65 results about "Finger flexion" patented technology

There is a digit splint for treating injury to a finger 12. The splint includes a plurality of position adjustable segments 1A, 1B, 1C arranged end-to-end on a connecting linkage 2, 3 to form an elongated support securable along the dorsal or ventral surfaces of the finger. The segments are slidable on the linkage relative to one another in the longitudinal direction so that the splint can be adjusted to suit different finger lengths. The connecting linkage is deformable to put the finger in flexion for a phalangeal fracture or extension for a mallet finger injury.

A basketball training aid designed to teach a user how to correctly grip, set up, and release a basketball. The device includes a material that wraps around the top (prone side) of the hand and bottom half of the underside (supine side) of the hand, without limiting wrist extension and flexion during a basketball shot. The glove includes a splint support material on top of the index, middle, and ring fingers, running from the middle of the digits to the bottom half of the top (prone side) of hand. The splint support material prevents premature finger flexion at the base of the fingers during the release of the shot, ensuring an open hand at follow through. Additionally, the design encourages proper finger separation and proper extension of wrist joint on set up, keeps the ball off the palm of the hand, and promotes proper position for dribbling a basketball effectively.

A power assistive device for hand rehabilitation that provides training of a combined movement of finger flexion-extension and forearm supination-pronation to a user. The power assistive device includes a hand brace and a base. The hand brace includes finger assemblies that adjustably connect to a platform, actuators that connect to the finger assemblies, and strain gauge sensors that connect to the finger assemblies and detect force signals generated by movement of the finger assemblies. The base removably connects to the hand brace and includes a forearm support, a C-shaped ring that includes C-shaped tracks formed along an inner circumferential surface of the C-shaped ring, a rotatable platform that moves along the C-shaped tracks, a mounting platform that connects to the rotatable platform, and an electromyography (EMG) sensor that attaches to the forearm of the user and senses EMG signals generated by movement of the hand of the user.

A functional exercise glove includes a dorsal-side layer having in-plane resistance to stretch in the longitudinal direction of the glove that is greater than its in-plane resistance to stretch transverse to the longitudinal direction. At least one fingertip member transfers an extension/flexion force from a user's finger to the dorsal-side layer upon flexion of the finger. The glove is configured to react the extension/flexion force from the dorsal-side layer into at least one of the heel of the user's hand or the user's wrist. The dorsal-side layer resists extension from flexion of the fingers thereby working finger, hand, wrist, forearm muscles, tendons, ligaments, bones, and nerves specific to natural movement patterns. The exercise glove can be used during a job function, regular activity, and while playing a sport like golf, tennis, etc.

An apparatus for passive contraction of at least one finger of a patient with an upper arm unit, a lower arm unit, and at least one connective line. The apparatus is configured such that elbow extension of the patient promotes finger flexion. This is accomplished by taking advantage of the geometry of the arm, where the distance from a point on the patient's humeral area to the patient's fingers is greater when the patient's arm is in extension than when it is in flexion. In one aspect, the upper arm unit is configured to connect to a portion of the patient's arm between the patient's elbow and shoulder and the lower arm unit is configured to connect to a portion of the patient's arm intermediate the patient's hand and elbow.

A portable work capacities testing apparatus, and a method using that portable apparatus, are disclosed. The apparatus comprises a host computer 110, a dynamic strength and lifting device 120 releaseably interconnected with the host computer, a hand grip strength device 130 releaseably interconnected with the host computer, a finger pinch strength device 140 releaseably interconnected with the host computer, a forearm/wrist strength device 150 releaseably interconnected with the host computer, a handling/proprioception device 190 releaseably interconnected with the host computer, a finger flexion device 180 releaseably interconnected with the host computer, a whole body coordination device 170 releaseably interconnected with the host computer, and a strength push/pull/lift device 160 releaseably interconnected with the host computer.

An apparatus for passive extension and flexion of at least one finger of a patient with an upper arm unit, a lower arm unit, and at least one connective line. The apparatus is configured such that elbow extension of the patient promotes finger flexion. This is accomplished by taking advantage of the geometry of the arm, where the distance from a point on the patient's humeral area to the patient's fingers is greater when the patient's arm is in extension than when it is in flexion. In one aspect, the upper arm unit is configured to connect to a portion of the patient's arm between the patient's elbow and shoulder and the lower arm unit is configured to connect to a portion of the patient's arm intermediate the patient's hand and elbow.

