CN204734578U - Anti biliary tract support that backflows - Google Patents
Anti biliary tract support that backflows Download PDFInfo
- Publication number
- CN204734578U CN204734578U CN201520478268.6U CN201520478268U CN204734578U CN 204734578 U CN204734578 U CN 204734578U CN 201520478268 U CN201520478268 U CN 201520478268U CN 204734578 U CN204734578 U CN 204734578U
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- CN
- China
- Prior art keywords
- stake body
- valve
- biliary tract
- tectorial membrane
- bile
- Prior art date
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Abstract
The utility model relates to an anti biliary tract support that backflows, including the hollow stake body of both ends open -ended, crisscross lines make the stake body have shrink nature on the stake body, the stake body divide into tectorial membrane section stake body and non - tectorial membrane section stake body, be provided with the valve, the both ends of valve are macrostoma and osculum, and wherein the macrostoma is connected in the inner wall of non - tectorial membrane section stake body, the utility model has the advantages of after the focus was put into to this support, can be smooth open was stopped up or constrictive biliary tract, realized the following current function of bile, the uniflow of valve can the effectual phenomenon of backflowing of overcoming the intestines content to the design, in addition, the normal flow of pancreatic juice can also be guaranteed to the effectual too fast bile of the hindrance once more passageway of tumour that prevents of the design of partial tectorial membrane ability.
Description
Technical field
this utility model relates to a kind of Medical rack, is particularly useful for the support to bile duct and drainage.
Background technology
The bile of hepatic secretion, by the common bile duct, the vater's papilla arrival duodenum that are attached thereto, then digest food, this is normal physiological structure.Wherein vater's papilla plays the effect of one-way cock, makes bile can only forward flow, and intestinal contents (food and antibacterial) choledoch-situation of backflowing can not be had to occur.
When ampulla there is neoplastic lesion or the situation such as distal common bile duct is narrow time, will biliary enteric anastomosis or stent endoprosthesis be carried out:
1. biliary enteric anastomosis makes common bile duct directly be connected with jejunum, makes vater's papilla disabler.
2. stent endoprosthesis is inserted by the support that is only played channeling, struts diseased region.
Above-mentioned two kinds of operations, have all lacked original one-way function, have caused the phenomenon that intestinal contents backflows repeatedly.This not only can cause reflux cholangitis, also can lead lithogenicly to send out again, and can cause the narrow of anastomotic stoma and canceration may.Visible, for the disabler of vater's papilla and the phenomenon of backflowing caused, effective means must be had to be overcome.
Utility model content
The purpose of this utility model is to provide a kind of anti-reflux biliary tract rack to make up the deficiency of prior art.
This utility model is the technical scheme adopted that achieves the goal: anti-reflux biliary tract rack, comprises the stake body of the hollow of both ends open, and lines staggered on stake body make stake body have contractility;
It is characterized in that: stake body is divided into overlay film section stake body and non-overlay film section stake body;
Be provided with valve, the two ends of valve are large mouth and osculum, and wherein large mouth is connected to the inwall of non-overlay film section stake body;
The large mouth of valve, to the direction of osculum, is bile flow.
Optimize: it is inner that valve is all positioned at non-overlay film section stake body.
The beneficial effects of the utility model are: after focus inserted by this support, can open inaccessible or narrow biliary tract smoothly, realize the following current function of bile; The single flow direction design of valve effectively can overcome the phenomenon of backflowing of intestinal contents; In addition, the bile of the obstruction again passage that the design of part overlay film can effectively prevent tumor too fast, can also ensure the proper flow of pancreatic juice.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Embodiment:
In the drawings, 1 is overlay film section stake body, and 2 is non-overlay film section stake body, and 4 is valves, and 5 is large mouths, and 6 is osculums, and 7 is common bile duct, and 8 is duodenums, and 9 is ductus pancreaticus.
Skeleton in overlay film section stake body 1 and non-overlay film section stake body 2, by metal (Nitinol), can be that braiding or engrave forms, its objective is and make it have contractility and elastic force.
Valve 4 is made for politef, has the advantage that nontoxic, aging resistance, bile not easily adhere to.
