CN209280901U - Magnetic field homogeneity detection device - Google Patents
Magnetic field homogeneity detection device Download PDFInfo
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- CN209280901U CN209280901U CN201821909822.1U CN201821909822U CN209280901U CN 209280901 U CN209280901 U CN 209280901U CN 201821909822 U CN201821909822 U CN 201821909822U CN 209280901 U CN209280901 U CN 209280901U
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- magnetic field
- gradient coil
- rotational pin
- shimming plate
- field homogeneity
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Abstract
The utility model belongs to nuclear magnetic resonance technique field, more particularly to a kind of magnetic field homogeneity detection device, magnetic field homogeneity detection device include shimming plate, the upper rotational pin connecting for the upper gradient coil with nuclear magnetic resonance equipment, the lower rotational pin and several magnetic field detection parts connecting for the Gradient coil with nuclear magnetic resonance equipment；Each magnetic field detection part is mounted on shimming plate, upper rotational pin and lower rotational pin are respectively arranged at the opposite sides portion of shimming plate, and upper rotational pin and lower rotational pin are oppositely arranged, upper rotational pin and lower rotational pin are connected between shimming plate and upper gradient coil and between shimming plate and Gradient coil, so that shimming plate rotates between upper gradient coil and Gradient coil.The magnetic field homogeneity detection device of the utility model, without dismantling upper gradient coil and Gradient coil, it will be able to it realizes detection operation and easy to operate, improves detection efficiency, meanwhile, it also can accurately detect the magnetic field homogeneity of nuclear magnetic resonance equipment.
Description
Technical field
The utility model belongs to nuclear magnetic resonance technique field more particularly to a kind of magnetic field homogeneity detection device.
Background technique
Currently, generally requiring first during detecting the magnetic field homogeneity of nuclear magnetic resonance equipment by nuclear magnetic resonance equipment
Upper gradient coil and Gradient coil disassemble and then magnetic field homogeneity detection carried out to mobile nuclear magnetic resonance equipment,
It is time-consuming and laborious due to the disassembly process of upper gradient coil and Gradient coil, the difficulty of medical magnetic resonance detection is increased, together
When, the magnetic field homogeneity of the nuclear magnetic resonance equipment for loading onto upper gradient coil and Gradient coil can not be also detected, this just leads
The result inaccuracy for causing the uniformity of medical nuclear magnetic resonance to detect.
Utility model content
The purpose of this utility model is to provide a kind of magnetic field homogeneity detection devices, it is intended to solve core in the prior art
Magnetic resonance equipment field homogeneity detects time-consuming and laborious and inaccurate testing result technical problem.
A kind of magnetic field homogeneity detection device that in order to achieve the above purposes, the technical solution adopted by the utility model is: is applicable in
In the magnetic field homogeneity of detection nuclear magnetic resonance equipment, the magnetic field homogeneity detection device includes shimming plate, is used for and the core
The upper rotational pin of the upper gradient coil connection of magnetic resonance equipment is connect for the Gradient coil with the nuclear magnetic resonance equipment
Lower rotational pin and several magnetic field detection parts；Each magnetic field detection part is mounted on the shimming plate, the upper rotational pin
The opposite sides portion of the shimming plate, and the upper rotational pin and the lower rotational pin phase are respectively arranged at the lower rotational pin
To setting, the upper rotational pin and the lower rotational pin be connected between the shimming plate and the upper gradient coil and
Between the shimming plate and the Gradient coil, so that the shimming plate is in the upper gradient coil and the Gradient line
It is rotated between circle.
Further, the first end of the upper rotational pin and the first end of the lower rotational pin are fixedly installed in described respectively
In the opposite sides portion of shimming plate, and the second end of the upper rotational pin and the second end of the lower rotational pin respectively with it is described on
Gradient coil and Gradient coil rotation connection.
Further, the upper gradient coil and the Gradient coil offer rotating hole and lower rotating hole respectively,
The second end of the upper rotational pin is protruded into the upper rotating hole and is rotated in the upper rotating hole, and the of the lower rotational pin
Two ends are protruded into the lower rotating hole and are rotated in the lower rotating hole.
