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Artificial trachea

A technology of artificial trachea and trachea, which is applied in the field of trachea, can solve the problems of bacterial contamination and poor stability of artificial trachea, and achieve the effects of preventing bacterial invasion, reducing anastomotic stenosis and fistula, and reducing excessive hyperplasia

Inactive Publication Date: 2007-01-31
THE SECOND XIANGYA HOSPITAL OF CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the prosthesis is not tightly combined with the body, bacterial contamination will cause tissue reactions characterized by chronic ulcers, which will make the stability of the artificial trachea worse

Method used

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  • Artificial trachea
  • Artificial trachea

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Embodiment Construction

[0018] see figure 1 , with the polytetrafluoroethylene porous tracheal prosthesis 3 as the trachea main body, the polytetrafluoroethylene porous tracheal prosthesis 3 is made of polytetrafluoroethylene (PTFE), and the inner vertical and outer horizontal forms interlaced and micropores, and the outer layer is bonded more Root circular support ring 4, polytetrafluoroethylene porous tracheal prosthesis 3 length is 4cm, diameter is 1.9cm, in the polytetrafluoroethylene porous tracheal prosthesis 3 inner wall surface layer is sprayed with collagen, collagen is conducive to the epithelialization of tracheal mucosa, polytetrafluoroethylene The front port of the tetrafluoroethylene porous tracheal prosthesis 3 is mechanically fixed and hermetically connected with the first titanium ring 1, and the first artificial suture ring 2 made of expanded polytetrafluoroethylene material is fixed on the polytetrafluoroethylene porous tracheal prosthesis. The outer periphery of the connection bet...

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Abstract

An artificial trachea is composed of a porous main body made of teflon, the Ti rings made of medical high-purity Ti or Ti-alloy and connected to each port of said main body in sealing mode, the artificia suture rings with rich villi and fixed to the periphery of each Ti ring connected position, and the collagen or thermodecomposing carbon layer sprayed on the inner surface of said main body.

Description

technical field [0001] The invention relates to a trachea for human body made by artificial method. Background technique [0002] The human trachea often causes airway obstruction due to factors such as tumors or inflammatory lesions, which endangers the lives of patients in severe cases. Surgical resection of the diseased trachea and reconstruction of the airway is the most effective clinical treatment. However, the resectable length of the trachea is limited. Generally speaking, resection of the trachea with a length greater than 4 cm has high complications and high mortality. Resection beyond 1 / 2 of the native trachea requires airway reconstruction with a tracheal substitute. Airway reconstruction can be accomplished by allogeneic tracheal transplantation, autologous tissue reconstruction, artificial trachea, and tissue engineered trachea implantation. [0003] Because the blood vessels supplying the trachea are slender and distributed segmentally, it is impossible to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/04A61L27/14A61L27/06A61L27/28A61L27/00
Inventor 喻风雷
Owner THE SECOND XIANGYA HOSPITAL OF CENT SOUTH UNIV