146 results about "Hand function" patented technology

The invention discloses a multi-freedom wearable robot for hand function recovery. The robot comprises mechanical arms and mechanical fingers; the mechanical fingers consist of a mechanical thumb, a forefinger, a middle finger, a ring finger and a little finger, wherein the forefinger, the middle finger, the ring finger and the little finger have the same structure as that of the thumb; the mechanical forefinger mainly comprises air muscle, a finger end bracket, a first middle connecting piece, a finger front end bracket and a second middle connecting piece which are connected in turn through a connecting rod; the air muscle drives the second middle connecting piece to move through a rigid string so that the finger of a patient makes lituate and adduction exercises; the inside of each connecting piece is provided with a pressure spring; and inside walls of the two connecting pieces are distributed with rolling beads to reduce friction between the connecting rod and the connecting pieces. The invention also provides a control system and an integrated electricity stimulation system of the robot to assist a patient to rebuild muscle function. The robot provides an assisted exercise mechanism for the fingers, has multiple freedom degrees and dimension adjustable movement mechanism, and can effectively assist the patient to finish repeated training of composite exercise for fingers and complicated finger dividing exercise.

The invention discloses a wearable hand function rehabilitation robot, which is mainly used for assisting the repeated movement function rehabilitation training of the patient with hand movement function disorder which is caused by stroke, brain trauma, spinal cord injury and peripheral nerve injury in communities or families. The robot system extracts the active movement will of the patient by detecting the multi-channel surface myoelectric signals of the affected hand and obtains the state of the affected limb by combining the data which is measured by an angle and force sensor to carry out the rehabilitation training of the affected hand by pneumatic muscle contraction assistance by using the intelligent control algorithm on the basis. The rehabilitation robot has multiple degrees of freedom, which can assist the affected hand to carry out multi-joint complex movement and inosculate the multi-sensor data information fusion during the rehabilitation process to be further used for the evaluation of rehabilitation effect, and the activity and the training interest of the patient can be improved by using the rehabilitation treatment virtual environment on a computer. The invention has the advantages of simple structure, flexible movement, safety and reliability, which can not only realize the rehabilitation training of the movement function of the affected hand, but can also be in line with the physiologic structure characteristics of human hands. The invention is more comfortable to wear.

The invention relates to hand function rehabilitation training equipment based on a spontaneous movement imagery electroencephalograph. Hardware of the instrument consists of an electroencephalograph signal acquisition and processing module, a hand force signal real-time detection sensor array, a control module based on multisource information fusion and a rehabilitation manipulator module, and software for supporting the active rehabilitation training of hand functions is arranged in a computer. The rehabilitation training equipment provides external compensation assistance or resistance hierarchically by taking movement imagery electroencephalographs of patients who suffer from cerebral injury as a starting signal and the muscle force of hands as a feedback signal in a self-adaptive mode according to the myasthenia state of the patients to assist patients who suffer from dyskinesia in performing passive, assisted and active rehabilitation training, displays the state information of the hand movement functions and the provided external power information for doctors and the patients and provides an objective and quantitative assessment method and an index for clinical rehabilitation diagnosis and treatment. The instrument is easy to use, has a friendly interface and is accepted by the doctors and the patients easily. A user can operate a system of the instrument without programming experiences, and the operating environment is not complex.

The invention discloses data gloves for function rehabilitation training and assessment of hands. Each data glove further comprises bent sensor groups which are arranged on the hand back side inside the each data glove in a packaged mode and flexible pressure sensor groups which are arranged on the palm side inside each data glove. The bent sensor groups are placed on finger joints, the pressure sensor groups are placed on the a plurality of key nodes where a hand is in contact with an object when the object is grabbed, and lead-out lines of the bent sensor groups and lead-out lines of the pressure sensor groups are packaged inside each data glove, collected to the outer side of a forearm via the hand back side, and connected with a subsequent hardware processing circuit. The data gloves for the function rehabilitation training and the assessment of the hands are strong in wearability and capable of collecting finger bending angle information and palm pressure information of the hands of a patient, the finger bending angle information and the palm pressure information are used in the hand function rehabilitation training under a virtual environment, and quantitative assessment results of a muscle force range from no joint movement to movement capable of resisting normal resistance can be given.

