CN107229025A - The heat shielding cover and MR imaging apparatus of MR imaging apparatus - Google Patents

The heat shielding cover and MR imaging apparatus of MR imaging apparatus Download PDF

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Publication number
CN107229025A
CN107229025A CN201610176087.7A CN201610176087A CN107229025A CN 107229025 A CN107229025 A CN 107229025A CN 201610176087 A CN201610176087 A CN 201610176087A CN 107229025 A CN107229025 A CN 107229025A
Authority
CN
China
Prior art keywords
heat shielding
shielding cover
imaging apparatus
connection
inner tube
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.)
Pending
Application number
CN201610176087.7A
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Chinese (zh)
Inventor
张布卿
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.)
Siemens Shenzhen Magnetic Resonance Ltd
Original Assignee
Siemens Shenzhen Magnetic Resonance 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 Siemens Shenzhen Magnetic Resonance Ltd filed Critical Siemens Shenzhen Magnetic Resonance Ltd
Priority to CN201610176087.7A priority Critical patent/CN107229025A/en
Publication of CN107229025A publication Critical patent/CN107229025A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00Arrangements or instruments for measuring magnetic variables
    • G01R33/20Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/38Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
    • G01R33/3804Additional hardware for cooling or heating of the magnet assembly, for housing a cooled or heated part of the magnet assembly or for temperature control of the magnet assembly

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  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)

Abstract

The heat shielding cover and MR imaging apparatus of MR imaging apparatus.The heat shielding cover of MR imaging apparatus, the vacuum tank (30) for coating the MR imaging apparatus, the heat shielding cover includes a mixing material of hardening, and the mixing material includes that fibrous material, graphite is dilute and resin.Above-mentioned heat shielding cover will not also produce vortex flow relative to superconducting magnet vibrations, can improve image quality, and it ensures that intensity without too thick thickness, it is possible to decrease the manufacture difficulty of suspension arrangement.

