CN103417213A - Coil positioning device - Google Patents
Coil positioning device Download PDFInfo
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- CN103417213A CN103417213A CN2012101531189A CN201210153118A CN103417213A CN 103417213 A CN103417213 A CN 103417213A CN 2012101531189 A CN2012101531189 A CN 2012101531189A CN 201210153118 A CN201210153118 A CN 201210153118A CN 103417213 A CN103417213 A CN 103417213A
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- label
- checkout gear
- thread spool
- coil
- determinand
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Abstract
The invention relates to a coil positioning device which comprises a coil device, a marker, detection devices and a control unit. The marker is arranged on a to-be-detected object, the detection devices are positioned in the coil device and used for detecting the marker and generating detection signals, and the control unit is connected with the detection devices to receive the detection signals generated by the detection devices and judge the position of the to-be-detected object corresponding to the marker according to the detection signals. The marker is adopted to mark the position of the to-be-detected object, the position of the marker is determined by the detection devices, and the to-be-detected object marked by the marker is adjusted to a proper position in a coil unit of a magnetic resonance instrument for nuclear magnetic resonance detection, so that pre-scanning work and repeated scanning operations for determining the position of the to-be-detected object are omitted, and coil utilization rate is increased.
Description
Technical field
The present invention relates to the medical device field, particularly a kind of thread spool positioner.
Background technology
Existing magnetic resonance equipment has various coil devices, as hand coil, knee coil, cervical region coil, yet there is no positioner in described magnetic resonance equipment, in hand coil, doctor or patient are by feeling to place the position of hands, then carry out prescan (localizer) and determine the position of hands, according to the result of prescan, correct the position that hands is placed, thereby cause unnecessary repeatability scanning.
Below for an example, illustrate, take the hand detection as example, as shown in Figure 1, First Line coil unit 21, the second coil unit 22, tertiary coil unit 23 mean to correspond to respectively palm finger, the carpal joint of hand 4, the coil of arm, due to factors such as cost, equipment complexity and system channels, the coil unit limited amount, therefore need rationally to utilize efficiently coil unit.When carpal joint, corresponding to the center of the second coil unit 22 time, each coil unit can carry out in optimal position the related scans of hand.But the device at hand magnetic test coil place is closed structure normally, can't check the particular location that hands is placed.As shown in Figures 2 and 3, when the position that hands is placed is undesirable (hand leading or hand lag behind), can be on scanning result out produce bad impact, also can cause unnecessary repeatability scanning simultaneously.
Summary of the invention
The purpose of this invention is to provide a kind of thread spool positioner, can accurately locate determinand, to avoid prescan work and the multiple scanning operation for determining the determinand position, improve the coil utilization rate.
Technical solution of the present invention is a kind of thread spool positioner, comprises coil device, also comprises:
Label, be arranged on determinand;
Checkout gear, be positioned at described coil device, for detection of described label and produce detection signal;
Control unit, be connected with described checkout gear, to receive the detection signal that described checkout gear produces and to judge according to described detection signal the determinand position that described label is corresponding.
As preferably: described thread spool positioner also comprises a display device, connects described control unit to show the position of described label.
As preferably: described checkout gear comprises at least one group of transmitting terminal and receiving terminal, and described transmitting terminal is for transmitting, and described receiving terminal, for receiving the described reflected signal transmitted, produces detection signal according to described reflected signal;
Described control unit determine received detection signal whether corresponding with label and according to the described label of the position judgment of described receiving terminal corresponding determinand position.
As preferably: described label is different from the reflectance of described determinand.
As preferably: described checkout gear is the Emission and receiving of infrared probe.
As preferably: described checkout gear is Laser emission and receiving transducer.
As preferably: described label is fluorescent material, and described sensor detects the optical signal of described label to determine the position of described label.
As preferably: described display device is the magnet panel.
Compared with prior art, the present invention adopts the position of label labelling determinand, and determine the position of label by checkout gear, the correct position when determinand of whole label labelling is done magnetic resonance detection to the coil unit of magnetic resonance device again, thereby avoid prescan work and multiple scanning operation for determining the determinand position, improve the coil utilization rate.
