66 results about "Physiological movement" patented technology

A disc implant is provided which maintains intervertebral spacing and stability within the spine. In an embodiment, a disc implant may include three or more components. Components of the implant may imitate certain physiological movements associated with a healthy spine. In certain embodiments, the components of the implant may limit physiological movements to within certain ranges, imitating normal spinal movements.

An implantable hearing aid transducer interface disposable between an implantable transducer and a mounting apparatus and having at least a portion that is displaceable in response to a predeterminable range of transducer movement. According to one aspect of the invention, the predeterminable range of transducer movement includes movement in response to a physiological movement of an auditory component that results in pressure on the implantable transducer. In this case, the compliant interface permits adaptive movement of the implantable transducer in response to the pressure to maintain a desired interface between the implantable transducer and an auditory component. According to another aspect, the predeterminable range of transducer movement may be transducer vibration resulting from an acoustic stimulation of an auditory component by the implantable transducer. In this case, the compliant interface reduces the transmission of transducer vibration over a feedback path to a microphone of a hearing aid.

Medical devices, systems, and methods mitigate a variety of disorders, including sleep-related breathing disorders. A stiffness, shape, and/or size of a reinforced tissue structure can be altered by applying a magnetic field and/or electrical field. The upper airway can be remodeled at night while maintaining physiological movement (such as swallowing, speaking, singing, and the like) when awake. Biasing of the tissue structures may also be employed.

Disclosed is a system and method for a hybrid radar system that integrates frequency-modulated continuous wave (FMCW) mode and interferometry mode. The radar works as a time division system that continuously switches between the FMCW mode and interferometry mode. The FMCW mode is responsible for absolute range detection and the interferometry mode takes cares of the weak physiological movement monitoring. The respective accuracies in range detection and displacement measurement complements the advantages of the two radar modes, providing versatile performance. By steering the antenna beam, the proposed radar system becomes an ideal solution for indoor health care, human localization, and human-computer interaction. Objects or human targets with or without stationary clutters can be precisely located. At the same time, the targets' vital signs and gestures can be monitored.

The invention relates to an exoskeleton for assisting human movement, which can be fitted to the user in terms of dimensions, tension and ranges of joint motion, either manually or automatically. Said exoskeleton can be fitted to the user in the anteroposterior direction in the sagittal plane, with the user in a horizontal or sitting position, without requiring a functional transfer. The exoskeleton has a modular design which is compatible with human biomechanics and reproduces a natural and physiological movement in the user, with up to 7 actuated and controlled degrees of movement per limb, ensuring that the user maintains equilibrium during locomotion.

The invention discloses a whole-body-coordinating multifunctional four-arm robot. The whole-body-coordinating multifunctional four-arm robot comprises a crawler type walking machine, a base, a lifting lead screw mechanism, a holding arm part and a counterweight mechanism, wherein the holding arm part consists of an upper body holding manipulator and a lower body holding manipulator. According to the whole-body-coordinating multifunctional four-arm robot, the rehabilitation training on the three linear degree of freedom and two revolution degree of freedom of a human hip during gait training can be realized; the physiological movement of the hip during gait training can be highly simulated, and the rehabilitation effect can be efficiently enhanced.

The invention discloses a walking aid lower limb of an exoskeleton robot. The walking aid lower limb comprises a first actuator fixing part (1.1), a thigh rod (1.2), a bionic knee-joint (1.3), a shank guard board (1.4), a shank guard board fixing part (1.5), a shank rod (1.6), a shank guard board connecting piece (1.7), a second actuator fixing part (1.8), and an actuator (1.9). The invention provides a walking aid lower limb of an exoskeleton robot, combined with a crossed four-bar linkage structure, a bionic mechanism which accords with physiological movement characteristics of human knee joints is designed. The walking aid lower limb can eliminate harmful applied forces generated by man-machine offset, and solves problems of radial deviation and tangential rotation offsets generated by man-machine system microscopic offset along a shank, so as to improve use security and wearing comfortableness of a rehabilitation exoskeleton.

A smart lens system may include a hardware processor coupled to a smart contact lens, which may include a microprocessor, an image capturing sensor, and a wireless communication interface. The smart lens system may determine reading factors associated with a user with respect to the user reading content item, based on data related to the user's physiological movements captured by the smart contact lens. The reading factors may include a user's cognitive state determined at least from analyzing data representing the user's physiological movements. Responsive to determining that the user's cognitive state is above a threshold value, the smart lens system may generate an assistive action associated with the content item and transmit a signal to at least one assistive device to perform the assistive action. The assistive device performs the assistive action responsive to receiving the signal.

The invention provides a spinal column dynamic connection rod, comprising an upper connection part, a lower connection part and an elastic piece, wherein the upper connection part and the lower connection part are connected with each other via the elastic piece. The spinal column dynamic connection rod is characterized in that: the upper connection part, the lower connection part and the elastic piece are integrally formed; the elastic piece is provided with an elastic hole; and an elastic groove is formed on an external periphery of the elastic piece. The spinal column dynamic connection rodprovided by the invention can realize stability of the spinal column and keep the normal physiological movement of the spinal column with a simple structure.

