| 摘要 |
A prosthesis shaft (2) is provided with an annular chamber (15) that is located at a distance from its distal end. The annular chamber is formed on the interior of the prosthesis shaft by an adaptable wall (18), which is designed to lie against the exterior of an amputation stump (25). The area between said adaptable wall and the hard prosthesis shaft is aerated by the atmosphere, which causes the adaptable wall to be pressed against the stump by a self-reinforcing, sealing contact force, when a negative pressure arises between the wall and the distal end in the distal region of the prosthesis shaft.
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