Further, the magnetic field homogeneity detection device further includes upper fixed strip and lower fixed strip, fixed item
It is fixedly connected on the upper gradient coil, and fixed item is equipped with upper rotation hole, the second end of the upper rotational pin
It protrudes into the upper rotation hole and is rotated in the upper rotation hole；The lower fixed strip is fixedly connected on the Gradient coil
On, and the lower fixed strip is equipped with lower rotation hole, the second end of the lower rotational pin protrudes into the lower rotation hole and in institute
State rotation in lower rotation hole.
Further, fixed item includes fixed section on several, and each fixed section along each fixed
The length direction of section successively mutually splices, and fixed section be located at head and the tail is fixedly installed in the upper gradient coil
On.
Further, the lower fixed strip includes several lower fixed sections, and each lower fixed section is along each lower fixation
The length direction of section successively mutually splices, and the lower fixed section being located at head and the tail is fixedly installed in the Gradient coil
On.
Further, the shimming plate is equipped with upper interconnecting piece and lower interconnecting piece, the upper interconnecting piece and the lower connection
Portion is respectively positioned on the same side of the shimming plate；The upper interconnecting piece is equipped with upper fixed hole, and the of the upper connecting column
One end is fixedly connected in fixed through-hole；The lower interconnecting piece is equipped with lower fixed hole, and the of the lower connecting column
One end is fixedly connected in the lower fixed hole.
Further, the shimming plate is poly (methyl methacrylate) plate.
Further, each magnetic field detection part includes mounting base and detection probe, and the shimming plate is equipped with several
A mounting hole, the mounting base are fixedly installed on the shimming plate by the mounting hole, and the shimming plate is equipped with several
A detection zone, each detection probe are located in the detection zone.
Further, each detection zone is respectively uniformly distributed using the midpoint of the shimming plate shaft as a plurality of of origin
On oval camber line, and the detection zone uniform intervals setting on every oval camber line.
The utility model has the beneficial effects that the magnetic field homogeneity detection device of the utility model first will when specifically used
Each magnetic field detection part is mounted on shimming plate, then the opposite sides portion of shimming plate is pacified by upper rotational pin and lower rotational pin respectively
On upper gradient coil and Gradient coil on nuclear magnetic resonance equipment, shimming plate is then rotated, magnetic field detection part can be into
360 ° of row rotations carry out the detection of magnetic field homogeneity to nuclear magnetic resonance equipment；The magnetic field homogeneity detection device of the utility model,
During the magnetic field homogeneity detection to nuclear magnetic resonance equipment, without dismantling upper gradient coil and Gradient coil, detection
Process is easy to operate, improves detection efficiency, meanwhile, it also can accurately detect the magnetic field homogeneity of nuclear magnetic resonance equipment.
Detailed description of the invention
It, below will be to embodiment or the prior art in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only that this is practical new
Some embodiments of type for those of ordinary skill in the art without any creative labor, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of magnetic field homogeneity detection device provided by the embodiment of the utility model.
Fig. 2 is the structural schematic diagram of the upper gradient coil of nuclear magnetic resonance equipment provided by the embodiment of the utility model.
Fig. 3 is the structural schematic diagram of the shimming plate of magnetic field homogeneity detection device provided by the embodiment of the utility model.
Fig. 4 is the structural schematic diagram of the upper fixed strip of magnetic field homogeneity detection device provided by the embodiment of the utility model.
Fig. 5 is that the inspection that is magnetic is installed on the upper fixed strip of magnetic field homogeneity detection device provided by the embodiment of the utility model
Survey the structural schematic diagram of part.
Fig. 6 is that the structure of magnetic field homogeneity detection device provided by the embodiment of the utility model detection nuclear magnetic resonance equipment is shown
It is intended to.
Wherein, each appended drawing reference in figure:
The upper interconnecting piece of 10-shimming plates 11-12-lower interconnecting piece
21-go up rotational pin 22-above fixed strip 31-lower rotational pin
32-lower 40-magnetic field detection of fixed strip, 41-mounting bases of part
The upper gradient coil of 42-50-nuclear magnetic resonance equipments of detection probe 51-
Upper 131-the mounting hole of fixed hole of 52-Gradient coils 111-
141-detection zones 221-upper fixed section 222-go up rotation hole
223-splicing protrusions 224-splice 225-connecting hole of groove
321-lower fixed sections 511-upper 512-fixation hole of rotating hole.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining the description of attached drawing 1~6 is exemplary, it is intended to for explaining the utility model, and should not be understood as practical to this
Novel limitation.
In the description of the present invention, it should be understood that term " length ", " width ", "upper", "lower", " preceding ",
The orientation or positional relationship of the instructions such as " rear ", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is based on attached
Orientation or positional relationship shown in figure, is merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion
Signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this
The limitation of utility model.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.The meaning of " plurality " is two or two in the description of the present invention,
More than, unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be
Mechanical connection, is also possible to be electrically connected；It can be directly connected, two can also be can be indirectly connected through an intermediary
The interaction relationship of connection or two elements inside element.It for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term in the present invention.
As shown in figs. 1 to 6, the utility model embodiment provides a kind of magnetic field homogeneity detection device, is suitable for detection
The magnetic field homogeneity of nuclear magnetic resonance equipment 50, the magnetic field homogeneity detection device include shimming plate 10 and the nuclear magnetic resonance
Upper rotational pin 21 that the upper gradient coil 51 of equipment 50 connects is connect with the Gradient coil 52 of the nuclear magnetic resonance equipment 50
Lower rotational pin 31 and several magnetic field detection parts 40, each magnetic field detection part 40 is mounted on the shimming plate 10, described
Upper rotational pin 21 and the lower rotational pin 31 are respectively arranged at the opposite sides portion of the shimming plate 10 and the upper rotational pin 21
It is oppositely arranged with the lower rotational pin 31, the upper rotational pin 21 and the lower rotational pin 31 are connected to the shimming plate 10
Between the upper gradient coil 51 and between the shimming plate 10 and the Gradient coil 52, so that the shimming plate
10 rotate between the upper gradient coil 51 and the Gradient coil 52.
Specifically, the magnetic field homogeneity detection device of the utility model embodiment first examines each magnetic field when specifically used
It surveys part 40 to be mounted on shimming plate 10, then the opposite sides portion of shimming plate 10 is passed through into upper rotational pin 21 and lower rotational pin 31 respectively
It is mounted on the upper gradient coil 51 and Gradient coil 52 on nuclear magnetic resonance equipment 50, then rotates shimming plate 10, magnetic field inspection
It surveys part 40 and is able to carry out the detection that 360 ° of rotations carry out magnetic field homogeneity to nuclear magnetic resonance equipment 50；The utility model embodiment
Magnetic field homogeneity detection device, during the magnetic field homogeneity detection to nuclear magnetic resonance equipment 50, without dismantling upper gradient
Coil 51 and Gradient coil 52, detection process is easy to operate, improves detection efficiency, meanwhile, also can accurately it detect
The magnetic field homogeneity of nuclear magnetic resonance equipment 50.
In the present embodiment, refering to fig. 1, shown in Fig. 2 and Fig. 3, the first end of the upper rotational pin 21 and the lower rotational pin
31 first end is fixedly installed in respectively in the opposite sides portion of the shimming plate 10, and the second end of the upper rotational pin 21 and
The second end of the lower rotational pin 31 is rotatablely connected with the upper gradient coil 51 and the Gradient coil 52 respectively.
Specifically, the opposite sides portion of shimming plate 10 by upper rotational pin 21 and lower rotational pin 31 respectively with upper gradient coil
51 and Gradient coil 52 directly rotate connection, realize shimming plate 10 between upper gradient coil 51 and Gradient coil 52
Rotation, while shimming plate 10, by the positioning action up and down of upper rotational pin 21 and lower rotational pin 31, the rotation of shimming plate 10 is more
To be reliable and stable, the installation of shimming plate 10 more simple and flexible.
In other embodiments, the first end of upper rotational pin 21 and the first end of lower rotational pin 31 are rotationally connected with even respectively
In the opposite sides portion of field plate 10, and the second end of upper rotational pin 21 and the second end of lower rotational pin 31 respectively with the upper gradient
Coil 51 is fixedly connected with the Gradient coil 52, which also can be realized shimming plate in upper gradient coil 51 and Gradient
It is rotated between coil 52.
In the present embodiment, refering to fig. 1, shown in Fig. 2 and Fig. 3, the upper gradient coil 51 and the Gradient coil 52 divide
Do not offer rotating hole 511 and lower rotating hole, the second end of the upper rotational pin 21 protrude into the upper rotating hole 511 and in
Rotation in the upper rotating hole 511, the second end of the lower rotational pin 31 protrude into the lower rotating hole and in the lower rotation
It is rotated in hole.
Specifically, rotating hole 511 and lower rotating hole are offered respectively on upper gradient coil 51 and Gradient coil 52, on
The end of rotational pin 21 and the cooperation with upper rotating hole 511 and lower rotating hole respectively of the end of lower rotational pin 31, both realize shimming
Plate 10 rotates, and realizes the positioning of shimming plate 10, meanwhile, using the connection type in hole and pin, but also the installing and dismounting of shimming
It is more simple.
Further, rotating hole 511 and lower rotating hole are offered respectively on upper gradient coil 51 and Gradient coil 52
It is mainly used in permanent magnetic resonance equipment 50, mainly considers 51 He of upper gradient coil of permanent magnetic resonance equipment 50
At center on Gradient coil 52 can aperture, and upper gradient coil 51 and Gradient coil 52 can normally make after aperture
With.
In the present embodiment, refering to fig. 1, shown in Fig. 3 and Fig. 4, the magnetic field homogeneity detection device further includes upper fixed strip
22 and lower fixed strip 32, fixed item 22 be fixedly connected on the upper gradient coil 51, and on fixed item 22
Equipped with upper rotation hole 222, the second end of the upper rotational pin 21 is protruded into the upper rotation hole 222 and in the upper rotation hole
Rotation in 222；The lower fixed strip 32 is fixedly connected on the Gradient coil 52, and the lower fixed strip 32 is equipped with down
Rotation hole, the second end of the lower rotational pin 31 are protruded into the lower rotation hole and are rotated in the lower rotation hole.
Specifically, when specifically used, upper fixed strip 22 and lower fixed strip 32 are first separately mounted to upper gradient coil 51
On Gradient coil 52, then the both ends of shimming plate 10 are rotationally pacified respectively by upper rotational pin 21 and lower rotational pin 31 again
On upper fixed strip 22 and lower fixed strip 32, by the connection function of upper fixed strip 22 and lower fixed strip 32, without in upper ladder
Rotating hole 511 and lower rotating hole are opened on degree coil 51 and Gradient coil 52, so that upper gradient coil 51 and Gradient coil
52 can guarantee complete structure, meanwhile, also improve the versatility of entire magnetic field homogeneity detection device；Simultaneously in shimming plate
10 pass through the cooperation of pin and hole, can either realize the rotation of shimming plate 10, also can be realized the fixation of shimming plate 10, so that shimming
The rotation of plate 10 is more simple and reliable.
Further, it is used using the structure of upper fixed strip 22 and lower fixed strip 32, upper fixed strip 22 and lower fixed strip 32
The structure type of strip, size is smaller, and occupied material is less, at low cost, is also convenient for storing.
Further, upper fixed strip 22 and lower fixed strip 32 can directly utilize upper gradient coil 51 and Gradient coil 52
On fixation hole 512 be fixed so that entirely upper gradient coil 51 and 52 structure of Gradient coil are more simple and compact.
Further, for some nuclear magnetic resonance that can not open up hole on upper gradient coil 51 and Gradient coil 52
Equipment 50, it is necessary to remove installation shimming plate 10, by the way of upper fixed strip 22 and lower fixed strip 32 to ensure shimming plate 10
Accurate measurement.
In the present embodiment, refering to fig. 1, shown in Fig. 3 and Fig. 4, fixed item 22 includes fixed section 221 on several,
Each fixed section 221 successively mutually splices along each fixed section 221 of length direction, and is located at described at head and the tail
Upper fixed section 221 is fixedly installed on the upper gradient coil 51.
Specifically, upper fixed strip 22 is mutually spliced by fixed section 221 on several, so that the storage of upper fixed strip 22
Occupied space is smaller, convenient for storage, placement and transport etc., improves carrying for entire magnetic field homogeneity detection device
Type, meanwhile, different rulers have been applicable in by the upper fixed strip 22 that the upper fixed section 221 of different number can also be spliced into different length
Very little nuclear magnetic resonance equipment 50, improves the scope of application of magnetic field homogeneity detection device.
Further, the stitching portion of adjacent two upper fixed sections 221 is respectively equipped with raised 223 Hes of mutually matched splicing
Splice groove 224, by the mutual splicing of splicing protrusion 223 and splicing groove 224, to be spliced to form a upper fixed strip
22, concatenation is more simple and reliable, and no setting is required other connecting components, so that the knot of entire magnetic field homogeneity detection device
Structure is more compact.
In the present embodiment, refering to fig. 1, shown in Fig. 3 and Fig. 4, the lower fixed strip 32 includes several lower fixed sections 321,
Each lower fixed section 321 successively mutually splices along the length direction of each lower fixed section 321, and is located at described at head and the tail
Lower fixed section 321 is fixedly installed on the Gradient coil 52.
Specifically, lower fixed strip 32 is mutually spliced by several lower fixed sections 321, so that the storage of lower fixed strip 32
Occupied space is smaller, convenient for storage, placement and transport etc., improves carrying for entire magnetic field homogeneity detection device
Type, meanwhile, different rulers have been applicable in by the lower fixed strip 32 that the lower fixed section 321 of different number can also be spliced into different length
Very little nuclear magnetic resonance equipment 50, improves the scope of application of magnetic field homogeneity detection device.
Further, the stitching portion of adjacent two lower fixed sections 321 is also respectively equipped with mutually matched splicing protrusion 223
With splicing groove 224, by splicing protrusion 223 and splicing groove 224 mutual splicing, to be spliced to form a lower fixed strip
32, concatenation is more simple and reliable, and no setting is required other connecting components, so that the knot of entire magnetic field homogeneity detection device
Structure is more compact.
Further, upper rotation hole 222 and lower rotation hole are respectively arranged on corresponding upper fixed section 221 and lower fixed section 321
On, so that shimming plate 10 rotates between upper fixed strip 22 and lower fixed strip 32.
Further, upper fixed section 221 and lower fixed section 321 are equipped with connecting hole 225, pass through and connect by using fastener
Hole 225 is connect to be fastenedly connected with the fixation hole 512 on the fixation hole 512 and Gradient coil 52 on upper gradient coil 51, thus
The connection of fixed strip 22 and upper gradient coil 51 in realization, the connection of lower fixed strip 32 and Gradient coil 52.
Preferably, fastener is screw, screw or bolt.
In the present embodiment, refering to fig. 1, shown in Fig. 3 and Fig. 4, the shimming plate 10 is equipped with upper interconnecting piece 11 and lower connection
Portion 12, the upper interconnecting piece 11 and the lower interconnecting piece 12 are respectively positioned on the same side of the shimming plate 10；The upper connection
Portion 11 is equipped with upper fixed hole 111, and the first end of the upper connecting column is fixedly connected in fixed through-hole 111；Institute
Lower interconnecting piece 12 is stated equipped with lower fixed hole, the first end of the lower connecting column is fixedly connected in the lower fixed hole.
It specifically, when in use, can be in first vertically to be placed on upper gradient coil 51 and Gradient coil by shimming plate 10
Between 52, the upper fixed hole 111 that then upper rotational pin 21 and lower rotational pin 31 are each passed through on upper interconnecting piece 11 again is under
After the lower fixed hole of interconnecting piece 12 again with upper fixed strip 22 and lower fixed strip 32 or directly with upper gradient coil 51 and descending stair
It spends coil 52 and rotates the connection, in this course, the shimming plate 10 that is mounted on of upper rotational pin 21 and lower rotational pin 31 is placed on
Latter step between upper gradient coil 51 and Gradient coil 52, enables shimming plate 10 to be successfully placed on gradient coil
Between 51 and Gradient coil 52, when shimming plate 10 being avoided to be placed between gradient coil 51 and Gradient coil 52 on rotate
Pin 21 and lower rotational pin 31 protrude out shimming plate 10 it is outer so that shimming plate 10 in upper and lower installation with upper gradient coil 51 and
Gradient coil 52 generates interference, and the installation and removal of entire magnetic field homogeneity detection device are more simple.
Further, upper interconnecting piece 11 and lower interconnecting piece 12 are respectively positioned on the same side of the shimming plate 10, are also convenient for
Rotational pin 21 and lower rotational pin 31 are inserted into fixed hole 111 and lower fixed hole respectively from the side of shimming plate 10, so that
The installation operation of entire magnetic field homogeneity detection device is more simple.