The accompanying drawing explanation
Fig. 1 is hand placement schematic diagram in the prior art magnetic resonance device;
Fig. 2 is the leading schematic diagram of hand placement in the prior art magnetic resonance device;
Fig. 3 is hand placement hysteresis schematic diagram in the prior art magnetic resonance device;
Fig. 4 is the structural representation of magnetic resonance device positioner of the present invention;
Fig. 5 is the signal schematic representation of magnetic resonance device positioner of the present invention;
Fig. 6 is hand placement schematic diagram in magnetic resonance device positioner of the present invention;
Fig. 7 is the position deviation schematic diagram that in magnetic resonance device positioner of the present invention, display device shows determinand;
Fig. 8 is the desirable schematic diagram in position that in magnetic resonance device positioner of the present invention, display device shows determinand.
The specific embodiment
The present invention is further detailed in conjunction with the accompanying drawings below:
A lot of details have been set forth in the following description so that fully understand the present invention.But the present invention can implement much to be different from alternate manner described here, those skilled in the art can be in the situation that do similar popularization without prejudice to intension of the present invention, so the present invention is not subject to the restriction of following public concrete enforcement.
Secondly, the present invention utilizes schematic diagram to be described in detail, when the embodiment of the present invention is described in detail in detail; for ease of explanation; the profile that means device architecture can be disobeyed general ratio and be done local the amplification, and described schematic diagram is example, and it should not limit the scope of protection of the invention at this.The three-dimensional space that in actual fabrication, should comprise in addition, length, width and the degree of depth.
Fig. 4 shows the schematic diagram of thread spool positioner of the present invention.
Refer to shown in Fig. 4, Fig. 5, the invention provides a kind of thread spool positioner, comprise coil device 1, also comprise:
Control unit 6, be connected with described checkout gear 5, with the detection signal that receives described checkout gear 5 generations determinand 4 positions that judge described label 3 correspondences according to described detection signal.
Described thread spool positioner also comprises a display device 7, connects described control unit 6 to show the position of described label 3.
Described checkout gear 5 comprises at least one group of transmitting terminal and receiving terminal, described transmitting terminal is for transmitting, described receiving terminal is for receiving the described reflected signal transmitted, produce detection signal according to described reflected signal, described checkout gear 5 can be popped one's head in for Emission and receiving of infrared, and described checkout gear 5 can also be Laser emission and laser pick-off probe;
Described control unit 6 determine received detection signal whether corresponding with label 3 and according to the described label 3 of the position judgment of described receiving terminal corresponding determinand 4 positions.
Below with a specific embodiment, the present invention is described, in the present embodiment, described determinand 4 be take hands as example, described checkout gear 5 be take the Emission and receiving of infrared probe as example, described display device 7 be take the magnet panel as example, with bracelet or other article that easily are fixed in the wrist place thing 3 that serves as a mark, described infrared emission probe is for transmitting to described label 3, and described infrared receiver probe is for receiving the transmitting terminal signal reflected by described label 3.Reflectance difference according to Infrared to different article, the more shallow people for colours of skin such as yellow, white people, skin is reflective infrared light largely, now with black bracelet or the very poor article of other reflexive thing that serves as a mark, the darker ethnic groups of the colour of skin such as corresponding black people, with regard to the thing 3 that serves as a mark with white bracelet or the very strong article of other reflexive.Due to skin and bracelet larger for the reflection coefficient difference of Infrared, infrared receiver probe receives the infrared signal be reflected back through determinand, existence due to label 3 on determinand 4, when label 3 is popped one's head in through Emission and receiving of infrared, the voltage of infrared receiver probe can change, compare by the voltage with default, can identify the Emission and receiving of infrared probe and label detected.Due to several Emission and receiving of infrared probes being housed in coil device 1, like this, the emission of diverse location and receiving transducer can obtain a level variation by detecting wrist place label 3.As Fig. 3, the level that control unit 6 receives each infrared receiver probe changes, control unit 6 changes according to the level obtained from different infrared receiver probes, judges the residing position of hands, and show the geometric center position with respect to the wrist portion coil on the magnet panel.
When wrist portion is positioned over the second coil unit 22, although also in the second corresponding position of coil unit 22, but not in optimal position, as shown in Figure 6, because hands has now been put into coil device 1, label 3 is received by tertiary coil unit 23 or the first corresponding infrared receiver probe in coil 21 places, before and after time according to front and back label that infrared receiver probe detects 3, control unit 6 can judge the direction of motion and the speed of selling, indicate hand present position deviation, show to sell how to place to make wrist portion aim at the center of the second coil unit 22 on the magnet panel, assurance reaches best scanning effect.