The invention relates to a wearable portable power exoskeleton hand function rehabilitation training device, which comprises a palm plate, a shell, five fingers, a bionic tendon connecting rod assembly, a driving push rod and a linear push rod motor assembly. The linear push rod motor assembly is fixed on the palm plate, and is respectively connected with the five fingers through the driving push rod and the bionic tendon connecting rod assembly fixed on a finger root fixing seat to form a finger driving mechanism. The device is powered by two linear push rod motors which respectively drive the four fingers and the thumb, a driving mode is greatly simplified, and the number of the used motors is reduced; and the device is simple in structure and easy to use. A hand exoskeleton part well clings to a palm of a patient, a good bionic effect is achieved, and the rehabilitation training of the patient with impaired hand functions can be well carried out by the device. Owing to the design of a position-adjustable finger bandage system, the wearing mode of the device can be flexibly adjusted according to the sizes of the hands of the patient, and the device is not required to be tailor-made specially, and has high practicality.

The invention relates to a self-adaptive wearable submissive exoskeleton rehabilitation manipulator, comprising a flexible driving push rod, five flexible hinge fingers, a straight push rod motor assembly, and a motor case. The five flexible hinge fingers are arranged on a supporting plate and a fixing frame. The straight push rod motor assembly is fixed in the motor case, and is connected with the five flexible hinge fingers through a linear motor push rod, a Bowdon cable, and the flexible driving push rod, to form a finger driving mechanism. The rehabilitation manipulator obtains power through three linear push rod motors, the linear push rod motors respectively drive four fingers and a thumb, and a driving method and the number of used motors are greatly simplified. The flexible hinge finger portions can preferably fit with fingers through a finger fixing bandage, to adapt to position forms of each finger. The rehabilitation manipulator has relatively good bionic effect, and can preferably assist a patient whose hand functions are damaged for rehabilitation training and daily life. The rehabilitation manipulator is simple in structure, and is portable, and is convenient to carry, and a patient can autonomously perform rehabilitation training in a community or at home.

The invention relates to a motion capture technology and an application of the motion capture technology in hand function rehabilitation, and particularly relates to a hand rehabilitation training evaluation system based on motion capture and a hand rehabilitation training evaluation method based on the motion capture. The hand rehabilitation training evaluation system comprises a low-cost hand motion capture and display system, and comprises hand marking equipment, a camera shooting platform and a computer system. A binocular vision three-dimensional imaging technology is utilized, and then defects that a current hand movement function detection method is lack of continuity and accuracy and cannot track wounded finger trajectory in real time are overcome; and the invention provides the simple-method, low-cost and high-reliability hand rehabilitation training evaluation system and method.

The invention discloses a gripping function evaluating and training system. The gripping function evaluating and training system comprises a host interaction module, a signal acquisition module, a signal storage module and a host control module, wherein the host interaction module is used for guiding a user to adjust gripping force and muscle contraction conditions in real time to fulfill a virtual task; the signal acquisition module is used for acquiring mechanical signals and electromyographic signals of the upper limbs of the user; the signal storage module is used for receiving and storing the mechanical signals and the electromyographic signals of the signal acquisition module, and storing characteristic parameters; the host control module is connected with the host interaction module and the signal storage module respectively, and is used for computing and processing the mechanical signals and the electromyographic signals transmitted by the signal acquisition module to obtain the characteristic parameters, controlling a virtual scene to perform corresponding game operation so as to train the motion control function through the characteristic parameters, and finally transmitting the characteristic parameters to the signal storage module. The gripping function evaluating and training system performs human-computer interaction by utilizing multiple parameters such as the electromyographic signals and the mechanical signals, and is used for training and evaluating the hand function of a stroke patient, so that the hand motion function of the patient is improved.

The invention relates to a portable multi-mode controlled hand function rehabilitation training device, wherein a four-fingered driving mechanism and a four-fingered reducing mechanism are arranged on a thumb plate; a thumb driving mechanism and a thumb reducing mechanism are arranged on the thumb plate; the four-fingered driving mechanism is connected with a connecting rod mechanism by the four-fingered reducing mechanism; the connecting rod mechanism is connected with a curved chute mechanism and a self-adaption finger adjusting mechanism; the curved chute mechanism is driven by the four-fingered driving mechanism, so that the movement of metacarpal joints and the movement of proximal phalangeal joints are realized; the thumb driving mechanism is connected with a thumb driving connecting rod mechanism by the thumb reducing mechanism; the driving connecting rod mechanism is connected to a thumb curved chute mechanism; the front end of the thumb curved chute mechanism is connected with a non-elastic bandage for thumbs; the thumb driving mechanism drives the thumb curved chute mechanism to prompt thumb joints to move. According to the portable multi-mode controlled hand function rehabilitation training device, two micro-motors are used for realizing single training of thumbs, and joint training and grabbing training of four fingers; the independent movements of thumb metacarpophalangeal joints, four-finger metacarpophalangeal joints and proximal phalangeal joints under a simple structure are realized.

