CN201719412U - Biliary stent with anti-backflow flap - Google Patents

Biliary stent with anti-backflow flap Download PDF

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Publication number
CN201719412U
CN201719412U CN2010201972328U CN201020197232U CN201719412U CN 201719412 U CN201719412 U CN 201719412U CN 2010201972328 U CN2010201972328 U CN 2010201972328U CN 201020197232 U CN201020197232 U CN 201020197232U CN 201719412 U CN201719412 U CN 201719412U
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CN
China
Prior art keywords
antireflux
film
lobe
film lobe
nitinol
Prior art date
Application number
CN2010201972328U
Other languages
Chinese (zh)
Inventor
冷德嵘
胡冰
陈美娟
Original Assignee
南京微创医学科技有限公司
胡冰
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Publication date
Application filed by 南京微创医学科技有限公司, 胡冰 filed Critical 南京微创医学科技有限公司
Priority to CN2010201972328U priority Critical patent/CN201719412U/en
Application granted granted Critical
Publication of CN201719412U publication Critical patent/CN201719412U/en

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Abstract

The utility model discloses a biliary stent with anti-backflow flap. The stent comprises a netty cylindrical support frame (1) woven by titanium-nickel memory alloy wires and is characterized in that one end of the support frame (1) is hung with an elliptic anti-backflow flap (2) or a conical anti-backflow flap (5). The biliary stent with the anti-backflow flap comprises a netty cylindrical support frame (9) woven by titanium-nickel memory alloy wires and is characterized in that the near-end adduction port of the support frame (9) is connected with a nipple-shaped anti-backflow flap (10). The biliary stent can play the role of resisting backflow more effectively, the anti-backflow effect can not change along with the position of the patient, the nipple-shaped anti-backflow flap can prevent the duodenum contents from retaining at the end part of the stent so as to keep the stent to be unobstructed and obtain better curing effect.

Description

The biliary tract rack that has antireflux film lobe

Technical field

This utility model relates to a kind of medical apparatus and instruments, especially a kind of biliary tract rack, specifically a kind of biliary tract rack that has antireflux film lobe.

Background technology

At present, the biliary tract rack of clinical use does not have anti-reflux ability or anti-reflux ability not good, though stent endoprosthesis has solved biliary tract stenosis substantially and has blocked problem, but tube chamber is bigger after the support complete expansion, when support one end was kept somewhere outside vater's papilla, the very easy anti-biliary system that flows into that drives in the wrong direction of enteric cavity content and intestinal bacteria caused biliary tract infection, cause support block to lose efficacy, serious infection even can jeopardize patient's life.How improving the anti-reflux characteristic of biliary tract rack, improve the treatment success rate of biliary tract rack, is to alleviate patient's misery and improve patient's key of quality of life.

Summary of the invention

This utility model is placed the problem that easily causes anti-stream behind the biliary tract prosthesis at vater's papilla afunction patient, design a kind of biliary tract rack that has antireflux film lobe, to improve the anti-reflux characteristic of biliary tract rack, improve the treatment success rate of biliary tract rack, alleviate patient's misery and improve patient's quality of life.

The technical solution of the utility model is:

A kind of biliary tract rack that has antireflux film lobe comprises by the netted cylindrical support frame 1 of ti-ni shape memory alloy silk braiding, it is characterized in that being equipped with in an end of described bracing frame 1 oval antireflux film lobe 2 or conical antireflux film lobe 5.

A kind of biliary tract rack that has antireflux film lobe comprises by the netted cylindrical support frame 9 of ti-ni shape memory alloy silk braiding, it is characterized in that being equipped with in an end of described bracing frame 9 nipple shape antireflux film lobe 10.

Described oval antireflux film lobe 2 is made up of medical silica-gel film 3 and Nitinol supporting wire 4, medical silica-gel film 3 is the ellipsoid structure of hollow, have a circle shirt rim at ellipsoidal edge, medical silica-gel film 3 inside are lined with Nitinol supporting wire 4, Nitinol supporting wire 4 has at least four straight lines that always extend to the edge, shirt rim from the summit to form with the oval supporting wire in order to supporting ellipse shape pellosil 3 edges that links to each other with this straight line, and an end of medical silica-gel film 3 oval major axis links to each other with mesh-supported frame 1 and is suspended in the mesh-supported frame 1.

Described conical antireflux film lobe 5 is made up of Nitinol supporting wire 7, Nitinol connecting filament 6 and medical silica-gel film 8, medical silica-gel film 8 is the similar conical structure of hollow, at least be lined with six roots of sensation Nitinol supporting wire 7 in the inside of medical silica-gel film 8, conical antireflux film lobe 8 is connected in the end of mesh-supported frame 1 by the Nitinol connecting filament 6 of the vertex of a cone.

