CN203619727U - Tubular anti-skid membrane airway stent - Google Patents
Tubular anti-skid membrane airway stent Download PDFInfo
- Publication number
- CN203619727U CN203619727U CN201320473481.9U CN201320473481U CN203619727U CN 203619727 U CN203619727 U CN 203619727U CN 201320473481 U CN201320473481 U CN 201320473481U CN 203619727 U CN203619727 U CN 203619727U
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- stent
- airway
- membrane
- skid
- tubular
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Abstract
A tubular anti-skid membrane airway stent is characterized by comprising a tubular meshed main portion and serrated horn portions connected to two ends of the tubular meshed main portion. A membrane covers the tubular meshed portion. The tubular anti-skid membrane airway stent has the advantages that since the main portion of the stent is in an all-membrane covered structure, various tracheal fistula can be blocked effectively, and stenosis caused by tissue hyperplasia can be prevented effectively; two ends of the stent body are fixed, and accordingly skid and displacement of the stent can be avoided effectively; the stent can be designed in different sizes and adaptable to different airways; during operation, the stent is convenient to convey and reliable, and adaptable to general airway conveyors; the stent is efficiently economical as compared with an import stent, and most patients can afford. The stent can release airway stenosis and blocks tracheal aiming to airway stenosis, tracheoesophageal fistula and thoracic stomach airway fistula caused by various benign and malignant diseases, and the incidence of stent displacement is reduced.
Description
Technical field
This utility model relates to medical stent, is a kind of anti-slip overlay film inner airway stent of tubulose that is applicable to remove tracheal stenosis, shutoff tracheal fistula specifically.
Background technology
The tracheal stenosis that various benign lesions are as narrow in trauma scaring, the infiltration of tracheomalacia or malignant tissue, compressing cause, and the disease such as esophago-tracheal fistula, thoracic cavity stomach airway fistula of various advanced tumors formation, serious threat human body health, significant limitation patient's ventilatory function, even threat to life.
Once tracheal stenosis forms, medicine or operative treatment often produce little effect.There is the defects such as relapse rate height as balloon expandable in conventional interventional therapy.That tracheo esophageal fistula is usually brought is more serious, be difficult to the pulmonary complication of curing as aspiration pneumonitis etc., and severe patient makes the patient can not oral feeding, has seriously reduced patient's quality of life, and most of patients is often because chronic consumption, body exhaustion cause death.Because trachea membranous part is elastic fiber, be difficult to healing once destroy, this is to be also difficult to one of reason for the treatment of after esophago-tracheal fistula occurs.The quality of life of therefore how to treat esophago-tracheal fistula raising patient, be called clinical a great problem.
Support is inserted as a kind of Perfected process, and it can not only effectively alleviate rapidly dyspnea, shutoff fistula mouth, improve the quality of living, and for further treating the time of having won.But in clinical practice, existing various supports exist variety of problems, as simple bare bracket, its tinsel easily stimulates granulation propagation, and kinds of tumor, granulation tissue are followed support mesh and grown into and cause support intracavity restenosis clinically.And although existing common tubulose precoated metal support has solved the problem of biocompatibility and prevention of restenosis, but inserting after airway stent, often there is the symptom of coughing in patient, and support is more easily shifted, displacement downwards easily causes the obstruction of a side or bilateral main bronchus, and severe patient can threaten patient's life.
The defect of above-mentioned common trachea bracket has limited the application of endotracheal stent in tracheal stenosis and fistula treatment greatly.
Summary of the invention
The purpose of this utility model is just for the existing problem of above-mentioned prior art, after overcoming common airway stent placement, there is displacement problem, custom-designed a kind of the have applicable treatment tracheal stenosis of good adherent effect and the anti-slip overlay film inner airway stent of the tubulose of various tracheal fistulas.
The purpose of this utility model is achieved through the following technical solutions:
The anti-slip overlay film inner airway stent of a kind of tubulose, comprise pipe type netted main part and the zigzag horn section that is connected to pipe type netted main part two ends, be covered with rete in pipe type netted main part, its pipe type netted main body overlay film part can play shutoff fistula mouth, prevent the object of granulation tissue hyperplasia, the zigzag horn section at main part two ends is exposed part, not overlay film, can play fixed support, prevent the object that support is shifted.
Pipe type netted main part and zigzag horn section are Nitinol braiding structure.This utility model, according to the needs of individuation, can design the support of different-diameter and length.Stent length is 4 ~ 6cm, and internal diameter is 1. 6 ~ 2.4cm difference, and two ends zigzag fixed part slightly outwards expands, slightly flare.Pellosil is covered in inner surface and/or the inner surface of main part support.
The support that this utility model is designed, its biomechanical characterization more meets the structure of person's windpipe, and is difficult for displacement, is especially difficult for displacement downwards, and can be at DSA(numeral blood vessel substraction machine) under place, adjust its position and taking-up.Thereby overcome, existing trachea bracket is very easily shifted and the defect of granulation tissue hyperplasia, has reduced the complication of support placement in the treatment tracheal stenosis and fistula.
