CN201684049U - Anti-backflow biliary tract metal film-covered stent - Google Patents
Anti-backflow biliary tract metal film-covered stent Download PDFInfo
- Publication number
- CN201684049U CN201684049U CN 201020205764 CN201020205764U CN201684049U CN 201684049 U CN201684049 U CN 201684049U CN 201020205764 CN201020205764 CN 201020205764 CN 201020205764 U CN201020205764 U CN 201020205764U CN 201684049 U CN201684049 U CN 201684049U
- Authority
- CN
- China
- Prior art keywords
- biliary tract
- metal truss
- film
- metal
- elastic film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Prostheses (AREA)
Abstract
The utility model relates to an anti-backflow biliary tract metal film-covered stent which is characterized in that the anti-backflow biliary tract metal film-covered stent comprises a metal net rack, dumbbell-shaped expandable end stents are arranged at the two ends of the metal net rack, a plurality of tubular stents are arranged at the middle straight cylinder part of the metal net rack, an elastic film which is connected with the metal net rack into a whole body is respectively attached on the internal side and the external side of the metal net rack, the elastic film on the internal side and the elastic film on the external side extend outward from one end of the metal net rack and are combined into one film, a tubular 'sleeve' is formed, and a taking-out line used for taking out the metal net rack and the elastic films which are connected into a whole body is arranged on the expandable end stent at the end of the tubular 'sleeve'. The utility model has the advantages that the structural design is ingenious, the operation is simple and the anti-backflow biliary tract metal film-covered stent can be widely used for medical operations.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, particularly about a kind of anti-metal film coated support of biliary tract that backflows.
Background technology
The seventies in 20th century, people such as Soehendra have proposed biliary tract rack drainage under the scope first.Subsequently, scope pancreas cholangiography (the Endoscopic retrograde cholangiopancreatography that drives in the wrong direction, ERCP) the biliary tract rack drainage becomes the optimum patient of blocking and can not tolerate operating malignant obstructive jaundice patient's wound minimum under application and the scope, and can effectively alleviate the first-selected Therapeutic Method of biliary obstruction symptom.The biliary tract rack drainage is except wound is little under the scope; another advantage is N/R biliary tract distributary phenomenon; can effective persistent bile drainage; the generation of control jaundice; liver under the physiological status that is kept perfectly, gallbladder, pancreas Excretory system, the liver protecting function is little to the digestion function effect; can improve patient's quality of life greatly, prolong survival time of patients.But studies show that, biliary tract rack insert and vater's papilla cuts the sphincteral afunction of Oddis cause, can cause backflowing of duodenum content, and derive from the adherent breeding of antibacterial meeting of enteral in the thing that backflows, form bacterial biof iotalm at the biliary tract inner membrance, therefore caused the alluvial of gallbladder mud and the formation of cholelithiasis, so cause biliary tract stenosis once more, block, symptom such as concurrent acute biliary infection, but threat to life when serious.
Summary of the invention
At the problems referred to above, the purpose of this utility model provides a kind of metal film coated support of the anti-biliary tract that backflows that can prevent effectively that the duodenum content from backflowing.
For achieving the above object, this utility model is taked following technical scheme: a kind of anti-metal film coated support of biliary tract that backflows, it is characterized in that: it comprises a metal truss, the two ends of described metal truss are dumbbell shape expanding end support, middle straight tube position is some pipe joint shape supports, the inboard of described metal truss and the outside have been sticked one deck respectively with its all-in-one-piece elastic film that is flexible coupling, in, the described elastic film in the outside stretches out at an end of described metal truss and synthesizes thin film, become a tubulose " oversleeve ", the described expanding end support of described tubulose " oversleeve " end is provided with one and is used to take out the described metal truss that links into an integrated entity and the taking-up line of elastic film.
Described metal truss adopts hyperelastic nickel peptide alloy to work out.
Described elastic film is a silicone rubber membrane.
