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Novel tracheal fistula orificium stent

A fistula and trachea technology, applied in the field of new tracheal fistula stents, can solve problems such as inconvenient drug treatment at the fistula, threat to the life of the patient, unfavorable closure of the fistula, etc., to prevent downward leakage and bacterial diffusion , to avoid bacterial infection, to enhance the effect of the effect

Pending Publication Date: 2018-11-02
GUANGDONG GENERAL HOSPITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the course of clinical practice, the following problems were found: 1) More secretions tend to accumulate around the stent (especially at the fistula), which is likely to cause bacteria to multiply and lead to infection
2) Due to the existence of the fistula stent, it is impossible or inconvenient to administer medication to the fistula
3) It is easy to be displaced, which is not conducive to the sealing of the fistula, and in severe cases, the falling off may threaten the life of the patient

Method used

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  • Novel tracheal fistula orificium stent
  • Novel tracheal fistula orificium stent
  • Novel tracheal fistula orificium stent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Such as Figure 1~2 As shown, a novel tracheal fistula stent includes a stent main body 100 that can be placed at the tracheal fistula in the human body, and a fistula communication mechanism 200 .

[0036] The fistula communication mechanism includes a notch 210 provided on the outer wall of the stent main body, a first joint 220 that can be used to connect an extracorporeal medical connection tube, and a connecting pipe 230 that is used to communicate the notch 210 and the first joint 220 . Such as figure 1 As shown, the first joint 220 is disposed on the edge of the side wall at the upper end of the bracket body 100 . The first connector 220 adopts a heparin lock structure similar to the medical infusion field.

[0037] The notch 210 may not penetrate the side wall, or may penetrate the side wall. In this embodiment, the notch 210 is arranged at the outer side wall of the bracket body 100, the connecting pipe 230 is arranged in the side wall of the bracket body 10...

Embodiment 2

[0040] This embodiment is the second embodiment of the present invention, and the difference from Embodiment 1 lies in the arrangement of the notch, specifically, as image 3 As shown, the notch 210 runs through the outer wall and the inner wall of the bracket body 100, the connecting pipe 230 is installed on the inner wall of the bracket body 100, one end of the connecting pipe 230 is airtightly connected with the notch 210, and the other end of the connecting pipe 230 is connected with the first Connector 220 is connected. The connecting pipe 230 has an oblate structure, and the part of the connecting pipe 230 in contact with the inner wall of the bracket main body 100 is integrally formed with the inner wall of the bracket main body 100. Through such arrangement, the volume occupied by the connecting pipe can be reduced as much as possible.

[0041] Other components and connection relations are the same as in Embodiment 1.

Embodiment 3

[0043] This embodiment is the third embodiment of the present invention, different from Embodiment 1 or 2, as Figure 5 and 6 As shown, the stent main body 100 in this embodiment is also provided with an airbag 300 for enhancing the stability of the stent main body 100 and a second joint 400 that can be connected with an inflatable tube outside the body. Same as the first joint, the second joint 400 is arranged on the edge of the side wall of the upper end of the bracket body, and the first joint 220 and the second joint 400 can be located on the same side or opposite to each other. The second joint 400 communicates with the inside of the airbag 300 to inflate the airbag 300 . Generally, in the inflated state, the thickness of the airbag is 3~4mm. The airbag 300 is a one-way valve airbag. Specifically, the airbag 300 is provided with an air intake one-way valve to ensure that the airbag 300 does not leak after being inflated.

[0044] The airbag 300 is disposed on the outer...

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Abstract

The invention provides a novel tracheal fistula orificium stent which comprises a stent main body arranged at the tracheal fistula orificium of the human body and an orificium communicating mechanism.The orificium communicating mechanism comprises a gap formed in the side wall of the stent main body, a first joint for connection with an in-vitro medical connecting tube and a connecting pipeline for communicating the gap with the first joint. The first joint is arranged at one end of the stent main body. The novel tracheal fistula orificium stent can achieve conduct secreta suction and medicine adding on the fistula orificium and the vicinity of the fistula orificium, decreases secreta accumulated around the stent, avoids bacterial infection, meanwhile facilitates dosing and treatment of the fistula orificium, and promotes fistula orificium healing and control of fistula orificium vicinity infection. In addition, the novel tracheal fistula orificium stent adopt the design of the stentto achieve connection with the in-vitro medical connecting tube, prevents the medical connecting tube from being retained at the trachea of the human body, greatly reduces the influence on the life ofa patient, increases the comfort of the patient and appearance attraction degree and reduces the infection risk.

Description

technical field [0001] The invention relates to the field of medical instruments, and more specifically, relates to a novel tracheal fistula stent. Background technique [0002] The esophageal-tracheal fistula formed by various esophageal or tracheal diseases causes esophageal secretions to flow into the airway, causing severe lung infection, which is life-threatening in severe cases. Because of the existence of the fistula, the patient cannot eat orally, which seriously reduces the quality of life of the patient. For the treatment of esophageal-tracheal fistula, a relatively effective treatment method in the prior art is to insert a stent to block the fistula opening, which can reduce or even prevent esophageal secretions from flowing into the airway and reduce the occurrence of aspiration pneumonia. Some patients with good occlusion effect can even take food orally to improve their quality of life. However, in the course of clinical practice, the following problems were ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/82
CPCA61F2/82A61F2002/823
Inventor 吴健劳妙婵
Owner GUANGDONG GENERAL HOSPITAL
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