CN104524683B - A kind of anti-biliary stent backflowed - Google Patents
A kind of anti-biliary stent backflowed Download PDFInfo
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- CN104524683B CN104524683B CN201510042322.7A CN201510042322A CN104524683B CN 104524683 B CN104524683 B CN 104524683B CN 201510042322 A CN201510042322 A CN 201510042322A CN 104524683 B CN104524683 B CN 104524683B
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- section
- valve body
- sterile
- spheroid
- bacterium
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Abstract
The invention discloses a kind of anti-biliary stent backflowed, the drainage tube includes conduction hose, described conduction hose is divided into external section, sterile section in bile duct has bacterium section with alimentary canal, wherein, sterile section of tube wall is provided with conduction hole, the tube wall for having bacterium section is provided with Medium Diffusion hole, sterile section and it is described have be provided with check valve between bacterium section, described check valve is by valve body, spheroid and two stretch cord compositions, wherein, described valve body is tubulose, and it is provided with interior chamfering towards have bacterium section one, one of two described stretch cords is relatively fixed in the valve body towards on the inwall of sterile section one, other end merges the same point for being fixed on the spherome surface, all the time spheroid is pulled in the interior chamfering, one of valve body is set to seal；Described interior chamfering is less than or equal to 30 degree.The drainage tube can effectively prevent gastric juice or other contents adverse current from entering biliary tract, and will not stop opposing traffic of the seal wire in drainage tube.
Description
Technical field
The present invention relates to human body drainage catheter or hollow probe, and in particular to a kind of anti-biliary stent backflowed.
Background technology
Liver cancer bile duct is invaded or cholangiocarcinoma later stage patient easily causes choledochus obstruction, and bile can not be discharged and helped digest,
Usually cause patient's jaundice, indigestion etc., so as to need percutaneous transhepatic puncture to carry out biliary tract expansion, dredging drainage
(PTCD), need to place biliary stent mostly after the completion of operation, though drainage tube energy bile drainage originally, mitigates jaundice,
Help digest, but drainage tube connection biliary tract and stomach end are accessible duplex channel, after bile is drained, gastrointestinal pressure be more than or
During equal to binary passage presyure, gastric juice or other contents can usually drive in the wrong direction inflow biliary tract, cause infection of biliary tract.
Most importantly, due to which drainage tube is soft, needs seal wire to strengthen hardness in the following two cases and use cooperatively：
The first situation：, it is necessary to seal wire first be inserted biliary tract, then draining-tube cover when drainage tube sends into biliary tract
Seal wire enters biliary tract, drainage tube could be imported biliary tract, in this case, comparatively, seal wire is opened from the nearly stomach end of drainage tube
Mouth walks to nearly courage end to go out through external opening.
Second of situation：Seal wire is needed to dredge in blocked drainage tube, or drainage tube extracts biliary tract out, it is necessary in drainage tube interpolation
Enter a seal wire stiffened, then drainage tube is extracted out from biliary tract, in the case of this two kinds, seal wire is the external opening entrance from drainage tube
Nearly courage end is walked to nearly stomach end opening.
It can be seen that, drainage tube must is fulfilled for the opposing traffic requirement of seal wire.
If solving, " when gastrointestinal pressure is more than or equal to binary passage presyure, gastric juice or other contents usually can be inverse
Row flow into biliary tract, cause infection of biliary tract " technical problem, and add a check valve, then seal wire lived by unidirectional valve guard, can stop
Having free passage for seal wire, is analyzed as follows：
The existing check valve with spring, seal wire can not all pass through drainage tube from two openings, i.e., can not meet seal wire
The first above-mentioned situation and second of situation.
Authorization Notice No. discloses a kind of anti-bile duct internal and external drainage that backflows for CN 203749989U utility model patent and led
Pipe, sterile section of pipe and it is described have be provided with check valve between bacterium section pipe, it discloses two kinds of one-way valve structures：
1st, the embodiment 1 of this application provides a kind of check valve of following structure, and the check valve includes and drainage catheter body
Barrier sheet and stopper that madial wall is connected with each other, the one of barrier sheet is sloped downwardly, and one is formed between barrier sheet and stopper
Opening is (as shown in Fig. 7 of above-mentioned utility application).It can be seen that, wherein described check valve is valve plate-type check valve, but
It is that this one-way valve structures have following technological deficiency：In surgical procedure, the side that seal wire can only flow along bile to alimentary canal
To insertion drainage catheter, reversely it can not then pass through.