The invention discloses a human-imitation synchronous wireless control mechanical arm system. The human-imitation synchronous wireless control mechanical arm system comprises a mechanical part and a control part, wherein the mechanical part comprises a mechanical arm part and a hand motion information acquisition part, the mechanical arm part comprises a palm part and an arm part, the control part comprises an acquisition end microprogrammed control unit (MCU), a wireless transmission module and a primary MCU, the acquisition end MCU acquires resistance value information of each potentiometer in the hand motion information acquisition part and transmits joint angles of hands of a human body to the primary MCU through the wireless transmission module, the primary MCU controls corresponding steering engines to rotate corresponding angles in the mechanical arm part, and synchronous movement of the mechanical arm part and the hands of the human body is achieved. Compared with existing mechanical arms, the human-imitation synchronous wireless control mechanical arm system is more flexible and easier to control, can be applied to the medical field to help the disabled to recover the hand functions due to the fact that the human-imitation synchronous wireless control mechanical arm system is designed fully according to the outline and the degree of freedom of the hands of the human body, and can also be used as a power hand to be applied to fields, such as the military industry and spaceflight.

The present invention discloses a prosthetic limb hand which is driven and controlled by brain-computer interface and a control method thereof. The prosthetic limb hand comprises the following components: a brain-electrical signal collecting device which is installed in the brain for collecting brain-electrical signal; a signal processing device which executes amplifying and filtering processing to the brain-electrical signal collected by the brain-electrical signal collecting device; a signal extracting recognizing transmitting device which executes characteristic extraction and action mode recognition to the brain-electrical signal obtained by the signal processing device and transmits the information to a prosthetic limb hand driving device; and the prosthetic limb hand driving device which drives the prosthetic limb hand to finish the corresponding action and feed back the action information when the information transmitted by signal extracting recognizing transmitting device is received. The prosthetic limb hand device according to the invention drives the prosthetic limb hand to finish the related action through brain-electric control, successfully prevent the problems of easy muscle fatigue, inferior repeatability, etc. caused by myoelectric control, can execute precise control to the prosthetic limb hand and realizes the hand function more ideally. The invention is suitable for driving control of prosthetic limb hand used by person with disabled upper arm.

The invention discloses a virtual-real fused hand function rehabilitation training system and method. The rehabilitation training system comprises an image acquisition device and a background processing device, wherein the image acquisition device is used for carrying out real-time acquisition on multi-viewpoint hand images of users, then preprocessing the multi-viewpoint hand images, and sending the processed multi-viewpoint preprocessing images to the background processing device; and the background processing device is used for receiving the multi-viewpoint preprocessing images, carrying out three-dimensional modeling on the received multi-viewpoint preprocessing images so as to generate a three-dimensional hand model, then arranging the hand model in a virtual scene, and after the virtual scene produces a real-time feedback for the hand input, displaying the obtained output. By using the rehabilitation training system disclosed by the invention, the training on hand motion abilities is implemented through virtual-real interaction so as to speed up the rehabilitation of hand functions without increasing hand burden; the rehabilitation training system is simple in equipment structure and small in occupied space; the rehabilitation training method is easy to operate; users can carry out training by using the system and method disclosed by the invention without the guidance of professional doctors, and no damage to the users is caused; and the system has the advantages of good immersion sense and good instantaneity, and a good training effect can be achieved through virtual-real fusion.

The invention discloses a wearable hand function rehabilitation training manipulator which comprises a manipulator fixing plate fixed on an arm. The manipulator fixing plate comprises a thumb rehabilitation mechanism and a four-finger rehabilitation mechanism, the thumb rehabilitation mechanism comprises a cylinder driving system and a thumb fixing device, the cylinder driving system is used for providing power, the thumb fixing device is connected with the cylinder driving system, the four-finger rehabilitation mechanism comprises a cylinder driving system and a four-finger fixing device, the cylinder driving system is used for providing power, and the four-finger fixing device is connected with the cylinder driving system. Four fingers except for a thumb are fixed on the same beam by the beam, the four fingers simultaneously move when the manipulator performs rehabilitation treatment, do not bear radial pull in the bending process and are prevented from being injured, more comprehensive rehabilitation treatment is performed for a hand by the aid of the independently arranged thumb rehabilitation mechanism, in addition, hand movement can be buffered by cylinder driving, the fingers are prevented from being injured due to sudden movement, and finger injury caused by the radial pull is avoided.

