Myoelectric hand semipalmate palm
A hand-held and myoelectric technology, applied in medical science, prostheses, etc., can solve the problems of long total length, wrist separation, amputation length can not be too short, etc., to achieve the effect of reducing the cumulative error of installation and ensuring the accuracy requirements
Inactive Publication Date: 2012-08-15
DANYANG PROSTHESES FACTORY
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Problems solved by technology
[0003] However, so far, myoelectric hands have common limitations in this installation, that is, there are certain restrictions on the residual limbs of patients with prosthetics, that is, the length of amputation cannot be too short, because the length of prosthetic hands generally exceeds 12 cm long, if the length of the residual limb is too short, the total length of the prosthetic hand will be very long after installation, which will affect the appearance
At present, in terms of prosthetic hand installation in China, the shortest residual limb can only reach the severed wrist, and it is impossible to install the prosthetic hand for patients who have cut off the palm
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[0025] Depend on figure 1 It is a schematic diagram of the structure of this embodiment. The myoelectric half-palm hand includes the thumb 1 and fan gear 2, hand frame 3, connecting rod 4, finger cot 5, index finger and middle finger 6, and planetary reducer 7 that form the hand. The planetary reducer 7 is fixedly arranged on On the speed reducer seat 3-1 of the hand frame 3, the index finger and the middle finger 6, the sector gear 2 are movably connected with the hand frame 3 through the connecting rod 4, the index finger shaft and the retaining ring, and the thumb 1 and the sector gear 2 , is movably connected with the hand frame 3 through the anti-rotation shaft of the thumb.
[0026] Depend on figure 2 Know, is to provide the myoelectric half-hand power source of the present invention, is the planetary reducer 7, and its main feature is self-locking mechanism. The planet carrier 7-3 is actually a Φ19 disc, on which two limit pins 7-5 are installed, the limit pins are ...
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The invention relates to a myoelectric hand semipalmate palm having a primary element, i.e. a hand rack. The primary element is structured into bearing force and a moment of force and can bear components of a first finger, a middle finger, a thumb, an end cover, a connecting rod, a first finger shaft, a thumb shaft, a planet retarder, an elevating arc, a transition gear, a check ring which form the palm, and also a palm bottom. The invention is characterized in that the planet retarder is a retarder with a self-locking mechanism, a planet frame is a disc provided with two spacer pins, the spacer pins are inserted in open slots of an upper slider and a lower slider, and an output tooth shaft is meshed with two racks in the upper and lower sliders. The hand rack is structured into an integral form, and compared with a traditional palm, the distance from the palm of the planet retarder to the bottom of the palm is greatly reduced in order to control the overall height within 9 cm, thereby ensuring the demands on the precision of the gear installation center distance and reducing installation accumulative errors.
Description
technical field [0001] The invention relates to the artificial limb field of rehabilitation engineering, in particular to a myoelectric hand half-palm structure. Background technique [0002] With the development of society, various industrial accidents and traffic accidents continue to occur, and various disabled people continue to appear. How to improve the quality of life and work of these disabled people, especially to improve the quality of life of those without hands Social responsibility, the emergence of various artificial limbs has indeed brought great convenience to the disabled, enabling them to live, work and study like normal people. The most practical significance in terms of upper limbs is the prosthetic hand with the function of opening and closing and the function of picking up objects. [0003] However, so far, myoelectric hands have common limitations in this installation, that is, there are certain restrictions on the residual limbs of patients with pros...
Claims
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IPC IPC(8): A61F2/56
Inventor 傅丹琦
Owner DANYANG PROSTHESES FACTORY