CN102091381A - Electromagnetic valve for blood purification - Google Patents

Electromagnetic valve for blood purification Download PDF

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Publication number
CN102091381A
CN102091381A CN 201110002786 CN201110002786A CN102091381A CN 102091381 A CN102091381 A CN 102091381A CN 201110002786 CN201110002786 CN 201110002786 CN 201110002786 A CN201110002786 A CN 201110002786A CN 102091381 A CN102091381 A CN 102091381A
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CN
China
Prior art keywords
iron core
valve body
blood purification
slip iron
electromagnetic valve
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.)
Granted
Application number
CN 201110002786
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Chinese (zh)
Other versions
CN102091381B (en
Inventor
高光勇
甘华
滕朝宇
刘智勇
任应祥
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SWS HEMODIALSIS CARE CO., LTD.
Original Assignee
Chongqing Shanwaishan Science & Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chongqing Shanwaishan Science & Technology Co Ltd filed Critical Chongqing Shanwaishan Science & Technology Co Ltd
Priority to CN 201110002786 priority Critical patent/CN102091381B/en
Priority to PCT/CN2011/074499 priority patent/WO2012092744A1/en
Publication of CN102091381A publication Critical patent/CN102091381A/en
Application granted granted Critical
Publication of CN102091381B publication Critical patent/CN102091381B/en
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/22Valves or arrangement of valves
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/22Valves or arrangement of valves
    • A61M2039/226Spindles or actuating means
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/22Valves or arrangement of valves
    • A61M39/24Check- or non-return valves
    • A61M2039/2473Valve comprising a non-deformable, movable element, e.g. ball-valve, valve with movable stopper or reciprocating element
    • A61M2039/2486Guided stem, e.g. reciprocating stopper
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/02General characteristics of the apparatus characterised by a particular materials
    • A61M2205/025Materials providing resistance against corrosion
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/82Internal energy supply devices
    • A61M2205/8275Mechanical
    • A61M2205/8287Mechanical operated by an external magnetic or electromagnetic field

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  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

The invention discloses an electromagnetic valve for blood purification. The bottom of the inner cavity of a valve body is provided with an annular boss; a seal gasket for sealing the central hole of the annular boss is positioned in the inner cavity of the valve body; the inner cavity of the valve body is provided with an elastic isolating piece, the upper end of the isolating piece is compressed tightly and fixed by a coil body, and the lower end of the isolating piece is fixedly connected with the seal gasket; the lower end of a slide iron core extends into an isolating body and is fixedly connected with the isolating body; and the inner hole at the upper end of the slide iron core is internally provided with a spring, and the upper end of the spring is connected with the coil body in a propping manner. The electromagnetic valve for blood purification provided by the invention has the advantages of good biology performance and high corrosion resistance, and can not rust, can not cause medium pollution, and can not be aged even if liquids with high corrosivity such as a disinfectant, acid liquor and the like are used; and the actions of the slide iron core are flexible and reliable, and the noise of the electromagnetic valve is lower during starting and closing.

