CN208076699U - A kind of isolator for nuclear magnetic resonance multi-channel coil - Google Patents
A kind of isolator for nuclear magnetic resonance multi-channel coil Download PDFInfo
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- CN208076699U CN208076699U CN201820465780.0U CN201820465780U CN208076699U CN 208076699 U CN208076699 U CN 208076699U CN 201820465780 U CN201820465780 U CN 201820465780U CN 208076699 U CN208076699 U CN 208076699U
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- screw
- lead screw
- magnetic resonance
- support plate
- nuclear magnetic
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Abstract
The utility model discloses a kind of isolators for nuclear magnetic resonance multi-channel coil, are related to malcoils decoupling equipment technical field.Including bottom plate, the top surface both ends of bottom plate have been respectively fixedly connected with support plate, and hole is provided through on one of support plate；Lead screw is rotatably connected in through hole, one end of lead screw is rotatablely connected with the side of another support plate, and lead screw includes several sections of thread segments, and the helical pitch of adjacent two thread segment is two times of relationships, and screw is connected on thread segment；It is respectively arranged with mutual corresponding first winding and the second winding on the surface of adjacent two screw of lead screw one end.The utility model on bottom plate by being arranged support plate, and lead screw is set on support plate, and then the distance between screw is adjusted come rotary screw rod by the degree of overlapping between the first winding and the second winding, the degree of coupling between two neighboring imaging coil is reduced, the working efficiency of the signal-to-noise ratio and people of nuclear magnetic resonance multi-channel coil is improved.
Description
Technical field
The utility model belongs to malcoils decoupling equipment technical field, and nuclear magnetic resonance is used for more particularly to one kind
The isolator of multi-channel coil.
Background technology
Nowadays nuclear magnetic resonance is commonly used in terms of medical treatment, and under the background of magnetic resonance imaging, including multiple lines
The multichannel array coil of circle channel unit has become the selection for obtaining dissection surface high-resolution imaging method.This array line
The benefit of circle can be obtained compared to the higher signal-to-noise ratio of single channel coil in a big or distributed volume.Often
The region of a coil channel unit is limited, but in channel unit region from anywhere in can obtain high s/n ratio.
The signal being combined in this way can obtain the more high letters big relative to single channel unit from anywhere in region
Make an uproar than picture.In general, these unique channel units are by being easily coupled to each other multichannel array coil group together
At.Coupling between channel unit can consume energy and increase the effective resistance of channel unit, to reduce signal-to-noise ratio and cause
Image artifacts.
Then, inhibiting coupling to reduce it to bottom line in a multichannel array coil becomes a kind of desirable side
Method.Currently used technology is to increase additional inductance or capacitance to eliminate coupling, however this by increasing additional inductance
It is realized by adjusting inductance and capacitance with capacitance to eliminate the decoupling index of the method for coupling, due to inductance capacitance value
Range is limited, so the degree of coupling of coil can not be adjusted accurately, it has not been convenient to determine the minimum coupling between coil；And
Also have in the market and the degree of coupling between adjusting adjacent imaging coil, but this regulative mode are detected by the degree of overlapping between winding
Multiple imaging coils are adjusted while can not be effectively, there is certain limitation.
Therefore, require study a kind of decoupling dress for adjusting multiple imaging coils while nuclear magnetic resonance multi-channel coil
It sets.
Utility model content
The purpose of this utility model is to provide a kind of isolators for nuclear magnetic resonance multi-channel coil, by the bottom of at
Support plate is set on plate, and lead screw is set on support plate, and then is rotated by the degree of overlapping between the first winding and the second winding
Lead screw adjusts the distance between screw, reduces the degree of coupling between two neighboring imaging coil, solves existing nuclear magnetic resonance line
Coupled problem between circle.
In order to solve the above technical problems, the utility model is achieved through the following technical solutions：
The utility model is a kind of isolator for nuclear magnetic resonance multi-channel coil, including bottom plate, the bottom plate
Top surface both ends have been respectively fixedly connected with support plate, and hole is provided through on one of them described support plate；Rotation connects in the through hole
It is connected to lead screw, one end of the lead screw is rotatablely connected with the side of another support plate, and the lead screw includes several sections of thread segments, phase
The helical pitch of adjacent two thread segments is two times of relationships, is connected with screw on the thread segment, imaging line is provided on the screw
Circle；It is respectively arranged with mutual corresponding first winding and the second winding, institute on the surface of adjacent two screw of described lead screw one end
State the first electricity that the first winding and the second winding are constituted with the two neighboring imaging coil in nuclear magnetic resonance multi-channel coil respectively
Road circuit is connected with second circuit circuit.