2nd, the embodiment 2 of this application provides a kind of check valve of following structure, and the check valve includes and the drainage catheter
The stop circle that body madial wall is connected with each other, stops the centre of circle to lower recess, it is soft rubber structure to stop circle.But, root
According to the accompanying drawing 8 of above description and the above-mentioned utility application of combination, those skilled in the art can not understand the institute of embodiment 2
State the check valve what structure check valve is.We assume that check valve described in embodiment 2 is conventional by valve body, steel ball, compression
The ball type check valve of the compositions such as spring, it is seen that there is also the same defect of embodiment 1 for the embodiment.
In a word, check valve described in above-mentioned utility model can not meet the opposing traffic requirement of seal wire.
The content of the invention
The technical problems to be solved by the invention provide a kind of anti-biliary stent backflowed, and the drainage tube can be effective
Prevent gastric juice adverse current from entering biliary tract, and opposing traffic of the seal wire in drainage tube will not be stopped.
The scheme that the present invention solves above-mentioned technical problem is as follows：
A kind of anti-biliary stent backflowed, the drainage tube includes conduction hose, described conduction hose be divided into external section,
Sterile section in bile duct has bacterium section with alimentary canal, wherein, sterile section of tube wall is provided with conduction hole, on the tube wall for having bacterium section
Provided with Medium Diffusion hole, sterile section and it is described have be provided with check valve between bacterium section, it is characterised in that：
Described check valve is made up of valve body, spheroid and two stretch cords, wherein, described valve body is tubulose, and towards having
One of bacterium section is provided with interior chamfering, and one of two described stretch cords is relatively fixed in the valve body towards in sterile section one
On wall, other end merges the same point for being fixed on the spherome surface, all the time pulls in the interior chamfering spheroid, makes valve body
One sealing；Described interior chamfering is less than or equal to 30 degree.
The further improvement project difference of biliary stent of the present invention is as described below：
One towards two relative provided with two sections of grooves on the inwall of sterile section one, described stretch cords of described valve body
It is separately fixed in the groove, to improve fixed effect.
The surface of described spheroid is provided with a recess, and the other end of two described stretch cords, which merges, is fixed on the recess
It is interior, to improve fixed effect.
The valve body also is provided with interior chamfering towards sterile section one, in order to insert seal wire.
The preferred angle of described interior chamfering is 16 degree.
This anti-biliary stent backflowed, check valve can reach auxiliary gallbladder function, increase in bile or need digestion to eat
During thing, food stimulus gallbladder contraction, spheroid left side (biliary tract) pressure is more than right side (alimentary canal), bile impact spheroid, stretch cord
Elongate, spheroid is moved to alimentary canal, and bile is discharged into alimentary canal by Medium Diffusion hole and the mouth of pipe.When bile is drained, pressure balance or
When pressure is more than binary passage presyure power in alimentary canal, stretch cord retracts spheroid the port of valve body, and the port of spheroid and valve body is closely sealed,
Gastric juice and content are blocked and are unable to reflux, so that reaching prevents the purpose of infection.
The present invention has the following advantages relative to prior art：
Therefore seal wire, is worked as the reset element of spheroid using stretch cord due to the check valve in technical solution of the present invention
From sterile section to when having the bacterium section to pass through, seal wire can directly push spheroid open from two stretch cords, by spheroid with interior chamfering
Smoothly check valve is passed through between valve interior wall；When seal wire is from when having bacterium section to be passed through to sterile section, seal wire is from spheroid with being fallen with
Spheroid is extruded between valve interior wall at angle, in the presence of the reaction force on the inclined-plane of the interior chamfering, spheroid is easy to along institute
The inclined-plane for stating interior chamfering opposite side is left by sealed port to a movement for having bacterium section, and seal wire is then smoothly passed through unidirectionally
Valve.
