Central type tendon anastomat

A stapler and tendon technology, which is applied in the field of surgical tendon anastomosis materials, can solve problems such as no major progress, and achieve the effects of reducing secondary operations, preventing tendon adhesions, and avoiding adhesions

Inactive Publication Date: 2011-03-30
XIEHE HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI & TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

No major progress has been made in these research directions, and the commonly us...

Method used

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  • Central type tendon anastomat
  • Central type tendon anastomat
  • Central type tendon anastomat

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] figure 1 The shown central tendon stapler of the present invention consists of a body 3, two sutures 2 and two suture needles 1. The body 3 is a strip-shaped structure made of biodegradable biomaterials, the middle section of which is an ellipse Cylindrical shape, both ends are elliptical cone shape, one end of the two sutures 2 is connected with the two ends of the body 3 respectively, the other end of the two sutures 2 is respectively connected with the tails of two suture needles 1, the suture needle 1 is Straight needle. The body part 3 is made of biodegradable biomaterial lactide-glycolide copolyester (polyglactin), the suture thread 2 is made of biodegradable biomaterial lactide-glycolide copolyester (polyglactin), and the body part The outer surface of 3 is rough surface, in order to increase frictional force, this rough surface is made up of the small dot-like protrusion that is distributed on the outer surface of body part 3, and the little dot-like protrusion...

Embodiment 2

[0041] Prepare central tendon stapler of the present invention

[0042] Taking the polylactide-glycolide copolyester material as an example, the polylactide-glycolide copolyester powder purchased from the market is melted into a liquid state at a high temperature of 230°C, and the liquid polylactide-glycolide copolyester is poured into the concave mold adapted to the profile of the central type tendon stapler body (3) of the present invention, pull out the suture (2) at the two ends of the concave mold with a screw spinning machine, and draw the suture (2) far away from the suture (2). end to the upper suture needle (1), see figure 1 , figure 2 .

Embodiment 3

[0044] Prepare central tendon stapler of the present invention

[0045] The polylactide glycolide copolyester powder purchased from the market is melted into a liquid state at a high temperature of 230 ° C, and poured into a concave mold adapted to the shape of the central tendon stapler body (3) of the present invention, in the concave mold A suture (2) with suture needles (1) at both ends is preset, the middle section of the suture (2) is placed at the longitudinal central axis of the die, and the suture needles (1) at both ends of the suture (2) and the A section of suture thread connected by the suture needle (1) is left on the outside of both sides of the die, and the central tendon stapler of the present invention is obtained after the cooling of the polylactide-glycolide copolyester, see image 3 , Figure 4 .

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Abstract

The invention provides a central type tendon anastomat which comprises a body part (3), two suture lines (2) and two suture needles (1), wherein the body part (3) is in a long strip structure made of a degradable biomaterial, the middle section of the body part (3) is an elliptic cylinder, and both ends of the body part (3) are elliptic cones; one ends of the two suture lines (2) are respectively connected with both ends of the body part (3), and the other ends of the two suture lines (2) are respectively connected with the tail parts of the two suture needles (1). The central type tendon anastomat can always provide sufficient stretching resistance during the tendon healing period so that rehabilitation activities can be started immediately without braking, after a tendon repair operation, synechia between the tendon and tendon surrounding tissues is avoided, the quality and the strength of tendon anastomosis are greatly improved, and a second operation is omitted.

Description

technical field [0001] The invention belongs to medical materials, in particular to surgical tendon anastomosis materials. Background technique [0002] Tendon rupture is one of the common clinical diseases. There are 200,000 muscle injuries in the United States every year [see: Pennisi E. Tending tendons. Science 2002, 295 (5557): 1011]. Considering China's population base and labor-intensive industries The current situation is that there are no less than 1 million people in China every year. There are many methods of tendon repair, such as Bunnell method, Kessler method, Tsuge method, Kleinert method, etc. [Refer to literature: Gu Yudong, Wang Shuhuan, Shide. Hand Surgery 402-404. Shanghai Medical University Press, 1999.]. According to our clinical experience, with the above-mentioned anastomosis technique, even if an anti-adhesion film is added during the operation and good rehabilitation training is received after the operation, 10 to 20% of the patients still have to u...

Claims

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Application Information

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IPC IPC(8): A61B17/06A61L17/00
Inventor 李进
Owner XIEHE HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI & TECH UNIV
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