CN209418235U - Four column type magnets - Google Patents
Four column type magnets Download PDFInfo
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- CN209418235U CN209418235U CN201920428596.3U CN201920428596U CN209418235U CN 209418235 U CN209418235 U CN 209418235U CN 201920428596 U CN201920428596 U CN 201920428596U CN 209418235 U CN209418235 U CN 209418235U
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- cover plate
- pole piece
- cartridge
- lower cover
- column
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Abstract
The utility model discloses a kind of four column type magnets, belong to field of medical device, including upper cover plate and lower cover plate, it is fixedly connected between the upper cover plate and lower cover plate by four cylindrical type columns, the upper cover plate, which is equipped with, sets the upper pole piece of electromagnetic coil in outer snare, the upper pole piece is equipped with upper cartridge, the lower cover plate is equipped with the lower pole piece for connecting lower cartridge, the lower pole piece outer ring is arranged with electromagnetic coil, the cartridge up and down is symmetrically distributed with gradient coil and grading ring, and the gradient coil is on the outside of the grading ring.The four column type magnet weights of the utility model using the above structure are light, open space is big, magnetic field homogeneity is high, meet the magnetic Circuit Design principle mandates of magnet.
Description
Technical field
The utility model relates to normal conductivity type magnetic resonance arts, more particularly to a kind of four column type magnets.
Background technique
MR imaging apparatus is to find and diagnose early-stage cancer and other a variety of state-of-the-art clinical diagnostic devices of disease,
And MR imaging apparatus provide contain much information, without ionising radiation, have no adverse effects to human body, have high resolution, imaging
Parameter is more, diagnostic area is wide, can arbitrary cross-section scanning the advantages that, therefore attention of the MR imaging apparatus by medical field.Magnetic
Body is the core component of normal conductivity type MR imaging apparatus, and performance directly affects the signal-to-noise ratio of magnetic resonance equipment imaging system,
Determine the quality of image.But traditional often conductivity type magnetic resonance equipment volume is big, weight weight, increases mechanical strong hidden in terms of column
Suffer from, and open space is small, causes magnetic field homogeneity not high because column is unevenly distributed.
Summary of the invention
The purpose of the utility model is to provide a kind of four column type magnets, solve existing normal conductivity type magnetic resonance equipment volume it is big,
Weight weight, open space is small, magnetic field homogeneity is low deficiency, research and develop it is a it is small in size, light-weight, open space is big, magnetic field is equal
Four high column type magnets of even property.
To achieve the above object, the utility model provides a kind of four column type magnets, including upper cover plate and lower cover plate, described
It is fixedly connected between upper cover plate and lower cover plate by four cylindrical type columns, the upper cover plate, which is equipped with, sets electromagnetic wire in outer snare
The upper pole piece of circle, the upper pole piece are equipped with upper cartridge, and the lower cover plate is equipped with the lower pole piece for connecting lower cartridge, the lower pole
Core outer ring is arranged with electromagnetic coil, and the cartridge up and down has been uniformly and symmetrically distributed gradient coil and grading ring, the gradient coil
On the outside of the grading ring.
Preferably, four cylindrical type columns symmetrically be distributed in upper and lower cover plates quadrangle.
Preferably, the grading ring is made of several segmental arcs.
Preferably, the pole piece up and down passes through fastening bolt respectively and is fixed in upper and lower cover plates.
Preferably, the gradient coil and grading ring pass through fastening bolt respectively and are fixed on cartridge up and down.
The utility model has the advantages that
(1) use four columnar structures, four cylindrical type columns symmetrically be distributed in upper and lower cover plates quadrangle, promoted
Magnetic field homogeneity.
(2) four columnar structures are used, can extend and open space, promote patient comfort.
Below by drawings and examples, the technical solution of the utility model is described in further detail.
Detailed description of the invention
Fig. 1 is a kind of four column type magnet structure schematic diagrames of the utility model.
Fig. 2 is a kind of four column type magnet top views of the utility model.
Wherein: 1- upper cover plate；The upper pole piece of 2-；The upper electromagnetic coil of 3-；The upper cartridge of 4-；5- column；6- grading ring；Pole under 7-
Head；Electromagnetic coil under 8-；Pole piece under 9-；10- lower cover plate.
Specific embodiment
With reference to the accompanying drawing, the embodiments of the present invention is described further.
Fig. 1 is a kind of four column type magnet structure schematic diagrames of the utility model, and Fig. 2 is a kind of four column type magnets of the utility model
Top view.As shown, a kind of four column type magnets, including upper cover plate 1 and lower cover plate 10, the upper cover plate 1 and lower cover plate 10 it
Between be fixedly connected by four cylindrical type columns 5, the upper cover plate 1, which is equipped with, sets the upper pole piece of upper electromagnetic coil 3 in outer snare
2, the upper pole piece 2 is equipped with upper cartridge 4, and the lower cover plate 10 is equipped with the lower pole piece 9 for connecting lower cartridge 7, the lower pole piece 9
Outer ring is arranged with lower electromagnetic coil 8, and the cartridge up and down has been uniformly and symmetrically distributed gradient coil and grading ring 6, the gradient line
Circle is in 6 outside of grading ring.
