CN201775697U - Easily-retrievable biliary tract drainage plastic bracket - Google Patents
Easily-retrievable biliary tract drainage plastic bracket Download PDFInfo
- Publication number
- CN201775697U CN201775697U CN2010201808338U CN201020180833U CN201775697U CN 201775697 U CN201775697 U CN 201775697U CN 2010201808338 U CN2010201808338 U CN 2010201808338U CN 201020180833 U CN201020180833 U CN 201020180833U CN 201775697 U CN201775697 U CN 201775697U
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- China
- Prior art keywords
- drainage tube
- biliary tract
- wall
- plastic stent
- retrievable
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- Expired - Fee Related
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- Media Introduction/Drainage Providing Device (AREA)
Abstract
The utility model relates to the technical field of medical appliances, in particular to an easily-retrievable biliary tract drainage plastic bracket comprising a drainage tube, an upper positioning bracket with a downward opening at the upper end of the outer wall of the drainage tube, a lower positioning bracket with an upward opening at the lower end of the outer wall of the drainage tube, a circular shallow groove on the pipe wall above the lower positioning bracket at the lower end of the drainage tube and a straight shallow groove on the opposite pipe wall of the lower positioning bracket, and a fine nylon thread is fixed in the shallow groove and extends downwards to exceed the lower end of the drainage tube. The easily-retrievable biliary tract drainage plastic bracket has increased practical effective length by the added fine nylon thread and is safe and effective to take out by directly grapping the nylon thread in case of internal shift.
Description
Affiliated technical field
This utility model relates to technical field of medical instruments, specifically a kind of easy taking-up formula biliary tract drain plastic stent.
Background technology
Clinically, at present for the main treatment means that much is not suitable for the good malignant disease of operating biliary tract, be to insert the bile duct plastic stent at biliary tract pathological changes region of obstruction, recover and the unobstructed property of assurance biliary system, improve clinical symptoms.After the bile duct plastic stent was inserted bile duct pathological changes region of obstruction, upper end open was positioned at the region of obstruction top, and lower ending opening is positioned at outside the vater's papilla, mainly relied on the location of its upper and lower side to hold in the palm the fixedly position of bile duct plastic stent.But, because the smooth muscle contraction of intestinal and bile duct can cause the peristalsis of intestinal and bile duct, and the resilience that causes of drain bile duct morphosis, cause the bile duct plastic stent to be shifted up or down easily.In when, especially upwards internal shift taking place, the plastic stent lower end usually enters in the vater's papilla fully, lost the function of abundant drain bile duct on the one hand, on the other hand, the displacement repeatedly of bile duct plastic stent upper and lower port causes damage to bile duct and other organ easily.Usually need to take out and change support this moment.At present, generally use methods such as basket, snare, air bag, nipper or support recover to take out the bile duct plastic stent of internal shift clinically, but there is following shortcoming in above removing method: one, support enters vater's papilla fully, can't look at straight under the scope, and can't provide accurate three-dimensional localization under the perspective; Two, support is generally straight tube shape, significantly not outstanding structure grasps for convenient, and various apparatuses can only directly grasp support under situation about can't look at straight, blindly usually cause bile duct injury in the extracting process, the treatment failure, even the generation severe complication needs operative treatment.Therefore, how can take out the bile duct plastic stent of internal shift safely, effectively, be that a great problem to be solved is arranged at present clinically.
Summary of the invention
The difficult deficiency of taking out and causing organ injury easily when overcoming existing biliary tract drain plastic stent generation internal shift, this utility model provides a kind of DANTONG drain plastic stent of easy taking-up formula, can be when support generation internal shift, safely and effectively with its taking-up.
The technical scheme that its technical problem that solves this utility model adopts is: easily take out formula biliary tract drain plastic stent, comprise drainage tube, hold in the palm the location of going up that drainage tube outer wall upper end open is downward, the following location holder that drainage tube outer wall lower ending opening makes progress.Holder top, following location tube wall is provided with a shallow annular groove, and following location holder offside tube wall is provided with always that the shape shallow grooves communicates with annular groove, in the annular groove, thin nylon yarn of tube wall external fixation also the edge directly connected in star extend outwardly beyond the drainage tube end downwards.The design of shallow grooves has increased on the one hand the contact area of nylon yarn and tube wall greatly, has reduced when pulling nylon yarn the partial dissection of tube wall is avoided operation failure; On the other hand, when having fixed nylon yarn, do not reduce the drain diameter of drainage tube, guaranteed the drainage effect of support.Surpass the thin nylon yarn of drainage tube end, extended the effective length of support nipple outside greatly, during internal shift, still have sufficiently long nylon yarn and stay vater's papilla and can look at down extracting straight outward; And thin softer nylon yarn to duodenal wall and the unobstructed property of enteric cavity without any influence.