This utility model is owing to take above technical scheme, it has the following advantages: 1, this utility model is owing to adopt the metal truss of being worked out by superelastic nickel peptide alloy, the interior outside of this metal truss flexible thin film that is sticked, the entire bracket wall is thin submissive, therefore compression and stretching, can use thinner delivery sheath to insert biliary tract easily, it is unaffected to insert back bile passing away, and support can be according to biliary tract normally walks line bend.2, metal truss monnolithic case of the present utility model is dumbbell shape, insert biliary tract after, a dumbbell shape expanding end is fastened in the biliary tract, another dumbbell shape expanding end is fastened in the duodenum, therefore, is convenient to fix, metal truss is difficult for landing.3, this utility model is owing to the duodenum end at metal truss, extend a tubulose " oversleeve " by elastic film, bile can enter duodenum by metal truss and tubulose " oversleeve ", and when the duodenum internal pressure increases, tubulose " oversleeve " closure, thus stoped the duodenum content to backflow to biliary tract through metal truss.4, this utility model is because the flexible thin film that is sticked in the medial and lateral of metal truss, can prevent not only that therefore biliary tract hamartoplasia from going in the metal truss, and can prevent that the duodenum thing that backflows from backflowing to biliary tract by the metal truss sidewall.5, the dumbbell shape expanding end diameter maximum at this utility model metal truss two ends can reach 1cm, not only can be used for the treatment of good pernicious biliary tract stenosis, after can also being used for the treatment of the incision of vater's papilla flesh, the anti-stream of the duodenum biliary tract due to the vater's papilla flesh dysfunction plays the function that substitutes vater's papilla flesh.This utility model structural design is ingenious, and is simple to operate, can be widely used in the medical operating.
Description of drawings
Fig. 1 is this utility model structural representation
Fig. 2 is this utility model cross sectional representation
Fig. 3 is this utility model elastic film decomposing schematic representation
Fig. 4 is this utility model metal truss structural representation
The specific embodiment
Below in conjunction with drawings and Examples, this utility model is described in detail.
Shown in Fig. 1～4, this utility model comprises that a profile is the metal truss 1 of dumbbell shape, and the inboard of metal truss 1 and the outside one deck elastic film 2 that has been sticked respectively is in metal truss 1 is packaged in.The two ends of metal truss 1 are dumbbell shape expanding end support, and wherein an end is as biliary tract the inner 3, and the other end is as duodenum end 4.The middle straight tube position 5 of metal truss 1 is some pipe joint shape supports, and middle each tubular bracket and two expanding end supports are flexible coupling by medial and lateral elastic film 2 and are integral, can be according to the structure in the biliary tract, and convenient bending, pliability is good.The elastic film 2 that metal truss 1 medial and lateral are sticked stretches out at duodenum end 4 and synthesizes thin film, becomes a tubulose " oversleeve " 6.The duodenum end 4 of metal truss 1 is provided with one and restraints on metal truss 1, and the terminal taking-up line 7 that exposes that extends, take out the end of line 7 by the pulling of support extractor (not shown), metal truss 1 port shrinks, make the metal truss 1 and the elastic film 2 that link into an integrated entity be stretched as slender type, so that from biliary tract, take out.
In the foregoing description, metal truss 1 can adopt hyperelastic nickel peptide alloy to work out, and its surface is netted.
In the foregoing description, elastic film 2 can adopt silicone rubber membrane to make, and tubulose " oversleeve " 6 is formed by the silicone rubber membrane extension that is overlying on the metal truss 1.
Operation principle of the present utility model is: this utility model wall is thin submissive, compresses easily and stretches, can be placed in the thinner delivery sheath, and the employing conventional method is inserted in the biliary tract.After this utility model is inserted biliary tract, extract delivery sheath out, then inner 3 inflating clips of biliary tract are located in the biliary tract, and duodenum end 4 inflating clips are located in the duodenum, and tubulose " oversleeve " 6 also is positioned at duodenum.Under the normal condition, the bile in hepatic secretion and the gallbladder flows into tubulose " oversleeve " 6 by metal truss 1, enters duodenum from tubulose " oversleeve " 6.When the duodenum internal pressure increases, tubulose " oversleeve " 6 is owing to adopt elastic film to make, soft yielding, so can be closed, thereby effectively stoped the duodenum content to backflow to metal truss 1 through tubulose " oversleeve " 6, and then backflow to biliary tract along metal truss 1, solved the backflow problem of biliary tract of duodenum content in the prior art, prevented the generation of biliary tract infection incident.When needs take out this utility model, adopt conventional support extractor lashing wire to belong to the end of the taking-up line 7 on the rack 1 duodenum end 4, metal truss 1 port is shunk, make the metal truss 1 and the elastic film 2 that link into an integrated entity be stretched as slender type, thereby be convenient to take out this utility model.
In the foregoing description, the dumbbell shape expanding end diameter maximum at this utility model metal truss 1 two ends can reach 1cm, not only can be used for the treatment of good pernicious biliary tract stenosis, after can also being used for the treatment of the incision of vater's papilla flesh, the anti-stream of the duodenum biliary tract due to the vater's papilla flesh dysfunction plays the function that substitutes vater's papilla flesh.
