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Method of fastening a soft tissue graft in an opening provided in a human or animal bone and fastener suitable for the method

一种紧固机构、移植物的技术，应用在固定器、扣紧器件、内部骨合成等方向

Inactive Publication Date: 2014-04-02
SPORTWELDING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But if the additional external fixation is not removed as soon as possible after the main surgery, this known additional external fixation especially on the anterior side of the tibia with washer / screw fixation can be problematic due to the small soft tissue coverage

Method used

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  • Method of fastening a soft tissue graft in an opening provided in a human or animal bone and fastener suitable for the method
  • Method of fastening a soft tissue graft in an opening provided in a human or animal bone and fastener suitable for the method
  • Method of fastening a soft tissue graft in an opening provided in a human or animal bone and fastener suitable for the method

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Embodiment Construction

[0041] figure 1 Shows a first embodiment of the method and fastening mechanism according to the invention and shows five successive stages (a) to (e) of the method process, in which the end of the graft, the fastening mechanism and the bone tunnel are axially sectioned Open mode is shown, and the graft will be secured into the bone canal. The fastening mechanism 4 / 5 comprises a press fit 4 and a separate anchor 5 . Only one opening of a bone tunnel, such as the tibial tunnel provided for fastening the second end of an ACL graft, the first end of which is already shown, is shown through which the fastening mechanism is introduced. Fastened into the femoral blind hole or tunnel, wherein the fastening mechanism is introduced into the tibial tunnel through the tunnel opening not on the tibial plateau. In at least some of the method steps, the graft is tensioned (if applicable) by being pulled in a direction T opposite to the direction I of introducing the fastening means into ...

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Abstract

A soft tissue graft (1) suitable e.g. for replacing a tendon or ligament is fastened in a bone opening (3) provided in a human or animal patient by press-fitting an end portion of the graft (1) and a fastener (4 / 5) into the bone opening (3) such that the graft end portion is pressed against a first portion of the bone wall inside the bone opening (3), by then anchoring the fastener (4 / 5) in a second portion of the bone wall by liquefying a material having thermoplastic properties comprised by the fastener (4 / 5) and making it to penetrate into the bone wall, and by tying the end portion of the graft (1) to the fastener (4 / 5) with the aid of at least one suture (2.2) extending from the graft end portion. The step of tying is carried out after the step of anchoring, during the step of anchoring or between the step of anchoring and the step of press-fitting. The tied connection between the fastener (4 / 5) and the graft end portion successfully counteracts potential graft slipping.

Description

technical field [0001] The present invention is in the field of orthopedic surgery and relates to a method of fastening soft tissue into a hole provided in a human or animal bone, wherein the soft tissue graft comprises an end to which a suture is secured or adapted for such fixed. The invention also relates to a fastening mechanism suitable for this method. [0002] The term "soft tissue graft" or just "graft" as used herein is in particular an autograft, an allograft, a xenograft, but it can also be the original soft tissue which will be refixed to its On bones that have been removed due to injury or surgery. Soft tissue grafts especially tendon or ligament grafts or native tendons or ligaments. However, the terms "soft tissue graft" or "graft" may also include prosthetic pieces that replace or supplement soft tissue, i.e., inter alia, will replace or reinforce ruptured or otherwise defective tendons or ligaments and are tightened for this purpose. Artificial tendon or l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/86A61F2/08
CPCA61B17/866A61B17/8645A61F2002/0858A61F2/0811A61F2002/0823A61F2002/0835A61F2002/0817
Inventor A·米勒A·温格J·迈耶
Owner SPORTWELDING