Samenstel omvattende een ring voor bevestiging in een door lichaamsweefsel omgeven doorgang alsmede een applicator voor het in de doorgang plaatsen van de ring.

摘要

The prosthesis has an anchor temperature control system. A prosthesis comprises a ring (8) with an anchor for securing it inside a passage surrounded by body tissue, especially blood- stream tissue, and an applicator (1) for placing the ring inside the passage. The anchor can adopt an anchoring position in which it protrudes beyond the ring and it comprises a shape memory material, e.g. shape memory metal or polymer, so that a spring force can be overcome to move it from the anchoring position into an insertion position. The anchor can be frozen when in the insertion position and when it exceeds a given temperature the spring force urges it back into the anchoring position. The distal part of the applicator includes a support for the ring. The prosthesis also has an anchor temperature control system which is used to increase the anchor temperature so that it moves back into the anchoring position.