Description

A kind of blood purification electromagnetic valve
Technical field
The invention belongs to the electromagnetic valve technical field, specifically, particularly blood purification electromagnetic valve.
Background technology
Electromagnetic valve is the vitals that uses on the blood cleaning equipment, is mainly used in the conducting or the disconnection of control piper.Electromagnetic valve commonly used is made of parts such as valve body, coil case, slip iron core and sealing gaskets, and existing deficiency is:
1, valve body is made by metal material, get rusty easily, and easy precipitating metal ion and cause medical fluid to pollute.
2, isolate between body cavity and the coil case endoporus, liquid easily enters valve inner, cause spring, slip iron core to get rusty, and the easy contaminated liquids of metal parts such as spring, slip iron core, and have the spring of coil inside, the situation that the slip iron core is difficult for cleaning and sterilizing, be not suitable for the environment that the medical fluid cleannes are had relatively high expectations.
3, the slip iron core directly contacts with coil bottom when work, has strengthened electromagnetic valve unlatching, the noise when closing.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of can prevent effectively that the sliding stop iron core gets rusty, also reduces the blood purification electromagnetic valve that opens and closes noise.
Technical scheme of the present invention is as follows: a kind of blood purification electromagnetic valve, at valve body (1) upper fixed line circle body (2), slip iron core (3) is housed in this coil case (2), described valve body (1) carries first joint (5) and second joint (6), its key is: the centre bore of first joint (5) is communicated with the inner chamber (1a) of valve body (1), be provided with annular boss (1b) in the bottom of valve body (1) inner chamber (1a), the centre bore of this annular boss (1b) is communicated with the centre bore of second joint (6), the sealing gasket (4) that is used for shutoff annular boss (1b) centre bore is positioned at the inner chamber (1a) of valve body (1), in the inner chamber (1a) of described valve body (1), be provided with telescopic separator, the upper end of this separator is fixed by coil case (2), fixedlys connected with sealing gasket (4) in the lower end of separator; The lower end of described slip iron core (3) is stretched in the separator, and fixedlys connected with separator, in the endoporus of slip iron core (3) upper end spring (7) is housed, and upper end of this spring (7) and coil case (2) connect.
Adopt above technical scheme, when the lead of coil case is not switched on, spring applies downward pressure to the slip iron core all the time, make the lower end of slip iron core drive the separator elongation, and separator drives the end face that sealing gasket is pushed down the body cavity annular boss, with the centre bore shutoff of annular boss, the centre bore of first joint and the centre bore of second joint is isolated fully, can not ventilate body or logical liquid, thus realized closing of valve body; When the lead of coil case is switched on, the electromagnetic force that coil produces moves up after making the slip iron core overcome the elastic force of spring, spring further compresses, separator is in compressive state under the drive of slip iron core, separator drives sealing gasket and also moves up, make the end face of sealing gasket and body cavity annular boss produce certain distance, this moment, the centre bore of first joint communicated with the centre bore of second joint, had realized the unlatching of valve body.
This shows that the present invention isolates medium and slip iron core, the spring of valve inner fully by separator, prevented that effectively slip iron core, spring from getting rusty because of corrosion, avoided medium contaminated simultaneously.When the slip iron core moves up and down, drive the separator synchronization telescope, can not produce fretting wear between slip iron core and the separator, prevent slider break leak in, electromagnetic valve opens, cuts out more flexible, reliable.
Described separator is made of locating pad (8), corrugated tube (9) and positioning seat (10), wherein locating pad (8) is fixed by coil case (2), the middle part of this locating pad (8) bottom surface links to each other with the upper end of positioning seat (10) by corrugated tube (9), and positioning seat (10) fixes with sealing gasket (4); The centre bore of locating pad (8) and corrugated tube (9) is passed in the lower end of described slip iron core (3), and fixedlys connected with positioning seat (10).Above Mechanical Builds is simple, processing and fabricating and assembling easily, and corrugated tube is flexible reliable, move up to ten millionly inferiorly also can not break down long service life.
Described locating pad (8), corrugated tube (9) and positioning seat (10) are made by polytetrafluoroethylmaterial material, and corrosion resistance is strong, even use the bigger liquid of corrosivity such as disinfectant solution, acid solution also can not occur wearing out.
The lower end of described positioning seat (10) embeds in the sealing gasket (4), both tight fits.It is firm to be connected between positioning seat and the sealing gasket, can not take place loosening or comes off, and the synchronicity of motion is good.
For the ease of assembling, strengthen the fastness that connects, the lower end of described slip iron core (3) is stretched in the positioning seat (10), both threaded engagement.
Between described valve body (1) and locating pad (8), be provided with sealing ring (11).Sealing ring is isolated valve body upper port and outside fully, guarantees that body cavity does not leak under certain pressure yet.Valve body is being opened, is being closed in the closed procedure, and corrugated tube moves up and down, and locating pad is not subjected to displacement, so also can not destroy locating pad and outside sealing state.
In order to make slip iron core flexible movements, reliable, in described coil case (2), be embedded with sliding ring (12), slip iron core (3) is installed in this sliding ring (12), be slidingly matched between described slip iron core (3) and the sliding ring (12).
Be provided with rubber ring (13) between the top of described slip iron core (3) and coil case (2), the part circle body of this rubber ring (13) embeds in the slip iron core (3).Rubber encloses cushioning effect, makes slip iron core noise in course of action less, is specially adapted to medical apparatus and instruments such as haemodialysis control unit.
Described valve body (1), first joint (5) and second joint (6) are the integrative-structure by injection mo(u)lding, and processing and fabricating is easy like this, and cost is lower, and biology performance is good, can not get rusty.
The invention has the beneficial effects as follows:
1, the parts that contact with medium can adopt medical grade rubber or plastic production, and biology performance is good, can not get rusty, and can not cause medium pollution.
2, adopt the stronger plastic material of corrosion resistance to isolate between body cavity and the coil case endoporus, even use the bigger liquid of corrosivity such as disinfectant solution, acid solution also can not occur wearing out; Simultaneously prevented that effectively slip iron core, spring from getting rusty because of corrosion, avoided medium contaminated.
3, electromagnetic valve open, corrugated tube synchronization telescope when closing, move and up to ten millionly inferiorly also can not break down long service life.
4, good airproof performance, slip iron core flexible movements, reliable, electromagnetic valve is opened, noise is all less when closing.
Description of drawings
Fig. 1 is a structural representation of the present invention.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples:
As shown in Figure 1, the present invention is made of parts such as valve body 1, coil case 2, slip iron core 3, sealing gasket 4, first joint 5, second joint 6, separator, sealing ring 11, sliding ring 12 and rubber rings 13, and wherein valve body 1, first joint 5 and second joint 6 are by rubber or the plastics integrative-structure by injection mo(u)lding.Described valve body 1 has the open inner chamber 1a in upper end, and the centre bore of first joint 5 is communicated with the bottom of valve body 1 inner chamber 1a by the first endoporus 1c.Central authorities in valve body 1 inner chamber 1a bottom are formed with annular boss 1b, and the centre bore of this annular boss 1b is communicated with the centre bore of second joint 6 by the second endoporus 1d.
As can be known from Fig. 1, coil case 2 is positioned at the top of valve body 1, and fixedlys connected with valve body 1 by bolt or other mode that is equal to, and carries the lead 14 that connects power supply on the coil case 2.Have on described coil case 2 that the lower end is uncovered, the endoporus of upper end closed, this endoporus is over against the inner chamber 1a of valve body 1, and fixedly is embedded with sliding ring 12 in this endoporus, and slip iron core 3 is installed in the sliding ring 12, is slidingly matched between slip iron core 3 and the sliding ring 12.Have the installation endoporus in the upper end of described slip iron core 3, in this installation endoporus spring 7 is housed, the inner roof wall of the upper end of spring 7 and coil case 2 endoporus connects, and the lower end of spring 7 and slip iron core 3 are installed the interior diapire butt of endoporus.Be provided with rubber ring 13 between the inner roof wall of the top of described slip iron core 3 and coil case 2 endoporus, the part circle body of this rubber ring 13 embeds in the slip iron core 3.
From Fig. 1, open as can be known, in the inner chamber 1a of valve body 1, be provided with telescopic separator, this separator is made of locating pad 8, corrugated tube 9 and positioning seat 10, and locating pad 8, corrugated tube 9 and positioning seat 10 are made by the strong plastic material of corrosion resistance, preferably polytetrafluoroethylene material in the present embodiment.Described locating pad 8 is fixed on the step of body cavity 1a upper port by coil case 2, is provided with sealing ring 11 between valve body 1 and locating pad 8, and sealing ring 11 is positioned at the below of locating pad 8.The middle part of described locating pad 8 bottom surfaces links to each other with the upper end of positioning seat 10 by corrugated tube 9, and the lower end of positioning seat 10 embeds in the sealing gasket 4, both tight fits.Described sealing gasket 4 be positioned at annular boss 1b directly over, be used for the centre bore of shutoff annular boss 1b.The centre bore of locating pad 8 and corrugated tube 9 is passed in the lower end of described slip iron core 3, and stretches in the positioning seat 10, passes through threaded engagement between slip iron core 3 and the positioning seat 10.
Operation principle of the present invention is as follows:
When lead 14 is not switched on, spring 7 applies downward pressure to slip iron core 3 all the time, make the lower end of slip iron core 3 drive corrugated tube 9 elongations, and positioning seat 10 drives the end face that sealing gasket 4 is pushed down valve body 1 inner chamber annular boss 1b, centre bore shutoff with annular boss 1b, the centre bore of first joint 5 and the centre bore of second joint 6 are isolated fully, can not ventilate body or logical liquid, thus realized closing of valve body; When lead 14 energisings, the electromagnetic force that coil produces moves up after making slip iron core 3 overcome the elastic force of spring 7, spring 7 further compresses, corrugated tube 9 is in compressive state under the drive of slip iron core 3, positioning seat 10 drives sealing gasket 4 and also moves up, make sealing gasket 4 and the end face of valve body 1 inner chamber annular boss 1b produce certain distance, this moment, the centre bore of first joint 5 communicated with the centre bore of second joint 6, had realized the unlatching of valve body.

Claims (9)

1. blood purification electromagnetic valve, at valve body (1) upper fixed line circle body (2), slip iron core (3) is housed in this coil case (2), described valve body (1) carries first joint (5) and second joint (6), it is characterized in that: the centre bore of first joint (5) is communicated with the inner chamber (1a) of valve body (1), be provided with annular boss (1b) in the bottom of valve body (1) inner chamber (1a), the centre bore of this annular boss (1b) is communicated with the centre bore of second joint (6), the sealing gasket (4) that is used for shutoff annular boss (1b) centre bore is positioned at the inner chamber (1a) of valve body (1), in the inner chamber (1a) of described valve body (1), be provided with telescopic separator, the upper end of this separator is fixed by coil case (2), fixedlys connected with sealing gasket (4) in the lower end of separator; The lower end of described slip iron core (3) is stretched in the separator, and fixedlys connected with separator, in the endoporus of slip iron core (3) upper end spring (7) is housed, and upper end of this spring (7) and coil case (2) connect.
2. blood purification electromagnetic valve according to claim 1, it is characterized in that: described separator is made of locating pad (8), corrugated tube (9) and positioning seat (10), wherein locating pad (8) is fixed by coil case (2), the middle part of this locating pad (8) bottom surface links to each other with the upper end of positioning seat (10) by corrugated tube (9), and positioning seat (10) fixes with sealing gasket (4); The centre bore of locating pad (8) and corrugated tube (9) is passed in the lower end of described slip iron core (3), and fixedlys connected with positioning seat (10).
3. blood purification electromagnetic valve according to claim 2 is characterized in that: described locating pad (8), corrugated tube (9) and positioning seat (10) are made by polytetrafluoroethylmaterial material.
4. according to claim 2 or 3 described blood purification electromagnetic valves, it is characterized in that: the lower end of described positioning seat (10) embeds in the sealing gasket (4), both tight fits.
5. blood purification electromagnetic valve according to claim 4 is characterized in that: the lower end of described slip iron core (3) is stretched in the positioning seat (10), both threaded engagement.
6. according to claim 2 or 3 described blood purification electromagnetic valves, it is characterized in that: between described valve body (1) and locating pad (8), be provided with sealing ring (11).
7. blood purification electromagnetic valve according to claim 1, it is characterized in that: in described coil case (2), be embedded with sliding ring (12), slip iron core (3) is installed in this sliding ring (12), is slidingly matched between described slip iron core (3) and the sliding ring (12).
8. according to claim 1 or 7 described blood purification electromagnetic valves, it is characterized in that: be provided with rubber ring (13) between the top of described slip iron core (3) and coil case (2), the part circle body of this rubber ring (13) embeds in the slip iron core (3).
9. blood purification electromagnetic valve according to claim 1 is characterized in that: described valve body (1), first joint (5) and second joint (6) are the integrative-structure by injection mo(u)lding.
CN 201110002786 2011-01-07 2011-01-07 Electromagnetic valve for blood purification Active CN102091381B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN 201110002786 CN102091381B (en) 2011-01-07 2011-01-07 Electromagnetic valve for blood purification
PCT/CN2011/074499 WO2012092744A1 (en) 2011-01-07 2011-05-23 Electromagnetic valve for purifying blood

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201110002786 CN102091381B (en) 2011-01-07 2011-01-07 Electromagnetic valve for blood purification

Publications (2)

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CN102091381A true CN102091381A (en) 2011-06-15
CN102091381B CN102091381B (en) 2012-10-10