The invention provides a wrist and finger rehabilitation trainer capable of adjusting bending angle of fingers. The wrist and finger rehabilitation trainer capable of adjusting bending angle of fingers comprises an arm connecting frame, a palm connecting frame and a finger fixing device. Two wrist connecting plates fixed on the upper and lower sides of the arm connecting frame are rotatably connected with the rear end of the palm connecting frame. A servo motor is fixed on the arm connecting frame through a motor frame. A drive rod and a second pulley are fixed on a output shaft of the servomotor. The second pulley drives a first pulley through a belt. The first pulley fixedly penetrates through a rotating shaft. The rotating shaft fixes the palm connecting frame. A sliding rod is installed on the drive rod in a sliding mode. And the position of the sliding rod is fixed. The drive rod is connected with the finger fixing device through three crank connecting rod mechanisms in series connection. An increase or decrease in bending degree of four fingers relative to wrist movement amplitude is realized by adjusting the fixing position of the sliding rod on the drive rod, so that thewrist and finger rehabilitation trainer is suitable for different patients or patients at different rehabilitation stages.

The invention discloses a device for measuring finger flexion and extension muscle force accurately. A finger bearing fixed screen plate is arranged on an ergometer fixed platform, and the ergometer fixed platform and the finger bearing fixed screen plate form a U-shaped structure; a wrist and palm bearing fixed screen plate which is in an upper-and-lower layer screen plate structure is arranged below a recess of the U-shaped structure; an ergometer is fixedly connected with an ergometer fixed plate which is connected with the ergometer fixed platform; and fastening nails which are inserted in the finger bearing fixed screen plate and the wrist and palm bearing fixed screen plate and used for limiting wrists, palms and fingers are arranged. The device is reasonable in structure, convenient to use, accurate in measurement and good in working performance; and measured finger flexion and extension strength reference values of normal people are of important value to condition evaluation, preoperative evaluation and the like.

A portable work capacities testing apparatus comprising a portable computer, a hub releaseably interconnected with the portable computer, a dynamic strength and lifting device releaseably interconnected with the hub, a hand grip strength device releaseably interconnected with the hub, a finger pinch strength device releaseably interconnected with the hub, a forearm/wrist strength device releaseably interconnected with the hub, a handling/proprioception device releaseably interconnected with the hub, a finger flexion device releaseably interconnected with the hub, a whole body coordination device releaseably interconnected with the hub, and a strength push/pull/lift device releaseably interconnected with the hub.

A hand function rehabilitation exercise device is used for palm and finger flexion and extension exercise in a function recovery period in hand wound treatment and overcomes the shortcoming that in the prior art, auxiliary devices for function rehabilitation exercise after hand wounding are lacked and positive effects of function exercise cannot be brought into full play. The hand function rehabilitation exercise device comprises a palm sleeve not including finger parts, pressure or induction switches, a pressure or induction switch connection times digital display, a display digital resetting switch, a single-chip microcomputer, a small battery or an external power source plug hole or a power switch, wherein the pressure or induction switches are installed at the contact positions of finger tips at the palm center on one side of a palm of the palm sleeve, the pressure or induction switch connection times digital display is installed on the palm sleeve, the single-chip microcomputer is installed on the palm sleeve to process pressure or induction switch connecting signals into accumulative digital display on the display, and the small battery or the external power source plug hole is installed on the palm sleeve. By utilizing the exercise device, patients can be obliged to automatically perform flexion and extension exercise in the function rehabilitation period of the wounded hands and can master information relevant with finger bending times and time in the exercise process at any time. The hand function rehabilitation exercise device is an auxiliary treatment device having obvious effects for rehabilitation of the wounded hands.

The invention relates to a tendon transmission artificial hand comprising a drive part, a finger transmission part, a thumb transmission part and a palm cavity. The drive part is arranged inside the palm cavity and is provided with a drive motor, a transmission mechanism and a main drive shaft, and the finger transmission part and the thumb transmission part achieve finger flexion and extension movement through transmission wheels, transmission tendons and rotary shafts. The flexion and extension movement of three fingers can be achieved only by one motor, and compared with an artificial hand using more motors, the weight of the tendon transmission artificial hand is reduced. Meanwhile, the movement of the fingers is achieved mainly through a tendon transmission mechanism, and the machining cost of the tendon transmission parts is low, so that the cost of the artificial hand is lowered, and the artificial hand better adapts to requirements of consumers. In addition, as the drive parts are arranged in the palm cavity, wrist activities are not affected, and practicability of the artificial hand is enhanced.

