CN204815360U - Medical multifunctional connecting device - Google Patents
Medical multifunctional connecting device Download PDFInfo
- Publication number
- CN204815360U CN204815360U CN201520552218.8U CN201520552218U CN204815360U CN 204815360 U CN204815360 U CN 204815360U CN 201520552218 U CN201520552218 U CN 201520552218U CN 204815360 U CN204815360 U CN 204815360U
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- Prior art keywords
- side connection
- tube
- main body
- connection tube
- connecting device
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- Expired - Fee Related
Links
- 206010011409 Cross infection Diseases 0.000 abstract description 6
- 206010029803 Nosocomial infection Diseases 0.000 abstract description 6
- 238000011010 flushing procedure Methods 0.000 abstract description 5
- 238000009530 blood pressure measurement Methods 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 description 21
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 6
- 210000000683 abdominal cavity Anatomy 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000000474 nursing effect Effects 0.000 description 5
- 230000002411 adverse Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000284 resting effect Effects 0.000 description 4
- 210000002784 stomach Anatomy 0.000 description 3
- 206010048612 Hydrothorax Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000013010 irrigating solution Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000028327 secretion Effects 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000002485 urinary effect Effects 0.000 description 2
- 0 CCCCCC(*)(*C)S(CCNCCCNCCCI*IC******C[I+])ICCI Chemical compound CCCCCC(*)(*C)S(CCNCCCNCCCI*IC******C[I+])ICCI 0.000 description 1
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
Landscapes
- External Artificial Organs (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to the field of medical auxiliary instruments, in particular to a medical multifunctional connecting device, which comprises a main body pipe, wherein a first main pipe connecting port and a second main pipe connecting port are respectively arranged at the two ends of the main body pipe; the first main pipe connecting port is matched with the medical rubber pipe joint, and the second main pipe connecting port is matched with the medical drainage bag joint. The medical multifunctional connecting device can realize the quick and effective connection of two or more than two pipeline joints, solve the problems of flushing, drainage, pressure measurement, feeding and the like in clinic, and realize the switching of pipeline channels by adjusting the three-way valve core; the connector of the device is suitable for various common connectors in clinic, can realize quick connection, can ensure effectiveness and tightness, can reduce pipeline pollution and reduce nosocomial infection of patients.
Description
Technical field
This utility model relates to a kind of medical aid tool, particularly a kind of medical multifunctional connecting device.
Background technology
In clinical treatment nursing, various liquid-transport pipe-line, Micropump pipeline can be used, and in order to meet some special transfusions require time, developed medical three-way valve, it is made up of tee T, clapper and elasticity plug, uses three-way valve joint to have advantage that is simple to operate, use safety, without Drug leakage, hands-off operation and pollute few, therefore three-way valve is also widely used in medical field, is mainly used in associative operation of infusing.But as operations such as pressure measurement, drain, flushing and nursings in clinical care, need the connecting device simultaneously meeting several linkage function, but existing connecting device has the following disadvantages:
1, existing three-way valve and connecting device, due to the limitation of its interface quantity and interface shape, multi-pipeline connected sum handover operation simultaneously can not be realized, during multi-pipeline attended operation, first can only remove the connection of some adapter,, also there is the possibility polluting pipeline in such complex operation;
2, on the other hand, to increase work efficiency in medical procedure, ensure quality of connection, various pipeline, joint and connecting device need to be connected fast and effectively, so be necessary to design accordingly the interface of connecting device, as shown in Figure 1, the end rubber fittings 101 of medical rubber hose 1, effectively to be connected with rubber fittings, with regard to needing, special process be done to the interface of connecting device, to reach the work efficiency improving medical worker, reduce the effect of workload, and the probability disconnected when reducing pipeline work, reduce pipeline infect and reduce patient nosocomial infection.
Utility model content
The purpose of this utility model is: connection and the passage bridge that can not meet various medical treatment and nursing pipeline for medical three-way valve of the prior art and other connecting devices simultaneously, and the problem of the sealing property after joint connection can not be ensured, spy provides a kind of medical multifunctional connecting device that can match with clinical various Common linkers, this device can realize a kind of, two kinds be connected fast with while multiple pipeline, be communicated with as required by each interface, good seal performance, can reduce pipeline pollute, reduce nosocomial infection.
