Adjustable tracheoesophageal fistula blocking device

A occlusion device and technology for esophageal fistula, which are applied in medical science, surgery, coating, etc., can solve the problems of long fistula tract and can not meet the needs of application, etc., achieve the reduction of esophageal stenosis, good occlusion effect, and reduce transverse cutting effect Effect

Active Publication Date: 2013-09-11
GUANGDONG CARDIOVASCULAR INSITITUTE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At the same time, the existing occlusion device is used for atrial septal defect, and the length of its waist can be relatively fixed. However, the trachea and esophagus are relatively long organs, and there is a possibility of forming a longer fistula tract depending on the location of the fistula opening. The fixed blocking device obviously cannot meet the needs of the application

Method used

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  • Adjustable tracheoesophageal fistula blocking device
  • Adjustable tracheoesophageal fistula blocking device
  • Adjustable tracheoesophageal fistula blocking device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] An adjustable tracheoesophageal fistula occlusion device, such as figure 1 As shown, it includes two disc-shaped bodies on the left and right and a flow blocking film placed in the disc-shaped main body. The main body is connected by a stretchable waist. The stretchable waist is composed of a connecting wire 41 distributed in a helical shape. The surface of the connection wire 41 is covered with a flow blocking film. The disk-shaped bodies are all disc-shaped, and the edges of the left disk-shaped body 1 and the right disk-shaped body 2 are slightly concave toward the waist. The center of the inner surface of the left disk-shaped main body 1 converges inwardly at the first node, the outer surface of the right disk-shaped main body 2 converges outward at the second node, and the second node is connected with the connector 3, The connector 3 is used to connect the occluding device with a conveyor. The flow blocking film is in close contact with the inner wall of the ...

Embodiment 2

[0052] An adjustable tracheoesophageal fistula occlusion device, such as figure 2 As shown, it includes two disc-shaped bodies on the left and right and a flow blocking film placed in the disc-shaped main body. The main body is connected by a stretchable waist. The stretchable waist is composed of a connecting line 41 distributed in a folded shape. The surface of the connection wire 41 is covered with a flow blocking film. The disk-shaped bodies are all disc-shaped, and the edges of the left disk-shaped body 1 and the right disk-shaped body 2 are slightly concave toward the waist. The center of the inner surface of the left disk-shaped main body 1 converges inwardly at the first node, the outer surface of the right disk-shaped main body 2 converges outward at the second node, and the second node is connected with the connector 3, The connector 3 is used to connect the occluding device with a conveyor. The flow blocking film is in close contact with the inner wall of the d...

Embodiment 3

[0055] An adjustable tracheoesophageal fistula occlusion device, such as image 3 As shown, it includes two disc-shaped main bodies on the left and right and a flow blocking film placed in the disc-shaped main body. The disc-shaped main body is a mesh structure woven from materials with shape memory ability; A columnar structure 42 is connected, the right disc-shaped main body 2 is connected with the second columnar structure 43 , and the first columnar structure 42 is connected with the second columnar structure 43 through a stretchable connecting line 41 . The surface of the connection wire 41 is covered with a flow blocking film. The center of the outer edge surface and the inner edge surface of the left disc-shaped main body 1 converge inwardly and gather at the first node 6 ; the center of the outer edge surface of the right disc-shaped main body 2 converges inwardly at the second node 5 . The first node and the second node are screw structures. The second node 5 is con...

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Abstract

The invention relates to the field of medical devices, and particularly discloses an adjustable tracheoesophageal fistula blocking device. The adjustable tracheoesophageal fistula blocking device comprises a left disk main body, a right disk main body and flow blocking membranes placed in the disk main bodies, wherein the disk main bodies are in net structures formed by weaving materials with shape memory capacity, and the left disk main body is connected with the right disk main body by a stretchable waist. The waist of the adjustable tracheoesophageal fistula blocking device has the length-adjustable design, and can adapt to blocking of multiple tracheoesophageal fistulas in different lengths; a left disk of the tracheoesophageal fistula blocking device has the special design, and is adaptive to cross shrinkage of a physiological activity of an esophagus, so that a cross cutting effect is reduced, and esophageal stenosis can be reduced; and the adjustable tracheoesophageal fistula blocking device is good in blocking effect, and can prevent food and an esophagus secretion from entering a trachea.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to an adjustable tracheoesophageal fistula occlusion device. Background technique [0002] Tracheoesophageal fistula refers to the formation of a communication channel between the adjacent but independent trachea and esophagus due to trauma, tumor, compression, etc., so that food and secretions on the side of the esophagus can enter the trachea through the fistula, and a series of complications occur. pathological effect. Tracheoesophageal fistula is a serious disease. If it is not discovered in time and treated improperly, septic shock may occur, and even life-threatening, and its incidence rate is not low. According to the autopsy report, the incidence of tracheoesophageal fistula was found to be 0.9% to 13%, and the difference may be partly related to whether the tracheoesophageal fistula was actively searched during autopsy. The median survival time for tracheoesophageal fistula...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/12A61B17/03A61B17/00A61L31/14A61L31/08
CPCA61B2017/00641
Inventor 李静曾国洪蔡毅锋劳妙婵
Owner GUANGDONG CARDIOVASCULAR INSITITUTE
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