of the fracture healing process is achieved.

A system for providing guided and monitored exercise routines wherein physiological data measurements are used to determine an optimized exercise program for a participant. The exercises are displayed on a smart device in such a way to maximize the benefits given the participant's current physiological state. Improvements including wellness monitoring and safety monitoring steps are also disclosed. In particular, measurements of total and individual lung performance and heart performance are used to select exercises and monitor health.

A system for monitoring anxiety of an individual includes a chair having at least a seat and a back, a base supporting the chair, and a first sensor disposed in at least one of the seat or the back. The first sensor is configured to, without being in direct contact with the individual, continuously obtain data related to a first physical characteristic from the individual seated in the chair. The first physical characteristic is one of respiration or pulse rate. The system further includes a display and a controller. The controller is configured to receive, in real-time, the data related to the first physical characteristic from the first sensor and compile a first metric from the received data. The first metric is configured to visually represent a change in the first physical characteristic. The controller is further configured to output the first metric to the display in realtime.

To provide a posture detection system and a posture detection method for grasping a posture of a user of a cushion on which the user sits accurately and for grasping whether the user is not seated for a long time.SOLUTION: A posture detection system for detecting a posture of a user who sits on a cushion is equipped with a seat part 2 having a hip support part 4 and a waist support part 3 having a sacrum support part 11. The posture detection system includes a seat part sensor 31 attached to the seat part 2 for measuring whether a user is seated on the seat part 2, a sacrum support part sensor 32 attached to the sacrum support part 11 for measuring the posture of the user seated on the seat part 2, a posture determination part for determining the posture of the user from a result of the measurement by the sacrum support part sensor 32, and an alarm part for outputting an alarm when the posture of the user is determined not to be desirable by the posture determination part.SELECTED DRAWING: Figure 1

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.

In one embodiment, a dental appliance includes a dental-appliance body and a core sensor module embedded within the dental-appliance body. The core sensor module includes one or more processors. The dental appliance further includes at least one biological sensor coupled to the dental-appliance body and conductively coupled to the core sensor module, and further includes a conductive layer running through at least a portion of the dental-appliance body and conductively coupling the core sensor module with the at least one biological sensor.

A resilient fabric band providing a sensor platform for a wearer in order to sense a plurality of biometric data, the band comprising: a pair of ECG sensors coupled to an interior surface of a body of the band, each of the pair of ECG sensors located on either side of a front to back centerline of the body; a pair of bio impedance sensors coupled to the interior surface of the body of the band, each of the pair of bio impedance sensors located on either side of the front to back centerline; a strain gauge sensor coupled to the body of the band; a computer device mounted on the body of the band via a housing, the computer device including a power source, a computer processor, a memory for storing instructions for execution by the computer processor, and a network interface for transmitting data sensed by the sensors; and a plurality of communication pathways connecting the computer device to each of the sensors, the communication pathway for sending power from the power supply to the sensors as controlled by the computer processor and for receiving sensed data from the sensors by the computer processor.