CN204192799U - A kind of antireflux plastics biliary tract rack - Google Patents
A kind of antireflux plastics biliary tract rack Download PDFInfo
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- CN204192799U CN204192799U CN201420667129.3U CN201420667129U CN204192799U CN 204192799 U CN204192799 U CN 204192799U CN 201420667129 U CN201420667129 U CN 201420667129U CN 204192799 U CN204192799 U CN 204192799U
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- antireflux
- valve
- biliary tract
- rack body
- proximal openings
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Abstract
This utility model provides a kind of antireflux plastics biliary tract rack, comprise rack body, described rack body near-end is provided with proximal openings, and far-end is provided with distal openings, the top of described proximal openings is provided with antireflux valve, and described rack body is provided with film flank sheet near the sidewall of proximal openings.The antireflux valve of this product has the effect of one-way cock, namely only allow that bile flows into enteric cavity, some pores on antireflux film lobe, increase drainage effect, even if antireflux valve does not also affect drain when enteric cavity folds, film flank sheet and shelf inner diameter are not cut logical to passage, guarantee antireflux effect, stop intestinal contents to enter biliary system, reduce morbidity frequency.
Description
Technical field
This utility model relates to a kind of plastic stent, particularly a kind of antireflux plastics biliary tract rack.
Background technology
The various malignant tumor such as cancer of biliary duct, carcinoma of gallbladder, cancer of pancreas, carcinoma of ampulla and hilar cholangiocarcinoma can cause stenosis of bile duct or the obturation of different parts, namely malignant obstructive jaundice.Major part malignant obstructive jaundice has been unresectable late tumor when making a definite diagnosis, and its radical excision rate is about 10%-27%.For the patient's palliative therapy in the past of Malignent Biliary Obstruction losing surgical engine meeting or refusal operative treatment, as inner or outer drain of performing the operation, even only row laparotomy exploration.Simple laparotomy exploration often can cause that sb.'s illness took a turn for the worse; Interior drainage of biliary tract and intestine is large because of operation wound, is often difficult to tolerance to the gerontal patient be in a bad way; Though external biliary drainage can subtract Huang, because of bile loss, the severe complication such as electrolyte disturbance and bile duct infection, also can cause death.Biliary stent implantation (endoscopic retrograde biliary drainage, ERBD) damages drainage way in minimum bile at present, and complication rate is low, and drainage effect is good.Advanced Malignant obstruction of biliary tract endoscopic retrograde biliary stent placement is inserted to reach and is subtracted yellow object, improves the quality of living, extends life cycle.
Early complication after placing rack mainly acute cholangitis, its incidence rate is generally about 10%.Duodenal-biliary reflux is the one of the main reasons causing cholangitis, and namely after malignant biliary obstruction place Stent Implantation, the food in intestinal and antibacterial oppositely can enter biliary tract, cause retrograde infection.This just needs to design the New-support of a kind of near-end with anti-reflux valve, and this valve has the effect of one-way cock, namely only allows that bile flows into enteric cavity, stops intestinal contents to enter biliary system, reduces morbidity frequency.
Utility model content
Utility model object: technical problem to be solved in the utility model is for the deficiencies in the prior art, provides a kind of antireflux plastics biliary tract rack.
In order to solve the problems of the technologies described above, the utility model discloses a kind of antireflux plastics biliary tract rack, comprise rack body, described rack body near-end is provided with proximal openings, far-end is provided with distal openings, the top of described proximal openings is provided with antireflux valve, and described rack body is provided with film flank sheet near the sidewall of proximal openings.
In this utility model, described antireflux valve is provided with one group of pore.
In this utility model, described antireflux valve can be arranged to column type or Duckbill type.
In this utility model, described film flank sheet by rack side wall outer surface cut form and not with the inner space of support.Namely be not communicated with to passage with shelf inner diameter.
Beneficial effect: the antireflux valve of this product has the effect of one-way cock, namely only allow that bile flows into enteric cavity, some pores on antireflux film lobe, increase drainage effect, even if antireflux valve does not also affect drain when enteric cavity folds, film flank sheet is not cut logical, guarantees antireflux effect, stop intestinal contents to enter biliary system, reduce morbidity frequency.
Accompanying drawing explanation
To do this utility model below in conjunction with the drawings and specific embodiments and further illustrate, above-mentioned or otherwise advantage of the present utility model will become apparent.
Fig. 1 is the structural representation of antireflux plastics biliary tract rack;
Fig. 2 is the structural representation of antireflux valve;
Fig. 3 a and Fig. 3 b is nipple type reflux valve end view;
Fig. 3 c is the end view of Duckbill type reflux valve.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is elaborated.
