CN202146373U - Backflow preventive covered esophagus stent - Google Patents
Backflow preventive covered esophagus stent Download PDFInfo
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- CN202146373U CN202146373U CN201120218143U CN201120218143U CN202146373U CN 202146373 U CN202146373 U CN 202146373U CN 201120218143 U CN201120218143 U CN 201120218143U CN 201120218143 U CN201120218143 U CN 201120218143U CN 202146373 U CN202146373 U CN 202146373U
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- valve
- backflows
- bag
- esophagus
- backflow preventive
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Abstract
Disclosed is a backflow preventive covered esophagus stent. At least two bag-shaped backflow preventive valves which are in mutually contact connection are arranged at the edge of the lower end of an inner cavity of the covered esophagus stent, openings of the bag-shaped backflow preventive valves are downward, outer edges of tops of the bag-shaped backflow preventive valves and outer edges of sides of the bag-shaped backflow preventive valves are respectively fixedly connected with an inner cavity covered film, and after being in mutually contact connection, the bag-shaped backflow preventive valves completely seal the inner cavity of the covered esophagus stent. When flowing upwards, gastric contents firstly enter a bag-shaped structure from the lower ends of the bag-shaped backflow preventive valves, the bag-shaped backflow preventive valves are completely filled and expanded and cannot excessively overturn upwards, accordingly, the bag-shaped backflow preventive valves can completely seal a food channel in the middle of the covered esophagus stent, one-way food passing can be controlled really, and backflow of the gastric contents is prevented effectively. The backflow preventive covered esophagus stent has the advantages of simple and unique structure, convenience in use, capabilities of not only dilating the esophagus of a patient but preventing backflow of the gastric contents, fine service effect and the like, and has practicality and popularization values.
Description
Technical field
This utility model relates to the improvement of Esophageal Stent structure, is a kind of anti-coated esophagus support that backflows specifically, belongs to medical apparatus and instruments.
Background technology
The distal esophagus that causes because of a variety of causes or the patient of preventricular stenosis insert a traditional band film Esophageal Stent at diseased region usually, to guarantee patient's normal feed, alleviate the patient suffering, improve patients ' life quality.This band film Esophageal Stent is rim of a cup shape, sphere, taper shape or straight shape by two ends, and the silica gel thin film of lining constitutes in middle cylindrical mesh-supported frame and the bracing frame.But the anti-recirculation device of present clinical employed band film Esophageal Stent, majority perhaps only is provided with the anti-sheet that backflows of membrane-like; Do not possess the unidirectional ability of passing through of control food; After the patient inserts this type of support, still have gastric content to backflow, cause the many malaise symptoms of patient.Discovery has and in band film Esophageal Stent, is provided with anti-backflow skirt film or cone-shaped membrane, but still has reliably anti-backflowing effect, prevents the weak effect that backflows.
Summary of the invention
The purpose of this utility model is to above-mentioned deficiency, a kind of uniqueness simple in structure, esophagus easy to use, not only expansible is provided but also can prevents the anti-coated esophagus support that backflows that gastric content backflows, result of use is good.
The technical scheme that realizes this utility model purpose is: this anti-coated esophagus support that backflows; Constitute by the coated esophagus rack body; Characteristics are the edges in coated esophagus rack body cylindrical cavity lower end, are provided with at least two and are in contact with one another the connection anti-valve that backflows of bag shape that Open Side Down, and the top outward flange of the anti-valve that backflows of bag shape is fixedly connected with the inner chamber overlay film respectively with lateral outward flange; After the anti-valve that backflows of bag shape is in contact with one another connection, the inner chamber of complete closed coated esophagus support.
The anti-valve that backflows of bag shape; By valve above semicircle or segmental be connected with its straight line and form to the side valve that extends below; The arc outward flange of top valve is fixedly connected with the inner chamber overlay film respectively with the outward flange of side valve, above valve, side valve and the inner chamber overlay film that is fixedly connected with it constitute the anti-valve that backflows of the bag shaped structure that Open Side Down.
In order to reach the best anti-effect of backflowing; Edge in coated esophagus rack body cylindrical cavity lower end; Be provided with 3 and be in contact with one another the connection anti-valve that backflows of bag shape that Open Side Down; 10-20 millimeters of the height of the anti-valve that backflows of bag shape, after the anti-valve that backflows of bag shape is in contact with one another connection, the inner chamber of complete closed coated esophagus support.
This utility model can be selected raw materials such as existing ti-ni shape memory alloy silk, silica gel thin film for use, and adopts conventional processes to make.