The proximal port of described netted cylindrical support frame 9 is interior slightly to be received, and the interior then port of receiving links to each other with nipple shape antireflux film lobe 10, and the otch of nipple shape antireflux film lobe 10 head ends can be cross (11), also can be in-line 12.

The beneficial effects of the utility model:

1, new structure antireflux film lobe can more effectively play the antireflux effect.

2, the antireflux effect of support not due to illness people's position change and change, therapeutic effect is better.

3, nipple shape antireflux film lobe can not be stranded in content in the duodenum at support one end, makes the long-term unobstructed property of antireflux film better.

Description of drawings

Fig. 1 is one of structural representation of the present utility model.

Fig. 2 is the structural representation of the oval antireflux film lobe that matches with Fig. 1.

Fig. 3 is the structural representation of the oval antireflux medical silica-gel film that matches with Fig. 1.

Fig. 4 is two of a structural representation of the present utility model.

Fig. 5 is the structural representation of the conical antireflux film lobe that matches with Fig. 4.

Fig. 6 is the structural representation of the conical antireflux medical silica-gel film that matches with Fig. 4.

Fig. 7 is three of a structural representation of the present utility model.

Fig. 8 is that the otch that matches with Fig. 7 is the structural representation of criss-cross nipple shape antireflux film lobe.

Fig. 9 is that the otch that matches with Fig. 7 is the structural representation of the nipple shape antireflux film lobe of in-line.

The specific embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is further described.

Embodiment one.

As Figure 1-3.

A kind of biliary tract rack that has antireflux film lobe comprises that the inside of cylindrical support frame 1 or outside can be covered with medical film by the netted cylindrical support frame 1 of ti-ni shape memory alloy silk braiding.End at described bracing frame 1 is lifted with oval antireflux film lobe 2, as shown in Figure 1.Oval antireflux film lobe 2 is made up of medical silica-gel film 3 and Nitinol supporting wire 4, medical silica-gel film 3 is the ellipsoid structure of hollow, as shown in Figure 3, have a circle shirt rim at ellipsoidal edge, medical silica-gel film 3 inside are lined with Nitinol supporting wire 4, Nitinol supporting wire 4 has at least four straight lines that always extend to the edge, shirt rim from the summit to form with the oval supporting wire in order to supporting ellipse shape pellosil 3 edges that links to each other with this straight line, as shown in Figure 2, one end of medical silica-gel film 3 oval major axis links to each other with mesh-supported frame 1 and is suspended in the mesh-supported frame 1, as shown in Figure 1.

Embodiment two.

Shown in Fig. 4-6.

A kind of biliary tract rack that has antireflux film lobe comprises that the inside of cylindrical support frame 1 or outside can be covered with medical film by the netted cylindrical support frame 1 of ti-ni shape memory alloy silk braiding.Conical antireflux film lobe 5 is installed in an end of described bracing frame 1.As shown in Figure 4, described conical antireflux film lobe 5 is made up of Nitinol supporting wire 7, Nitinol connecting filament 6 and medical silica-gel film 8, as shown in Figure 5, medical silica-gel film 8 is the similar conical structure of hollow, as Fig. 6, at least be lined with six roots of sensation Nitinol supporting wire 7 in the inside of medical silica-gel film 8, conical antireflux film lobe 8 is connected in the end of mesh-supported frame 1 by the Nitinol connecting filament 6 of the vertex of a cone.

Can on the mould that makes, go out the shape of required supporting wire when oval antireflux film lobe 2 of the present utility model or conical antireflux film lobe 5 concrete manufacturings with Ti-Ni alloy silk material through heat treatment process, and then be covered with pellosil typing, at last the antireflux film lobe that makes is connected to an end of mesh-supported frame 1, one end of medical silica-gel film 3 oval major axis links to each other with mesh-supported frame 1, Nitinol connecting filament 6 is connected to an end of mesh-supported frame 1 with antireflux film lobe 5, and medical silica-gel film 8 is not connected with mesh-supported frame 1.

The antireflux film lobe 2 of mesh-supported frame 1 one ends or antireflux film lobe 5, when normal stool, gallbladder shrinks, and can open automatically under biliary pressure, makes bile enter duodenum smoothly.Film lobe closure when outflows such as anacholia, enteric cavity content and intestinal bacteria etc. can instead not flowed back to common bile duct, have the sphincteral antireflux effect of similar vater's papilla.

Embodiment three.

Shown in Fig. 7-9.

A kind of biliary tract rack that has antireflux film lobe comprises by the netted cylindrical support frame 9 of ti-ni shape memory alloy silk braiding, it is characterized in that being equipped with in an end of described bracing frame 9 nipple shape antireflux film lobe 10.As shown in Figure 7, the proximal port of netted cylindrical support frame 9 is interior slightly to be received, and the interior then port of receiving links to each other with nipple shape antireflux film lobe 10.As shown in Figure 8, the otch of nipple shape antireflux film lobe 10 head ends can be cross 11, and as shown in Figure 9, the otch of nipple shape antireflux film lobe 10 head ends also can be in-line 12.