To achieve these goals, the technical solution adopted in the utility model is:
A kind of medical multifunctional connecting device, comprise main body tube, described main body tube two ends are respectively first supervisor's connector and second supervisor's connector, described main body tube is arranged at least two side connection tubes, described side connection tube and main body tube junction are provided with three-way valve core, the break-make of realization body pipe and side connection tube; Described first supervisor's connector is the structure adapted with medical grade rubber pipe joint, and second supervisor's connector is the structure matched with medical drainage bag joint.
This medical multifunctional connecting device, by least two the side connection tubes arranged on main body tube, the three-way valve core coordinating side connection tube and main body tube junction to arrange, can realize two or more pipeline and connect; According to actual needs, by the direction of regulating three-way valve, be communicated with the adapter needed, realize pipe passage and switch; First supervisor's connector is set to the structure adapted with medical grade rubber pipe joint, second supervisor is the structure matched with medical drainage bag joint, and other pipe joints are identical with existing three-way valve pipe joint, the connector of this device is adapted to various Common linkers clinically, can realize connecting fast, and validity and sealing can be ensured, pipeline can be reduced and pollute, reduce patient nosocomial infection.
As preferred version of the present utility model, described first supervisor's connector is the tapered tube configuration adapted with medical grade rubber pipe joint, and described tapered tube configuration outer surface is provided with multi-ring annular groove.The first supervisor's connector being designed to tapered tube configuration matches with medical rubber hose, and is provided with multi-ring annular groove on tapered tube configuration outer surface, is conducive to the quick connection of two pipes, and ensures good sealing property, reduce pipeline and pollute.
As preferred version of the present utility model, described main body tube is provided with two side connection tubes, is respectively the first side connection tube and the second side connection tube.
As preferred version of the present utility model, described first side connection tube is taken over identical with the structure of the second side connection tube with plain triple valve, and one of them side connection tube end is with at least one circle external screw thread, and opposite side connection tube is light pipe.Connection tube end, side, with external screw thread, makes it can close with sealing cap when resting state, the screw-internal thread fit of external screw thread and sealing cap, makes sealing cap not easily because overpressure comes off, and reduces the contaminated possibility of side connection tube.
As preferred version of the present utility model, for the body of light pipe is provided with locking cap in described first side connection tube and the second side connection tube, described locking cap has female thread.Tapped locking cap is conducive to side connection tube and connects with corresponding pipe fitting, and locking cap can make two pipes be connected firmly, and avoids pipeline to throw off the adverse effect caused.
As preferred version of the present utility model, described first side connection tube and the second side connection tube are arranged on the both sides of main body tube.The the first side connection tube and the second side connection tube that are separately positioned on main body tube both sides are conducive to balancing this connecting device, and when the cut-in operation simultaneously of both sides connection tube, mutual pipeline can not be disturbed.
As preferred version of the present utility model, described main body tube is in charge of by two sections and is detachably formed by connecting, and its junction is between the first side connection tube and the second side connection tube; Two sections to be in charge of by locking cap and to be formed by connecting by described main body tube, and two sections of connecting end portion be in charge of and locking cap structure adapt.
As preferred version of the present utility model, described three-way valve core is provided with pole changer, and described pole changer is three-way valve universal switch, and is arranged on the homonymy of main body tube.Be arranged on the pole changer of main body tube homonymy, convenient operation.
In sum, owing to have employed technique scheme, the beneficial effects of the utility model are:
1, this medical multifunctional connecting device, by least two the side connection tubes arranged on main body tube, the three-way valve core coordinating side connection tube and main body tube junction to arrange, can realize two or more pipeline and connect; According to actual needs, by the direction of regulating three-way valve, be communicated with the adapter needed, realize pipe passage and switch, solve the problem of the operations such as flushing clinically, drain, pressure measurement and nursing; First supervisor's connector is set to the structure adapted with medical grade rubber pipe joint, second supervisor is the structure matched with medical drainage bag joint, and other pipe joints are identical with existing three-way valve pipe joint, the connector of this device is adapted to various Common linkers clinically, can realize connecting fast, and validity and sealing can be ensured, pipeline can be reduced and pollute, reduce patient nosocomial infection;
2, the first side connection tube and the second side connection tube that are separately positioned on main body tube both sides are conducive to balancing this connecting device, do not interfere with each other, be arranged on the pole changer of main body tube homonymy, convenient operation when the cut-in operation simultaneously of both sides connection tube;
3, main body tube is designed to connect two sections by locking cap be in charge of and form, facilitate the relative position of adjustment first side connection tube and the second side connection tube, locking cap is adjusted loose rotating main body pipe, the situation that the convenient conduit positions be connected with the second side connection tube with the first side connection tube is comparatively near or angle is less, simple and practical.