The anti-operation principle of backflowing of this utility model is: when food during by the upper end downward end motion of coated esophagus support, rely on gravity and swallow strength, food can be pushed the anti-valve that backflows of bag shape at an easy rate open; And when gastric content upwards backflows; Gastric content at first gets in the bag shaped structure from the lower end of the anti-valve that backflows of bag shape, the anti-valve that backflows of bag shape is full of fully, props up, because the top outward flange of the anti-valve that backflows of bag shape closely is connected with the silica gel thin film of two sides outward flange with bracing frame and lining; And also be in contact with one another connection between the side valve of the anti-valve that backflows of bag shape; The anti-valve that backflows can excessively not overturn to the upper end, therefore, this bag shape is anti-backflow valve can the intermediary passage of food of complete closed coated esophagus support; Thereby real realization control the unidirectional of food passes through, and effectively prevents backflowing of gastric content.
The utlity model has uniqueness simple in structure, esophagus easy to use, not only expansible but also can prevent advantages such as gastric content backflows, result of use is good, have practical and popularizing value.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of this utility model.
The specific embodiment
This utility model is further described with the embodiment that provides below in conjunction with accompanying drawing.
With reference to accompanying drawing; This anti-coated esophagus support that backflows; Be conical, middle cylindrical by two ends; The coated esophagus rack body 1 that is made up of the silica gel thin film that is covered in the mesh-supported frame of ti-ni shape memory alloy silk establishment and the bracing frame constitutes, for drawing clear, the concrete figure of omission mesh-supported frame among the figure.
Edge in coated esophagus rack body cylindrical cavity 1-1 lower end is provided with 3 and is in contact with one another the connection anti-valve 2 that backflows of bag shape that Open Side Down.The anti-valve that backflows of each bag shape; By valve 2-3 above segmental be connected with its straight line and form to interconnective 2 the side valve 2-4 that extend below; The arc outward flange 2-1 of top valve and the outward flange 2-2 of 2 side valves are fixedly connected with the inner chamber overlay film respectively, above valve, side valve and the inner chamber overlay film that is fixedly connected with it constitute the anti-valve that backflows of the bag shaped structure that Open Side Down.After the anti-valve that backflows of bag shape is in contact with one another connection, the inner chamber of complete closed coated esophagus rack body.
This utility model applicant presses embodiment; Select raw materials such as ti-ni shape memory alloy silk, silica gel thin film for use, implement this anti-coated esophagus support that backflows, long 150 millimeters of coated esophagus support, 20 millimeters of intracavity diameters; Edge in coated esophagus rack body cylindrical cavity lower end; Be provided with 3 and be in contact with one another the connection anti-valve that backflows of bag shape that Open Side Down, it is fan-shaped that the top valve of the anti-valve that backflows of each bag shape is 120 degree, 10 millimeters of the height of the anti-valve that backflows of each bag shape.
Through inner on probation the demonstration, this anti-coated esophagus support that backflows, uniqueness simple in structure, easy to use, safe and reliable.When food during by the upper end downward end motion of coated esophagus support, rely on gravity and swallow strength, food can be pushed the anti-valve that backflows of bag shape that the thin silicon glued membrane is processed at an easy rate open; And when gastric content upwards backflowed, gastric content at first got in the bag shaped structure from the lower ending opening of the anti-valve that backflows of bag shape, shown in arrow among the figure, the anti-valve that backflows of bag shape was full of fully, propped up.At this moment; Because the outward flange of the top valve of the anti-valve that backflows of bag shape and the outward flange of two sides valve closely are connected with the silica gel thin film of bracing frame and lining; And be in contact with one another connection between the side valve of the anti-valve that backflows of bag shape, the anti-valve that backflows can excessively not overturn to the upper end, reach the purpose that prevents that gastric content from backflowing; Trial effect is desirable, receives person on probation's favorable comment.
Claims (3)
1. prevent backflowing the coated esophagus support for one kind; Constitute by the coated esophagus rack body; It is characterized in that edge, be provided with at least two and be in contact with one another the connection anti-valve that backflows of bag shape that Open Side Down that the top outward flange of the anti-valve that backflows of bag shape is fixedly connected with the inner chamber overlay film respectively with lateral outward flange in coated esophagus rack body cylindrical cavity lower end; After the anti-valve that backflows of bag shape is in contact with one another connection, the inner chamber of complete closed coated esophagus support.