When this support uses, can utilize common inner airway stent conveyer device in the market to carry out in body, carrying, discharging, not need special design carrier, simple, convenient.
The utility model has the advantage of: 1. because the main part of support is full structure of film, therefore effectively the various tracheal fistulas of shutoff, to prevent that hamartoplasia from causing narrow.2. support two ends are fixed part, and indentation is outstanding, and slightly yearns for bulging, can tightly block tube chamber after inserting air flue, can produce good adherent effect, play fixing effect, and a situation arises can effectively to avoid trachea bracket slippage displacement; 3. support can be designed to the size of different sizes, is applicable to the needs of different tracheas; 4. operation is upper, have carry easy, reliable etc., general air flue carrier; 5. in price, compared with import support economy, patient can accept mostly.
This support is removed effect narrow, shutoff fistula mouth to airway constriction, esophago-tracheal fistula, thoracic cavity stomach airway fistula energy air flue due to various benign and malignant diseases, and has reduced the incidence rate of support displacement.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
The specific embodiment
This utility model is further described below in conjunction with accompanying drawing:
As shown in the figure: the anti-slip overlay film inner airway stent of a kind of tubulose, comprise pipe type netted main part 1 and the outwards swollen horn section 2 of zigzag that is positioned at pipe type netted main part two ends, be covered with rete in pipe type netted main part, its pipe type netted main body overlay film part can play shutoff fistula mouth, prevent the object of granulation tissue hyperplasia, the outside bulging horn section 2 of zigzag at two ends is exposed part, not overlay film, can play fixed support, prevent the object that support is shifted.
The outside bulging horn section of pipe type netted main part and zigzag is Nitinol braiding structure.Main part adopts the braiding of filament die machine knitting skill to form by nitinol alloy wire, can be according to the dimensions of patient's measurement data design different-diameter and length, become tubular through heat treatment, main supporting role plays in rack body portion, surface coating, plays the effect that prevents granulation tissue hyperplasia and shutoff fistula mouth.
The horn section of bulging is that hand woven is fixed on main part two ends, and indentation slightly yearn for bulging can tightly block tube chamber after inserting air flue, can produce good adherent effect, plays fixing effect.
Claims (2)
1. the anti-slip overlay film inner airway stent of tubulose, is characterized in that: comprise pipe type netted main part and the zigzag horn section that is connected to pipe type netted main part two ends, be covered with rete in tube-shaped main body part.
2. the anti-slip overlay film inner airway stent of tubulose according to claim 1, is characterized in that: pipe type netted main part and zigzag horn section are Nitinol braiding structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320473481.9U CN203619727U (en) | 2013-08-05 | 2013-08-05 | Tubular anti-skid membrane airway stent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320473481.9U CN203619727U (en) | 2013-08-05 | 2013-08-05 | Tubular anti-skid membrane airway stent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203619727U true CN203619727U (en) | 2014-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320473481.9U Expired - Fee Related CN203619727U (en) | 2013-08-05 | 2013-08-05 | Tubular anti-skid membrane airway stent |
Country Status (1)
| Country | Link |
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| CN (1) | CN203619727U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104434352A (en) * | 2014-12-14 | 2015-03-25 | 韩新巍 | Compliant recyclable airway stent and producing method thereof |
| CN105496615A (en) * | 2016-01-25 | 2016-04-20 | 张�杰 | Covered airway stent |
| CN106175981A (en) * | 2016-03-04 | 2016-12-07 | 上海沐春投资管理有限公司 | A kind of part band film intravenous type support |
| CN107405190A (en) * | 2014-12-19 | 2017-11-28 | 波士顿科学国际有限公司 | Support with anti-displacement feature |
| CN117179958A (en) * | 2023-10-18 | 2023-12-08 | 上海交通大学医学院附属瑞金医院 | Y-shaped tracheal stent and application thereof |
-
2013
- 2013-08-05 CN CN201320473481.9U patent/CN203619727U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104434352A (en) * | 2014-12-14 | 2015-03-25 | 韩新巍 | Compliant recyclable airway stent and producing method thereof |
| CN107405190A (en) * | 2014-12-19 | 2017-11-28 | 波士顿科学国际有限公司 | Support with anti-displacement feature |
| CN107405190B (en) * | 2014-12-19 | 2019-12-17 | 波士顿科学国际有限公司 | Stent with anti-migration feature |
| CN105496615A (en) * | 2016-01-25 | 2016-04-20 | 张�杰 | Covered airway stent |
| CN106175981A (en) * | 2016-03-04 | 2016-12-07 | 上海沐春投资管理有限公司 | A kind of part band film intravenous type support |
| CN117179958A (en) * | 2023-10-18 | 2023-12-08 | 上海交通大学医学院附属瑞金医院 | Y-shaped tracheal stent and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140604 Termination date: 20170805 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |