CN205163763U - Axial compressor blood vessel pump of no bearing of rotor magnetism liquid suspension - Google Patents
Axial compressor blood vessel pump of no bearing of rotor magnetism liquid suspension Download PDFInfo
- Publication number
- CN205163763U CN205163763U CN201520815821.0U CN201520815821U CN205163763U CN 205163763 U CN205163763 U CN 205163763U CN 201520815821 U CN201520815821 U CN 201520815821U CN 205163763 U CN205163763 U CN 205163763U
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- China
- Prior art keywords
- stator
- rotor
- blood vessel
- bore
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 210000004204 blood vessel Anatomy 0.000 title claims abstract description 38
- 239000006194 liquid suspension Substances 0.000 title claims abstract description 14
- 230000005389 magnetism Effects 0.000 title abstract 2
- 238000004804 winding Methods 0.000 claims abstract description 30
- 239000008280 blood Substances 0.000 claims abstract description 22
- 210000004369 blood Anatomy 0.000 claims abstract description 21
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 229910010293 ceramic material Inorganic materials 0.000 claims abstract description 8
- 230000000694 effects Effects 0.000 claims abstract description 7
- 238000005086 pumping Methods 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 5
- 238000007667 floating Methods 0.000 claims description 3
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 claims 1
- 238000010276 construction Methods 0.000 claims 1
- 210000005240 left ventricle Anatomy 0.000 abstract description 8
- 230000017531 blood circulation Effects 0.000 abstract description 3
- 230000036770 blood supply Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000000157 blood function Effects 0.000 abstract 1
- 230000002792 vascular Effects 0.000 abstract 1
- 208000007536 Thrombosis Diseases 0.000 description 3
- 210000000709 aorta Anatomy 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 206010019280 Heart failures Diseases 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000002473 artificial blood Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000023555 blood coagulation Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000004217 heart function Effects 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 210000003041 ligament Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 210000000115 thoracic cavity Anatomy 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- External Artificial Organs (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a technical field of improvement heart left ventricle blood supply ability, concretely relates to axial compressor blood vessel pump of no bearing of rotor magnetism liquid suspension. Technical scheme: the blood vessel pump includes stator, rotor and control system three, and the stator is the pipe shape, and including stator inner chamber pipe, stator winding and stator core etc. Stator inner chamber pipe adopts ceramic material, and the stator wire inserts control system, the rotor is the cylinder shape, has the spiral appearance and is equipped with the permanent magnet, the rotor is placed in the middle of the stator, has certain clearance between stator and the rotor, and the rotor can rotate around rotor axis. Beneficial effect: the axial positioning of rotor in the stator is realized to stator core's suction to the rotor permanent magnet, and the rotor rotates when carrying blood, utilizes liquid dynamic pressure buoyancy to realize the radical location of rotor in the stator, the cancellation bearing makes blood flow more smooth and easy, and stator inner chamber pipe adopts ceramic material to eliminate magnetic field eddy current effect, and vascular pump can replace heart left ventricle pump blood function completely.
Description
Technical field
This utility model relates to a kind of high reliability, long-life small-sized heart blood supply device, may also be referred to as " artificial heart ", when heart patient's cardiac function reduces, blood flow slows down, serious threat patients ' lives, can replace heart left ventricle's blood-pumping function, completely for blood flowing in the blood vessel provides power after this axial flow blood vessel pump implant into body aorta vessel, promote blood circulation, extend the life of Patients with Cardiac Failure.
Background technology
Technology developed countries and regions, if US and European is in order to improve the life quality of heart patient, extending life, has all carried out the research of " artificial heart " in the world at present, and existing several ten thousand examples were used successfully to the case of human body in recent years.China is nearly ten years also immediately following international trend, and Duo Jia unit has carried out the development of heart pump.Current heart pump mainly contains axial-flow type heart pump and centrifugal heart pump two kinds of forms, and existing axial-flow type heart pump generally adopts bearing to support rotor, and at bearing, place easily blood clotting occurs, form thrombosis, make heart pump fault rate higher, the life-span is short, poor reliability; In addition, the material of the bore of stator pipe that existing axial-flow type heart pump generally adopts metal material to pass through as blood as titanium alloy, in the alternating magnetic field that metal material rotates at axial-flow type heart pump rotor high-speed, eddy current effect is very strong, and motor power consumption is large, and stator local temperature is higher.And although the centrifugal heart pump had does not adopt bearing to support rotor, but owing to limiting by know-why, the profile of centrifugal heart pump is very large, generally be placed in thoracic cavity, first punch in heart left ventricle during use, centrifugal heart pump inlet tube inserts left ventricle, then with artificial blood vessel, heart pump outlet is communicated with the conveying carrying out blood with aorta, this on heart the injury of hole knockout to heart larger; The original blood supply passage of heart generally still needs retain and must use simultaneously, because if need not, just have flowing blood very slowly in this discarded passage, easily form thrombosis.Therefore, existing axial-flow type heart pump and centrifugal heart pump can only play the assosting effect of heart left ventricle, can not replace the blood-pumping function of heart left ventricle completely.
Summary of the invention
The purpose of this utility model is the shortcoming overcoming prior art, there is provided a kind of simple and compact for structure, long-life, the small-size shaft of the rotor magnetic liquid suspension bearing-free of high reliability is bled tube pump, in human implantable aorta vessel, bore of stator pipe adopts ceramic material, and this blood vessel pump can substitute the blood-pumping function of heart left ventricle completely.
The purpose of this utility model is achieved through the following technical solutions:
Axial flow blood vessel pump mainly comprises stator, rotor and control system three parts, wherein stator comprise stator casing, bore of stator pipe, stator core, stator winding, from stator winding draw wire, rotor comprises auger conveyor, crossed body and (4 pieces) permanent magnet.
Stator is a tubular, and rotor is a cylindrical shape concentric with stator, and rotor maximum outside diameter is less than the internal diameter of stator, and rotor is placed in the middle of stator, has certain gap between rotor and stator.Bore of stator pipe in stator module, stator winding, stator core are all round tube shapes; stator winding suit is fixed on the outer wall of bore of stator pipe; stator core suit is fixed on stator winding; stator casing is round tube shape equally; suit is fixed on the outer wall of bore of stator pipe; protect the stator module of its inside, pass stator casing from the wire of stator winding extraction and be connected with control system.
Auger conveyor in rotor has helical blade shape, blood one end from rotor can be carried to the other end when its rotor axis rotates, crossed body is cross shape body, the inside of protruding 4 the approximate cuboids of crossed body is cavity structures, cavity inside is equipped with 1 permanent magnet respectively, have 4 permanent magnets, the permanent magnet of rotor and the stator winding of stator constitute rotor field and the stator winding of permasyn morot.
The auger conveyor of described axial flow blood vessel pump rotor has helical blade contour structures, can axial pumping blood or liquid.
Described axial flow blood vessel pump rotor inside is provided with permanent magnet, permanent magnet is distributed in rotor cross-section circumferentially symmetrically, relative between two, axial flow blood vessel pump described in the utility model is the form of two pairs of permanent magnets, the stator winding of epitrochanterian permanent magnet and stator constitutes rotor field and the stator winding of permasyn morot, and axial flow blood vessel pump is in fact also a permasyn morot.
In described axial flow blood vessel pump stator, the internal diameter of bore of stator pipe is greater than the external diameter of rotor, and gap length between the two depends primarily on the working speed of the external diameter of rotor, the weight of rotor and rotor.
When described axial flow blood vessel pump rotor is placed in the middle of stator, the permanent magnet in rotor produces captivation to stator core, rotor is limited to the axial fixed position of bore of stator pipe.
After described axial flow blood vessel pump rotor is placed on stator centre, axial flow blood vessel pump is put in blood, when rotor rotor axis rotation work, blood fluid in rotor and bore of stator ligament can produce dynamic pressure liquid buoyancy to rotor, order about the axis of rotor and the dead in line of bore of stator pipe, can not produce both rotor and the gap of bore of stator pipe make and contact.
In described axial flow blood vessel pump stator, bore of stator pipe adopts ceramic material, and its high rigidity characteristic can ensure the working life that dynamic pressure liquid is floating, and its non-conductive characteristic eliminates magnetic field eddy current effect.
Effect of the present utility model is:
Rotor axial location is in the stator realized by the captivation of the permanent magnet in rotor to stator core, while rotor turns pumping blood, the dynamic pressure liquid buoyancy of liquid is utilized to realize rotor radial location in the stator, during axial flow blood vessel pump work, rotor does not contact completely with stator, and eliminate rotor bearing of the prior art, make blood under the conveying of rotor smoothly by bore of stator pipe, there is no the obstruction of bearing, reduce the formation of thrombosis, achieve long-life and high reliability.Bore of stator pipe adopts ceramic material, and its high rigidity characteristic can ensure the working life that dynamic pressure liquid is floating, and its non-conductive characteristic eliminates magnetic field eddy current effect, reduces motor power consumption.
Accompanying drawing explanation
Accompanying drawing is structural representation of the present utility model;
In figure, 1-stator; 2-stator casing; 3-bore of stator pipe; 4-stator core; 5-stator winding; 6-wire; 7-rotor; 8-auger conveyor; 9-crossed body; 10-permanent magnet; 11-permanent magnet; →-blood flow direction.
Detailed description of the invention
Below in conjunction with drawings and Examples, this utility model is further described.
This example provides a kind of axial flow blood vessel pump of rotor magnetic liquid suspension bearing-free, its structure comprises stator 1 and rotor 7, wherein stator 1 comprise stator casing 2, bore of stator pipe 3, stator core 4, stator winding 5, from stator winding 5 draw wire 6, rotor 7 comprises auger conveyor 8, crossed body 9, permanent magnet 10, permanent magnet 11 (permanent magnet totally 4, shape is identical with magnetic property).
Bore of stator pipe 3 in stator 1 is round tube shapes, and stator winding 5, stator core 4 are also all round tube shapes, and bore of stator pipe 3 adopts ceramic material; The outer wall that stator winding 5 is sleeved on bore of stator pipe 3 is fixed with glue behind location; Stator core 4 is sleeved on blend compounds on stator winding 5 and fixes; Stator casing 2 is round tube shape equally, forms by two sections, the outer wall being sleeved on bore of stator pipe 3 locates blend compounds and fixes; The wire 6 of drawing from stator winding 5 passes stator casing 2 access control system (not shown in FIG.), by the hole for injecting glue glue on stator casing 2, the space between stator casing 2 and bore of stator pipe 3 is all full of, the all component of stator 1 is all cemented, stator 1 is made to become a firm entirety, by wire 6 access control system.
Auger conveyor 8 in rotor 7 is spiral-shaped, and there is deflection cone shape its one end, and the other end has screwed hole on axis, blood one end from rotor can be carried to the other end when its rotor axis rotates.The cross section of crossed body 9 is cross shapes, it can be processed into by a cylinder crossed body that cross section is cross shape, the Cylinder outer circle surface of its cross part retains, this cylinder outside diameter is exactly the maximum outside diameter of rotor 7, the axis of its crossed body one end there is threaded rod, can be connected with auger conveyor 8 screwed hole, the other end has deflection cone shape, the outwardly directed part of crossed body is 4 approximate cuboids (lateral surface of approximate cuboid is one section of arc surface of former periphery), its inside is cavity structure, cavity has opening, inside can be equipped with 1 permanent magnet (installing 4 permanent magnets altogether) respectively, the stator winding 5 of the permanent magnet on rotor 7 and stator 1 constitutes rotor field and the stator winding of permasyn morot, axial flow blood vessel pump also becomes a permasyn morot.Respectively 4 cavitys are all blocked and firm welding with 4 plugs after installing 4 permanent magnets, cavity is all closed and does not stay gap.The rotor 7 installing permanent magnet is placed in stator 1 and makes it free location, achieve the axial location of rotor 7 in stator 1, this completes the assembling of axial flow blood vessel pump.
Axial flow blood vessel pump is put in blood, start control system and control rotor 7 rotor axis rotation work, blood is constantly carried from one end of axial flow blood vessel pump to the other end, rotor 7 and the blood fluid in bore of stator pipe 3 gap can produce radial dynamic pressure liquid buoyancy perpendicular to rotor axis to rotor 7, order about the axis of rotor 7 and the dead in line of bore of stator pipe 3, achieve the radial location of rotor 7 in stator 1, meanwhile, the radial dynamic pressure liquid buoyancy that blood fluid produces makes rotor 7 can not produce with bore of stator pipe 3 to contact.
Obviously, those skilled in the art can carry out various change and modification to this utility model and not depart from spirit and scope of the present utility model.If these amendments and modification belong within the scope of this utility model claim and equivalent technologies thereof, then this utility model is also intended to comprise these change and modification.
Claims (9)
1. the axial flow blood vessel pump of a rotor magnetic liquid suspension bearing-free, it is characterized in that: comprise stator (1), rotor (7) and control system three parts, wherein stator (1) comprises stator casing (2), bore of stator pipe (3), stator core (4), stator winding (5), the wire (6) of drawing from stator winding (5), and rotor (7) comprises auger conveyor (8), crossed body (9), permanent magnet 4 pieces, stator (1) is a tubular, rotor (7) is a cylindrical shape concentric with stator (1), rotor (7) maximum outside diameter is less than the internal diameter of stator (1), rotor (7) is placed in the middle of stator (1), certain gap is had between rotor (7) and stator (1), assembly bore of stator pipe (3) in stator (1), stator winding (5), stator core (4) is all round tube shape, bore of stator pipe (3) adopts ceramic material, stator winding (5) suit is fixed on the outer wall of bore of stator pipe (3), stator core (4) suit is fixed on stator winding (5), stator casing (2) is round tube shape equally, suit is fixed on the outer wall of bore of stator pipe (3), protect the stator module of its inside, the wire (6) of drawing from stator winding (5) passes stator casing (2) and is connected with control system, auger conveyor (8) in rotor (7) is helical blade shape, blood one end from rotor can be carried to the other end when its rotor axis rotates, crossed body (9) is cross shape body, the inside of protruding 4 the approximate cuboids of crossed body is cavity structures, cavity inside is equipped with 1 permanent magnet respectively, have 4 permanent magnets, the permanent magnet of rotor (7) and the stator winding (5) of stator (1) constitute rotor field and the stator winding of permasyn morot.
2. the axial flow blood vessel pump of a kind of rotor magnetic liquid suspension bearing-free as claimed in claim 1, is characterized in that: the auger conveyor (8) of rotor (7) has helical shape structure, can axial pumping blood or liquid.
3. the axial flow blood vessel pump of a kind of rotor magnetic liquid suspension bearing-free as claimed in claim 1, it is characterized in that: rotor (7) inside is provided with permanent magnet, constitute rotor field and the stator winding of permasyn morot with the stator winding (5) of stator (1), axial flow blood vessel pump is in fact also a permasyn morot.
4. the axial flow blood vessel pump of a kind of rotor magnetic liquid suspension bearing-free as claimed in claim 1, it is characterized in that: the internal diameter of stator (1) is greater than the external diameter of rotor (7), gap length between the two depends primarily on the working speed of the external diameter of rotor (7), the weight of rotor (7) and rotor (7).
5. the axial flow blood vessel pump of a kind of rotor magnetic liquid suspension bearing-free as claimed in claim 1, it is characterized in that: in stator (1), bore of stator pipe (3) adopts ceramic material, its high rigidity can ensure the working life that dynamic pressure liquid is floating, its non-conductive characteristic eliminates eddy current effect during machine operation, remarkable reduction motor power consumption, significantly reduces the temperature rise of blood vessel pump.
6. the axial flow blood vessel pump of a kind of rotor magnetic liquid suspension bearing-free as claimed in claim 1, it is characterized in that: when rotor (7) is placed in the middle of stator (1), permanent magnet in rotor (7) produces captivation to stator core (4), rotor (7) is limited to the fixed position that bore of stator pipe (3) is axial.
7. the axial flow blood vessel pump of a kind of rotor magnetic liquid suspension bearing-free as claimed in claim 1, it is characterized in that: after rotor (7) is placed on stator (1) centre, axial flow blood vessel pump is put in blood, when rotor (7) rotor axis rotation work, rotor (7) can produce dynamic pressure liquid buoyancy to rotor (7) with the blood fluid in bore of stator pipe (3) gap, order about the axis of rotor (7) and the dead in line of bore of stator pipe (3), rotor (7) floats over the centre of bore of stator pipe (3), realize the radial location of rotor (7) in the middle of bore of stator pipe (3), the dynamic pressure liquid buoyancy of blood fluid makes rotor (7) can not produce with bore of stator pipe (3) to contact.
8. the axial flow blood vessel pump of a kind of rotor magnetic liquid suspension bearing-free as claimed in claim 1, it is characterized in that: axial flow blood vessel pump only has stator (1) and rotor (7) two construction packages, and rotor (7) is without any bearing in kind.