Description

The heat shielding cover and MR imaging apparatus of MR imaging apparatus
Technical field
The present invention relates to a kind of screening arrangement, more particularly to a kind of heat shielding cover.Have the invention further relates to one kind above-mentioned The MR imaging apparatus of heat shielding cover.
Background technology
In existing magnetic resonance equipment, superconducting magnet needs to be positioned in cryostat.Cryostat generally comprises one Full of cooling agent for placement superconducting magnetic in individual heat shielding cover and a vacuum tank coated by heat shielding cover, vacuum tank Body.When superconducting magnet works, heat shielding cover can play a part of reducing cooling agent consumption, and it typically has by good heat conductivity Metal is made (such as copper, aluminium etc.).
However, when superconducting magnet works, the vibrations of each several part very little all may result in heat shielding cover and superconducting magnet Relative motion, metal fever radome is produced vortex flow, influence magnetic resonance equipment is ultimately imaged.
In addition, the intensity to ensure metal heat shielding cover, existing metal fever radome is required for thicker thickness, weight is caused Amount is very heavy, the suspension arrangement of heat shielding cover is subjected to higher load.
The content of the invention
It is an object of the invention to provide a kind of heat shielding cover, it will not also produce vortex flow relative to superconducting magnet vibrations, Image quality is improved, and it ensures that intensity without too thick thickness, it is possible to decrease the manufacture difficulty of suspension arrangement.
It is a further object to provide a kind of MR imaging apparatus with above-mentioned heat shielding cover.
The invention provides a kind of heat shielding cover, heat shielding cover is used for the vacuum tank for coating MR imaging apparatus, very Empty container is the column shape container that a section is annular, and heat shielding cover includes a mixing material of hardening, and mixing material includes fibre Tie up that reinforcing material, graphite is dilute and resin.Any metal material is used due to no in mixing material, so in heat shielding cover and surpassing When magnetic conductor has relative motion, any vortex flow will not be produced, being ultimately imaged for magnetic resonance equipment is not interfered with.Further, since Fibre reinforced materials has higher intensity, and it can greatly reduce the thickness of heat shielding cover, mitigates the suspension dress of heat shielding cover The load put, reduces the production difficulty of suspension arrangement.
In a kind of exemplary embodiment of heat shielding cover, the fibrous material in fibre reinforced materials is glass fibre.
In a kind of exemplary embodiment of heat shielding cover, the fibrous material in fibre reinforced materials is carbon fiber.
In a kind of exemplary embodiment of heat shielding cover, heat shielding cover includes an outer tube and an inner tube, outer tube Including a body and the end socket positioned at body two ends, wherein each end socket includes a connection through hole, inner tube is arranged in outer tube, Inner tube two ends are respectively with being connected through hole connection, and the diameter of said inner tube is equal with the diameter of the connection through hole.Said structure holds Easily manufacture and assembling, can help to control production cost.
In a kind of exemplary embodiment of heat shielding cover, the internal diameter or external diameter of said inner tube and the connection through hole Diameter is equal.
In a kind of exemplary embodiment of heat shielding cover, body includes multiple bodies, two adjacent bodys Component head and the tail are connected.Said structure easy to manufacture and assembling, can help to control production cost.
In a kind of exemplary embodiment of heat shielding cover, heat shielding cover also includes a closed-loop, closes ring cover On the position of adjacent two bodies head and the tail connection.
In a kind of exemplary embodiment of heat shielding cover, heat shielding cover also includes two annular slabs, two annular slabs It can be covered each by inner tube with being connected on the position of through hole connection.
Present invention also offers a kind of MR imaging apparatus, it includes an above-mentioned heat shielding cover, and heat shielding cover can be wrapped Cover vacuum tank.
Hereafter by clearly understandable mode, preferred embodiment is described with reference to the drawings, to the heat shielding of MR imaging apparatus Above-mentioned characteristic, technical characteristic, advantage and its implementation for covering cover and its MR imaging apparatus are further described.
Brief description of the drawings
The following drawings only does schematic illustration and explanation to the present invention, not delimit the scope of the invention.
A kind of decomposed structural representation of exemplary embodiments of the Fig. 1 to illustrate heat shielding cover.
A kind of decomposition texture schematic diagram of exemplary embodiments of the Fig. 2 to illustrate heat shielding cover
A kind of decomposed structural representation of exemplary embodiments of the Fig. 3 to illustrate heat shielding cover.
Fig. 4 is to illustrate the structural representation after the combination of heat shielding cover.
Label declaration
10 outer tubes
12 bodys
122 bodies
14 end sockets
142 connection through holes
144 second openends
17th, 19 annular slab
18 closed-loops
20 inner tubes
30 vacuum tanks
Embodiment
In order to be more clearly understood to the technical characteristic of invention, purpose and effect, now control brief description of the drawings is of the invention Embodiment, in the various figures identical label represent that structure is identical or structure is similar but function identical part.
Herein, " schematic " expression " serving as example, example or explanation ", will should not be described herein as " showing Any diagram, the embodiment of meaning property " are construed to a kind of preferred or more advantageous technical scheme.
To make only to schematically show part related to the present invention in simplified form, each figure, they are not represented Its as product practical structures.In addition, to readily appreciate simplified form, there is identical structure or function in some figures Part, only symbolically depicts one of those, or has only marked one of those.
Herein, " one " not only represents " only this ", can also represent the situation of " more than one ".
As shown in phantom in Figure 2, the vacuum tank 30 of MR imaging apparatus is the column shape container that a section is annular, Vacuum tank 20 can be coated after Fig. 2 heat shielding cover combination.Wherein, heat shielding cover is made up of mixing material hardening, mixing material Including fibre reinforced materials, graphene and resin.First fibre reinforced materials and graphene can be mixed during making, then add resin After-hardening.Due to, without any metal material is used, being transported relatively so having in heat shielding cover and superconducting magnet in the mixing material When dynamic, any vortex flow will not be produced, being ultimately imaged for magnetic resonance equipment is not interfered with.Secondly, it is super in vacuum tank 30 During magnetic conduction body running, because graphene has higher heat conductivility, it can be such that heat shielding cover plays in reduction vacuum tank Cooling agent consumption effect.Further, since fibre reinforced materials has higher intensity, it can greatly reduce heat shielding cover Thickness, mitigate heat shielding cover suspension arrangement load, reduce suspension arrangement production difficulty.Wherein, fibre reinforced materials In fibrous material can select glass fibre or carbon fiber, the difference needed certainly according to design also may be used in fibre reinforced materials From other fibrous materials.
Due to being made of above-mentioned mixing material, heat shielding cover can be made to be easier to produce its each package assembly with mould, As shown in figure 1, heat shielding cover may include an outer tube 10 and an inner tube 20.Outer tube 10 includes a body 12 and positioned at body The end socket 14 at 12 two ends, wherein each end socket 14 includes a connection through hole 142, inner tube 20 is arranged in outer tube 10, the two ends of inner tube 20 point Do not connected with being connected through hole 142, the diameter (internal diameter or external diameter) of said inner tube is equal with the diameter of the connection through hole.Above-mentioned knot Structure easy to manufacture and assembling, can help to control production cost.
As shown in Fig. 2 body 12 may include multiple bodies 122, two adjacent bodies 122 are connected from beginning to end. Said structure easy to manufacture and assembling, can help to control production cost.
As depicted in figs. 1 and 2, heat shielding cover also includes a closed-loop 18, and closed-loop 18 is covered in two adjacent pipes On the position that body component 122 is connected from beginning to end.Said structure easy to manufacture and assembling, can help to control production cost.
As shown in Figure 3 and Figure 4, heat shielding cover also includes two annular slabs 17,19, and two annular slabs 17,19 can cover respectively Inner tube 16 is placed on being connected on the position of the connection of through hole 142.Said structure easy to manufacture and assembling, can help to control production Cost.
Present invention also offers a kind of MR imaging apparatus, it includes an above-mentioned heat shielding cover, and the heat shielding cover can Coat vacuum tank 30.
It should be understood that, although this specification is described according to each embodiment, but not each embodiment only includes one Individual independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art will should say Bright book is as an entirety, and the technical solutions in the various embodiments may also be suitably combined, and forming those skilled in the art can be with The other embodiment of understanding.
The a series of detailed description of those listed above illustrating only for the possible embodiments of the present invention, They simultaneously are not used to limit the scope of the invention, all equivalent embodiments made without departing from skill spirit of the present invention or change More, such as feature combination, segmentation or repetition, should be included in the scope of the protection.

Claims (9)

1. the heat shielding cover of MR imaging apparatus, the vacuum tank (30) for coating the MR imaging apparatus, it is special Levy and be, the heat shielding cover includes a mixing material of hardening, and the mixing material is including fibrous material, graphite is dilute and sets Fat.
2. heat shielding cover as claimed in claim 1, wherein, the fibrous material is glass fibre.
3. heat shielding cover as claimed in claim 1, wherein, the fibrous material is carbon fiber.
4. heat shielding cover as claimed in claim 1, wherein, including:
One outer tube (10), including a body (12) and the end socket (14) positioned at the body (12) two ends, wherein each end socket (14) a connection through hole (142) is included;
One inner tube (20), is arranged in the outer tube (10), and said inner tube (20) two ends connect with the connection through hole (142) respectively Connect, the diameter of said inner tube is equal with the diameter of the connection through hole.
5. heat shielding cover as claimed in claim 4, wherein, the diameter of the internal diameter or external diameter of said inner tube and the connection through hole It is equal.
6. heat shielding cover as claimed in claim 4, wherein,
The body (12) includes multiple bodies (122), and two adjacent body (122) head and the tail are connected.
7. heat shielding cover as claimed in claim 6, wherein,
The heat shielding cover also includes a closed-loop (18), and the closed-loop (18) is covered in two adjacent bodys On the position of component (122) head and the tail connection.
8. heat shielding cover as claimed in claim 4, wherein,
The heat shielding cover also includes an annular slab (17,19), and the annular slab (17,19) is covered in said inner tube (16) and institute On the position for stating connection through hole (142) connection.
9. MR imaging apparatus, it is characterised in that including:
One heat shielding cover as any one of claim 1 to 8, the heat shielding cover can coat the vacuum tank (30)。
CN201610176087.7A 2016-03-24 2016-03-24 The heat shielding cover and MR imaging apparatus of MR imaging apparatus Pending CN107229025A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610176087.7A CN107229025A (en) 2016-03-24 2016-03-24 The heat shielding cover and MR imaging apparatus of MR imaging apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610176087.7A CN107229025A (en) 2016-03-24 2016-03-24 The heat shielding cover and MR imaging apparatus of MR imaging apparatus

Publications (1)

Publication Number Publication Date
CN107229025A true CN107229025A (en) 2017-10-03

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1873848A (en) * 2005-05-25 2006-12-06 通用电气公司 Apparatus for thermal shielding of a superconducting magnet
CN101127270A (en) * 2006-08-01 2008-02-20 通用电气公司 Apparatus for low AC loss thermal shielding and method of making same
CN201177660Y (en) * 2008-02-29 2009-01-07 西门子(中国)有限公司 Hanging device for superconducting magnet heat shield
CN201681150U (en) * 2010-05-26 2010-12-22 南京丰盛超导技术有限公司 Superconducting magnet thermal shielding case suspension system pull rod and special fixing and pre-tightening clamp thereof
CN104672781A (en) * 2014-12-03 2015-06-03 合复新材料科技(无锡)有限公司 Preparation method of electric vehicle battery box material
CN105268103A (en) * 2015-11-19 2016-01-27 北京品驰医疗设备有限公司 In vitro charging implantation medical instrument

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1873848A (en) * 2005-05-25 2006-12-06 通用电气公司 Apparatus for thermal shielding of a superconducting magnet
CN101127270A (en) * 2006-08-01 2008-02-20 通用电气公司 Apparatus for low AC loss thermal shielding and method of making same
CN201177660Y (en) * 2008-02-29 2009-01-07 西门子(中国)有限公司 Hanging device for superconducting magnet heat shield
CN201681150U (en) * 2010-05-26 2010-12-22 南京丰盛超导技术有限公司 Superconducting magnet thermal shielding case suspension system pull rod and special fixing and pre-tightening clamp thereof
CN104672781A (en) * 2014-12-03 2015-06-03 合复新材料科技(无锡)有限公司 Preparation method of electric vehicle battery box material
CN105268103A (en) * 2015-11-19 2016-01-27 北京品驰医疗设备有限公司 In vitro charging implantation medical instrument

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Application publication date: 20171003

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