CN104524683A - Biliary tract drainage tube capable of preventing reflux - Google Patents
Biliary tract drainage tube capable of preventing reflux Download PDFInfo
- Publication number
- CN104524683A CN104524683A CN201510042322.7A CN201510042322A CN104524683A CN 104524683 A CN104524683 A CN 104524683A CN 201510042322 A CN201510042322 A CN 201510042322A CN 104524683 A CN104524683 A CN 104524683A
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- section
- valve body
- drainage tube
- spheroid
- aseptic
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Abstract
The invention discloses a biliary tract drainage tube capable of preventing reflux. The drainage tube comprises a drainage hose, wherein the drainage hose is divided into an in-vitro section, a sterile section in the biliary tract and a bacterial section in the digestive tract; a drainage hole is formed in the hose wall of the sterile section, a medium diffusion hole is formed in the hose wall of the bacterial section, a one-way valve is arranged between the sterile section and the bacterial section, and the one-way valve consists of a valve body, a sphere body and two elastic ropes; the valve body is tubular, one head of the valve body facing towards the bacterial section is provided with an inner converse angle, one head of each of the two elastic ropes is relatively fixed on the inner wall of one head of the valve body facing towards the sterile section, and the other heads of the two elastic ropes are combined to be fixed on the same point of the surface of the sphere body for always pulling the sphere body into the inner converse angle so as to ensure that one head of the valve body is sealed; and the inner converse angle is less than or equal to 30 degrees. By adopting the drainage tube disclosed by the invention, gastric juice or other contents can be effectively prevented from reversely flowing into the biliary tract; and meanwhile, the two-way movement of a guide wire in the drainage tube cannot be blocked.
Description
Technical field
The present invention relates to human body drainage catheter or hollow probe, be specifically related to a kind of anti-biliary stent backflowed.
Background technology
Hepatocarcinoma bile duct is invaded or cancer of biliary duct later stage patient easily causes choledochus obstruction, bile can not be discharged and be helped digest, usually cause patient's jaundice, dyspepsia etc., thus need percutaneous to carry out biliary tract expansion through liver puncture, dredging drainage (PTCD), mostly need to place biliary stent after operation completes, though drainage tube energy bile drainage originally, alleviate jaundice, help digest, but drainage tube connects biliary tract and stomach end is accessible duplex channel, after bile is drained, when gastrointestinal pressure is more than or equal to binary passage presyure, gastric juice or other content usually can drive in the wrong direction and flow into gallbladder road, cause biliary tract infection.
The most important thing is, because drainage tube is soft, need in the following two cases seal wire add strong hardness with the use of:
The first situation: when drainage tube sends into biliary tract, need first seal wire to be inserted biliary tract, then draining-tube cover seal wire and is entered biliary tract, drainage tube could be imported biliary tract, in the case, comparatively speaking, seal wire walks nearly gallbladder end from the nearly stomach end opening of drainage tube to go out through external opening.
The second situation: need seal wire to dredge at blocked drainage tube, or drainage tube extracts biliary tract out, need to insert a seal wire stiffened in drainage tube, then drainage tube is extracted out from biliary tract, in these two kinds of situations, seal wire enters nearly gallbladder end from the external opening of drainage tube walk nearly stomach end opening and go out.
Visible, drainage tube must meet the opposing traffic requirement of seal wire.
If the technical problem of " when gastrointestinal pressure is more than or equal to binary passage presyure, gastric juice or other content usually can drive in the wrong direction inflow biliary tract, cause biliary tract infection " in order to solve; and add a check valve; then seal wire is lived by unidirectional valve guard, can stop having free passage of seal wire, be analyzed as follows:
The existing check valve with spring, seal wire all cannot pass drainage tube from two openings, namely cannot meet the first situation above-mentioned and the second situation of seal wire.
Authorization Notice No. is that the utility model patent of CN 203749989U discloses a kind of anti-bile duct internal and external drainage conduit that backflows, and aseptic section of pipe and described having between bacterium section pipe are provided with check valve, it discloses two kinds of one-way valve structures:
1, the embodiment 1 of this application provides a kind of check valve of following structure, this check valve comprises and the interconnective barrier sheet in drainage catheter body medial wall and stopper, the side of barrier sheet is downward-sloping, forms an opening (as shown in Fig. 7 of above-mentioned utility application) between barrier sheet and stopper.Visible, wherein said check valve is valve plate-type check valve, but this one-way valve structures exists following technological deficiency: in operation process, and drainage catheter is inserted in the direction that seal wire can only flow along bile to digestive tract, oppositely then cannot pass through.