A safety glove having a protective member or insert extending around the fingertip of the safety glove is provided. The protective member may be positioned along the outer surface or the inner surface of the glove. Alternatively, the protective member may be integrally formed between two layers of glove material. The protective member terminates distally from an interphalangeal joint line to enable finger flexion in order to grasp an item, such as a slab of meat to be deskinned in a skinning machine. The glove may include a rough outer surface formed from thrice dipping the glove and allowing the glove to cure. Additionally, the glove may have a width near the wrist that is wider than the width near the palm to enable the glove to be rapidly removed (i.e., doffed) in an emergency event of the glove getting caught in a rotating blade on the skinning machine.

The invention provides a finger rehabilitation device, and relates to the technical field of rehabilitation instruments. The technical problem of one of finger flexion motion and back extension motioncompleted by the finger rehabilitation device is solved. The finger rehabilitation device includes a fixing part, a motion assembly and a power part; the fixing part is connected with a wrist for fixing, and the power part is connected with the fixing part for fixing; the motion assembly is fixed to a palm and/or a finger, and the motion assembly is driven by the power part and capable of drivingthe finger to perform flexion motion and/or back extension motion through an aerodynamic and/or tensile effect; the motion assembly includes an air bag glove, and the air bag glove is provided with an airtight ring at the contact position between each finger and the palm; the air bag glove sleeves outside the finger, and the air bag glove can enable the finger to perform back extension motion under the action of gas pressure after the power part inflates the airtight ring. The finger rehabilitation device realizes finger flexion motion and back extension motion, and the rehabilitation effectis better and safer.

The invention discloses finger movement function rehabilitation apparatus driven by shape memory alloy wires, and belongs to the field of finger rehabilitation. The apparatus is composed of the shapememory alloy wires, ropes, an alloy wire connecting terminal, an inner-layer fabric, an outer-layer fabric, range extending mechanism supports, rings, and other parts. When the shape memory alloy wires are powered on, the temperature rises under the current heat effect to generate phase changes, the contraction is generated, then the ropes are pulled, and fingers are driven to bend and stretch. The fabrics on the inner layer and the outer layer have good elasticity, and the tightness degree of the whole fabric can be adjusted in cooperation with Velcro on an arm. In addition, a proper amount of silica gel is placed between each layer of fabric to improve the wearing comfort of the apparatus. A length of the alloy wires extending out of the connecting terminal at the tail end is adjusted toadapt to different finger lengths, so that the requirement of ergonomics is better met. The three Velcro are located on the wrist, the forearm close to the elbow, and the big arm close to the elbow respectively. The three Velcro can enable the rehabilitation apparatus to be better attached to the shape of the arm of the human body, so that range extending mechanisms more efficiently use the phasechange contraction of the SMA wires to drive the fingers to bend and stretch, and thereby the better rehabilitation effect is achieved.

The invention discloses a hand rehabilitation exercise device for elderly patients with cerebrovascular diseases. The hand rehabilitation exercise device comprises a hollow cubic base body, a trainingcomponent arranged on the surface of the base body, a dustproof sterilization cover and a control component. The training component comprises a finger flexion and extension training component, a finger massage training component and a grip training component, which are respectively arranged on the front wall, the top wall and the left wall of the base body. The dustproof sterilization cover comprises three square cover surfaces, and can cover the three corresponding training components on the base body. The control component arranged in a hollow cavity of the base body is electrically connected with each training component and the dustproof sterilization cover. The hand rehabilitation exercise device for the elderly patients with the cerebrovascular diseases has the advantages that single-finger training, overall hand pressure training and grip training are integrated, so that the device is multifunctional to meet training needs of the patients.

The invention relates to an artificial hand. The artificial hand comprises a palm main body, a driving unit, finger units and a thumb unit, wherein the driving unit is arranged in the palm main body, and comprises a reducing motor, a transmission mechanism and a driver board; the finger units and the thumb unit realize finger flexion and extension through link structures and a hinge connection mode; the thumb unit realizes adduction and abduction of a thumb through a worm and worm gear meshing transmission mechanism. According to the invention, flexion and extension of three fingers can be realized only through one motor, so that compared with an artificial hand with multiple motors, the artificial hand is lighter. Moreover, as the link structures which are relatively low in machining cost are mainly used for movement of the fingers, the cost of the artificial hand is lowered, and the artificial hand better meets the requirements of consumers. In addition, as the driving parts are all arranged in the cavity of the palm, movement of the wrist is not influenced. The artificial hand provided by the invention can perform various frequently used movements in daily life, so that the practicability is enhanced.

