Endoprosthesis comprising a plurality of cells (500), each of said plurality of cells consisting of six loops, in which: a first element (501) has a first end (502) and a second end (503)； a second element (504) has a first end (505) and a second end (506)； said first end (502, 505) and said second end (503, 506) of each of said first element (501) and said second element (504) include a curved part (535), said curved part (535) communicating said first end (502) of said first element (501) with said curved portion (535) of said first end (505) of said second element (504) forming a first loop (550) of six loops of each cell； a third element (507) has a first end (508) and a second end (509)； a fourth element (510) has a first end (511) and a second end (512)； a fifth element (513) has a first end (514) and a second end (515)； a sixth element (516) has a first end (517) and a second end (518)； a seventh element (519) has a first end (520) and a second end (521)； an eighth element (522) has a first end (523) and a second end (524)； and said first end (508, 511, 514, 517, 520, 523) and said second end (509, 512, 515, 518, 521, 524) of each of said third element (507), said fourth element (510 ), said fifth element (513), said sixth element (516), said seventh element (519) and said eighth element (522) include a curved part, said curved part communicating of said second end (506) of said second element ( 504) with said curved part of said first end (508) of said third element (507), said curved part of said second end (509) of said third element (507) with said curved part of said first end (511) of said fourth element (510) forming a second loop of six loops of each cell, said curved part of said second end (512) of said fourth element (510) communicating with said curved part of said first end (514) of said fifth element (513) that forms a third loop of six loops of each cell, said p communicating curved art of said second end (515) of said fifth element (513) with