In the present embodiment, the shimming plate 10 is poly (methyl methacrylate) plate.
Specifically, material of the shimming plate 10 using organic glass, the light weight of shimming plate 10, convenient for the receipts of shimming plate 10
It receives, transport and uses.
In the present embodiment, refering to fig. 1, shown in Fig. 5 and Fig. 6, each magnetic field detection part 40 includes mounting base 41 and inspection
Probing head 42, the shimming plate 10 are equipped with several mounting holes 131, and the mounting base 41 is fixed by the mounting hole 131
It is installed on the shimming plate 10, the shimming plate 10 is equipped with several detection zones 141, and each detection probe 42 is located at institute
It states in detection zone 141.
Specifically, magnetic field detection part 40 includes mounting base 41 and detection probe 42, and mounting base 41 is for will test probe 42
It is mounted on shimming plate 10, detection probe 42 is rotated together with shimming plate 10, thus to nuclear magnetic resonance equipment 50
Magnetic field homogeneity detected, shimming plate 10 be equipped with detection zone 141, be mainly used for positioning detection probe 42, with
Ensure that detection probe 42 carries out the detection of magnetic field homogeneity in defined region, so that it is guaranteed that entire magnetic field homogeneity detection
Accuracy.
Further, since detection probe 42 can stretch out outside shimming plate 10, part detection zone 141 is had positioned at even
Outside field plate 10.
Further, mounting base 41 is fixedly connected by fastener with the mounting hole 131 on shimming plate 10, passes through fastener
Connection type have the advantages that easy disassembly, and the connective stability between mounting base 41 and shimming plate 10 might as well, avoid
Situations such as detection probe 42 is shaken during shimming plate 10 rotates, it is ensured that magnetic field detection part 40 detects accurate
Property.
Further, fastener is the components such as bolt, screw or screw.
In the present embodiment, refering to fig. 1, shown in Fig. 5 and Fig. 6, each detection zone 141 is respectively uniformly distributed with described even
The midpoint of 10 shaft of field plate is that the detection zone 141 on a plurality of oval camber line of origin, and on every oval camber line is equal
Even interval setting.
Specifically, when shimming plate 10 rotates, oval camber line path of passing by forms a closed elliposoidal, and every ellipse
There are multiple and uniform intervals to be arranged for detection zone 141 on circular arc line, enable detection probe 42 on every oval camber line
Magnetic field in one elliposoidal of detection without dead angle, can completely reflect the magnetic signature of medical nmr.
Further, the detection zone 141 on every oval camber line and corresponding detection zone 141 on other ellipse camber lines
Line passes through the midpoint of the axis of rotation of shimming plate 10, and detection zone 141 is arranged so can be whole with nuclear magnetic resonance equipment 50
The shape in a magnetic field is adapted, so that the testing result of entire magnetic field homogeneity detection device is more accurate.
Preferably, the quantity of oval camber line is three, is able on detection nuclear magnetic resonance equipment 50WithSpherical surface magnetic field.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (10)
1. a kind of magnetic field homogeneity detection device, suitable for detecting the magnetic field homogeneity of nuclear magnetic resonance equipment, it is characterised in that: institute
State the upper rotation that magnetic field homogeneity detection device includes shimming plate, connect for the upper gradient coil with the nuclear magnetic resonance equipment
Pin, the lower rotational pin and several magnetic field detection parts being connect for the Gradient coil with the nuclear magnetic resonance equipment；
Each magnetic field detection part is mounted on the shimming plate, and the upper rotational pin and the lower rotational pin are respectively arranged at
The opposite sides portion of the shimming plate, and the upper rotational pin and the lower rotational pin are oppositely arranged, the upper rotational pin and institute
Lower rotational pin is stated to be connected between the shimming plate and the upper gradient coil and the shimming plate and the Gradient
Between coil, so that the shimming plate rotates between the upper gradient coil and the Gradient coil.
2. magnetic field homogeneity detection device according to claim 1, it is characterised in that: the first end of the upper rotational pin and
The first end of the lower rotational pin is fixedly installed in respectively in the opposite sides portion of the shimming plate, and the of the upper rotational pin
The second end of two ends and the lower rotational pin is rotatablely connected with the upper gradient coil and the Gradient coil respectively.
