CN205091449U - Magnetic field circulating device among laser magnetic resonance imaging - Google Patents
Magnetic field circulating device among laser magnetic resonance imaging Download PDFInfo
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- CN205091449U CN205091449U CN201520833854.8U CN201520833854U CN205091449U CN 205091449 U CN205091449 U CN 205091449U CN 201520833854 U CN201520833854 U CN 201520833854U CN 205091449 U CN205091449 U CN 205091449U
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- magnetic resonance
- magnetic field
- resonance imaging
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Abstract
The utility model relates to a big medical equipment technical field, concretely relates to magnetic field circulating device among laser magnetic resonance imaging, including compensating coil, the last exciting coil that is equipped with of compensating coil, exciting coil is connected with gradient coil and polarizing coil in advance, gradient coil and in advance the polarizing coil be parallel relation, the last optics atom magnetic field strength meter that is equipped with of compensating coil, be equipped with the formation of image target in the compensating coil, the utility model relates to an utilizing optics atom magnetic field strength meter to replace induction coil and carrying out the novel magnetic resonance imaging technique that the magnetic resonance signal detected, this kind of optics atom magnetic field strength meter has very high detectivity, also can obtain high graphics under the low condition of magnetostatic field plate, thus greatly reduced among the magnetic resonance imaging manufacturing maintenance cost of magnet to having overcome the pseudo - shadow of magnetic susceptibility to a certain extent and having disturbed, application prospect is comparatively wide.
Description
Technical field
The utility model relates to technical field of medical equipment, is specifically related to the magnetic field circulating device in a kind of laser magnetic resonance imaging.
Background technology
Conventional MRI imaging adopts inductive coil receiving magnetic resonance signals, according to Faraday's electromagnetic induction law, the motion of imaging object internal magnetization strength vector will produce induction electromotive force at inductive coil two ends, certain process is carried out to these induction electromotive forces and namely obtains magnetic resonance image (MRI), because the amplitude of magnetization intensity vector and movement velocity are all proportional to additional static magnetic field field intensity, so when static magnetic field field intensity declines, coil sensitivity will be subject to great impact, and this is also current MR imaging apparatus more and more one of reason pursuing high field intensity.
Utility model content
Technical problem to be solved in the utility model is to provide the magnetic field circulating device in a kind of detection sensitivity height laser magnetic resonance imaging.
For solving the problems of the technologies described above, the utility model provides following technical scheme: the magnetic field circulating device in a kind of laser magnetic resonance imaging, comprise compensating coil, described compensating coil is provided with drive coil, described drive coil is connected with gradient coil and pre-polarizing coil, described gradient coil and pre-polarizing coil are parallel relation, and described compensating coil is provided with optics atom magnetometer, are provided with imageable target in described compensating coil.
On such scheme basis preferably, the skeleton of described compensating coil adopts wooden structures.
The beneficial effect that the utility model compared with prior art has is: the utility model is a kind of Novel magnetic resonance imaging technique utilizing optics atom magnetometer replacement inductive coil to carry out magnetic resonance signal detection, this optics atom magnetometer has very high detection sensitivity, also high-definition picture can be obtained when static magnetic field is extremely low, thus the manufacture maintenance cost of magnet in magnetic resonance imaging is greatly reduced, and overcoming magnetic susceptibility artifact interference to a certain extent, application prospect is comparatively wide.
Accompanying drawing explanation
Fig. 1 is the utility model one-piece construction schematic diagram.
Number in the figure is: 1-compensating coil, 2-drive coil, 3-gradient coil, 4-pre-polarizing coil, 5-optics atom magnetometer, 6-imageable target.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
In description of the present utility model, it will be appreciated that, term " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, it is only the utility model for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
Known with reference to Fig. 1, magnetic field circulating device in a kind of laser magnetic resonance imaging, comprise compensating coil 1, described compensating coil 1 is provided with drive coil 2, described drive coil 2 is connected with gradient coil 3 and pre-polarizing coil 4, described gradient coil 3 and pre-polarizing coil 4 are in parallel relation, and described compensating coil 1 is provided with optics atom magnetometer 5, is provided with imageable target 6 in described compensating coil 1.
On above-described embodiment preferably, the skeleton of described compensating coil 1 adopts wooden structures, prevents magnetic field disturbed.
The utility model first imageable target 6 is placed among a homogeneous static magnetic field produced by solenoid, an additional pre-polarizing coil 4 simultaneously, the outside of imageable target 6 is also enclosed with gradient coil 3 and drive coil 2, optics atom magnetometer 5 is positioned over the both sides of imageable target 6, form a differential configuration, the magnet field intensity of the pre-polarizing coil 4 in the utility model is higher, but homogeneity and less stable, first pre-polarizing coil 4 is opened during imaging, its magnetic field produced is magnetized imageable target 6, then the electric current passing into pre-polarizing coil 4 is cut off, open drive coil 2 and gradient coil 3 simultaneously, imageable target 6 completes locus coding under the effect in these magnetic fields, finally utilize optics atom magnetometer 5 detected magnetic resonance signal.
Based on above-mentioned, the advantage that the utility model has has: the utility model is a kind of utilize optics atom magnetometer 5 to replace Novel magnetic resonance imaging technique that inductive coil carries out magnetic resonance signal detection, this optics atom magnetometer 5 has very high detection sensitivity, also high-definition picture can be obtained when static magnetic field is extremely low, thus the manufacture maintenance cost of magnet in magnetic resonance imaging is greatly reduced, and overcoming magnetic susceptibility artifact interference to a certain extent, application prospect is comparatively wide.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (2)
1. the magnetic field circulating device in a laser magnetic resonance imaging, comprise compensating coil (1), it is characterized in that: described compensating coil (1) is provided with drive coil (2), described drive coil (2) is connected with gradient coil (3) and pre-polarizing coil (4), described gradient coil (3) and pre-polarizing coil (4) are in parallel relation, described compensating coil (1) is provided with optics atom magnetometer (5), is provided with imageable target (6) in described compensating coil (1).
2. the magnetic field circulating device in a kind of laser magnetic resonance imaging according to claim 1, is characterized in that: the skeleton of described compensating coil (1) adopts wooden structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520833854.8U CN205091449U (en) | 2015-10-23 | 2015-10-23 | Magnetic field circulating device among laser magnetic resonance imaging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520833854.8U CN205091449U (en) | 2015-10-23 | 2015-10-23 | Magnetic field circulating device among laser magnetic resonance imaging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205091449U true CN205091449U (en) | 2016-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520833854.8U Expired - Fee Related CN205091449U (en) | 2015-10-23 | 2015-10-23 | Magnetic field circulating device among laser magnetic resonance imaging |
Country Status (1)
| Country | Link |
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| CN (1) | CN205091449U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106308796A (en) * | 2016-10-12 | 2017-01-11 | 重庆师范大学 | Magnetic induction imaging device based on laser atomic magnetometer |
-
2015
- 2015-10-23 CN CN201520833854.8U patent/CN205091449U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106308796A (en) * | 2016-10-12 | 2017-01-11 | 重庆师范大学 | Magnetic induction imaging device based on laser atomic magnetometer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20160316 Termination date: 20161023 |