Brief description of the drawings
Fig. 1 (longitudinally cuts open for the structural representation of a specific embodiment of the anti-biliary stent backflowed of the present invention
Depending on).
The schematic enlarged-scale view that Fig. 2 is in Fig. 1 local I.
Fig. 3 is the schematic enlarged-scale view of valve body in Fig. 2.
Fig. 4 is the schematic enlarged-scale view of spheroid in Fig. 2.
Fig. 5 is view of the bile by check valve during drainage tube, and the arrow in figure in conduction hose represents bile
From sterile section to have bacterium section flowing schematic diagram.
Fig. 6 be seal wire by view during check valve of the present invention, the four-headed arrow in figure represents that wire is worn
The more direction of motion of check valve (the need for clear, the diameter amplification of middle figure seal wire).
Embodiment
The invention will be further described with reference to the accompanying drawings and examples.
Such as Fig. 1~Fig. 4, whole biliary stent is made up of conduction hose check valve.Described conduction hose is divided into vitro
Section 6, sterile section 7 and there is bacterium section 8, wherein, sterile section 7 of tube wall is provided with conduction hole 5, and the tube wall for having bacterium section 8 is provided with medium
Diffusion hole 1, sterile section 7 and have bacterium section 8 between be provided with check valve.
Referring to Fig. 2, described check valve is made up of valve body 2, spheroid 3 and two stretch cords 4, wherein, valve body 2 is tubulose,
It is provided with interior chamfering α towards have bacterium section 8 one, and α is equal to 16 degree, and interior undercut ss is provided with towards sterile section 7 one, and β is also equal to 16
Degree；Valve body 2 is provided with two sections of grooves 9 towards relative on the inwall of sterile section 7 one, and the surface of spheroid 3 is provided with a recess 10, two bullets
One opposite adhesive of power rope 4 is fixed in two sections of grooves 9, and other end, which merges, to be adhesively fixed in recess 10, all the time by spheroid 3
Pull in the interior chamfering, make one of valve body 2 to seal.
In surgical procedure, make sterile section 7 of this anti-biliary stent backflowed to be through in biliary tract, there is bacterium section 8 to put in digestion
In road (such as stomach), external section 6 is stretched out in vitro.Referring to Fig. 5, this anti-biliary stent backflowed can reach auxiliary gallbladder function,
When bile increases or needs digestion food, food irritates (biliary tract) pressure on the left of gallbladder contraction, spheroid and is more than right side (alimentary canal),
Bile impacts spheroid 3, and stretch cord 4 is elongated, and spheroid 3 is moved to alimentary canal, and bile is discharged into digestion by Medium Diffusion hole 1 and the mouth of pipe
Road.When bile is drained, and pressure is more than binary passage presyure power in pressure balance or alimentary canal, spheroid 3 is withdrawn into court by stretch cord 4 to be had
In the interior chamfering of bacterium section 8 one, the port of spheroid 3 and valve body 2 is closely sealed, and gastric juice and content are blocked and are unable to reflux, so that
Reaching prevents the purpose of infection.
Referring to Fig. 6 and Fig. 3 is combined, in surgical procedure, when seal wire 12 is from the sterile of biliary stent 11 of the present invention
Section 7 is to when having the bacterium section 8 to pass through, and seal wire 12 can be from directly pushing spheroid 3 open, by spheroid 3 with having interior chamfering between two stretch cords 4
Smoothly check valve is passed through between the inwall of valve body 2 at α；When seal wire 12 from biliary stent 11 of the present invention have bacterium section 8 to
When passing through for sterile section 7, seal wire 12 is from spheroid 3 and with spheroid 3 is extruded between the inwall of valve body 2 at interior chamfering α, in interior chamfering α
Inclined-plane reaction force in the presence of, spheroid 3 is easy to along the inclined-plane of interior chamfering α opposite sides to there is bacterium section one of 8 to move
Leave by sealed port, seal wire 12 then smoothly passes through check valve.As can be seen here, this anti-biliary stent backflowed, which overcomes, awards
Weigh the defect that notification number scheme described in CN 203749989U utility application is present.
