CN206777322U - A kind of magnetic resonance imaging fixing device - Google Patents
A kind of magnetic resonance imaging fixing device Download PDFInfo
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- CN206777322U CN206777322U CN201720055204.4U CN201720055204U CN206777322U CN 206777322 U CN206777322 U CN 206777322U CN 201720055204 U CN201720055204 U CN 201720055204U CN 206777322 U CN206777322 U CN 206777322U
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- Prior art keywords
- threaded rod
- fixed
- damping chamber
- disk
- magnetic resonance
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Abstract
A kind of magnetic resonance imaging fixing device is the utility model is related to, including：Linking arm, fixed disk；The linking arm includes lower shoe, damping chamber, damping chamber both ends corresponding with the lower shoe length direction are provided with through hole, threaded rod is also slidably inserted between a pair of through holes of every damping chamber, the part that the threaded rod is located at the damping intracavitary is fixed with stopper, the threaded rod is also wrapped with the first compression spring, the threaded rod is bolted with adjusting nut close to the end of the lower shoe, and the second compression spring is additionally provided between the adjusting nut and the damping chamber；The fixed disk is provided with a pair and corresponded with the threaded rod, and the fixed disk includes vertical pole, fixed cone disk, soft sucker, clamping cone, fixing bolt connection；The utility model can be installed fast, can buffer the vibration of main magnet in the radial direction, can also adjust buffering effect.
Description
Technical field
It the utility model is related to technical field of medical instruments, and in particular to a kind of magnetic resonance imaging fixing device.
Background technology
Magnetic resonance, also referred to as magnetic resonance imaging, spin imaging, Magnetic resonance imaging, it is the another of the Medical Imaging after CT
Major progress.Since the eighties is applied, it is developed at a terrific speed.Its general principle be human body is placed in it is special
In magnetic field, after measurand is placed in magnetic field, its internal hydrogen atom can be polarized.With radio frequency pulse excitation human body
Interior hydrogen nuclei, causes hydrogen nuclei to resonate, and absorbs energy.After radio-frequency pulse is stopped, hydrogen nuclei is sent out by specific frequency
Go out electric signal, and the energy of absorption is discharged, included by external receiver, the acquisition figure after electronic computer is handled
Picture.
The information content that MRI is provided not only is more than other many Imagings in Medical Imaging, and different from existing
Imaging, therefore, its diagnosis to disease have very big potential superiority.Because it can directly make cross section, sagittal
The body tomographic image in face, coronal-plane and various inclined-planes；And without ionising radiation, there is no harmful effect to body, thus in medical domain
Used more and more.
Main magnet is one of chief component of magnetic resonance imaging system, for producing a uniform magnetic field, at present
Conventional main magnet is mostly superconducting magnet on the market, and its caused magnetic field intensity is 1 .5T or 3 .0T.Gradient coil is that magnetic is total to
Another important component for imaging system of shaking, gradient coil set are made up of three groups of gradient coils, linearly divided in space for producing
The gradient magnetic of cloth.By pulse train, the SECO to gradient magnetic amplitude can be achieved.Thus can cause in imaging region
The precession frequency of nucleon realizes the space encoding to imaging object center subsignal with the different and different of its locus.
Applying date 2016.02.25, the patent of application number 201620140322.0 disclose a kind of for magnetic resonance imaging
Magnet assembly, it includes main magnet, gradient coil, and the main magnet is provided with the host cavity axially extended, the gradient coil
It is installed in the host cavity of main magnet, the gap of ring-type, the bottom in the gap is formed between the gradient coil and main magnet
It is provided with damping layer, the magnet assembly also includes being used for the radially fixed component for fixing gradient coil, described radially fixed group
Part includes the first end being oppositely arranged and the second end, the first end of the radially fixed component are resisted against on gradient coil, institute
The second end for stating radially fixed component is resisted against main magnet, and the length of the radially fixed component is radially adjustable.
Above-mentioned patent has the following disadvantages：First, can be slowed down by radially fixed component between main magnet and gradient coil
Radial direction vibrations, the axial vibrations between main magnet and gradient coil can not effectively alleviate；2nd, the volume in the main magnet is needed
Open up host cavity, complex operation outside.
The content of the invention
In order to solve technical problem existing for background technology, there is provided a kind of magnetic resonance imaging fixing device, can be quick
Installation, can buffer the vibration of main magnet in the radial direction, can also adjust buffering effect.