As shown in Figure 7, Figure 8, the solid black lines square frame shown on the magnet panel partly means proportionally to come the convergent-divergent coil dimension, the dashed rectangle of black has meaned the position of current hands placement with respect to coil unit, situation shown in Fig. 7 means that the hands placement is leading, the system prompt client need moves hands backward, until dotted line and solid line part are on same vertical plane, do not need by magnetic resonance equipment prescan hand position, avoid multiple scanning to adjust hand position accurately to locate simultaneously, as shown in Figure 8, the position ideal that shows hand placement.The some Emission and receiving of infrareds probes that adopt in the present embodiment bracelet on wrist to serve as a mark in thing 3 and coil device, utilize the different reflectivity of label 3 and hand, the reflected signal of putting into process infrared receiver probe reception label 3 at hand detects the level variation, process and judge label 3 positions corresponding with coil unit, place, place through control unit 6 again, and show by display device 7, when undesirable system by prompt system point out patient this how to place hand accurately to locate the position of hand, or the doctor points out the moving patients hand accurately to locate the position of hand by display device, the correct position when determinand of the Image Adjusting label labelling shown by display device is done magnetic resonance detection to the coil unit of magnetic resonance device, thereby avoid prescan work and multiple scanning operation for determining hand position, improve the coil utilization rate.
It should be noted that, in the present embodiment, described label 3 on the detection effect of magnetic field and determinand 4 all without impact, described checkout gear 5 on the magnetic field of the main field of magnetic resonance device and coil unit without impact.Above-described embodiment is orientated example as with hand, the invention is not restricted to this, can also be the location at other position, and the present invention can also have other embodiment, for example:
Described label can be fluorescent material, and checkout gear 5, for receiving the device of light, is determined the position of label 3 by the optical signal that receives label 3, then adjusted accurately to locate determinand by control unit 6 and display device 7.
Described display device can be the original display device of magnetic resonance device, and described control unit can be the modified model control unit of increase to the processing capacity of the sensor signal of positioner of the present invention on the basis of the original control unit of magnetic resonance device.The present invention adopts the position of label labelling determinand, and determine the position of label by checkout gear, the correct position when determinand of adjusting again the label labelling is done magnetic resonance detection to the coil unit of magnetic resonance device, thereby avoid prescan work and multiple scanning operation for determining the determinand position, improve the coil utilization rate.
The foregoing is only preferred embodiment of the present invention, all equalizations of doing according to the claims in the present invention scope change and modify, and all should belong to the covering scope of the claims in the present invention.
Claims (8)
1. a thread spool positioner, comprise coil device, it is characterized in that, also comprises:
Label, be arranged on determinand;
Checkout gear, be positioned at described coil device, for detection of described label and produce detection signal;
Control unit, be connected with described checkout gear, to receive the detection signal that described checkout gear produces and to judge according to described detection signal the determinand position that described label is corresponding.
2. thread spool positioner according to claim 1, it is characterized in that: described thread spool positioner also comprises a display device, connects described control unit to show the position of described label.
3. thread spool positioner according to claim 1 and 2, it is characterized in that: described checkout gear comprises at least one group of transmitting terminal and receiving terminal, described transmitting terminal is for transmitting, described receiving terminal, for receiving the described reflected signal transmitted, produces detection signal according to described reflected signal;
Described control unit determine received detection signal whether corresponding with label and according to the described label of the position judgment of described receiving terminal corresponding determinand position.
4. thread spool positioner according to claim 3, it is characterized in that: described label is different from the reflectance of described determinand.
5. thread spool positioner according to claim 4 is characterized in that: described checkout gear is the Emission and receiving of infrared probe.
6. thread spool positioner according to claim 4, it is characterized in that: described checkout gear is Laser emission and receiving transducer.
7. thread spool positioner according to claim 1, it is characterized in that: described label is fluorescent material, described checkout gear detects the optical signal of described label to determine the position of described label.