Further, the stroke range of screw thread segment on lead screw is in 1mm~60mm.
Further, slideway is provided on the top surface of the bottom plate between two support plates, the bottom surface of the screw, which is fixed, to be connected
It is connected to sliding block compatible with slideway.
Further, it is provided with holding screw on the through hole.
Further, the lead screw end on the outside of the support plate is socketed with rubber handle.
The utility model has the advantages that：
1, the utility model carrys out rotary screw rod by using the degree of overlapping between the first winding and the second winding, and then realizes
Between screw away from or approaching finally precisely adjusting the degree of coupling between two neighboring imaging coil, effectively reduce two
Coupling between a imaging coil improves the signal-to-noise ratio of nuclear magnetic resonance multi-channel coil.
2, the utility model passes through rotary screw rod so that screw moves on different thread segments, so that adjacent two
The distance between imaging coil is adjustable, can effectively reduce the degree of coupling between adjacent two imaging coil, and between screw away from
From easy to adjust, the distance between multiple imaging coils can be adjusted simultaneously, improve the working efficiency of people.
Certainly, any product for implementing the utility model does not necessarily require achieving all the advantages described above at the same time.
Description of the drawings
In order to illustrate more clearly of the technical solution of the utility model embodiment, make required for being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the utility model,
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
Other attached drawings.
Fig. 1 is a kind of structural schematic diagram of isolator for nuclear magnetic resonance multi-channel coil of the utility model；
Fig. 2 is the partial sectional view of the utility model；
Fig. 3 is the structural schematic diagram of the lead screw of the utility model；
Fig. 4 is the connection diagram of first winding and the second winding of the utility model；
In attached drawing, parts list represented by the reference numerals are as follows：
1- bottom plates, 2- lead screws, 3- screws, the first circuit loops of 4-, 5- second circuits circuit, 101- support plates, 102- slideways,
201- thread segments, the first windings of 301-, the second windings of 302-, 303- sliding blocks.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
The all other embodiment obtained, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be understood that term " setting ", "upper", " running through ", "top", " length "
Equal indicating positions or position relationship, are merely for convenience of describing the present invention and simplifying the description, rather than indicate or imply institute
The component or element of finger must have a particular orientation, and with specific azimuth configuration and operation, therefore should not be understood as to this reality
With novel limitation.
As shown in Figure 1, the utility model is a kind of isolator for nuclear magnetic resonance multi-channel coil, including cuboid
The top surface both ends of bottom plate 1, bottom plate 1 have been respectively fixedly connected with support plate 101, and support plate 101 provides support for the rotation of lead screw 2, wherein
It is provided through hole on one support plate 101.
As in Figure 2-4, lead screw 2, the side of one end of lead screw 2 and another support plate 101 are rotatably connected in through hole
Rotation connection, lead screw 2 include several sections of thread segments 201, and the helical pitch of adjacent two thread segment 201 is two times of relationships, on thread segment 201
It is connected with screw 3, when rotary screw rod 2, since the helical pitch on the thread segment 201 on lead screw 2 is twice of relationship, so appointing
The distance between two screws 3 anticipated in multiple screws 3 keep relatively equal, and imaging coil or screw 3 are provided on screw 3
End face is provided with imaging coil, and imaging coil is made by nano material, it is ensured that while signal-to-noise ratio, multi-channel coil it
Between coupling substantially reduce, when screw 3 moves, imaging coil will and then move；
As shown in figure 4, being respectively arranged with mutual corresponding first winding on the surface of adjacent two screw 3 of 2 one end of lead screw
301 and second winding 302, silk can be adjusted with rotary screw rod 2 by the degree of overlapping between the first winding 301 and the second winding 302
Distance between mother 3, and then the degree of coupling between two neighboring imaging coil is adjusted, improve the letter of nuclear magnetic resonance multi-channel coil
It makes an uproar and compares, the first winding 301 and the second winding 302 are constituted with the two neighboring imaging coil in nuclear magnetic resonance multi-channel coil respectively
The first circuit loop 4 be connected with second circuit circuit 5.