Upper cover plate 1 and lower cover plate 10 are fixedly connected with four cylindrical type columns 5 respectively by bolt, form four column type knots
Structure, upper pole piece 2 and lower pole piece 9 are separately fixed on upper cover plate 1 and lower cover plate 10 by bolt, and upper cartridge 4 and lower cartridge 7 pass through
Bolt is separately fixed on pole piece 2 and lower pole piece 9, and grading ring 6 is separately fixed at upper cartridge 4 by bolt by several segmental arcs
On lower cartridge 7.
Column 5 is cylindrical type mechanism, and the normal conductivity type magnetic resonance magnet with cylindrical type column 5, open space is big, is promoted and is suffered from
Person's comfort level, and four cylindrical type columns 5 symmetrically be distributed in upper and lower cover plates quadrangle, keep magnetic resonance configurations complete up and down
Holohedral symmetry, and then improve magnetic field homogeneity.And four columnar structures it is easy to operate, it is moulded it is active, the lines flow smoothly, column uses
The good low carbon content material of magnetic conductivity, it is uniform in material, while internal grain uniformity is made using annealing, to make magnet
The mechanical strength of rack increases substantially, and ensure that the uniformity in magnetic field and the smoothness of magnetic circuit, more meets the magnetic Circuit Design of magnet
Principle mandates have the characteristics that light-weight, small in size, open space is big, magnetic field homogeneity is high.
For electromagnetic coil 3,10 mainly for generation of magnetic field strength needed for nuclear magnetic resonance, gradient coil is primarily used to form edge
The gradient fields of imaging region linear distribution realize space orientation.Electromagnetic coil 3,10 generate magnetic field by upper and lower pole piece and on
Lower cartridge is transmitted to manner space, and the field strength of the required uniformity is formed by the structure of cartridge.
Four column types magnet volume provided by the utility model is small, light-weight, open space is big, and magnetic field homogeneity is high, meets
The requirement of magnet magnetic Circuit Design.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model rather than limit it
System, although the technical solution of the utility model is described in detail referring to preferred embodiment, the utility model it is common
Technical staff it is understood that its still can with the technical solution of the present invention is modified or equivalently replaced, and these
Modification or equivalent replacement also cannot make modified technical solution be detached from the spirit and scope of the technical scheme of the present invention.
Claims (5)
1. a kind of four column type magnets, it is characterised in that: the four column type magnets include upper cover plate and lower cover plate, the upper cover plate
It is fixedly connected between lower cover plate by four cylindrical type columns, the upper cover plate, which is equipped with, sets the upper of electromagnetic coil in outer snare
Pole piece, the upper pole piece are equipped with upper cartridge, and the lower cover plate is equipped with the lower pole piece for connecting lower cartridge, the lower pole piece outer ring
It is arranged with electromagnetic coil, the cartridge up and down has been uniformly and symmetrically distributed gradient coil and grading ring, and the gradient coil is described
On the outside of grading ring.
2. a kind of four column types magnet according to claim 1, it is characterised in that: four cylindrical type columns are symmetrically
Be distributed in upper and lower cover plates quadrangle.
3. a kind of four column types magnet according to claim 1, it is characterised in that: the grading ring is by several segmental arc groups
At.
4. a kind of four column types magnet according to claim 1, it is characterised in that: the pole piece up and down passes through fastening spiral shell respectively
Bolt is fixed in upper and lower cover plates.
5. a kind of four column types magnet according to claim 1, it is characterised in that: the gradient coil and grading ring lead to respectively
Fastening bolt is crossed to be fixed on cartridge up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920428596.3U CN209418235U (en) | 2019-04-01 | 2019-04-01 | Four column type magnets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920428596.3U CN209418235U (en) | 2019-04-01 | 2019-04-01 | Four column type magnets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209418235U true CN209418235U (en) | 2019-09-20 |
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ID=67946032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920428596.3U Active CN209418235U (en) | 2019-04-01 | 2019-04-01 | Four column type magnets |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209418235U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116004951A (en) * | 2022-10-31 | 2023-04-25 | 中国科学院高能物理研究所 | Annealing platform and method for magnetic alloy ring |
-
2019
- 2019-04-01 CN CN201920428596.3U patent/CN209418235U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116004951A (en) * | 2022-10-31 | 2023-04-25 | 中国科学院高能物理研究所 | Annealing platform and method for magnetic alloy ring |
| CN116004951B (en) * | 2022-10-31 | 2023-11-17 | 中国科学院高能物理研究所 | Annealing platform and method for magnetic alloy ring |
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| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20201120 Address after: 071000 commercial, Room 202, Shenzhen Garden Exhibition Center, 299 Dongsanhuan, Lianchi District, Baoding City, Hebei Province Patentee after: HEBEI HUIREN MEDICAL EQUIPMENT TECHNOLOGY Co.,Ltd. Address before: 072450 No. 1 Ziqiang Street, Wangdu County Economic Development Zone, Baoding City, Hebei Province Patentee before: HUIREN WANGDU MEDICAL EQUIPMENT SCIENCE & TECHNOLOGY Co.,Ltd. |