The invention discloses a dual-arm support rehabilitation training robot and an operation method of the dual-arm support rehabilitation training robot. The dual-arm support rehabilitation training robot comprises a crawler type walking machine, a base, a lifting screw mechanism, a manipulator part and a counterweight mechanism, wherein the manipulator part comprises shoulder joints, rotary joints, elbow joints and wrist joints, wherein each joint comprises a motor, a harmonic reducer and an output end. By adopting the dual-arm support rehabilitation training robot, the rehabilitation training of three-linear degree-of-freedom and two-rotational degree-of-freedom on hips of a human body can be realized in a gait training process; physiological movements of the hips in the gait training process can be highly simulated to effectively enhance the rehabilitation training effect.

The invention discloses a multifunctional double-supporting rehabilitation exercising robot. The multifunctional double-supporting rehabilitation exercising robot comprises a crawler type walking machine, a base, a lifting screw rod mechanism, a manipulator part and a counterweight mechanism, wherein the manipulator part comprises shoulder joints, revolving joints, elbow joints and wrist joints; each joint comprises a motor, a harmonic speed reducer, and an output end. The multifunctional double-supporting rehabilitation exercising robot has the advantages that the rehabilitation exercising on three linear degrees of freedom and two revolving degrees of freedom of the hips of human body is realized in the step training process; the physiological movement of the hips can be highly simulated in the step training process, and the effect of rehabilitation training is effectively improved.

The invention relates to a PET imaging system and an imaging method thereof. The PET imaging method comprises the following steps: dividing a predetermined scanning section into one or more sub-scanning areas, wherein each sub-scanning area corresponds to a scanning bed; prejudging whether or not there is physiological movement in the corresponding sub-scanning area for each scanning bed; if yes, obtaining PET data of the sub-scanning area corresponding to the scanning bed in a first time period through a first data acquisition mode and obtaining the gated image of the sub-scanning area at least based on the PET data in the first time period; if not, obtaining the PET data of the sub-scanning area corresponding to the scanning bed in a second time period through a second data acquisition mode and obtaining the static image of the sub-scanning area according to the PET data in the second time period. The PET imaging system comprises a dividing unit, a judging unit, a scanning unit and a reconstruction unit, and is used for obtaining the static or gated image of the sub-scanning area through the imaging method.

The invention discloses a flow compensation method for a nuclear magnetic resonance imaging system. The flow compensation method is characterized by comprising the following steps that: (1) gradient combined pulses which satisfy flow compensation are applied in a frequency encoding direction between a 90-degree radio frequency pulse time series and a 180-degree radio frequency pulse time series of a fast spin echo (FSE) sequence; (2) a scattering gradient is applied before a signal acquisition gradient and before 180-degree radio frequency pulses, and a compensation gradient is applied after the acquisition gradient, and the signal acquisition gradient, the scattering gradient and the compensation gradient jointly form a first-order gradient velocity compensation gradient; (3) phase encoding gradient amplitude is set to be zero, and the time series of the sequence is set, and the amplitudes of the gradients are adjusted, and the amplitude of echo signal peaks of an echo chain is made to reach a maximum value, and the debugging of the sequence is completed; and (4) the sequence is outputted to a spectrometer, so that flow compensation can be realized. With the flow compensation method for the nuclear magnetic resonance imaging system of the invention adopted, situations such as cerebrospinal fluid flow and spinal fluid flow artifacts and image blurring can be significantly inhibited, and therefore, the problem of image artifact generation which is caused by physiological movement such as blood flow or periodic movement can be alleviated.

The invention discloses a buffer-type artificial ankle joint which comprises an implant used for being installed in cancellous bones at the lower end of a tibia, a tibia end foundation plate, a tibia end joint surface, a talus end joint surface, a talus end foundation plate and a buffer device. The implant is hollow, and the circumferential wall is provided with holes. One end of the tibia end foundation plate is movably connected with the implant, and the other end of the tibia end foundation plate is connected to the tibia end joint surface in a clamping mode. The talus end joint surface is connected with the talus end foundation plate in a shaft matched mode. The talus end foundation plate is provided with shocking proof holes used for installation of the buffer device. The structural design of the buffer-type artificial ankle joint meets requirements of human body ankle joint anatomy, imitates ankle joint physiological movement, and fits biomechanics characteristics. The buffer device can reduce collision, reliefs stress conduction, effectively reduces movement load, and overcomes overall pressure stress. The buffer-type artificial ankle joint is simple in operation, and is wide in applicable diseases.