The various embodiments described above only are used to illustrate this utility model; wherein the structure of each parts, connected mode etc. all can change to some extent; every equivalents of carrying out on the basis of technical solutions of the utility model and improvement all should not got rid of outside protection domain of the present utility model.
Claims (3)
1. prevent backflowing the metal film coated support of biliary tract for one kind, it is characterized in that: it comprises a metal truss, the two ends of described metal truss are dumbbell shape expanding end support, middle straight tube position is some pipe joint shape supports, the inboard of described metal truss and the outside have been sticked one deck respectively with its all-in-one-piece elastic film that is flexible coupling, in, the described elastic film in the outside stretches out at an end of described metal truss and synthesizes thin film, become a tubulose " oversleeve ", the described expanding end support of described tubulose " oversleeve " end is provided with one and is used to take out the described metal truss that links into an integrated entity and the taking-up line of elastic film.
2. a kind of anti-metal film coated support of biliary tract that backflows as claimed in claim 1, it is characterized in that: described metal truss adopts hyperelastic nickel peptide alloy to work out.
3. a kind of anti-metal film coated support of biliary tract that backflows as claimed in claim 1 or 2, it is characterized in that: described elastic film is a silicone rubber membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020205764 CN201684049U (en) | 2010-05-20 | 2010-05-20 | Anti-backflow biliary tract metal film-covered stent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020205764 CN201684049U (en) | 2010-05-20 | 2010-05-20 | Anti-backflow biliary tract metal film-covered stent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201684049U true CN201684049U (en) | 2010-12-29 |
Family
ID=43372340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020205764 Expired - Fee Related CN201684049U (en) | 2010-05-20 | 2010-05-20 | Anti-backflow biliary tract metal film-covered stent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201684049U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103505308A (en) * | 2013-09-29 | 2014-01-15 | 中国人民解放军第二军医大学 | Anti-regurgitation biliary stent |
| CN104161611A (en) * | 2013-05-15 | 2014-11-26 | 标准科学技术株式会社 | Medical stent having movement prevention means |
| CN105163793A (en) * | 2013-02-28 | 2015-12-16 | 波士顿科学国际有限公司 | Medical devices for use along the biliary and/or pancreatic tract |
| CN105658175A (en) * | 2013-08-07 | 2016-06-08 | 波士顿科学国际有限公司 | Silicone reflux valve for polymeric stents |
| CN106236337A (en) * | 2016-08-31 | 2016-12-21 | 刘卫辉 | A kind of unidirectional valve cribbing drainage system |
| CN108186072A (en) * | 2018-01-19 | 2018-06-22 | 西安交通大学医学院第附属医院 | A kind of anti-stent that backflows coincideing for hollow organ |
| CN108201476A (en) * | 2018-01-19 | 2018-06-26 | 西安交通大学医学院第附属医院 | A kind of anti-attachment that backflows for being loaded into biliary tract rack |
| CN108430387A (en) * | 2016-02-12 | 2018-08-21 | 美敦力瓦斯科尔勒公司 | Stent graft with external support and method |
| US11559412B2 (en) | 2019-01-07 | 2023-01-24 | Boston Scientific Scimed, Inc. | Stent with anti-migration feature |
| US11918496B2 (en) | 2020-12-02 | 2024-03-05 | Boston Scientific Scimed, Inc. | Stent with improved deployment characteristics |
-
2010
- 2010-05-20 CN CN 201020205764 patent/CN201684049U/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109125893A (en) * | 2013-02-28 | 2019-01-04 | 波士顿科学国际有限公司 | The medical device used along biliary tract and/or ductus pancreaticus |
| US11779480B2 (en) | 2013-02-28 | 2023-10-10 | Boston Scientific Scimed, Inc. | Medical devices for use along the biliary and/or pancreatic tract |
| CN105163793A (en) * | 2013-02-28 | 2015-12-16 | 波士顿科学国际有限公司 | Medical devices for use along the biliary and/or pancreatic tract |
| US11229536B2 (en) | 2013-02-28 | 2022-01-25 | Boston Scientific Scimed, Inc. | Medical devices for use along the biliary and/or pancreatic tract |
| US10406007B2 (en) | 2013-02-28 | 2019-09-10 | Boston Scientific Scimed, Inc. | Medical devices for use along the biliary and/or pancreatic tract |
