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Degradable composite material for anastomosis of canals and tissues in human body

A composite material and inner pipe technology, which is applied in the field of degradable composite materials, can solve the problems of easily damaged tissue removal and difficulty, and achieve the effect of good biocompatibility

Inactive Publication Date: 2010-11-17
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the deficiencies in the above-mentioned prior art, the object of the present invention is to provide a degradable composite material for the anastomosis of internal pipelines and tissues, which can be processed into various shapes and applied to the anastomosis of internal pipelines and tissues in the human body. The instrument, because of its magnetic properties, can be applied to the bonding and healing of pipelines and tissues in vivo, and there are no shortcomings such as indwelling foreign objects in the body, hard magnets that easily damage tissues, and difficulty in taking them out; The advantages of good capacity, slight damage and can be gradually decomposed and excreted from the body

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Degradable composite material for human body pipeline and tissue anastomosis, the mixture of biodegradable polyurethane material particles and nano-magnetic particles is made into a biodegradable composite material for human body pipeline and tissue anastomosis equipment through molding technology under a pressure of 10MPa. The mass proportion of the biodegradable polyurethane material particles in the mixture is 45%, the nano magnetic particles are nano magnetic NdFeB particles, and the biodegradable polyurethane material particles and the nano magnetic particles are 70 nanometers. The surface of the nanometer magnetic particle is coated with a biocompatibility-enhancing silica biological coating, and the thickness of the coating is 5 nanometers.

[0012] Using this embodiment of the present invention, the mixture of biodegradable polyurethane material particles and nano-magnetic particles is made into a degradable composite material for the anastomosis of pipelines and...

Embodiment 2

[0014] Degradable composite materials for human body pipeline and tissue anastomosis, the mixture of biodegradable polyurethane material particles and nano-magnetic particles is made into a biodegradable composite material for human body pipeline and tissue anastomosis instruments through molding technology under a pressure of 30MPa. The mass ratio of the biodegradable polyurethane material particles to the mixture is 70%, the nano magnetic particles are nano samarium cobalt magnetic particles, and the biodegradable polyurethane material particles and the nano magnetic particles are 50 nanometers. The surface of the nanometer magnetic particle is coated with a biocompatibility-enhancing silica biological coating, and the thickness of the coating is 10 nanometers.

[0015] Using this embodiment of the present invention, the mixture of biodegradable polyurethane material particles and nano-magnetic particles is made into a degradable composite material for the anastomosis of pipe...

Embodiment 3

[0017] Degradable composite material for human body pipeline and tissue anastomosis, the mixture of biodegradable polyurethane material particles and nano-magnetic particles is made into a biodegradable composite material for human body pipeline and tissue anastomosis equipment through molding technology under a pressure of 35MPa. The mass ratio of the biodegradable polyurethane material particles to the mixture is 80%, the nano magnetic particles are nano samarium cobalt magnetic particles, and the biodegradable polyurethane material particles and the nano magnetic particles are 95 nanometers. The surface of the nanometer magnetic particle is coated with a biocompatibility-enhancing silicon dioxide biological coating, and the thickness of the coating is 20 nanometers.

[0018] Using this embodiment of the present invention, the mixture of biodegradable polyurethane material particles and nano-magnetic particles is made into a degradable composite material for the anastomosis o...

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Abstract

The invention discloses a degradable composite material for anastomosis of canals and tissues in a human body. The degradable composite material for the anastomosis of the canals and the tissues in the human body is prepared from a mixture consisting of biodegradable polyurethane material particles and nano magnetic particles by using a rapid prototyping technique. The degradable composite material is processed to manufacture apparatus, applied to the anastomosis of the canals and the tissues in the human body, with various shapes; and because the degradable composite material is magnetic and can be applied to the bonding concrescence of the canals and the tissues in an organism, the degradable composite material does not have the disadvantages that foreign bodies are left in a body and a magnet is hard, can injure the tissues easily and is difficult to taken out.

Description

technical field [0001] The invention belongs to degradable composite materials, in particular to a degradable composite material used for anastomosis of pipelines and tissues in the human body. Background technique [0002] The traditional anastomosis of pipelines and tissues in the human body is done manually with sutures or suture materials. Due to high technical requirements, and the existence of anastomotic sutures can lead to mucosal erosion and tissue inflammation and edema, promote scar hyperplasia, and anastomotic stenosis is easy to form. [0003] In recent years, some people have used an alloy material made of rare earth metal elements, and the magnetic ring made of this material has been applied to the anastomosis of human body pipelines and tissues. The results show that the suction of magnetic materials can safely complete the human body pipelines and tissues. Anastomosis without the need for conventional suture techniques, and reduce the occurrence of anastomot...

Claims

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Application Information

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IPC IPC(8): A61L17/04A61L17/14
Inventor 李建辉吕毅
Owner XI AN JIAOTONG UNIV
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