The invention belongs to the technical field of bionic robots, and particularly relates to a pneumatic artificial muscle driven bionic arm. The arm comprises a large arm, an elbow joint, a small arm,a wrist joint, a hand, an elbow joint flexion and extension drive mechanism, a wrist joint flexion and extension drive mechanism, a wrist joint self-rotation drive mechanism and a finger flexion and extension drive mechanism; the elbow joint flexion and extension drive mechanism is arranged in the large arm, and is used for providing power for flexion and extension of the elbow joint, the wrist joint flexion and extension drive mechanism is arranged in the small arm, and is used for providing power for flexion and extension of the wrist joint, and underactuation is formed; the wrist joint self-rotation drive mechanism is arranged in the small arm, and is used for providing power for self rotation of the wrist joint; the finger flexion and extension drive mechanism is arranged in the wristjoint and is used for providing power for flexion and extension of the five fingers. The bionic arm is simple and compact in structure, flexible transmission is adopted, the mass is small, the cost islow, modular design is achieved, detaching and replacing are easy, and the beneficial effects of being high in integration, multiple in freedom degree, small and exquisite, flexible, similar to the arm of the adult, good in stability and the like are achieved.

The invention discloses an exoskeleton hand rehabilitation robot based on finger function importance, and relates to the field of medical rehabilitation instruments. A thumb rehabilitation module, a wrist rehabilitation module, a four-finger rehabilitation module, a local vibration stimulation module and a base are included; the wrist rehabilitation module is fixed to the base through bolts; the thumb rehabilitation module is fixed to the wrist rehabilitation module; the four-finger rehabilitation module is fixed to the wrist rehabilitation module; the local vibration stimulation module comprises a palm vibration stimulation module and a wrist vibration stimulation module. According to the exoskeleton hand rehabilitation robot, a local vibration stimulation training theory is introduced, acreative six-rod mechanism is used for performing four-finger flexion and extension motions, four-finger MP and PIP linkage flexion and extension are conformed to finger moving trajectories while thedriving force demand of increasing the muscle tone of paralyzed fingers is ensured, the rehabilitation moment and moving range demands of a wrist joint are ensured, and therefore the fingers and thewrist can perform synergistic motion rehabilitation training.

The invention belongs to the field of rehabilitation medical equipment, and in particular relates to a tail end traction-type finger rehabilitation robot. The robot includes a fixing seat, a power drive component and finger flexion and extension mechanisms; the power drive component includes a servo motor, a torque sensor connected with the output shaft of the servo motor, a driving belt pulley component coaxially connected with the torque sensor, an encoder connected with the driving belt pulley component, and driven belt pulley components connected with the driving belt pulley component through asynchronous belts; and each finger flexion and extension mechanism includes an electric push rod, a fingerboard, sliding grooves arranged in the fingerboard, a thumb connector, a first thumb connecting rod, a second thumb connecting rod and finger sleeves. According to the robot, one servo motor drives the four synchronous belts to move, and the movement trajectory is limited through the sliding grooves in the fingerboard to realize the flexion and extension movement of fingers; and the torque sensor accurately collects and feeds back the force signal of a hand of a patient to judge the movement direction desired by the patient, so that the safety of the patient during rehabilitation training is more ensured.

The invention relates to a finger rehabilitation exercise system, and belongs to the technical field of finger rehabilitation. The system comprises finger rehabilitation gloves, an air pump and a muscle detection controller, wherein each finger bending expansion joint is arranged at each finger of the corresponding finger rehabilitation glove, and the finger separating motion expansion joints connected with all the fingers are arranged between the fingers of the finger rehabilitation gloves; the five finger bending expansion joints and a finger separating motion expansion joint are respectively connected with an air pump through air pipes which are distributed at the finger rehabilitation gloves along the length direction of palms; an electromagnetic valve is arranged between each expansion joint and the air pump and is used for connecting and disconnecting an air path; and an electric signal sensing electrode is arranged at the palm center of the corresponding finger rehabilitation glove, and the electric signal sensing electrode, the electromagnetic valve and the air pump are connected with a muscle detection controller. The finger rehabilitation glove can be controlled to achieve finger adduction bending or finger separation (pushing away) movement, and finger buckling or finger separation (recycling) movement, the finger movement condition can be monitored and analyzed, anda patient can conduct comprehensive rehabilitation training conveniently.