Medical valve implant for implantation in an animal body and/or human body

A medical valve implant (10a, 10b) for implantation in an animal body and/or human body, comprising a base body (12a, 12b) that includes a collar (16a, 16b) extending in circumferential direction (14a, 14b), wherein the collar (16a, 16b) includes at least one first cell structure (18a, 18b) which is provided to form, in the intended end state, an intended inner cross section (24a, 24b) of base body (12a, 12b) that is matched to an intended outer cross section (20a, 20b) of an implant structure (22a, 22b). It is provided that the collar (16a, 16b) includes at least one second cell structure (26a, 26b; 28a, 28b; 30a, 30b) that can be moved relative to the at least one cell structure (18a, 18b), and at least one contact point (32a, 32b), wherein an outer contour (34a, 34b) of the base body (12a, 12b) is formed by the at least one first cell structure (18a, 18b) and at least the at least one contact point (32a, 32b) of the at least second cell structure (26a, 26b; 28a, 28b; 30a, 30b), and wherein the at least one contact point (32a, 32b) forms at least one extreme point (36a, 36b) of the outer contour (34a, 34b) relative to a geometric center of gravity (38a, 38b) of the base body (12a, 12b).