3. magnetic field homogeneity detection device according to claim 2, it is characterised in that: the upper gradient coil and it is described under
Gradient coil offers rotating hole and lower rotating hole respectively, and the second end of the upper rotational pin protrudes into the upper rotating hole simultaneously
It is rotated in the upper rotating hole, the second end of the lower rotational pin protrudes into the lower rotating hole and in the lower rotating hole
Rotation.
4. magnetic field homogeneity detection device according to claim 1, it is characterised in that: the magnetic field homogeneity detection device
It further include upper fixed strip and lower fixed strip,
Fixed item is fixedly connected on the upper gradient coil, and fixed item is equipped with upper rotation hole, described
The second end of upper rotational pin is protruded into the upper rotation hole and is rotated in the upper rotation hole；
The lower fixed strip is fixedly connected on the Gradient coil, and the lower fixed strip is equipped with lower rotation hole, described
The second end of lower rotational pin is protruded into the lower rotation hole and is rotated in the lower rotation hole.
5. magnetic field homogeneity detection device according to claim 4, it is characterised in that: fixed item includes several
Upper fixed section, each fixed section successively mutually splices along each fixed section of length direction, and is located at head and the tail
Fixed section is fixedly installed on the upper gradient coil.
6. magnetic field homogeneity detection device according to claim 4, it is characterised in that: the lower fixed strip includes several
Lower fixed section, each lower fixed section successively mutually splice along the length direction of each lower fixed section, and are located at head and the tail
The lower fixed section is fixedly installed on the Gradient coil.
7. according to the described in any item magnetic field homogeneity detection devices of claim 2~6, it is characterised in that: on the shimming plate
Equipped with upper interconnecting piece and lower interconnecting piece, the upper interconnecting piece and the lower interconnecting piece are respectively positioned on the same side of the shimming plate
On；The upper interconnecting piece is equipped with upper fixed hole, and the first end of the upper connecting column is fixedly connected on fixed through-hole
It is interior；The lower interconnecting piece is equipped with lower fixed hole, and the first end of the lower connecting column is fixedly connected on the lower fixed hole
It is interior.
8. described in any item magnetic field homogeneity detection devices according to claim 1~6, it is characterised in that: the shimming plate is
Poly (methyl methacrylate) plate.
9. described in any item magnetic field homogeneity detection devices according to claim 1~6, it is characterised in that: each magnetic field inspection
Surveying part includes mounting base and detection probe, and the shimming plate is equipped with several mounting holes, and the mounting base passes through the peace
Dress hole is fixedly installed on the shimming plate, and the shimming plate is equipped with several detection zones, and each detection probe is located at institute
It states in detection zone.
10. magnetic field homogeneity detection device according to claim 9, it is characterised in that: each detection zone difference is uniform
It is distributed in using the midpoint of the shimming plate shaft as on a plurality of oval camber line of origin, and described on every oval camber line
The setting of detection zone uniform intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821909822.1U CN209280901U (en) | 2018-11-19 | 2018-11-19 | Magnetic field homogeneity detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821909822.1U CN209280901U (en) | 2018-11-19 | 2018-11-19 | Magnetic field homogeneity detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209280901U true CN209280901U (en) | 2019-08-20 |
Family
ID=67601725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821909822.1U Active CN209280901U (en) | 2018-11-19 | 2018-11-19 | Magnetic field homogeneity detection device |
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| Country | Link |
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| CN (1) | CN209280901U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110531290A (en) * | 2019-09-06 | 2019-12-03 | 上海东软医疗科技有限公司 | Nuclear magnetic resonance equipment |
| CN113702884A (en) * | 2021-08-26 | 2021-11-26 | 深圳市联影高端医疗装备创新研究院 | Medical imaging equipment |
-
2018
- 2018-11-19 CN CN201821909822.1U patent/CN209280901U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110531290A (en) * | 2019-09-06 | 2019-12-03 | 上海东软医疗科技有限公司 | Nuclear magnetic resonance equipment |
| CN110531290B (en) * | 2019-09-06 | 2021-10-08 | 上海东软医疗科技有限公司 | Nuclear magnetic resonance apparatus |
| CN113702884A (en) * | 2021-08-26 | 2021-11-26 | 深圳市联影高端医疗装备创新研究院 | Medical imaging equipment |
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