As shown in Figure 1, this utility model comprises support 1, proximal openings 2, distal openings 3, antireflux valve 4, film flank sheet 5 and pore 6, the two ends of support 1 are proximal openings 2 and distal openings 3, the top of proximal openings 2 is provided with antireflux valve 4, antireflux valve 4 is provided with some pores 6, the top end face of antireflux valve 4 is provided with can unidirectional closed opening, and support 1 sidewall is provided with film flank sheet 5.
Wherein, support is made up of tubular material, entirety is partially curved, near-end is arranged to boss-shaped, be convenient to antireflux valve bonding after seamlessly transit, film flank sheet on rack side wall tilts laterally, film flank sheet is cut by rack side wall outer surface material and forms, and film flank sheet is not cut logical in working angles with rack bore, can be set to 2-4 sheet, guarantees antireflux effect, described rack body is made up of macromolecular material, as polyurethane, politef, PPDO, and support can be arranged to linear type or L-type, and antireflux valve is made up of macromolecular material.
In Fig. 2, comprise antireflux valve 4 and pore 6, some pores 6 are distributed on antireflux valve 4, for increasing drainage effect.In Fig. 3 a and Fig. 3 b, nipple type antireflux valve can be divided into 3 lobes or 4 lobes for unidirectional drainage.
Fig. 3 c is Duckbill type antireflux valve, and end face has flatly for unidirectional drainage.
This utility model provides a kind of antireflux plastics biliary tract rack; the method and access of this technical scheme of specific implementation is a lot; the above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from this utility model principle, can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.The all available prior art of each ingredient not clear and definite in the present embodiment is realized.
Claims (4)
1. an antireflux plastics biliary tract rack, it is characterized in that, comprise rack body (1), described rack body (1) near-end is provided with proximal openings (2), far-end is provided with distal openings (3), the top of described proximal openings (2) is provided with antireflux valve (4), and described rack body (1) is provided with film flank sheet (5) near the sidewall of proximal openings (2).
2. a kind of antireflux plastics biliary tract rack according to claim 1, is characterized in that, described antireflux valve (4) is provided with one group of pore (6).
3. a kind of antireflux plastics biliary tract rack according to claim 1, is characterized in that, column type or Duckbill type are arranged in the top of described antireflux valve (4).
4. a kind of antireflux plastics biliary tract rack according to claim 1, is characterized in that, described film flank sheet (5) by rack side wall outer surface cut form and not with the inner space of support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420667129.3U CN204192799U (en) | 2014-11-10 | 2014-11-10 | A kind of antireflux plastics biliary tract rack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420667129.3U CN204192799U (en) | 2014-11-10 | 2014-11-10 | A kind of antireflux plastics biliary tract rack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204192799U true CN204192799U (en) | 2015-03-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420667129.3U Active CN204192799U (en) | 2014-11-10 | 2014-11-10 | A kind of antireflux plastics biliary tract rack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204192799U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109223265A (en) * | 2018-10-31 | 2019-01-18 | 胡冰 | A kind of opening balloon type biliary tract anti-countercurrent stent |
-
2014
- 2014-11-10 CN CN201420667129.3U patent/CN204192799U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109223265A (en) * | 2018-10-31 | 2019-01-18 | 胡冰 | A kind of opening balloon type biliary tract anti-countercurrent stent |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 610041 Department of Gastroenterology, West China Hospital,, Wuhou District, Sichuan, China, Sichuan University, 37 Patentee after: Hu Bing Patentee after: MICRO-TECH (NANJING) CO., LTD. Address before: 610041 Department of Gastroenterology, West China Hospital,, Wuhou District, Sichuan, China, Sichuan University, 37 Patentee before: Hu Bing Patentee before: Nanjing Micro-Tech Co., Ltd. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20170425 Address after: 610041 Department of Gastroenterology, West China Hospital,, Wuhou District, Sichuan, China, Sichuan University, 37 Patentee after: Hu Bing Address before: 610041 Department of Gastroenterology, West China Hospital,, Wuhou District, Sichuan, China, Sichuan University, 37 Co-patentee before: MICRO-TECH (NANJING) CO., LTD. Patentee before: Hu Bing |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200925 Address after: 610000, 37, Guoxue Road, Chengdu, Sichuan, Wuhou District Patentee after: WEST CHINA HOSPITAL, SICHUAN University Address before: 610041 digestive tract, West China Hospital,, Wuhou District 37, Chengdu, Sichuan, China Patentee before: Hu Bing |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210312 Address after: 213125 No.52, Guoxiang Road, Wujin economic development zone, Changzhou City, Jiangsu Province Patentee after: JIANGSU WEIDEKANG MEDICAL SCIENCE & TECHNOLOGY Co.,Ltd. Address before: No. 37, Wuhou District National School Lane, Chengdu, Sichuan Province Patentee before: WEST CHINA HOSPITAL, SICHUAN University |
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| TR01 | Transfer of patent right |