The invention discloses an electromagnetic wave physiological movement imaging system which comprises a radio-frequency front end module, a direct-current offset compensation module, a phase information extraction module and a physiological movement separation module. The first output end and the second output end of the radio-frequency front end module are connected with the first input end and the second input end of the direct-current offset compensation module respectively, the first output end and the second output end of the direct-current offset compensation module are connected with the first input end and the second input end of the phase information extraction module respectively, the output end of the phase information extraction module is connected with the input end of the physiological movement separation module, and the first output end and the second output end of the physiological movement separation module are connected with the first output end and the second output end of the electromagnetic wave physiological movement imaging system respectively. Compared with the prior art, the electromagnetic wave physiological movement imaging system has the advantages of being low in cost, small in radiological hazard and high in anti-interference performance.

The present invention relates to a magnetic resonance imaging scanning method and device, a computer device and a storage medium. The method comprises the steps of: obtaining a physiological movementcurve of a detection object, and determining a steady state period and a data collection period according to the physiological movement curve; applying a steady state sequence in the steady state period, wherein the steady state sequence comprises a first dispersed phase gradient; applying an imaging sequence in the data collection period to obtain magnetic resonance signals of the detection object, wherein the imaging sequence comprises a position coding gradient and a second dispersed phase gradient; filling the magnetic resonance signals to a K space; and obtaining K space data, and performing reconstruction of the data of the K space to obtain the magnetic resonance images of the detection object. The steady state sequence has no the position coding gradient to reduce the noise in thesteady state period, allow the detection object to stably breathe and reduce the breathing artifacts in the magnetic resonance images.

The invention provides a seven-degree-of-freedom upper limb assisting exoskeleton robot and belongs to the technical field of rehabilitation robots. The seven-degree-of-freedom upper limb assisting exoskeleton robot comprises a wrist part, a palm part and a finger part. The wrist part is connected with the palm part. The wrist part comprises a wrist ring toothed rail and a wrist slider arranged on the wrist ring toothed rail. The palm part comprises a palm protecting plate and is connected with the finger part which comprises a thumb plate and a four-link finger plate. Compared with the prior art, the seven-degree-of-freedom upper limb assisting exoskeleton robot can simulate the bending/extending and the inward rotation and outward rotation of wrists, the bending/extending of palms and the bending/extending of thumbs of the upper limbs of human bodies, thereby having high degree of freedom; the movement ranges of the degrees of freedom are based on reasonable distribution and restriction, so that the robot can better fit the physiological structure of the hands of human bodies, assist the hands of the human bodies in moving flexibly at multiple angles and better assist wearers in making basic physiological movement.

The invention discloses a complex-shaped gel-metal composite prosthesis and a manufacturing method thereof. The prosthesis consists of a silicon rubber jacket and a three-dimensional bracket inside the silicon rubber jacket, wherein the silicon rubber jacket and a titanium mesh three-dimensional structure are simulated and manufactured through the assistance of a computer. The prosthesis can be completely attached to soft and hard tissue defects, has a good edge sealing and fixing effect, has certain supporting strength on the basis of recovering the attractive appearance of a patient, can resist physiological movement of an oral cavity jaw face, is difficult to deform, and provides a new direction for solving the problems of heavy weight, low elasticity, high hardness, a large number of side effects and the like of the conventional prosthesis.

In a method and apparatus for determining a physiological activity signal in a subject using various movement sensors that each transmit a temporal movement signal, a physiological reference signal is determined from the various movement signals that best depicts a physiological movement of the subject, the movement sensor that generates the physiological reference signal is identified as a physiological reference sensor, at least one physiological addition signal is determined from the temporal movement signals that is similar to the physiological reference signal up to a limit, and the physiological reference signal and the at least one addition signal are added to form the physiological activity signal.

The invention relates to an artificial cervical intervertebral disc, which comprises an upper bottom plate, a lower bottom plate and a nucleus pulposus arranged between the upper bottom plate and the lower bottom plate, wherein the nucleus pulposus consists of an upper nucleus pulposus and a lower nucleus pulposus; the upper nucleus pulposus is provided with a convex cylinder; the lower nucleus pulposus is used for allowing an arc-shaped dovetail groove to be nested with the convex cylinder; the upper nucleus pulposus and the lower nucleus pulposus are mutually buckled; the upper bottom plate and the upper nucleus pulposus are cooperated and rotate around a coronal axis so as to simulate the fore flexion and back extension function of the cervical intervertebral disc; the upper bottom plate and the upper nucleus pulposus are permitted to generate front and back relative micro translation; the upper nucleus pulposus and the lower nucleus pulposus are cooperated, can rotate around the rotation axis of the self convex cylinder of the upper nucleus pulposus and also can perform revolution around the rotary track of the arc-shaped dovetail groove of the lower nucleus pulposus; the lower nucleus pulposus and the lower bottom plate are cooperated, and rotate around a sagittal axis to bear motor functions of left and right lateral curvature; and the lower bottom plate and the lower nucleus pulposus are permitted to generate left and right relative micro translation. According to the cervical intervertebral disc prosthesis disclosed by the invention, different construction members of the cervical intervertebral disc prosthesis are permitted to mutually move, and a rotation center in the moving process is coincident with the rotation center of cervical spine segmental physiological movement, so that the natural physiological state of the cervical vertebra can be furthest restored.