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Biological absorbable suturing assembly

A component and suture technology, applied in medical science, surgery, surgical instruments, etc., can solve the problems of difficult to achieve the strength and toughness of metal materials, affecting tissue healing, surrounding tissue lesions, etc. The effect of reducing tissue damage

Inactive Publication Date: 2017-02-22
李胜文 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Staples made of polymer materials are degradable in the body, and the final products of degradation are usually carbon dioxide and water, which are harmless to human tissues and have good biocompatibility. However, it is difficult for such materials to achieve the strength and toughness of metal materials. To ensure sufficient strength and toughness for clinical application, the currently designed staples have a relatively thick foot diameter, which remains in the tissue and affects tissue healing
Magnesium and magnesium alloy staples are metal staples that can be degraded in the human body. However, in order to control the degradation rate of such staples in vivo, it is necessary to add aluminum, rare earth elements and other substances. Since aluminum is recognized as neurotoxic, rare earth elements in Accumulation in the body can produce toxic reactions and cause surrounding tissue lesions, so the biological toxicity, carcinogenicity and genotoxicity of this type of staples need to be further studied

Method used

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  • Biological absorbable suturing assembly
  • Biological absorbable suturing assembly
  • Biological absorbable suturing assembly

Examples

Experimental program
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Effect test

Embodiment Construction

[0019] exist figure 1 Among them, absorbable sutures can be prepared from materials widely used in clinical practice, and the knots can be made by weaving during the preparation of sutures. The knot 1 has a diameter of about 0.5 mm to 1.5 mm, and the absorbable suture 2 forms a "staple structure" through the knot, and the length of its "nail feet" is about 3.5 mm to 5.5 mm. The length is about 6.0mm to 10.0mm.

[0020] exist figure 2 Among them, the fixing part is made of PLGA material, and the shape of the mold used is the same as that of figure 2 The shape of the fixing part shown corresponds to that. In the specific operation, the injection molding method can be used, that is, after the PLGA is heated and melted, the molten raw material is added to the mold by injection with a certain pressure, and then the PLGA is solidified and demoulded to obtain. The fissure in the groove of the fixing part can be cut by a cutter.

[0021] still see figure 2 , the fixing part is...

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Abstract

The invention designs an absorbable suturing assembly capable of suturing a human tissue and organ. The suturing assembly is formed by an absorbable suturing line with line joints and a fixing member, wherein the contour of the absorbable line is similar to a continuously arrayed staples; line joints are arranged on a nail tail end and the nail body corners; the degradable fixing member is in a round disc shape; a groove recessed toward the center is arranged on the fixing member; and the bottom of the groove is in a crack structure. During the use, with a help of a guiding device, after the absorbable suturing line with the line joints passes through the human tissue and the fixing member, the line joints are clamped into the fixing member groove, so the human tissue can be sewed. The suturing assembly can be simply operated and requires less time during the operation and has reliable connection; the biological absorbable suturing assembly has great biological compatibility, causes little damage to tissues, and is suitable for tissue suture of various demands.

Description

technical field [0001] The invention relates to a bioabsorbable suturing component used for suturing human tissues during surgical operations. Background technique [0002] During surgical operations, sutures or staples are often used for anastomosis of tissues and organs such as the stomach, intestinal tract, urinary system, muscles, blood vessels, esophagus, and subcutaneous tissue. Traditional manual suturing with suture thread is complicated, especially in laparoscopic surgery, the knotting technique under the microscope is difficult, the operation takes a long time, and the patient has more chances of bleeding and injury during the operation. If the knot is not firm after suture, the thread knot After loosening, it is easy to cause massive bleeding or even life-threatening. [0003] Staples have certain advantages in anastomosis of tissues and organs. This method of anastomosis has the advantages of simple operation, smooth incision, and short time consumption. At pre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/06A61B17/04
CPCA61B17/06166A61B17/0401A61B2017/00004A61B2017/06176
Inventor 李胜文宋志强沈海山
Owner 李胜文