Prosthetic fingers made from silicone rubber can be colored and textured to look like a natural finger and can be attached to the remaining finger or nearby finger using suction or medical grade adhesive. They can help with grip and movement and provide cosmetic appeal.
A prosthesis is an artificial limb that is used in place of one that has been amputated. If a person is missing a finger, a prosthetic finger can help both recreate the natural look of an entire hand and can also be beneficial for grip and movement. Commonly made from silicone rubber, the finger can be colored and textured to look like a natural finger, and can be shaped to fit snugly over the finger stump and simply hold it through suction.
Prosthetic manufacturers may be able to model a prosthetic finger on a natural finger, if the opposite of the missing finger is still present in the other hand. It is necessary to take molds, both of the finger to be copied, and of the rest of the finger, if present. Alternatively, manufacturers can create a natural looking replica by taking into account the appearance of the remaining fingers or by making an educated guess about the more normal appearance relating to the person’s skin tone, age and gender. Typically, the most natural result is achieved by using silicone rubber as the material and the manufacturer applies the coloration of the painted surface under a variety of different light sources.
If the person has part of the finger left on the hand, the finger prosthesis can be attached over it. Usually, the end of the prosthesis is hollow and this fits over the rest of the finger. The simple suction holds the silicone rubber prosthesis on the rest of the natural finger. If the finger is completely absent from the hand, the finger prosthesis must be made in another way since it does not have the base of the finger as an anchor.
For example, a nearby finger can be used as a support for the new finger prosthesis. Cleverly, some artificial fingers are held onto the nearest finger and the prosthesis is then molded to the rest of the hand using medical grade adhesive. A finger prosthesis that holds more than one finger is also possible, and this can be extended to use the whole hand as an anchor.
Fingers are necessary for efficient manipulation of objects, and the addition of an artificial finger can be strong and stable enough to give back some of the hand grip that was previously impaired to the person. After the prosthesis is fitted, however, the person may need some time to learn how to use the hand properly. Cosmetic appeal is also an advantage of a finger prosthesis, if the person feels that the missing finger is too prominent a feature.
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