Technical scheme is used by the utility model solves its technical problem：
A kind of magnetic resonance imaging fixing device, to connect main magnet and gradient coil, including：Linking arm, fixed disk；
The linking arm includes lower shoe, the damping chamber being symmetricly set on above a pair of lower shoe length direction both ends, institute
It is hollow rectangle body to state damping chamber, and damping chamber both ends corresponding with the lower shoe length direction are provided with through hole, and every subtracts
Threaded rod is also slidably inserted between a pair of through holes of shake chamber, the part that the threaded rod is located at the damping intracavitary is fixed
There is stopper, the part that the threaded rod is located at the damping intracavitary is also wrapped with the first compression spring, first compression spring
Positioned at the stopper regulation spiral shell is bolted with close to the side of the lower shoe, the threaded rod close to the end of the lower shoe
Mother, the second compression spring is additionally provided between the adjusting nut and the damping chamber；
The fixed disk is provided with a pair and corresponded with the threaded rod, and the fixed disk includes being located at the threaded rod
Vertical pole away from the lower shoe side, be located at the vertical pole lower end by narrow gradually wide fixed cone disk, be close to the fixation
Bore the soft sucker of disk madial wall, be close to the clamping cone of the soft sucker madial wall, the clamping cone is indulged with described
Bar lower end is connected by fixing bolt.
Further, the soft sucker lower edge is less than the fixed cone disk lower edge.
Further, the clamping cone lower edge is concordant with the fixed cone disk lower edge.
Have benefited from above-mentioned improved structure, when pressing the fixed disk, the gas in the soft sucker be squeezed out and then
The low pressure close to vacuum is formed, completes to fix.The fixing bolt by it is described clamping cone, soft sucker, fixed cone disk it
Between clamp, ensure sealing.
Further, the fixing bolt is hexagon socket head cap screw.
The beneficial effects of the utility model：
The utility model is quick for installation：
During installation, follow the steps below：
Step 1：A pair of fixed disks of the present utility model are absorbed and fixed on the main magnet and gradient coil respectively；
Step 2：Repeat step 1, in the main magnet, circumferential uniform at least three this realities of the both ends of the surface of gradient coil difference
With new, the fixation of the main magnet and gradient coil is completed.
The utility model can buffer the radial vibration of the main magnet：
When producing radial vibration between the main magnet and gradient coil, can be pressed by the first compression spring and second
Contracting spring absorbs.
Further, the utility model can rotate the adjusting nut and then adjust its position, change first pressure
The decrement of contracting spring and the second compression spring, vibrations of the adjustment the utility model in the main magnet in the radial direction buffer effect
Fruit.
Brief description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is the utility model use state diagram.
Fig. 2 is a kind of top view of embodiment of the utility model.
Fig. 3 is a kind of sectional view of embodiment of the utility model.
Fig. 4 is A portions enlarged diagram in Fig. 3.
In figure:
1. linking arm, 11. lower shoes, 12. damping chambers, 12a. through holes, 12b. threaded rods, 12c. stoppers, 12d. first are pressed
Contracting spring, 12e. adjusting nuts, the compression springs of 12f. second；
2. fixed disk, 21. vertical poles, 22. fixed cone disks, 23. soft suckers, 24. clamp cone, 25. fixing bolts；
3. main magnet；
4. gradient coil.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
A kind of magnetic resonance imaging fixing device, to connect main magnet 3 and gradient coil 4, it is characterised in that：Including：
Linking arm 1, fixed disk 2；
The linking arm 1 includes lower shoe 11, the damping being symmetricly set on above a pair of length direction both ends of lower shoe 11
Chamber 12, the damping chamber 12 are hollow rectangle body, and the damping chamber 12 both ends corresponding with the length direction of lower shoe 11 are set
Have and be also slidably inserted with threaded rod 12b, the threaded rod between through hole 12a, a pair of through hole 12a of every damping chamber 12
The part that 12b is located in the damping chamber 12 is fixed with stopper 12c, the threaded rod 12b and is located at the portion in the damping chamber 12
Point being also wrapped with the first compression spring 12d, the first compression spring 12d is located at the stopper 12c close to the lower shoe 11
Side, the threaded rod 12b close to the end of the lower shoe 11 be bolted with adjusting nut 12e, the adjusting nut 12e with
The second compression spring 12f is additionally provided between the damping chamber 12；
The fixed disk 2 is provided with a pair and corresponded with the threaded rod 12b, and the fixed disk 2 is described including being located at
Vertical poles 21 of the threaded rod 12b away from the side of lower shoe 11, be located at the lower end of vertical pole 21 by narrow gradually wide fixed cone disk
22nd, it is close to the soft sucker 23 of the madial wall of fixed cone disk 22, is close to the clamping cone of the madial wall of soft sucker 23
Body 24, the clamping cone 24 are connected with the lower end of vertical pole 21 by fixing bolt 25.
Further, the lower edge of soft sucker 23 is less than the lower edge of fixed cone disk 22.
Further, the clamping lower edge of cone 24 is concordant with the lower edge of fixed cone disk 22.