2, the embodiment 2 of this application provides a kind of check valve of following structure, and this check valve comprises and enclosing with described drainage catheter body medial wall interconnective the stop, stops that the centre of circle is to lower recess, stops that circle is for soft rubber structure.But, according to description above and in conjunction with the accompanying drawing 8 of above-mentioned utility application, it is the check valve of what structure that those skilled in the art cannot understand check valve described in embodiment 2.We suppose that check valve described in embodiment 2 is the conventional ball type check valve be made up of valve body, steel ball, Compress Spring etc., and this embodiment also exists the same defect of embodiment 1 as seen.
In a word, check valve described in above-mentioned utility model cannot meet the opposing traffic requirement of seal wire.
Summary of the invention
Technical problem to be solved by this invention provides a kind of anti-biliary stent backflowed, and this drainage tube can effectively prevent gastric juice adverse current from entering biliary tract, and can not stop the opposing traffic of seal wire in drainage tube.
The scheme that the present invention solves the problems of the technologies described above is as follows:
A kind of anti-biliary stent backflowed, this drainage tube comprises conduction hose, described conduction hose is divided into has bacterium section in external section, in bile duct aseptic section and digestive tract, wherein, the tube wall of aseptic section is provided with conduction hole, have the tube wall of bacterium section to be provided with Medium Diffusion hole, aseptic section and described having between bacterium section are provided with check valve, it is characterized 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 being one of bacterium section to be provided with interior chamfering, one of two described stretch cords is fixed on described valve body relatively towards on the inwall of aseptic section, other end merges the same point being fixed on described spherome surface, is pulled to by spheroid in described interior chamfering all the time, makes a sealing of valve body; Described interior chamfering is less than or equal to 30 degree.
The further improvement project of biliary stent of the present invention is as described below respectively:
Described valve body is relatively provided with two sections of grooves on the inwall of aseptic section, and one of two described stretch cords is separately fixed in described groove, to improve fixed effect.
The surface of described spheroid is provided with a recess, and the other end merging of two described stretch cords is fixed in described recess, to improve fixed effect.
Described valve body is also provided with interior chamfering towards aseptic section one, so that 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, when bile increases or needs digest food, food stimulus gallbladder contraction, on the left of spheroid, (biliary tract) pressure is greater than right side (digestive tract), and bile impacts spheroid, and stretch cord elongates, spheroid moves to digestive tract, and bile enters digestive tract by Medium Diffusion hole and the mouth of pipe.When bile is drained, when in pressure balance or digestive tract, pressure is greater than binary passage presyure power, spheroid is retracted the port of valve body by stretch cord, and the port of spheroid and valve body is closely sealed, and gastric juice and content are blocked and can not reflux, thus reach the object of protecting from infection.
The present invention has following advantage relative to prior art:
Because the check valve in technical solution of the present invention adopts stretch cord as the reposition element of spheroid, therefore, when seal wire is from aseptic section to when having bacterium section to pass through, seal wire directly can push spheroid open from two stretch cords, passes through check valve smoothly by between spheroid and the valve interior wall with interior chamfering; When seal wire is from when having bacterium section to pass through to aseptic section, seal wire extrudes spheroid between spheroid and the valve interior wall with interior chamfering, under the effect of the counteracting force on the inclined-plane of described interior chamfering, spheroid is convenient to leave by the port sealed along the inclined-plane of described interior chamfering opposite side to there being bacterium section movement, and seal wire then passes through check valve smoothly.
Accompanying drawing explanation
Fig. 1 is the structural representation (longitudinally analysing and observe) of a specific embodiment of the anti-biliary stent backflowed of the present invention.
Fig. 2 is the schematic enlarged-scale view of local I in Fig. 1.
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 the view of bile by check valve during drainage tube, and the arrow in figure in conduction hose represents bile by aseptic section to the schematic diagram having bacterium section to flow.
Fig. 6 be seal wire by view during check valve of the present invention, the four-headed arrow in figure represents that wire passes through the direction of motion (in order to clearly need, the diameter of middle figure seal wire amplifies) of check valve.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.
As Fig. 1 ~ Fig. 4, whole biliary stent is made up of conduction hose check valve.Described conduction hose is divided into external section 6, aseptic section 7 and have bacterium section 8, wherein, the tube wall of aseptic section 7 is provided with conduction hole 5, has the tube wall of bacterium section 8 to be provided with Medium Diffusion hole 1, aseptic section 7 and have between bacterium section 8 and be provided with check valve.
See Fig. 2, described check valve is made up of valve body 2, spheroid 3 and two stretch cords 4, and wherein, valve body 2 is tubulose, and it is towards there being one of bacterium section 8 to be provided with interior chamfering α, and α equals 16 degree, be provided with interior undercut ss, and β also equals 16 degree towards aseptic section 7 one; Valve body 2 is relatively provided with two sections of grooves 9 on the inwall of aseptic section 7 one, the surface of spheroid 3 is provided with a recess 10, an opposite adhesive of two stretch cords 4 is fixed in two sections of grooves 9, other end merging is adhesively fixed in recess 10, all the time spheroid 3 is pulled in described interior chamfering, make a sealing of valve body 2.
