Open helical organic tissue anchor and method of...

A - Human Necessities – 61 – B

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A61B 17/04 (2006.01) A61B 17/064 (2006.01) A61B 17/86 (2006.01) A61F 2/08 (2006.01) A61B 17/00 (2006.01) A61B 17/80 (2006.01)

Patent

CA 2230063

The invention relates to a tissue anchor (10) which is an open helix (12) of biocompatible material having a slope of from 0.5 turns per centimeter to 10 turns per centimeter, a length from 3 mm to 75 mm, a diameter of from 1.5 mm to 11 mm, and an aspect ratio of from about 3 to about 5 to 1. The anchor can have a head (17) which is capable of securing or clamping tissue together, such as holding a suture in hole (19) to secure a ligament or tendon (28) to bone. The anchor can also have a head which causes an inward, compressive loading for use in fastening bone to bone, orthopedic plates to bone, or cartilage to bone.

La présente invention a pour objet une pièce d'ancrage pour tissu (10) constituée d'une hélice ouverte (12) fabriquée dans une matière biocompatible et dont le nombre de tours par centimètre est compris entre 0,5 et 10 tours, la longueur est de 3 mm à 75 mm, le diamètre de 1,5 mm à 11 mm et le rapport de forme compris entreenviron 3 à environ 5 sur 1. La pièce d'ancrage peut comporter une tête (17) capable de fixer ou de tenir serré le tissu à maintenir, par exemple de maintenir une suture dans une perforation (19) pour permettre de fixer un ligament ou un tendon (28) à un os. Ladite pièce d'ancrage peut également comporter une tête qui entraîne une charge de compression vers l'intérieur, utile pour fixer un os à un autre, des plaques orthopédiques à un os, ou un cartilage à un os.

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