2. the anti-coated esophagus support that backflows according to claim 1; It is characterized in that the anti-valve that backflows of bag shape; By valve above semicircle or segmental be connected with its straight line and form to the side valve that extends below; The arc outward flange of top valve is fixedly connected with the inner chamber overlay film respectively with the outward flange of side valve, above valve, side valve and the inner chamber overlay film that is fixedly connected with it constitute the anti-valve that backflows of the bag shaped structure that Open Side Down.
3. the anti-coated esophagus support that backflows according to claim 1; It is characterized in that edge in coated esophagus rack body cylindrical cavity lower end; Be provided with 3 and be in contact with one another the connection anti-valve that backflows of bag shape that Open Side Down; 10-20 millimeters of the height of the anti-valve that backflows of bag shape, after the anti-valve that backflows of bag shape is in contact with one another connection, the inner chamber of complete closed coated esophagus support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120218143U CN202146373U (en) | 2011-06-26 | 2011-06-26 | Backflow preventive covered esophagus stent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120218143U CN202146373U (en) | 2011-06-26 | 2011-06-26 | Backflow preventive covered esophagus stent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202146373U true CN202146373U (en) | 2012-02-22 |
Family
ID=45587452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120218143U Expired - Fee Related CN202146373U (en) | 2011-06-26 | 2011-06-26 | Backflow preventive covered esophagus stent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202146373U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104095696A (en) * | 2013-04-08 | 2014-10-15 | 上海市同济医院 | Intraesophageal stent used for esophageal rupture and stomal leak plugging |
| CN104771253A (en) * | 2014-01-14 | 2015-07-15 | 上海市同济医院 | Degradable backflow-prevention esophagastro anastomosis support |
| CN106308985A (en) * | 2015-07-03 | 2017-01-11 | 上海交通大学医学院附属新华医院 | Anti-backflow biliary tract drainage support |
| CN107822750A (en) * | 2017-12-15 | 2018-03-23 | 郑州大学第附属医院 | Pipeline anti-reflux support |
| CN108030572A (en) * | 2017-11-29 | 2018-05-15 | 天津大学 | A kind of valve prevents the biliary tract rack that backflows |
| CN108186160A (en) * | 2017-11-28 | 2018-06-22 | 王勇 | The anti-Esophageal Stent that backflows of one kind |
| CN109481106A (en) * | 2018-12-13 | 2019-03-19 | 常州新区佳森医用支架器械有限公司 | The anti-bracket that backflows of esophagus |
-
2011
- 2011-06-26 CN CN201120218143U patent/CN202146373U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104095696A (en) * | 2013-04-08 | 2014-10-15 | 上海市同济医院 | Intraesophageal stent used for esophageal rupture and stomal leak plugging |
| CN104095696B (en) * | 2013-04-08 | 2016-06-29 | 上海市同济医院 | For the stent in esophagus that ER and anastomotic leakage block |
| CN104771253A (en) * | 2014-01-14 | 2015-07-15 | 上海市同济医院 | Degradable backflow-prevention esophagastro anastomosis support |
| CN104771253B (en) * | 2014-01-14 | 2016-06-08 | 上海市同济医院 | The anti-esophagus and stomach anastomosis bracket that backflows of a kind of degradable |
| CN106308985A (en) * | 2015-07-03 | 2017-01-11 | 上海交通大学医学院附属新华医院 | Anti-backflow biliary tract drainage support |
| CN106308985B (en) * | 2015-07-03 | 2020-08-25 | 上海交通大学医学院附属新华医院 | Anti-reflux biliary drainage stent |
| CN108186160A (en) * | 2017-11-28 | 2018-06-22 | 王勇 | The anti-Esophageal Stent that backflows of one kind |
| CN108030572A (en) * | 2017-11-29 | 2018-05-15 | 天津大学 | A kind of valve prevents the biliary tract rack that backflows |
| CN107822750A (en) * | 2017-12-15 | 2018-03-23 | 郑州大学第附属医院 | Pipeline anti-reflux support |
| CN107822750B (en) * | 2017-12-15 | 2023-09-26 | 郑州大学第一附属医院 | Anti-backflow support for pipeline |
| CN109481106A (en) * | 2018-12-13 | 2019-03-19 | 常州新区佳森医用支架器械有限公司 | The anti-bracket that backflows of esophagus |
| CN109481106B (en) * | 2018-12-13 | 2023-11-10 | 常州新区佳森医用支架器械有限公司 | Anti-reflux bracket for esophagus |
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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: 20120222 Termination date: 20140626 |
|
| EXPY | Termination of patent right or utility model |