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Artificial human body intracavity duct with buffer edge

A substitute and human body technology, which is applied in the field of human cavity substitutes, can solve the problems of anastomotic stenosis and tube detachment, and achieve the effects of firm connection, preventing anastomotic leakage, tube detachment, and stenosis

Inactive Publication Date: 2007-03-14
周星
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a human body lumen tube substitute with a buffer edge, especially a substitute for human esophagus reconstruction or tracheal reconstruction, which can effectively solve the problem of human esophagus or trachea reconstruction after resection of the esophagus or trachea, and can Effectively solve the problems of anastomotic leakage, tube detachment, especially anastomotic stenosis

Method used

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  • Artificial human body intracavity duct with buffer edge
  • Artificial human body intracavity duct with buffer edge
  • Artificial human body intracavity duct with buffer edge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043]Embodiment 1: Crimping-type human cavity tube substitute with buffer side with petal-type anti-reflux device

[0044] Use titanium-nickel shape memory alloy wire with a recovery temperature of 15°C and a diameter of 0.25 mm to weave the support tube 1 in the mold, and then perform heat treatment in the mold to make it a cylindrical tubular shape with a network structure above the recovery temperature, and polish it 1. After cleaning, the support tube 1 of the present invention is obtained.

[0045] In the coating equipment, the support tube 1 is installed in a special mold, and the support tube 1 is coated according to the general process of medical silicone, and the anti-reflux device blank is manufactured at the same time. A semi-finished product is formed, that is, a support tube 1 with a flexible material membrane 3 with an anti-reflux device blank, refer to FIG. 18 .

[0046] Flip the flexible material film 3 beyond the end of the support tube 1 to the outside of t...

Embodiment 2

[0051] Embodiment 2: Cylindrical tubular body cavity tube substitute with buffer side

[0052] The manufacturing process of the support tube 1 is the same as that of Example 1, but the molds are different when the film is covered in the film coating equipment. After the film is covered, a buffer edge 4 is formed at the end of the support tube 1, and the length of the buffer edge 4 is about 15mm. The thickness is about three times the thickness of the flexible material film 3 on the support tube 1 . After coating, the connector 2 is sutured and fixed on the support tube 1, cleaned, packaged, and sterilized, and the cylindrical tubular body cavity substitute with a buffer edge of the present invention is obtained, as shown in FIG. 1 .

Embodiment 3

[0053] Embodiment 3: Cuff-type one-way valve-type anti-reflux device curling-type human body cavity tube substitute with buffer side

[0054] The manufacturing process of this embodiment is basically the same as that of Embodiment 1 and Embodiment 2. Only by changing the shape of the mold and following the same process route, the cylindrical tube-shaped human body cavity tube substitute with a buffer edge of the present invention can be produced. Refer to the figure 15, Figure 16, Figure 17.

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Abstract

The invention relates to a human orificial pipe substitute with baffle edge. Wherein, it is formed by support tube, connector, flexible film and baffle edge; the flexible film is adhered on the support tube; the baffle edge is connected to the end of support tube; the connector is fixed on the support tube. The inventive support tube can effectively avoid around organism to contract to be neck; the connector can effectively reduce the creep of normal orificial pipe to avoid affecting the anastomotic stoma, to obtain firm connection; and the baffle edge can effectively disperse the stress at the anastomotic stoma, to avoid narrow anastomotic stoma. The invention can be made into artificial gullet or trachea.

Description

technical field [0001] The invention relates to a substitute for a human cavity, in particular to a substitute for an esophagus or a trachea, that is, an artificial esophagus or an artificial trachea. Background technique [0002] In the prior art, when the esophagus needs to be resected due to tumors, it is usually solved by lifting the stomach or intestinal tract and anastomosis with the proximal end of the esophagus to reconstruct the digestive tract. Complications; when tracheal lesions need to resect the trachea of ​​more than 3cm, an ideal substitute for tracheal reconstruction is urgently needed clinically. [0003] The inventor discloses a substitute for the reconstruction of the human lumen in the Chinese patent ZL01107515.5 (patent name: artificial lumen substitute), especially a substitute for reconstruction of the esophagus or trachea. Its main structure is: It is composed of a tubular body made of memory alloy smart elements and connecting pieces, the connectin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/04A61L27/06A61L27/04A61L27/14
Inventor 周星傅剑华李艳芳罗小建朱明郭爱军罗丽飞
Owner 周星
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