Wherein, the stroke range of the thread segment 201 on lead screw 2 of screw 3 is in 1mm~60mm.
Wherein, it is provided with slideway 102 on the top surface of the bottom plate 1 between two support plates 101, the bottom surface of screw 3 is fixedly connected with
Sliding block 303 compatible with slideway 102, passes through the cooperation of slideway 102 and sliding block 303 so that screw 3 can be determined on bottom plate 1
To movement.
Wherein, it is provided with holding screw on through hole, it can effective locking screw 2.
Wherein, 2 end of lead screw positioned at 101 outside of support plate is socketed with rubber handle, is convenient for people's rotary screw rod 2.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained in at least one of the utility model
In embodiment or example.In the present specification, schematic expression of the above terms be not necessarily referring to identical embodiment or
Example.Moreover, particular features, structures, materials, or characteristics described can be in any one or more embodiments or example
In can be combined in any suitable manner.
The preferred embodiment in the utility model disclosed above is only intended to help to illustrate the utility model.Preferred embodiment is simultaneously
There is no the details that detailed descriptionthe is all, does not limit the specific implementation mode that the utility model is only described yet.Obviously, according to this theory
The content of bright book can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to preferably
The principles of the present invention and practical application are explained, to enable skilled artisan to be best understood by and utilize this
Utility model.The utility model is limited only by the claims and their full scope and equivalents.
Claims (5)
1. a kind of isolator for nuclear magnetic resonance multi-channel coil, including bottom plate (1), it is characterised in that：
The top surface both ends of the bottom plate (1) have been respectively fixedly connected with support plate (101), are arranged on one of them described support plate (101)
There is through hole；
Lead screw (2) is rotatably connected in the through hole, one end of the lead screw (2) turns with the side of another support plate (101)
Dynamic connection, the lead screw (2) include several sections of thread segments (201), and the helical pitch of adjacent two thread segment (201) is two times of relationships, institute
It states and is connected with screw (3) on thread segment (201), imaging coil is provided on the screw (3)；
Be respectively arranged on the surface of adjacent two screw (3) of described lead screw (2) one end mutual corresponding first winding (301) and
Second winding (302), first winding (301) and the second winding (302) respectively with the phase in nuclear magnetic resonance multi-channel coil
The first circuit loop (4) that adjacent two imaging coils are constituted is connected with second circuit circuit (5).
2. a kind of isolator for nuclear magnetic resonance multi-channel coil according to claim 1, which is characterized in that described
The stroke range of screw (3) thread segment (201) on lead screw (2) is in 1mm~60mm.
3. a kind of isolator for nuclear magnetic resonance multi-channel coil according to claim 1, which is characterized in that two institutes
State and be provided with slideway (102) on the top surface of the bottom plate (1) between support plate (101), the bottom surface of the screw (3) be fixedly connected with
The compatible sliding block (303) of slideway (102).
4. a kind of isolator for nuclear magnetic resonance multi-channel coil according to claim 1, which is characterized in that described
Holding screw is provided on through hole.
5. a kind of isolator for nuclear magnetic resonance multi-channel coil according to claim 1, which is characterized in that be located at
Lead screw (2) end on the outside of the support plate (101) is socketed with rubber handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820465780.0U CN208076699U (en) | 2018-03-30 | 2018-03-30 | A kind of isolator for nuclear magnetic resonance multi-channel coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820465780.0U CN208076699U (en) | 2018-03-30 | 2018-03-30 | A kind of isolator for nuclear magnetic resonance multi-channel coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208076699U true CN208076699U (en) | 2018-11-09 |
Family
ID=64043071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820465780.0U Expired - Fee Related CN208076699U (en) | 2018-03-30 | 2018-03-30 | A kind of isolator for nuclear magnetic resonance multi-channel coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208076699U (en) |
-
2018
- 2018-03-30 CN CN201820465780.0U patent/CN208076699U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20181109 Termination date: 20210330 |
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| CF01 | Termination of patent right due to non-payment of annual fee |