In operation process, make aseptic section 7 of this anti-biliary stent backflowed to be through in biliary tract, have bacterium section 8 to put in digestive tract (as stomach), external section 6 is stretched out external.See Fig. 5, this anti-biliary stent backflowed can reach auxiliary gallbladder function, when bile increases or needs digest food, food irritates gallbladder contraction, on the left of spheroid, (biliary tract) pressure is greater than right side (digestive tract), and bile impacts spheroid 3, and stretch cord 4 elongates, spheroid 3 moves to digestive tract, and bile enters digestive tract by Medium Diffusion hole 1 and the mouth of pipe.When bile is drained, when in pressure balance or digestive tract, pressure is greater than binary passage presyure power, spheroid 3 is withdrawn into towards having in bacterium section 8 one in chamfering by stretch cord 4, and spheroid 3 is closely sealed with the port of valve body 2, gastric juice and content are blocked and can not reflux, thus reach the object of protecting from infection.
See Fig. 6 and composition graphs 3, in operation process, when seal wire 12 is from aseptic section 7 of biliary stent 11 of the present invention to when having bacterium section 8 to pass through, seal wire 12 can directly push spheroid 3 open between two stretch cords 4, passes through check valve smoothly by between spheroid 3 and valve body 2 inwall with interior chamfering α; When seal wire 12 from biliary stent 11 of the present invention have bacterium section 8 to pass through to aseptic section 7 time, seal wire 12 extrudes spheroid 3 between spheroid 3 and valve body 2 inwall with interior chamfering α, under the effect of the counteracting force on the inclined-plane of interior chamfering α, spheroid 3 is convenient to leave by the port sealed along the inclined-plane of interior chamfering α opposite side to there being bacterium section 8 movement, and seal wire 12 passes through check valve smoothly.As can be seen here, this anti-biliary stent backflowed overcomes the defect that Authorization Notice No. exists for scheme described in the utility application of CN 203749989U.
Claims (5)
1. the anti-biliary stent backflowed, this drainage tube comprises conduction hose, described conduction hose is divided into has bacterium section in external section, in bile duct aseptic section and digestive tract, wherein, the tube wall of aseptic section is provided with conduction hole, have the tube wall of bacterium section to be provided with Medium Diffusion hole, aseptic section and described having between bacterium section are provided with check valve, it is characterized 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 being one of bacterium section to be provided with interior chamfering, one of two described stretch cords is fixed on described valve body relatively towards on the inwall of aseptic section, other end merges the same point being fixed on described spherome surface, is pulled to by spheroid in described interior chamfering all the time, makes a sealing of valve body; 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 characterized in that: described valve body is relatively provided with two sections of grooves on the inwall of aseptic section, one of two described stretch cords is separately fixed in described groove.
3. a kind of anti-biliary stent backflowed according to claim 2, is characterized in that: the surface of described spheroid is provided with a recess, and the other end merging of two described stretch cords is fixed in described recess.
4. a kind of anti-biliary stent backflowed according to claim 3, is characterized in that: described valve body is also provided with interior chamfering towards aseptic section one.
5. a kind of anti-biliary stent backflowed according to claim 4, is characterized 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 true CN104524683A (en) | 2015-04-22 |
| CN104524683B CN104524683B (en) | 2017-09-26 |
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Family Applications (1)
| 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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| CN (1) | CN104524683B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105266935A (en) * | 2015-11-23 | 2016-01-27 | 孙思予 | Backflow-preventing valve gastric-biliary anastomosis stent |
| CN105944194A (en) * | 2016-05-28 | 2016-09-21 | 庄华敏 | A nebulizer capable of preventing inverse flow of nebulization liquid |
Citations (5)
| 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 |
| US20030040736A1 (en) * | 1991-07-16 | 2003-02-27 | John H. Stevens | Endovacular cardiac venting catheter and method |
| 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 |
-
2015
- 2015-01-27 CN CN201510042322.7A patent/CN104524683B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030040736A1 (en) * | 1991-07-16 | 2003-02-27 | John H. Stevens | Endovacular cardiac venting catheter and method |
| 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 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105266935A (en) * | 2015-11-23 | 2016-01-27 | 孙思予 | Backflow-preventing valve gastric-biliary anastomosis stent |
| CN105266935B (en) * | 2015-11-23 | 2017-10-13 | 孙思予 | A kind of antireflux film omasum courage anastomosis bracket |
| CN105944194A (en) * | 2016-05-28 | 2016-09-21 | 庄华敏 | A nebulizer capable of preventing inverse flow of nebulization liquid |
| CN105944194B (en) * | 2016-05-28 | 2021-11-09 | 庄华敏 | Atomizer with prevent atomized liquid backward flow |
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| Publication number | Publication date |
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| CN104524683B (en) | 2017-09-26 |
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Granted publication date: 20170926 Termination date: 20220127 |