Nipple shape antireflux film lobe 10 of the present utility model can be covered with the pellosil typing when specifically making on mould, at last the antireflux film lobe 10 that makes is connected to the near-end of mesh-supported frame 9.

The antireflux film lobe 10 of mesh-supported frame 9 near-ends not only has the effect of antireflux, can also prevent that the duodenum content is stranded in the support port, makes the long-term unobstructed property of antireflux film better.

This utility model does not relate to the part prior art that maybe can adopt all same as the prior art to be realized.

Claims (5)

1. biliary tract rack that has antireflux film lobe, comprise by the netted cylindrical support frame (1) of ti-ni shape memory alloy silk braiding, it is characterized in that in an end of described bracing frame (1), being equipped with oval antireflux film lobe (2) or conical antireflux film lobe (5).
2. a biliary tract rack that has antireflux film lobe comprises by the netted cylindrical support frame (9) of ti-ni shape memory alloy silk braiding, it is characterized in that being equipped with in an end of described bracing frame (9) nipple shape antireflux film lobe (10).
3. the biliary tract rack that has antireflux film lobe according to claim 1, it is characterized in that described oval antireflux film lobe (2) is made up of medical silica-gel film (3) and Nitinol supporting wire (4), medical silica-gel film (3) is the ellipsoid structure of hollow, have a circle shirt rim at ellipsoidal edge, medical silica-gel film (3) inside is lined with Nitinol supporting wire (4), Nitinol supporting wire (4) has at least four straight lines that always extend to the edge, shirt rim from the summit to form with the oval supporting wire in order to supporting ellipse shape pellosil (3) edge that links to each other with this straight line, and an end of the oval major axis of medical silica-gel film (3) links to each other with mesh-supported frame (1) and is suspended in the mesh-supported frame (1).
4. the biliary tract rack that has antireflux film lobe according to claim 1, it is characterized in that described conical antireflux film lobe (5) is made up of Nitinol supporting wire (7), Nitinol connecting filament (6) and medical silica-gel film (8), medical silica-gel film (8) is the conical structure of hollow, at least be lined with six roots of sensation Nitinol supporting wire (7) in the inside of medical silica-gel film (8), conical antireflux film lobe (8) is connected in the end of mesh-supported frame (1) by Nitinol connecting filament (6).
5. the biliary tract rack that has antireflux film lobe according to claim 2, interior slightly receipts of proximal port that it is characterized in that described netted cylindrical support frame (9), the port of receiving then links to each other with nipple shape antireflux film lobe (10), and the otch of nipple shape antireflux film lobe (10) head end is cross (11) or in-line (12).
CN2010201972328U 2010-05-20 2010-05-20 Biliary stent with anti-backflow flap CN201719412U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010201972328U CN201719412U (en) 2010-05-20 2010-05-20 Biliary stent with anti-backflow flap

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010201972328U CN201719412U (en) 2010-05-20 2010-05-20 Biliary stent with anti-backflow flap

Publications (1)

Publication Number Publication Date
CN201719412U true CN201719412U (en) 2011-01-26

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Cited By (4)

* Cited by examiner, † Cited by third party
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
CN105662665A (en) * 2016-03-14 2016-06-15 蔡秀军 Anti-regurgitation gallbladder-intestine stent
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
CN106963526A (en) * 2017-04-25 2017-07-21 天津大学 A kind of blocked flake type anti-reflux support

Cited By (6)

* Cited by examiner, † Cited by third party
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
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
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
CN105662665A (en) * 2016-03-14 2016-06-15 蔡秀军 Anti-regurgitation gallbladder-intestine stent
CN106963526A (en) * 2017-04-25 2017-07-21 天津大学 A kind of blocked flake type anti-reflux support

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C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee
CP03 Change of name, title or address

Address after: 210061 Nanjing hi tech Industrial Development Zone, Jiangsu hi tech Road, No. three, No. 10

Patentee after: MICRO-TECH (NANJING) CO., LTD.

Patentee after: Hu Bing

Address before: 210061 Nanjing Province, Pukou District, Nanjing hi tech Development Zone, hi tech Road No. three, No. 10, No.

Patentee before: Nanjing Micro-Tech Co., Ltd.

Patentee before: Hu Bing

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20170223

Address after: 210061 Nanjing Province, Pukou District, Nanjing hi tech Development Zone, hi tech Road No. three, No. 10, No.

Patentee after: Hu Bing

Address before: 210061 Nanjing hi tech Industrial Development Zone, Jiangsu hi tech Road, No. three, No. 10

Patentee before: MICRO-TECH (NANJING) CO., LTD.

Patentee before: Hu Bing

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: 20110126

Termination date: 20180520