Magnesium-based metal suture anchor and implanting device thereof

A technology of magnesium-based metals and implant devices, which is applied in the field of medical devices and can solve the problems of anchor failure, fracture, and no biological function

Active Publication Date: 2016-11-23
SHANGHAI NINTH PEOPLES HOSPITAL AFFILIATED TO SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this polylactic acid strip anchor has certain limitations.
First of all, the mechanical strength of polylactic acid anchor with wire is not enough, so it can only be used in patients with better bone quality
Secondly, if the polylactic acid anchor is not used proper

Method used

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  • Magnesium-based metal suture anchor and implanting device thereof
  • Magnesium-based metal suture anchor and implanting device thereof
  • Magnesium-based metal suture anchor and implanting device thereof

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Embodiment Construction

[0024] For the degradable magnesium-based metal strip anchor and its implantation device of the present invention, the magnesium-based metal needs to be manufactured by using high-purity raw materials and high-cleanliness smelting technology. After heat treatment and deformation processing, it is made into the required dovetail shape, such as figure 1 shown. The dovetail angle is 30-70°. The length of the widest part of the dovetail is 1-30mm, and there are 1-3 holes in the middle of the distal end for threading sutures. Implanted devices such as figure 2 Shown is a hollow sleeve with a hollow for insertion rods and sutures. There is a hollow handle at the proximal end, and the shape of the distal end is trapezoidal. image 3 shown.

[0025] The magnesium-based metal can be pure magnesium or a magnesium alloy. Pure magnesium is by weight percentage, and the purity is more than 95%. Magnesium alloy contains one or more of the following trace elements in terms of weight ...

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Abstract

The invention discloses a magnesium-based metal suture anchor and an implanting device thereof, and relates to the field of medical devices. The magnesium-based metal suture anchor comprises an anchor body, an implanting rod and a draft line, wherein the anchor body is in a dovetail shape, an anchor hole is formed in the anchor body, the implanting rod is tubular, the draft line is connected with the anchor hole after passing through the implanting rod, and the implanting rod is fixedly connected with the anchor body. The invention further provides an implanting device, wherein the implanting device is a hollow sleeve, a near end is provided with a holding part, a remote end is provided with a trapezoid inclined surface, and the suture anchor and the implanting rod are inserted into the hollow part; and when drawing and pulling the draft line, the trapezoid inclined surface is used for expanding the dovetail part of the dovetail-shaped anchor body. The magnesium-based metal suture anchor provided by the invention has strong pullout resistance, can be degraded and absorbed in the organism body at a controllable degradation speed, and has excellent biocompatibility and excellent osseointegration ability.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a magnesium-based metal wire anchor and an implantation device thereof. Background technique [0002] In recent years, people have paid more and more attention to sports injuries. Avulsion or avulsion fracture near the attachment point of tendon is one of the most common injuries in sports injuries. Common rotator cuff injuries, knee cruciate ligament injuries, hammer fingers and so on. This injury severely affects the function of the affected joints, with irreversible consequences. Anchor with wire is one of the main means of treating tendon near attachment point injury. This is a small medical implant that reconnects damaged soft tissue and bone. The mechanism is to pass a thread through the soft tissue with a needle and tie a knot to fix the soft tissue to the anchor, which is the surface of the bone. [0003] As a medical implant, degradable materials have become a hot spo...

Claims

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Application Information

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IPC IPC(8): A61B17/064A61B17/04A61L31/02A61L31/14
CPCA61B17/0401A61B17/0642A61B2017/0412A61L31/022A61L31/14A61L31/148
Inventor 毛震扬戴尅戎曲新华
Owner SHANGHAI NINTH PEOPLES HOSPITAL AFFILIATED TO SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE
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