| US10357387B2 (en) | 2013-02-28 | 2019-07-23 | Boston Scientific Scimed, Inc. | Medical devices for use along the biliary and/or pancreatic tract |
| CN104161611A (en) * | 2013-05-15 | 2014-11-26 | 标准科学技术株式会社 | Medical stent having movement prevention means |
| CN105658175A (en) * | 2013-08-07 | 2016-06-08 | 波士顿科学国际有限公司 | Silicone reflux valve for polymeric stents |
| CN105658175B (en) * | 2013-08-07 | 2017-09-19 | 波士顿科学国际有限公司 | Silicone return valve for polymer support |
| CN103505308A (en) * | 2013-09-29 | 2014-01-15 | 中国人民解放军第二军医大学 | Anti-regurgitation biliary stent |
| CN103505308B (en) * | 2013-09-29 | 2015-10-07 | 中国人民解放军第二军医大学 | A kind of anti-reflux biliary tract rack |
| CN108430387A (en) * | 2016-02-12 | 2018-08-21 | 美敦力瓦斯科尔勒公司 | Stent graft with external support and method |
| CN106236337B (en) * | 2016-08-31 | 2019-02-05 | 刘卫辉 | A kind of unidirectional valve formula stent drainage system |
| CN106236337A (en) * | 2016-08-31 | 2016-12-21 | 刘卫辉 | A kind of unidirectional valve cribbing drainage system |
| CN108201476A (en) * | 2018-01-19 | 2018-06-26 | 西安交通大学医学院第附属医院 | A kind of anti-attachment that backflows for being loaded into biliary tract rack |
| CN108186072A (en) * | 2018-01-19 | 2018-06-22 | 西安交通大学医学院第附属医院 | A kind of anti-stent that backflows coincideing for hollow organ |
| US11559412B2 (en) | 2019-01-07 | 2023-01-24 | Boston Scientific Scimed, Inc. | Stent with anti-migration feature |
| US11918496B2 (en) | 2020-12-02 | 2024-03-05 | Boston Scientific Scimed, Inc. | Stent with improved deployment characteristics |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201684049U (en) | Anti-backflow biliary tract metal film-covered stent | |
| JPWO2012111137A1 (en) | Abdominal-venous shunt stent | |
| ATE506098T1 (en) | DEVICE FOR CANNULATING A BLOOD-CARRYING VESSEL | |
| CN205286609U (en) | Interbedded super gentle anti tectorial membrane support of rolling over of treatment aorta | |
| CN111588523A (en) | Support drainage device for correcting biliary stricture | |
| CN201719412U (en) | Biliary stent with anti-backflow flap | |
| CN102363060B (en) | Ureteral stent | |
| CN204971724U (en) | Ureteral stent | |
| CN102500034A (en) | Ureteral stent | |
| CN205964676U (en) | Adopt sacculus pipe of curved form head end | |
| CN103816602A (en) | Biliary tract inner support drainage tube | |
| CN203915740U (en) | Prevent the peritoneal cavity drainage tube stopping up | |
| CN201920790U (en) | Sleeve for isolating small intestine from food | |
| CN2518466Y (en) | Support implanting device for use in aortic dissecting and arch dissecting | |
| CN107174386A (en) | A kind of device for treating pulmonary hypertension | |
| CN202446629U (en) | Ureteral stent tube | |
| CN112842462B (en) | Intravascular delivery device and application thereof | |
| CN208492392U (en) | A kind of biliary tract rack of the built-in anti-valve that backflows | |
| CN104922787A (en) | Urethra expansion conduit | |
| CN215535349U (en) | Choledochus built-in type gallbladder drainage plastic stent easy to take out | |
| KR20110053510A (en) | Catheter structure for stent surgical operation | |
| CN214712945U (en) | Full-film-covering recoverable biliary tract stent | |
| CN205031726U (en) | Stomach tube | |
| CN204233215U (en) | A kind of shutoff stone taking device | |
| CN203736673U (en) | Supporting drainage tube inside biliary tract |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| C56 | Change in the name or address of the patentee | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Zhiqiang Inventor after: Wu Cheng Inventor after: Chen Xiao Inventor after: Zhang Ziqi Inventor before: Wang Zhiqiang Inventor before: Wu Cheng Inventor before: Chen Xiao Inventor before: Zhang Ziqi |
|
| CP03 | Change of name, title or address |
Address after: 100853 Beijing City Fuxing Road south of gastrointestinal endoscopy department of the PLA General Hospital No. 28 Co-patentee after: Wu Cheng Patentee after: Wang Zhiqiang Co-patentee after: Chen Xiao Co-patentee after: Zhang Ziqi Address before: 100853 Beijing City Fuxing Road south of gastrointestinal endoscopy department of the PLA General Hospital No. 28 Co-patentee before: Wu Cheng Patentee before: Wang Zhiqiang Co-patentee before: Chen Xiao Co-patentee before: Zhang Ziqi |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101229 Termination date: 20180520 |