Uses and common problems of cosmetic prosthetic hands

What is a fake finger? A fake finger is a beautiful prosthetic hand made of imported medical silicone material. Fake fingers are consumables, similar to the shoes and socks you buy in the market. What you need to pay attention to is don't pull it hard when you wear it. Every detail of yours is directly related to the life of the finger. The length of the service life also depends on the degree of your maintenance and cherishment, the longer the good service life of your maintenance and cherishment. 1. Does the fake finger have auxiliary functions? For example, is it okay to hit the keyboard or something? Our normal fingers have phalanges inside so they can transmit power to hit the keyboard. If there are not many finger defects, such as a small fingertip joint, this is no problem. If there are too many defects, it can only be used to compensate for the incompleteness of a finger. It has no substantive function and only plays a beautiful role. If you must install a prosthetic hand and want to realize the function of typing on the keyboard, you can install a myoelectric prosthetic hand. What is a myoelectric prosthetic hand? When the patient’s residual limb muscles contract, complex biochemical reactions will occur, and a small potential difference that can be measured is generated on the skin surface. This myoelectric potential difference signal is transmitted to the microsensor and passed through the electrode. The amplifier is amplified and becomes a control signal, which is input to the microcomputer, and then the microcomputer sends out the movement instructions, and drives the prosthetic phalanx joint to expand and close through the driving system such as the micromotor. The key to assembling a myoelectric hand is to find from the skin surface of the residual limb that the forearm amputee produces the strongest electromyographic voltage when retracting the extensor and flexor muscles, and the upper arm amputee contracting the biceps and triceps. Two points of the signal, and measure the voltage values at these two points, and then adjust the signal amplification signal of the electrode amplifier reasonably, and at the same time train the residual limbs regularly according to the activity intention according to the patient’s residual limbs. Staying, so as to effectively control and manipulate the expansion and closing of the prosthetic phalanx joints with the different motion forms of the residual limb muscles, and automatically adjust the size of the prosthetic hand grip and the opening and closing speed with the dynamic adjuster. Due to the extremely high sensitivity of the myoelectric hand, after training, it can make the patient control freely, and assist a good hand in doing things that one hand can’t do, such as washing the face, wringing out the towel, putting on clothes, writing, tying shoelaces, holding a spoon Soup and so on. If you continue to learn and exercise in your life, you can play its greatest function. The myoelectric hand is equipped with a 180-degree rotation and anti-vibration device, so when riding a motorcycle or doing other activities, no vibration force will be transmitted to the arm and cause soreness. There is a permanent replacement battery between the inner tube of the prosthesis and the palm (built-in battery, externally replaceable), and is equipped with a charger, which only needs to be removed before going to bed every night. Use 2 — 3 days, generally can be used for more than one day. The forearm myoelectric hand is a suspended prosthesis without bone condyle, which makes it extremely convenient and comfortable for patients to wear. The exterior is equipped with imported silicone hand skin to make it have a realistic appearance. The upper arm myoelectric hand is also equipped with elbow flexion like the upper arm prosthesis. The auxiliary device makes the elbow joint have flexion and extension function and can be locked at different flexion and extension angles. 2. Is the color of the prosthetic hand the same as the skin? The color cannot be the same as the skin color, it can only be as close as possible. Because the color of our human body's skin changes with temperature. The pigments of the same finger are all different, even smaller than the tip of a needle. We can only say that as close as possible to the color of your finger itself, we have a variety of color palettes for everyone to refer to. 3. How to wear it? The fake finger is put on directly like a glove. The incomplete part of our newly made finger is filled with foam. After you receive our finger. You need to take out the foam inside, then cut it according to your needs, and then put it on. 4. Questions about seams and thickness? The finger prosthesis is directly put on the residual limb, so there must be a seam at the very end after putting it on. This is unavoidable, but friends can use a wider ring to block. It is impossible to make a finger prosthesis very thin. If it is made very thin, it is easy to wear and break, so in order to ensure the strength, it must have a certain thickness, and because the finger prosthesis is put on the residual limb, and the residual limb is often the uninfected side The thickness of the fingers is different, and even thicker than the same part of the uninfected finger. Therefore, after wearing the finger prosthesis, it will generally be thicker than the uninvolved finger. The longer and thicker the stump, the greater the difference. Finger prosthesis is a relatively beautiful product that cannot be absolutely lifelike. The condition of each person's residual limb is different, and the effect produced will vary from person to person.