The invention discloses a multi-dimensional vision hand function rehabilitation quantitative evaluation system and an evaluation method. The system comprises an optical motion capturing device, a video capture device, a hand function quantitative evaluation system, an interactive touch screen and a collection platform, wherein the optical motion capture device acquires three-dimensional space data and motion vector information of each joint of fingers, a palms and each joints of a hand wrists in real time by an intelligent algorithm; the optical motion capture device outputs motion parameters which are then input into the hand function quantitative evaluation system, the hand function quantitative evaluation system preprocesses data, preprocessing results are screened and stored in a database, and by aiming at evaluation schemes of different evaluated motions, an evaluation result is provided. According to the multi-dimensional vision hand function rehabilitation quantitative evaluation system and the evaluation method, three-dimensional space parameter computation precision of hand joints of a patient can be improved; by combining a computer vision technology with optical intelligent motion capture, more precise quantitative rehabilitation evaluation data is provided, and assists to the a doctor to perform rehabilitation diagnosis on the patients.

The invention provides a double-feedback double-auxiliary hand function rehabilitation training system, which comprises an acquisition device, a multi-modal sliding mode self-adaptive rehabilitation training control center, a staged hand activity training device, at least one of a multi-sensor hand movement intention identification device and a brain neural pathway reconstruction visualization device, and at least one of a functional electrical stimulation (FES) electrode arrangement and stimulation device and a flexible bionic muscle assisting device. The double-feedback double-auxiliary handfunction rehabilitation training system provided by the invention is based on the brain science, the sensing technology, the multi-information fusion technology, the intelligent control, the robot bionic technology and the medical electrical stimulation technology, incorporates the subjective intention that the patient wants to recover into a rehabilitation training strategy, and adopts the internal-external double-feedback double-auxiliary hand rehabilitation training system. The double-feedback double-auxiliary hand function rehabilitation training system demonstrates the brain recovery, nerve reconstruction and muscle recovery of the patient in a visible manner.

The invention relates to a flexible driving hand rehabilitation device and a feedback control circuit thereof. The device includes a support and a metacarpal bone plate connected with the support; wherein an exoskeleton mechanism is fixedly connected with the metacarpal bone plate and corresponds to the positions of finger joints; a finger flexible driving mechanism is fixedly connected with the metacarpal bone plate; and the exoskeleton mechanism is connected with the finger flexible driving mechanism. The device is suitable for carrying out daily hand rehabilitation training for patients with impaired hand function, the structure is compact, reliability is high, the device is suitable for home rehabilitation training, because of its flexibility, portability and other characteristics, canmeet the needs of patients at home, and through intelligent control, can regulate the training mode of patients to a certain extent, so as to improve the effect of rehabilitation training.

A watch with an analog time display has at least one minute hand and one hour hand. This watch is moreover equipped with a fly back hand mechanism which has at least one minute fly back hand and/or hour fly back hand located coaxially to the hands of the normal time display. In the normal mode, the fly back hand or hands is/are moved synchronously with the hands of the normal time display and relative to them in an overlapping position. They can be stopped in a timer mode for marking of any instant of time and after expiry of any time interval, for again synchronously running with the hands of the normal time display. The actuated coupling of the fly back hand mechanism is located preferably non-coaxially to the axis of the motion work of the watch.

A Modular Upper Extremity Support System (MUESS) improves hand function by optimizing the balance of flexion and extension at the wrist and stabilizing thumb abduction. This is accomplished through a basic support unit of a forearm cuff, a wrist extensor strap, and a web spacer strap. Various components and inserts can be attached to the basic support unit. The MUESS has several interchangeable components, inserts, and attachments, which allow the hand therapist and other caregivers to make adjustments to the orthotic in real time to support various hand functions that are critical to activities of daily living such as grasping.

A helmet-type hands free system with a radio communication function is provided, in which a hands free function key input unit for executing a hands free function is mounted on a handle of a vehicle. Accordingly, it is possible to operate a hands free module without taking a hand off the handle and to establish radio communication between neighboring hands free modules without communicating with a base station. As a result, safer driving is possible and radio communication costs are reduced.

Methods of administering an injection are provided including methods of administering injections by individuals exhibiting deteriorated motor skills or impaired hand function. The method includes establishing a hand position about an injection device, including placing at least a one digit of a user' hand about the injection device and placing at least one other digit of a user's hand upon an actuator of the injection device. The hand position is substantially maintained while the injection device is manipulated and positioned to insert a needle at one end thereof into a portion of the user's skin. The hand position is substantially maintained while the user displaces the actuator of the injection device with the at least one other digit in a direction which is substantially transverse to an axis defined between a first end of the injection device and a second end of the device, the needle being located at the second end of the device.