Accompanying drawing explanation
Fig. 1 is the structural representation of medical rubber hose in prior art.
Fig. 2 is the structural representation of the medical multifunctional connecting device of embodiment 1.
Fig. 3 is the structural representation of the medical multifunctional connecting device of embodiment 2.
Labelling in figure: 1-medical rubber hose, 101-rubber fittings, 2-main body tube, 3-first is responsible for connector, 4-first side connection tube, 5-three-way valve core, and 6-second is responsible for connector, 7-second side connection tube, 8-locking cap.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain this utility model, and be not used in restriction this utility model.
embodiment 1
The medical multifunctional connecting device of the present embodiment is used for the measurement of bladder pressure, needs first empty bladder, then pours the normal saline of 50-100ml to bladder, and then utilize pressure transducer to measure bladder pressure, finally saline and urine are poured in drain again.As shown in Figure 2, in the present embodiment, two side connection tubes are set on main body tube 2, this connecting device comprises main body tube 2, described main body tube 2 two ends are respectively the first supervisor's connector 3 and second supervisor's connector 6, described main body tube 2 is provided with two side connection tubes, be respectively the first side connection tube 4 and the second side connection tube 7, described side connection tube and main body tube junction are provided with three-way valve core 5, the break-make of realization body pipe and side connection tube; Described first supervisor's connector 3 is the structure matched with medical grade rubber pipe joint, and second supervisor's connector 6 is the structure matched with medical drainage bag joint.
In the present embodiment, first supervisor's connector 3 is utilized to be connected with urinary catheter end, second supervisor's connector 6 is connected with drainage bag interface, first side connection tube 4 connects pressure measurement and flushing line, realize being communicated with as required by three-way valve core 5, complete empty bladder, pour to bladder the operating process of normal saline, cystometry and empty bladder again; Only need adjust the position of three-way valve core 5 when operating, ending into each operating procedure without the need to taking off associated adapter, can effectively avoid pipeline to pollute, prevent nosocomial infection.
This medical multifunctional connecting device, by two the side connection tubes arranged on main body tube, the three-way valve core coordinating side connection tube and main body tube junction to arrange, can realize effective connection when bladder pressure is measured between each pipeline and Channel-shifted; Each connector is all clinical common interfaces, can well coincide, and can not only realize fast connecting, and can also ensure sealing property.
In the present embodiment, described first supervisor's connector 3 is the tapered tube configuration matched with medical grade rubber pipe joint, and described tapered tube configuration outer surface is provided with multi-ring annular groove.The structure of the first supervisor's connector and urinary catheter end that are designed to tapered tube configuration matches, and is provided with multi-ring annular groove on tapered tube configuration outer surface, is conducive to the quick connection of two pipes, and ensures to connect rear good sealing property, reduces pipeline and pollutes.
In the present embodiment, described first side connection tube 4 is taken over identical with the structure of the second side connection tube 7 with plain triple valve, and the first side connection tube 4 end is with at least one circle external screw thread, and the second side connection tube 7 is light pipe.First side connection tube 4 end, with external screw thread, makes it can close with sealing cap when resting state, the screw-internal thread fit of external screw thread and sealing cap, makes sealing cap not easily because overpressure comes off, and reduces the contaminated possibility of side connection tube.
The body of the second side connection tube 7 is provided with locking cap 8, and described locking cap 8 has female thread.This locking cap is structure conventional in existing three-way valve, and side connection tube can connect with corresponding pipe fitting by tapped locking cap fast, and locking cap can make two pipes be connected firmly, and avoids pipeline to throw off the adverse effect caused.
In the present embodiment, described first side connection tube 4 and the second side connection tube 7 are separately positioned on the both sides of main body tube 2.The the first side connection tube and the second side connection tube that are separately positioned on main body tube both sides are conducive to balancing this connecting device, and when the cut-in operation simultaneously of both sides connection tube, mutual pipeline can not be disturbed.
