Abstract: A medical implant has a center axis and includes first and second flexible waved strands disposed around the center axis. The second flexible waved strand is in spatial communication with the first flexible waved strand to form a plurality of first unit shapes and a plurality of second unit shapes. Therein, the first unit shapes and the second unit shapes are staggered around the center axis. The first unit shapes are coupled to the second unit shapes to cause the first and second flexible waved strands to move substantially along the center axis. The first and second flexible waved strands together define a self-anchoring configuration in a radial direction perpendicular to the center axis so that a ratio of a von Mises stress to an axial displacement of the medical implant during an implant compression of the medical implant is greater than 0.1 and less than 30.

Abstract: A recombinant vector, transgenic fish egg using the same and biomaterial using the same are applied to provide a transgenic fish that secreting recombinant human procollagens or collagens, and further to provide the biomaterial having the recombinant human procollagens or collagens and extract the recombinant human procollagens or collagens from the part(s), having the recombinant human procollagens or collagens, of the transgenic fish.