The present invention provides an armband designed for wearing by a person who uses a hand prosthesis or a person with impaired hand function. The armband both stabilizes the attachment of the prosthesis thereby allowing pulling exercises that would otherwise be impossible and provides connection to exercise machines allowing the wearer to carry out exercises that would otherwise require the wearer to grasp an operational portion of the exercise machine. The armband is constructed from a sheet of flexible material that is sized to be wrapped around a wearer's arm enclosing substantially all of the arm and the wrist or base portion of any hand prosthesis. The wrapped armband is tightened by attached cinching straps and D-rings are provided attached to the surface of the armband for attachment of portions of exercise machines. An optional shoulder harness can be attached to the armband for additional stability.

The invention discloses a rehabilitative manipulator for hand burns and scalds, which comprises a mechanical finger, a palm rod, a mechanical wrist and a control system. The structure of the rehabilitative manipulator for the hand burns and scalds is adaptive to a human hand; and the manipulator can realize all degrees of freedom that the human hand has through driving, can guide knuckles and wrist joints to perform corresponding movement in the hand burns and scalds treating and rehabilitating process, exercises the joints and facilitates rehabilitating the skin elasticity, so that the hand functions of the rehabilitated palm are rehabilitated maximally. During the treatment, the manipulator can form variable distance between fingers, avoids forming a web structure, and solves the problems that fingers are respectively wrapped by thick gauze to avoid conglutination between the fingers in the conventional method, so airtightness of a wound surface is caused, the rehabilitation time is prolonged and the rehabilitation of the functions between the fingers is not facilitated. The rehabilitative manipulator for the hand burns and scalds has great significance for early rehabilitating hand functions, relieving the pain of burns and scalds patients, reducing treatment cost and the like.

The invention relates to a hand function rehabilitation training system based on Leap Motion and VR and an implementation method of the system. According to the hand function rehabilitation training system based on the Leap Motion and VR and the implementation method of the system, a sensing capture technology and a virtual reality technology are combined; Leap Motion hand movement tracking and high-precision finger recognition technology are adopted to acquire the motion data of the hand of a user, the motion data are mapped to an immersive virtual scene constructed by the VR so as to be applied to real-time interaction; and training tasks which are closed to daily life such as gesture training and finger control ability improvement training such as pinch by two fingers, grasp by a hand in a spherical shape, and grasp by a hand in a columnar shape can be set; and rehabilitation programs can be provided for users with hand dyskinesia caused by illness or injury. With the system of theinvention adopted, the interest and initiative of the user's in rehabilitation can be improved, the effect of the motor nerve function reconstruction of the user can be accelerated; and the current shortage of physician resources can be effectively alleviated.

The invention discloses a multifunctional hand rehabilitation training rectification device; a finger training four-link mechanism is provided, and comprises a plurality of support poles, a slide block and a column, wherein the slide block is arranged on the column, and driven by a power mechanism to move up and down; each support pole comprises an upper support rod and a lower support rod; the end of each upper support rod is hinged to the top of the column; one end of each the lower support rod is hinged to the middle portion of the upper support rod, and the other end is hinged to the slide block; the top of the column is a palm support portion, and provided with a palm fixing ring; the middle of each upper support rod is provided with a finger fixing ring. The multifunctional hand rehabilitation training rectification device is simple in structure, friendly in price, excellent in performance, can conveniently allow a patient to carry out hand rehabilitation rectification, and the hand function of the patient can be restored for certain level after using the multifunctional hand rehabilitation training rectification device for a period.

The invention provides a hand function rehabilitation training system. The system comprises a myoelectric signal collection module, a controller, a computer and a hand rehabilitation trainer. The myoelectric signal collection module is used for collecting bio-myoelectric signals of muscle of the hand of a patient; the controller is used for conducting signal processing on the myoelectric signals and transmitting the signals to the computer; the computer is used for setting training parameters of the hand rehabilitation trainer; the hand rehabilitation trainer comprises an index finger trainingmechanism, a middle finger training mechanism, a ring finger training mechanism, a little finger training mechanism and a thumb training mechanism, wherein the index finger training mechanism, the middle finger training mechanism, the ring finger training mechanism and the little finger training mechanism are fixedly arranged at the front end of an arm shell side by side, and the thumb training mechanism is fixedly arranged at the side end of the arm shell; a mechanical finger training mechanism builds communication connection with the computer and is used for receiving a training instructionsent by the computer and executing corresponding motions. The hand function rehabilitation training system is used for solving the problem that an existing rehabilitation training mechanical arm is complicated in installation and large in size, and a patient cannot wear or move the existing rehabilitation training mechanical arm conveniently, and the problem that mechanical arm joints are low inflexibility and bend and stretch rigidly, and thus the rehabilitation training effect is not obvious.