In the present embodiment, described three-way valve core 5 is provided with pole changer, and described pole changer is three-way valve universal switch, and is arranged on the homonymy of main body tube.Be arranged on the pole changer of main body tube homonymy, be convenient to the break-make opening and cut off side connection tube and main body tube.
embodiment 2
The medical multifunctional connecting device of the present embodiment is used for the drain of hydrothorax and the nursing through stomach tube.As shown in Figure 3, the medical multifunctional connecting device of the present embodiment comprises main body tube 2, described main body tube 2 two ends are respectively the first supervisor's connector 3 and second supervisor's connector 6, described main body tube 2 is provided with two side connection tubes, be respectively the first side connection tube 4 and the second side connection tube 7, described side connection tube and main body tube junction are provided with three-way valve core 5, the break-make of realization body pipe and side connection tube; Described first supervisor's connector 3 is the structure matched with medical grade rubber pipe joint, and second supervisor's connector 6 is the structure matched with medical drainage bag joint.In the present embodiment, two sections to be in charge of by locking cap 8 and to be formed by connecting by described main body tube 2, and as shown in Figure 3, described locking cap 8 is between the first side connection tube 3 and the second side connection tube 7.
In the present embodiment, by being divided into two after main body tube 2 splits, the first half is used as to feed, and wherein first supervisor's connector 3 connects stomach tube, and the first side connection tube 4 connects infusion pipeline and feeds sucrose solution, saline etc., and the interface disconnected in the middle part of main body tube also can be fed temporarily; Main body tube the latter half is used for drain hydrothorax, is connected by the second side connection tube 7 with drainage tube (the beneficial heart reaches CVC puncture tube), and second supervisor's connector 6 is connected with drainage bag, realizes being communicated with by the steering handle of three-way valve core 5.
The main adapter of this device specifically arranges as follows:
In the present embodiment, described first supervisor's connector 3 is the tapered tube configuration matched with medical grade rubber pipe joint, and described tapered tube configuration outer surface is provided with multi-ring annular groove.The first supervisor's connector and the stomach tube end construction that are designed to tapered tube configuration match, and are provided with multi-ring annular groove on tapered tube configuration outer surface, are conducive to the quick connection of two pipes, stable connection, and ensure good sealing property, reduce pipeline and pollute.
In the present embodiment, described first side connection tube 4 is taken over identical with the structure of the second side connection tube 7 with plain triple valve, and the first side connection tube 4 end is with at least one circle external screw thread, and the second side connection tube 7 is light pipe.First side connection tube 4 end, with external screw thread, makes it can close with sealing cap when resting state, the screw-internal thread fit of external screw thread and sealing cap, makes sealing cap not easily because overpressure comes off, and reduces the contaminated possibility of side connection tube.
The body of the second side connection tube 7 is provided with locking cap 8, and described locking cap 8 has female thread.This locking cap is structure conventional in existing three-way valve, and side connection tube can connect with corresponding pipe fitting by tapped locking cap fast, and locking cap can make two pipes be connected firmly, and avoids pipeline to throw off the adverse effect caused.
embodiment 3
The medical multifunctional connecting device of the present embodiment is used for peritoneal lavage drain, and this action need first pours into normal saline to abdominal cavity, then drain irrigating solution and abdominal cavity secretions.As shown in Figure 2, the medical multifunctional connecting device of the present embodiment comprises main body tube 2, described main body tube 2 two ends are respectively the first supervisor's connector 3 and second supervisor's connector 6, described main body tube 2 is provided with two side connection tubes, be respectively the first side connection tube 4 and the second side connection tube 7, described side connection tube and main body tube junction are provided with three-way valve core 5, the break-make of realization body pipe and side connection tube; Described first supervisor's connector 3 is the structure adapted with medical grade rubber pipe joint, and second supervisor's connector 6 is the structure matched with medical drainage bag joint.
In the present embodiment, described first side connection tube 4 is taken over identical with the structure of the second side connection tube 7 with plain triple valve, and the first side connection tube 4 end is with at least one circle external screw thread, and the second side connection tube 7 is light pipe.First side connection tube 4 end, with external screw thread, makes it can close with sealing cap when resting state, the screw-internal thread fit of external screw thread and sealing cap, makes sealing cap not easily because overpressure comes off, and reduces the contaminated possibility of side connection tube.
The body of the second side connection tube 7 is provided with locking cap 8, and described locking cap 8 has female thread.This locking cap is structure conventional in existing three-way valve, and side connection tube can connect with corresponding pipe fitting by tapped locking cap fast, and locking cap can make two pipes be connected firmly, and avoids pipeline to throw off the adverse effect caused.