9. the axial flow blood vessel pump of a kind of rotor magnetic liquid suspension bearing-free as claimed in claim 1, it is characterized in that: the bore of stator pipe (3) of axial flow blood vessel pump stator (1) is 1 hollow pipe, in the middle of pipe except having rotor (7), without any other object.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520815821.0U CN205163763U (en) | 2015-10-22 | 2015-10-22 | Axial compressor blood vessel pump of no bearing of rotor magnetism liquid suspension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520815821.0U CN205163763U (en) | 2015-10-22 | 2015-10-22 | Axial compressor blood vessel pump of no bearing of rotor magnetism liquid suspension |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205163763U true CN205163763U (en) | 2016-04-20 |
Family
ID=55727807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520815821.0U Expired - Fee Related CN205163763U (en) | 2015-10-22 | 2015-10-22 | Axial compressor blood vessel pump of no bearing of rotor magnetism liquid suspension |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205163763U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111420144A (en) * | 2020-04-10 | 2020-07-17 | 华侨大学 | Non-impeller rotor valveless pump for artificial heart |
| US10722631B2 (en) | 2018-02-01 | 2020-07-28 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of use and manufacture |
| CN111904439A (en) * | 2020-09-14 | 2020-11-10 | 浙江圣纳智能科技有限公司 | Blood coagulation preventing animal blood drawing bag |
| CN111971080A (en) * | 2018-03-23 | 2020-11-20 | 阿比奥梅德欧洲股份有限公司 | Intravascular blood pump with ceramic inner sleeve |
| US11185677B2 (en) | 2017-06-07 | 2021-11-30 | Shifamed Holdings, Llc | Intravascular fluid movement devices, systems, and methods of use |
| US11511103B2 (en) | 2017-11-13 | 2022-11-29 | Shifamed Holdings, Llc | Intravascular fluid movement devices, systems, and methods of use |
| US11654275B2 (en) | 2019-07-22 | 2023-05-23 | Shifamed Holdings, Llc | Intravascular blood pumps with struts and methods of use and manufacture |
| US11724089B2 (en) | 2019-09-25 | 2023-08-15 | Shifamed Holdings, Llc | Intravascular blood pump systems and methods of use and control thereof |
| US11964145B2 (en) | 2019-07-12 | 2024-04-23 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of manufacture and use |
-
2015
- 2015-10-22 CN CN201520815821.0U patent/CN205163763U/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11185677B2 (en) | 2017-06-07 | 2021-11-30 | Shifamed Holdings, Llc | Intravascular fluid movement devices, systems, and methods of use |
| US11717670B2 (en) | 2017-06-07 | 2023-08-08 | Shifamed Holdings, LLP | Intravascular fluid movement devices, systems, and methods of use |
| US11511103B2 (en) | 2017-11-13 | 2022-11-29 | Shifamed Holdings, Llc | Intravascular fluid movement devices, systems, and methods of use |
| US11229784B2 (en) | 2018-02-01 | 2022-01-25 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of use and manufacture |
| US10722631B2 (en) | 2018-02-01 | 2020-07-28 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of use and manufacture |
| JP2021519121A (en) * | 2018-03-23 | 2021-08-10 | アビオメド オイローパ ゲーエムベーハー | Intravascular blood pump with ceramic inner sleeve |
| CN111971080A (en) * | 2018-03-23 | 2020-11-20 | 阿比奥梅德欧洲股份有限公司 | Intravascular blood pump with ceramic inner sleeve |
| JP7386802B2 (en) | 2018-03-23 | 2023-11-27 | アビオメド オイローパ ゲーエムベーハー | Intravascular blood pump with ceramic inner sleeve |
| CN111971080B (en) * | 2018-03-23 | 2024-05-07 | 阿比奥梅德公司 | Intravascular blood pump with ceramic inner sleeve |
| US12017058B2 (en) | 2018-03-23 | 2024-06-25 | Abiomed Europe Gmbh | Intravascular blood pump with ceramic inner sleeve |
| US11964145B2 (en) | 2019-07-12 | 2024-04-23 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of manufacture and use |
| US11654275B2 (en) | 2019-07-22 | 2023-05-23 | Shifamed Holdings, Llc | Intravascular blood pumps with struts and methods of use and manufacture |
| US11724089B2 (en) | 2019-09-25 | 2023-08-15 | Shifamed Holdings, Llc | Intravascular blood pump systems and methods of use and control thereof |
| CN111420144A (en) * | 2020-04-10 | 2020-07-17 | 华侨大学 | Non-impeller rotor valveless pump for artificial heart |
| CN111904439A (en) * | 2020-09-14 | 2020-11-10 | 浙江圣纳智能科技有限公司 | Blood coagulation preventing animal blood drawing bag |
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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: 20160420 |