Prosthesis
The invention relates to prostheses for amputated patients. The shaft of the prosthesis has an outer shell and a concentric inner shell. Both shells are provided with longitudinal slits which are staggered in relation to each other and extend essentially in an axial direction. The diameter of the shaft of the prosthesis can be adjusted by tightening elements. An adaptor is fixed in the shaft of the prosthesis in such a way that the height of the adapter can be adjusted. A conical bearing surface for the stump of the limb is provided on the upper side of the adapter, a holding element for fixing an artificial limb is provided on the lower side of the same, and a coupling is provided inside the adapter for detachably fixing the coupling pin of a commercially available silicone liner.
1. A prosthesis comprising:
a silicone liner having a coupling pin;
a prosthesis shaft for being fitted to a limb stump and provided with longitudinal slits in a portion thereof, the prosthesis shaft being adjustable in diameter by tightening elements; and
a holding element for connecting an artificial limb with the prosthesis shaft,
wherein the prosthesis shaft has a concentric band circumferentially attached thereto, the concentric band having a cylindrical adapter height-adjustably installed therein,
wherein the adapter includes a bearing surface at an upper end thereof for receiving the limb stump or the end of the silicone liner and a holding element at a lower end, and
wherein the adapter includes in an interior portion a coupling for detachably securing of the coupling pin at the upper end and mechanics for detaching the coupling.
2. The prosthesis according to claim 1 , wherein edge surfaces of the prosthesis shaft that are formed by the longitudinal slits are at least partially spanned by a flexible material, which forms ripples or folds.
3. The prosthesis according to claim 1 , wherein:
the prosthesis shaft is formed by an inner shell and an outer shell that are concentric,
an inner surface of the outer shell is essentially the same as an outer surface of the inner shell,
the longitudinal slits of the outer and inner shells are staggered in relation to each other,
the diameter of the inner and outer shells are mutually adjustable by a tightening element, and
the outer and inner shells contain the concentric band.
4. The prosthesis according to claim 3 , wherein the inner and outer shells are made of fiber-reinforced plastic.
5. The prosthesis according to claim 4 , wherein the reinforced fibers extend essentially in an axial direction.
6. The prosthesis according to claim 4 , wherein the fiber-reinforced plastic is carbon fiber-reinforced plastic.
7. The prosthesis according to claim 3 , wherein the longitudinal slits in the outer shell and/or the inner shell are at least partially bridged by a rubber-like material.
8. The prosthesis according to claim 7 , wherein the rubber-like material is silicone rubber.
9. The prosthesis according to claim 3 , wherein the inner shell, the outer shell, the adapter, and the clamp ring are safeguarded against contortion.
10. The prosthesis according to claim 1 , wherein:
the coupling pin is a smooth cylinder, and wherein the coupling comprises:
a clamp plate with an opening, which is fitted for the coupling pin;
an axis, on which the clamp plate is pivotally positioned; and
springs, which pivot the clamp plate into a clamp position.
11. The prosthesis according to claim 10 , wherein the adapter includes two parts, and wherein the axis simultaneously serves as a connection element.
12. The prosthesis according to claim 10 , wherein the mechanics for detaching the coupling include a manual lever, and wherein the manual lever is foldable.
13. The prosthesis according to claim 1 , wherein the concentric band is elastically slitted.
14. The prosthesis according to claim 1 , wherein a clamp ring is mounted onto the concentric band.
15. The prosthesis according to claim 14 , wherein the clamp ring has a flange for mounting clamp screws.
16. The prosthesis according to claim 1 , wherein the tightening element has a tightening band with a toggle latch closure.
17. The prosthesis according to claim 1 , wherein the tightening element has a length adjustment.
18. The prosthesis according to claim 17 , wherein the tightening element is manually operable.
19. The prosthesis according to claim 1 , wherein the tightened by the tightening elements.
20. A prosthesis comprising:
a prosthesis shaft for receiving a limb stump, the prosthesis shaft including an inner shell and an outer shell that has longitudinal slits provided therein for enabling a diameter adjustment of the prosthesis shaft about the limb stump; and
an adapter being height adjustably and securely attached to the prosthesis shaft at an upper end of the adapter, the adapter having a holding element provided on a lower end for attachably receiving an artificial limb, and the adapter having a coupling for releasably securing a coupling pin, the coupling pin being connectable to the limb stump.
21. The prosthesis according to claim 20 , wherein a tightening band, which is provided substantially circumferentially about the prosthesis shaft, enables the diameter adjustment.
22. The prosthesis according to claim 20 , wherein the height of the adapter, in relation to the prosthesis shaft, is adjusted by an adaptive securing of the adapter via an adjustable concentric band that is fixedly provided on the prosthesis shaft.
23. The prosthesis according to claim 20 , wherein the pin is connectable to the limb stump by a silicon liner.