In the present embodiment, the second side connection tube 7 is put pipe with abdominal cavity and is connected, the first side connection tube 4 is connected with flushing line, and second supervisor's connector 6 is connected with drainage bag, realizes being communicated with by three-way valve core 5.Second side connection tube 7 can be put to manage with abdominal cavity by the locking cap 8 that its end is arranged and be connected fast, and guarantee sealing, and second supervisor's connector 6 matches with drainage bag interface, connect closely reliable, when pouring into normal saline to abdominal cavity, the steering handle of swivel tee spool 5, realizes the first side connection tube 4, main body tube 2 is communicated with the second side connection tube 7; When drain irrigating solution and abdominal cavity secretions, the steering handle of swivel tee spool 5, realizes the second side connection tube 7 and is communicated with second supervisor's connector 6, be drained in drainage bag.
In addition, in the present embodiment, described first supervisor's connector 3 is the tapered tube configuration matched with medical grade rubber pipe joint, and described tapered tube configuration outer surface is provided with multi-ring annular groove.The first supervisor's connector and the medical rubber hose that are designed to tapered tube configuration match, and are provided with multi-ring annular groove on tapered tube configuration outer surface, are conducive to the quick connection of two pipes, and ensure good sealing property, reduce pipeline and pollute.
The foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. a medical multifunctional connecting device, comprise main body tube, described main body tube two ends are respectively first supervisor's connector and second supervisor's connector, it is characterized in that, described main body tube is arranged at least two side connection tubes, described side connection tube and main body tube junction are provided with three-way valve core, the break-make of realization body pipe and side connection tube; Described first supervisor connector and medical grade rubber pipe joint is suitable, second be responsible for connector and medical drainage bag joint suitable.
2. medical multifunctional connecting device according to claim 1, is characterized in that, described first supervisor's connector is the tapered tube configuration adapted with medical grade rubber pipe joint, and described tapered tube configuration outer surface is provided with multi-ring annular groove.
3. medical multifunctional connecting device according to claim 1, is characterized in that, described main body tube is provided with two side connection tubes, is respectively the first side connection tube and the second side connection tube.
4. medical multifunctional connecting device according to claim 3, is characterized in that, in described first side connection tube and the second side connection tube, the pipe end of one is with at least one circle external screw thread, and another pipe is light pipe.
5. medical multifunctional connecting device according to claim 4, is characterized in that, for the body of light pipe is provided with locking cap in described first side connection tube and the second side connection tube, described locking cap has female thread.
6. medical multifunctional connecting device according to claim 5, is characterized in that, described first side connection tube and the second side connection tube are arranged on the both sides of main body tube.
7. according to the medical multifunctional connecting device one of claim 1-6 Suo Shu, it is characterized in that, described main body tube is in charge of by two sections and is detachably formed by connecting, and its junction is between the first side connection tube and the second side connection tube.
8. medical multifunctional connecting device according to claim 7, is characterized in that, two sections to be in charge of by locking cap and to be formed by connecting by described main body tube, and two sections of connecting end portion be in charge of and locking cap structure adapt.
9. medical multifunctional connecting device according to claim 1, is characterized in that, described three-way valve core is provided with pole changer, and described pole changer is three-way valve universal switch.
10. medical multifunctional connecting device according to claim 9, is characterized in that, described pole changer is arranged on the homonymy of main body tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520552218.8U CN204815360U (en) | 2015-07-28 | 2015-07-28 | Medical multifunctional connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520552218.8U CN204815360U (en) | 2015-07-28 | 2015-07-28 | Medical multifunctional connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204815360U true CN204815360U (en) | 2015-12-02 |
Family
ID=54673006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520552218.8U Expired - Fee Related CN204815360U (en) | 2015-07-28 | 2015-07-28 | Medical multifunctional connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204815360U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107802906A (en) * | 2017-11-21 | 2018-03-16 | 四川大学华西医院 | Blood purification system |
| WO2019041727A1 (en) * | 2017-08-28 | 2019-03-07 | 深圳市前海未来无限投资管理有限公司 | Sucking-discharging drainage control pipe and sucking-discharging cleaning instrument |
-
2015
- 2015-07-28 CN CN201520552218.8U patent/CN204815360U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019041727A1 (en) * | 2017-08-28 | 2019-03-07 | 深圳市前海未来无限投资管理有限公司 | Sucking-discharging drainage control pipe and sucking-discharging cleaning instrument |
| CN107802906A (en) * | 2017-11-21 | 2018-03-16 | 四川大学华西医院 | Blood purification system |
| CN107802906B (en) * | 2017-11-21 | 2023-09-22 | 四川大学华西医院 | Blood purifying system |
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| 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: 20151202 |
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| CF01 | Termination of patent right due to non-payment of annual fee |