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WO (1) WO2012092744A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103830837A (en) * 2012-11-27 2014-06-04 住友橡胶工业株式会社 Three-way valve
CN104183352A (en) * 2013-05-22 2014-12-03 宁波亨博电磁技术有限公司 Novel split-type movable iron core assembly
CN106362277A (en) * 2016-10-27 2017-02-01 桂林航天工业学院 Magnetic valve for hematodialysis device and control method thereof
CN106421948A (en) * 2016-11-01 2017-02-22 重庆大学 Electromagnetic valve for hemodialysis
CN107061837A (en) * 2016-12-26 2017-08-18 重庆科技学院 Magnetic valve for haemodialysis

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2619986A (en) * 1949-04-15 1952-12-02 Skinner Chuck Company Readily dismemberable valve assembly for sanitary dispensation of fluid
US3912398A (en) * 1973-12-21 1975-10-14 Control Data Corp Stroboscopic celestial scanner
DE3215799A1 (en) * 1982-04-28 1983-11-03 Leonhard Schleicher Südmo-Armaturenfabrik GmbH, 7081 Riesbürg Aseptic valve
CN1471617A (en) * 2000-10-25 2004-01-28 Apparatus and method for controlling fluid flow
CN201978346U (en) * 2011-01-07 2011-09-21 重庆山外山科技有限公司 Electromagnetic valve for blood purification

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JPH1043290A (en) * 1996-07-31 1998-02-17 Shibuya Kogyo Co Ltd Dialyzing device
CN1201828C (en) * 2002-10-28 2005-05-18 尹良红 Balancing pump and its driving method and use
CN2631515Y (en) * 2003-07-09 2004-08-11 王爱萍 Disposable filling mouth of analgesic liquid filling pump
JP4573860B2 (en) * 2007-08-22 2010-11-04 日機装株式会社 Blood purification equipment
JP2009297339A (en) * 2008-06-16 2009-12-24 Nikkiso Co Ltd Blood purifying device and priming method thereof
CN201532291U (en) * 2009-11-03 2010-07-21 重庆山外山科技有限公司 Electromagnetic valve leak detection device for blood purification

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2619986A (en) * 1949-04-15 1952-12-02 Skinner Chuck Company Readily dismemberable valve assembly for sanitary dispensation of fluid
US3912398A (en) * 1973-12-21 1975-10-14 Control Data Corp Stroboscopic celestial scanner
DE3215799A1 (en) * 1982-04-28 1983-11-03 Leonhard Schleicher Südmo-Armaturenfabrik GmbH, 7081 Riesbürg Aseptic valve
CN1471617A (en) * 2000-10-25 2004-01-28 Apparatus and method for controlling fluid flow
CN201978346U (en) * 2011-01-07 2011-09-21 重庆山外山科技有限公司 Electromagnetic valve for blood purification

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103830837A (en) * 2012-11-27 2014-06-04 住友橡胶工业株式会社 Three-way valve
CN103830837B (en) * 2012-11-27 2017-09-01 住友橡胶工业株式会社 Triple valve
CN104183352A (en) * 2013-05-22 2014-12-03 宁波亨博电磁技术有限公司 Novel split-type movable iron core assembly
CN106362277A (en) * 2016-10-27 2017-02-01 桂林航天工业学院 Magnetic valve for hematodialysis device and control method thereof
CN106421948A (en) * 2016-11-01 2017-02-22 重庆大学 Electromagnetic valve for hemodialysis
CN107061837A (en) * 2016-12-26 2017-08-18 重庆科技学院 Magnetic valve for haemodialysis

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Publication number Publication date
CN102091381B (en) 2012-10-10
WO2012092744A1 (en) 2012-07-12

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Denomination of invention: Electromagnetic valve for blood purification

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Denomination of invention: Electromagnetic valve for blood purification

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Inventor after: Gao Guangyong

Inventor after: Liu Zhiyong

Inventor after: Ren Yingxiang

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Address after: The 401121 northern New District of Chongqing municipality Mount Huangshan Road No. 5 South Building Mercury Technology Development Center

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Registration number: 2015990000104

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Denomination of invention: Electromagnetic valve for blood purification

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Address after: 401123 Tzu Chi Road, Liangjiang New Area, Chongqing, No. 1

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Address before: The 401121 northern New District of Chongqing municipality Mount Huangshan Road No. 5 South Building Mercury Technology Development Center

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Date of cancellation: 20210129

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Registration number: 2017980000035