When neoplastic lesion appears in ampulla or distal common bile duct is narrow, the tumor that bile duct passage can be inflated or the blocking of inflammation enlargement position, make bile can not under normal stream.In this case, doctor, after liver or biliary tract execute paracentesis, will be placed on biliary tract and duodenal middle part in this of compressive state in constraint component.
After support is inserted and put in place, extract constraint component out, support self expand into normal condition, is strutted by pressurized biliary tract, makes bile flow to duodenum from the hollow space in stake body.
The meaning arranging overlay film section stake body 1 is: the tumor of biliary tract or the growth of intestinal inwall, and tunicle stops, the gap through lines that can not be too fast grows into the hollow space in stake body, again hinders the flowing of bile.
The meaning arranging non-overlay film section stake body 2 is: this position is the access section of ductus pancreaticus, pancreatic juice in ductus pancreaticus 9 can between lines gap enter in non-overlay film section stake body 2, flow into intestinal from the osculum 6 of valve 4 again, this just provides a passage for the smooth outflow of pancreatic juice.
The most important thing is the anti-reflux effect of valve 4: bile flows to intestinal from hollow space through large mouth 5, osculum 6, this is a forward flow process.And due to the size of osculum 6 less, and being flexible material, under the peristaltic pressure power effect of intestinal, is closure state, the bile duct so intestinal contents can not backflow.That is, valve 4 serves the function of the one-way flow of original vater's papilla.
In the present embodiment, valve 4 is all positioned at stake body inside, namely the end of osculum 6 does not exceed the end of non-overlay film section stake body 2, such meaning is: during installation, the valve 4 of the stake body and inside thereof that are in compressive state is an entirety, can easierly stretch into from puncturing hole, valve 4 can not produce other inhibition.
Claims (2)
1. anti-reflux biliary tract rack, comprises the stake body of the hollow of both ends open, and lines staggered on stake body make stake body have contractility;
It is characterized in that: stake body is divided into overlay film section stake body and non-overlay film section stake body;
Be provided with valve, the two ends of valve are large mouth and osculum, and wherein large mouth is connected to the inwall of non-overlay film section stake body;
The large mouth of valve, to the direction of osculum, is bile flow.
2. anti-reflux biliary tract rack according to claim 1, is characterized in that: it is inner that valve is all positioned at non-overlay film section stake body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520478268.6U CN204734578U (en) | 2015-07-06 | 2015-07-06 | Anti biliary tract support that backflows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520478268.6U CN204734578U (en) | 2015-07-06 | 2015-07-06 | Anti biliary tract support that backflows |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204734578U true CN204734578U (en) | 2015-11-04 |
Family
ID=54416342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520478268.6U Expired - Fee Related CN204734578U (en) | 2015-07-06 | 2015-07-06 | Anti biliary tract support that backflows |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204734578U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106236337A (en) * | 2016-08-31 | 2016-12-21 | 刘卫辉 | A kind of unidirectional valve cribbing drainage system |
| CN108030572A (en) * | 2017-11-29 | 2018-05-15 | 天津大学 | A kind of valve prevents the biliary tract rack that backflows |
| CN109589189A (en) * | 2018-11-30 | 2019-04-09 | 宋勇 | A kind of oddis sphincter bionic device |
-
2015
- 2015-07-06 CN CN201520478268.6U patent/CN204734578U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106236337A (en) * | 2016-08-31 | 2016-12-21 | 刘卫辉 | A kind of unidirectional valve cribbing drainage system |
| CN106236337B (en) * | 2016-08-31 | 2019-02-05 | 刘卫辉 | A kind of unidirectional valve formula stent drainage system |
| CN108030572A (en) * | 2017-11-29 | 2018-05-15 | 天津大学 | A kind of valve prevents the biliary tract rack that backflows |
| CN109589189A (en) * | 2018-11-30 | 2019-04-09 | 宋勇 | A kind of oddis sphincter bionic device |
| CN109589189B (en) * | 2018-11-30 | 2020-12-01 | 陕西省人民医院 | Bionic oddis sphincter device |
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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: 20151104 Termination date: 20160706 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |