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Degradable metal anastomosis nail and preparation method thereof

A technology of staples and staplers, which is applied in the field of staples and their preparation, can solve problems such as poor mechanical properties, and achieve the effects of avoiding physiological and mental burdens, improving corrosion resistance, and good biocompatibility

Pending Publication Date: 2020-07-10
BEIJING UNION UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although degradable polymer materials can be used as degradable staples for repair, their mechanical properties are relatively poor, and acidic degradation products are likely to cause acute or chronic inflammation, etc.

Method used

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  • Degradable metal anastomosis nail and preparation method thereof
  • Degradable metal anastomosis nail and preparation method thereof
  • Degradable metal anastomosis nail and preparation method thereof

Examples

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Effect test

Embodiment 1

[0031] The stapler uses degradable staples, which are composed of a staple body processed from medical degradable zinc alloy wire, and a degradable polymer surface layer attached to the surface of the zinc alloy wire for hole sealing. The entity is characterized by a staple-like shape. The basic size of the stapling length of the stapler using degradable staples is 63-103mm, and the allowable error is ±2mm. The staple height of the stapler using degradable staples is 3.8-4.5mm, and the allowable error is ± 0.2mm. Such as figure 2 shown.

[0032] The stapler is made of degradable staples, and the body is made of degradable zinc alloy wire, and the surface layer is made of degradable polymer surface layer. It can also be degraded in vivo and has excellent biocompatibility. It is suitable for anastomosis and suture of gastrointestinal tract and esophagus in human digestive tract operation.

[0033] Concrete preparation comprises the following steps:

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Abstract

The invention provides a degradable metal anastomosis nail and a preparation method thereof, and belongs to the technical field of medical instruments. The degradable metal anastomosis nail is composed of a suture nail body and a degradable organic polymer surface layer, wherein the suture nail body is formed by processing a medical degradable zinc alloy wire, and the degradable organic polymer surface layer is attached to the surface of the zinc alloy suture nail body. The suture nail body is in a shape similar to a staple. The degradable metal anastomosis nail can be naturally degraded in aliving body, and can be degraded in the body within a certain time after the medical effect is achieved.

Description

technical field [0001] The invention relates to the technical field of medical device design and production, and relates to an anastomotic staple with excellent biocompatibility, suitable biomechanical properties and biodegradability for clinical use of postoperative repair and reconstruction and a preparation method thereof. Background technique [0002] The invention and application of sutureless surgery technology is a great progress and development in the field of surgery. It is not only easy and fast to operate, shortens the operation time, but also easily completes suturing and anastomosis with narrow surgical fields, deep parts, and difficult manual operations, and expands the scope of surgery. , Reduce surgical complications and shorten hospital stay. Therefore, as one of the most successful surgical techniques at present, the use of sutureless anastomosis has become more and more extensive. The stapler is a tool used by doctors to replace the traditional manual sut...

Claims

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Application Information

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IPC IPC(8): A61L31/02A61L31/10A61L31/14A61B17/064C21D9/52C22C18/00C22F1/16C23C26/00C23G1/20
CPCA61L31/022A61L31/10A61L31/148C22F1/165C21D9/525C22C18/00C23C26/00C23G1/20A61B17/064A61L2400/18A61L2420/06C08L5/08C08L67/04
Inventor 杨静馨成秉禄马永新徐平国王训伟
Owner BEIJING UNION UNIVERSITY
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