| 摘要 |
A novel way of locking and unlocking an adjustment device for an artificial leg or arm makes it possible to perform an adjustment of the prosthesis, without necessitating disassembly of the prosthesis or the removal of the prosthesis from the patient. This facilitates the work in adjusting the translatory position and the angular position, and the adjustment device also offers a further degree of freedom by the addition of the possibility of distal adjustment. The novel combination provides a locking ring (40) on the adjustment head. The locking ring offers a stable, adjustable locking of the adjustment head against a coupling sleeve (50) on the stump, while at the same time fixing the translatory position of the prosthesis. The prosthesis is then provided with a stable, adjustable setting of the distal length of the prosthesis by means of the locking ring (40), which greatly facilitates fine adjustment of the length of the prosthesis, since there is no need to disassemble the prosthesis for performing such a distal length adjustment. The angular adjustment is carried out by means of a pyramid adapter pin (23) which is arranged either in the upper, or in the lower part of the adjustment head. Inclined adjustment screws corresponding to the inclined sides of the pyramid adapter pin are arranged in the corresponding upper or lower part of the adjustment head. The arrangement allows a simple way of disassembling the adjustment head in two parts. |