Have benefited from above-mentioned improved structure, when pressing the fixed disk 2, the gas in the soft sucker 23 be squeezed out into
And the low pressure close to vacuum is formed, complete to fix.The fixing bolt clamps cone 24, soft sucker 23, fixation by described
Clamped between cone disk 22, ensure sealing.
Further, the fixing bolt 25 is hexagon socket head cap screw.
Specifically used method：
The utility model is quick for installation：
During installation, follow the steps below：
Step 1：A pair of fixed disks 2 of the present utility model are absorbed and fixed at the main magnet 3 and gradient coil 4 respectively
On；
Step 2：Repeat step 1, in the main magnet 3, circumferential uniform at least three sheets of the both ends of the surface of gradient coil 4 difference
Utility model, complete the fixation of the main magnet 3 and gradient coil 4.
The utility model can buffer the radial vibration of the main magnet 3：
When producing radial vibration between the main magnet 3 and gradient coil 4, can by the first compression spring 12d and
Second compression spring 12f absorbs.
Further, the utility model can rotate the adjusting nut 12e and then adjust its position, change described first
Compression spring 12d and the second compression spring 12f decrement, adjustment the utility model in the main magnet 3 in the radial direction
Shake buffering effect.
Using it is above-mentioned according to desirable embodiment of the present utility model as enlightenment, pass through above-mentioned description, related work people
Member can carry out various changes and amendments in the range of without departing from this item utility model technological thought completely.This item is real
The content being not limited to new technical scope on specification, it is necessary to which its technology is determined according to right
Property scope.
Claims (4)
- A kind of 1. magnetic resonance imaging fixing device, to connect main magnet（3）And gradient coil（4）, it is characterised in that：Bag Include：Linking arm（1）, fixed disk（2）；The linking arm（1）Including lower shoe（11）, be symmetricly set on a pair of lower shoes（11）Subtracting above length direction both ends Shake chamber（12）, the damping chamber（12）For hollow rectangle body, the damping chamber（12）With the lower shoe（11）Length direction pair The both ends answered are provided with through hole（12a）, every damping chamber（12）A pair of through holes（12a）Between be also slidably inserted with threaded rod （12b）, the threaded rod（12b）Positioned at the damping chamber（12）Interior part is fixed with stopper（12c）, the threaded rod （12b）Positioned at the damping chamber（12）Interior part is also wrapped with the first compression spring（12d）, first compression spring （12d）Positioned at the stopper（12c）Close to the lower shoe（11）Side, the threaded rod（12b）Close to the lower shoe （11）End be bolted with adjusting nut（12e）, the adjusting nut（12e）With the damping chamber（12）Between be additionally provided with second Compression spring（12f）；The fixed disk（2）Provided with a pair and with the threaded rod（12b）Correspond, the fixed disk（2）Including being located at State threaded rod（12b）Away from the lower shoe（11）The vertical pole of side（21）, be located at the vertical pole（21）Lower end by narrow gradually wide Fixed cone disk（22）, be close to the fixed cone disk（22）The soft sucker of madial wall（23）, be close to the soft sucker （23）The clamping cone of madial wall（24）, the clamping cone（24）With the vertical pole（21）Lower end passes through fixing bolt（25）Even Connect.
- A kind of 2. magnetic resonance imaging fixing device according to claim 1, it is characterised in that：The soft sucker（23） Lower edge is less than the fixed cone disk（22）Lower edge.
- A kind of 3. magnetic resonance imaging fixing device according to claim 1 or 2, it is characterised in that：The clamping cone （24）Lower edge and the fixed cone disk（22）Lower edge is concordant.
- A kind of 4. magnetic resonance imaging fixing device according to claim 1, it is characterised in that：The fixing bolt（25） For hexagon socket head cap screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720055204.4U CN206777322U (en) | 2017-01-16 | 2017-01-16 | A kind of magnetic resonance imaging fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720055204.4U CN206777322U (en) | 2017-01-16 | 2017-01-16 | A kind of magnetic resonance imaging fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206777322U true CN206777322U (en) | 2017-12-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720055204.4U Expired - Fee Related CN206777322U (en) | 2017-01-16 | 2017-01-16 | A kind of magnetic resonance imaging fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206777322U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115553747A (en) * | 2022-04-15 | 2023-01-03 | 无锡锡州机械有限公司 | Nuclear magnetic resonance winding coil support convenient to supplementary installation |
-
2017
- 2017-01-16 CN CN201720055204.4U patent/CN206777322U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115553747A (en) * | 2022-04-15 | 2023-01-03 | 无锡锡州机械有限公司 | Nuclear magnetic resonance winding coil support convenient to supplementary installation |
| CN115553747B (en) * | 2022-04-15 | 2024-02-09 | 无锡锡州机械有限公司 | Nuclear magnetic resonance coil bracket convenient for auxiliary installation |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171222 Termination date: 20190116 |