The beneficial effects of the utility model are when support generation internal shift, can take out the support of internal shift safely, effectively by looking at down the nylon yarn that is fixed in the support lower end that grasp or extract outside the vater's papilla straight.
This utility model is widely used in clinically can producing tangible society, economic benefit.
Description of drawings
Below in conjunction with drawings and Examples this utility model is further specified.
Fig. 1 is a perspective view of the present utility model.
1. drainage tubes among the figure, 2. on location holder, 3. time location holder, 4. shallow annular groove, 5. straight shape shallow grooves, 6. thin nylon yarn.
The specific embodiment
Easy taking-up formula biliary tract drain plastic stent of the present utility model, it comprises drainage tube (1), (2) are held in the palm in the location of going up that drainage tube (1) outer wall upper end open is downward, the following location holder (3) that drainage tube (1) outer wall lower ending opening makes progress, on drainage tube (1) outer wall of following location holder (3) top shallow annular groove (4) is arranged, hold in the palm following location has straight shape shallow grooves (5) on (3) offside drainage tube (1) outer wall and communicates with shallow annular groove (4).Thin nylon wire (6) is fixed in shallow annular groove (4) and the straight shape shallow grooves (5) and extends beyond drainage tube (1) lower end downwards.
During use, this utility model is inserted in the bile duct pathological changes region of obstruction by scope, relies on going up location holder (2) and locating the two ends that holder (3) is positioned at bile duct pathological changes region of obstruction down of its upper and lower side, makes biliary system unimpeded by this utility model.Because the smooth muscle contraction of intestinal and bile duct can cause the peristalsis of intestinal and bile duct, and the resilience that causes of drain bile duct morphosis, make drainage tube (1) that internal shift upwards take place, when the lower end enters vater's papilla fully, be fixed in the nylon yarn (6) in drainage tube (1) lower end annular shallow grooves (4) and the straight shape shallow grooves (5), still have enough length and expose to outside the vater's papilla, can grasp nylon yarn (6) down, take out this utility model safely and effectively by direct-view.
Technical scheme described in the utility model is not limited only to the embodiment of present embodiment record, can also have other embodiment to finish the technical solution of the utility model.
The technology that this utility model is not described in detail, shape partly are known technology.
Claims (3)
1. easily take out formula biliary tract drain plastic stent, it comprises drainage tube (1), (2) are held in the palm in the location of going up that drainage tube (1) outer wall upper end open is downward, the following location holder (3) that drainage tube (1) outer wall lower ending opening makes progress, it is characterized in that: drainage tube (1) lower end location holder (3) top tube wall down is provided with a shallow annular groove (4), following location holder (3) offside tube wall is provided with always that shape shallow grooves (5) communicates with annular groove, and fixing drainage tube (1) lower end that also extends beyond downwards of thin nylon wire (6) is arranged in the groove.
2. easy taking-up formula biliary tract drain plastic stent according to claim 1 is characterized in that: annular groove (4) is positioned at location holder (3) top down.
3. easy taking-up formula biliary tract drain plastic stent according to claim 1 is characterized in that: straight connected in star (5) is positioned at location holder (3) offside down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201808338U CN201775697U (en) | 2010-05-06 | 2010-05-06 | Easily-retrievable biliary tract drainage plastic bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201808338U CN201775697U (en) | 2010-05-06 | 2010-05-06 | Easily-retrievable biliary tract drainage plastic bracket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201775697U true CN201775697U (en) | 2011-03-30 |
Family
ID=43788934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201808338U Expired - Fee Related CN201775697U (en) | 2010-05-06 | 2010-05-06 | Easily-retrievable biliary tract drainage plastic bracket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201775697U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105769399A (en) * | 2014-12-23 | 2016-07-20 | 刘凯 | Pancreatic duct stent capable of being taken out easily |
-
2010
- 2010-05-06 CN CN2010201808338U patent/CN201775697U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105769399A (en) * | 2014-12-23 | 2016-07-20 | 刘凯 | Pancreatic duct stent capable of being taken out easily |
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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: 20110330 Termination date: 20150506 |
|
| EXPY | Termination of patent right or utility model |