Claims (5)
1. a kind of anti-biliary stent backflowed, the drainage tube includes conduction hose, described conduction hose is divided into external section, courage
Sterile section in pipe has bacterium section with alimentary canal, wherein, sterile section of tube wall is provided with conduction hole, is set on the tube wall for having bacterium section
Have a Medium Diffusion hole, sterile section and it is described have be provided with check valve between bacterium section, it is characterised in that：
Described check valve is made up of valve body, spheroid and two stretch cords, wherein, described valve body is tubulose, and towards there is bacterium section
One be provided with interior chamfering, one of two described stretch cords is relatively fixed in the valve body towards the inwall of sterile section one
On, other end merges the same point for being fixed on the spherome surface, all the time pulls in the interior chamfering spheroid, makes the one of valve body
Head sealing；Described interior chamfering is less than or equal to 30 degree.
2. a kind of anti-biliary stent backflowed according to claim 1, it is characterised in that：Described valve body is towards sterile section
Relative provided with two sections of grooves on the inwall of one, one of two described stretch cords is separately fixed in the groove.
3. a kind of anti-biliary stent backflowed according to claim 2, it is characterised in that：The surface of described spheroid is set
There is a recess, the other end of two described stretch cords, which merges, to be fixed in the recess.
4. a kind of anti-biliary stent backflowed according to claim 3, it is characterised in that：The valve body is towards sterile section one
Head also is provided with interior chamfering.
5. a kind of anti-biliary stent backflowed according to claim 4, it is characterised in that：Described interior chamfering is 16
Degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510042322.7A CN104524683B (en) | 2015-01-27 | 2015-01-27 | A kind of anti-biliary stent backflowed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510042322.7A CN104524683B (en) | 2015-01-27 | 2015-01-27 | A kind of anti-biliary stent backflowed |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104524683A CN104524683A (en) | 2015-04-22 |
| CN104524683B true CN104524683B (en) | 2017-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510042322.7A Expired - Fee Related CN104524683B (en) | 2015-01-27 | 2015-01-27 | A kind of anti-biliary stent backflowed |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105266935B (en) * | 2015-11-23 | 2017-10-13 | 孙思予 | A kind of antireflux film omasum courage anastomosis bracket |
| CN105944194B (en) * | 2016-05-28 | 2021-11-09 | 庄华敏 | Atomizer with prevent atomized liquid backward flow |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1274329A (en) * | 1997-09-19 | 2000-11-22 | 沃特福尔公司 | Contamination-safe multi-dose dispensing and delivery system for flowable materials |
| CN102205167A (en) * | 2011-01-17 | 2011-10-05 | 青岛市市立医院 | Integrated biliary tract internal irradiation balloon drainage tube |
| CN203749989U (en) * | 2014-04-04 | 2014-08-06 | 赵中伟 | Anti-reflux biliary tract internal-external drainage catheter |
| CN204446915U (en) * | 2015-01-27 | 2015-07-08 | 南方医科大学 | A kind of anti-biliary stent backflowed |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2218105A1 (en) * | 1995-03-30 | 1996-10-03 | Heartport, Inc. | Endovascular cardiac venting catheter and method |
-
2015
- 2015-01-27 CN CN201510042322.7A patent/CN104524683B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1274329A (en) * | 1997-09-19 | 2000-11-22 | 沃特福尔公司 | Contamination-safe multi-dose dispensing and delivery system for flowable materials |
| CN102205167A (en) * | 2011-01-17 | 2011-10-05 | 青岛市市立医院 | Integrated biliary tract internal irradiation balloon drainage tube |
| CN203749989U (en) * | 2014-04-04 | 2014-08-06 | 赵中伟 | Anti-reflux biliary tract internal-external drainage catheter |
| CN204446915U (en) * | 2015-01-27 | 2015-07-08 | 南方医科大学 | A kind of anti-biliary stent backflowed |
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| Publication number | Publication date |
|---|---|
| CN104524683A (en) | 2015-04-22 |
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