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Device for fixation of a flexible element, particularly a natural or synthetical ligament or tendon, to a bone

A technology of flexible components and equipment, applied in ligaments, muscles, applications, etc., can solve problems such as ignoring mechanical stability

Active Publication Date: 2015-07-15
UNIV ZURICH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] But almost all the preclinical studies listed above have mainly focused on the cell biology aspects (cell source or osteoinductive / conductive mediator) that can be applied at the tendon / scaffold to bone interface, and neglected the main mechanical stability. meaning

Method used

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  • Device for fixation of a flexible element, particularly a natural or synthetical ligament or tendon, to a bone
  • Device for fixation of a flexible element, particularly a natural or synthetical ligament or tendon, to a bone
  • Device for fixation of a flexible element, particularly a natural or synthetical ligament or tendon, to a bone

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Embodiment Construction

[0101] figure 1 A device according to the invention is shown for the fixation of a flexible element 10 to, inter alia, a human bone 20, such as a distal femur, in case the flexible element 10 is used for ACL reconstruction. The device 1 according to the invention comprises an insert 100 for holding the flexible element 10 , in particular forming a ring around the insert 100 and an anchoring member 200 into which the insert 100 is inserted. When inserted into the bore hole 2 of said bone 20, the anchoring member 200 contacts the wall of the bore hole 2 with its toothed outer portion 200a. While the insert 100 is thus inserted into the anchoring member 200, the contact surfaces 112a, 113a, 122a, 123a of the insert 100 (see also Figure 6 and Figure 7 ) also contacts the wall of the borehole 2.

[0102] Preferably, the anchoring member 200 is made of or comprises polyetheretherketone (PEEK), while the insert 100 preferably comprises tricalcium phosphate (TCP). The anchoring ...

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Abstract

The invention relates to a device (1) for fixing a flexible element (10), particularly in the form of an artificial or natural ligament or a tendon, to a bone (20), comprising: an insert (100) being designed to hold said flexible element (10), and an anchor (200), wherein the insert (100) is designed to be inserted into said anchor (200), and wherein the anchor (200) is designed to be inserted into a bore hole (2) of said bone (20) together with said insert (100) inserted into the anchor (200) to fix the flexible element (10) to the bone(20).

Description

technical field [0001] The invention relates to a device for fixing a flexible element, in particular in the form of an artificial or natural ligament or an artificial or natural tendon, to a bone, preferably a human bone. Background technique [0002] Due to the anatomical position, such flexible elements like the anterior cruciate ligament (ACL), for example, are subjected to enormous forces during sports and other daily activities. ACL rupture is considered the most frequent and severe ligament injury [1]. It is estimated that in the United States, approximately 250,000 patients (or one in 3000 of the population) are diagnosed with ACL splits each year, of whom approximately 75,000 undergo surgical reconstruction each year [2-5]. In Switzerland, around 5000 ACL reconstructions are performed every year. Although a number of surgical options for ACL reconstruction, including autograft, allograft, xenograft, or synthetic graft, have been used in practice to restore knee st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/00A61B17/04
CPCA61F2002/0835A61F2240/008A61L2430/10A61F2002/0852A61F2002/087A61L27/12A61F2240/001A61B2017/0456A61B2017/045A61B2017/0403A61F2/0805A61F2/08A61F2002/0888A61B2017/00933A61B2017/0445A61F2/0811A61B17/0401
Inventor 杰斯·G·斯内德克李翔汉斯·鲁道夫·佐默
Owner UNIV ZURICH
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