8. thread spool positioner according to claim 2, it is characterized in that: described display device is the magnet panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210153118.9A CN103417213B (en) | 2012-05-15 | 2012-05-15 | Thread spool positioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210153118.9A CN103417213B (en) | 2012-05-15 | 2012-05-15 | Thread spool positioner |
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| Publication Number | Publication Date |
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| CN103417213A true CN103417213A (en) | 2013-12-04 |
| CN103417213B CN103417213B (en) | 2015-09-02 |
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| CN201210153118.9A Active CN103417213B (en) | 2012-05-15 | 2012-05-15 | Thread spool positioner |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110286343A (en) * | 2019-07-10 | 2019-09-27 | 苏州众志医疗科技有限公司 | A kind of magnetic resonance radio frequency receiving coil and post processing of image method |
Citations (10)
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| US5066915A (en) * | 1989-06-28 | 1991-11-19 | Siemens-Asahi Medical System, Ltd. | RF coil positioning device for MRI |
| US20030204136A1 (en) * | 2002-04-25 | 2003-10-30 | Fonar Corporation | Magnetic resonance imaging fixture mounting |
| JP2004201977A (en) * | 2002-12-25 | 2004-07-22 | Ge Medical Systems Global Technology Co Llc | Mri apparatus |
| JP2004202143A (en) * | 2002-12-26 | 2004-07-22 | Ge Medical Systems Global Technology Co Llc | Magnetic resonance imaging instrument |
| CN1816753A (en) * | 2003-06-30 | 2006-08-09 | 皇家飞利浦电子股份有限公司 | Table position sensing for magnetic resonance imaging |
| CN1853583A (en) * | 2005-04-20 | 2006-11-01 | 西门子公司 | Method for determining patients' position in magnetic resonance device |
| JP2009000398A (en) * | 2007-06-25 | 2009-01-08 | Hitachi Medical Corp | Magnetic resonance imaging system |
| JP2009165728A (en) * | 2008-01-18 | 2009-07-30 | Ge Medical Systems Global Technology Co Llc | Magnetic resonance imaging system |
| CN201384493Y (en) * | 2009-03-12 | 2010-01-20 | 西门子迈迪特(深圳)磁共振有限公司 | Positioning device used for magnetic resonance system |
| CN101887108A (en) * | 2009-05-13 | 2010-11-17 | 西门子公司 | The position of body matrix coils is determined in the magnetic resonance equipment |
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2012
- 2012-05-15 CN CN201210153118.9A patent/CN103417213B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5066915A (en) * | 1989-06-28 | 1991-11-19 | Siemens-Asahi Medical System, Ltd. | RF coil positioning device for MRI |
| US20030204136A1 (en) * | 2002-04-25 | 2003-10-30 | Fonar Corporation | Magnetic resonance imaging fixture mounting |
| JP2004201977A (en) * | 2002-12-25 | 2004-07-22 | Ge Medical Systems Global Technology Co Llc | Mri apparatus |
| JP2004202143A (en) * | 2002-12-26 | 2004-07-22 | Ge Medical Systems Global Technology Co Llc | Magnetic resonance imaging instrument |
| CN1816753A (en) * | 2003-06-30 | 2006-08-09 | 皇家飞利浦电子股份有限公司 | Table position sensing for magnetic resonance imaging |
| CN1853583A (en) * | 2005-04-20 | 2006-11-01 | 西门子公司 | Method for determining patients' position in magnetic resonance device |
| JP2009000398A (en) * | 2007-06-25 | 2009-01-08 | Hitachi Medical Corp | Magnetic resonance imaging system |
| JP2009165728A (en) * | 2008-01-18 | 2009-07-30 | Ge Medical Systems Global Technology Co Llc | Magnetic resonance imaging system |
| CN201384493Y (en) * | 2009-03-12 | 2010-01-20 | 西门子迈迪特(深圳)磁共振有限公司 | Positioning device used for magnetic resonance system |
| CN101887108A (en) * | 2009-05-13 | 2010-11-17 | 西门子公司 | The position of body matrix coils is determined in the magnetic resonance equipment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110286343A (en) * | 2019-07-10 | 2019-09-27 | 苏州众志医疗科技有限公司 | A kind of magnetic resonance radio frequency receiving coil and post processing of image method |
| CN110286343B (en) * | 2019-07-10 | 2021-06-25 | 苏州众志医疗科技有限公司 | Magnetic resonance radio frequency receiving coil and image post-processing method |
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| CN103417213B (en) | 2015-09-02 |
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Address after: 201815 Shanghai city Jiading Industrial Zone No. 1180 Building 8 Xing Xian Lu Patentee after: Shanghai Lianying Medical Technology Co., Ltd Address before: 201815 Shanghai city Jiading Industrial Zone No. 1180 Building 8 Xing Xian Lu Patentee before: SHANGHAI UNITED IMAGING HEALTHCARE Co.,Ltd. |
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Address after: 201807 2258 Chengbei Road, Jiading District, Shanghai Patentee after: Shanghai Lianying Medical Technology Co.,Ltd. Address before: Building 8, 1180 Xingxian Road, Jiading Industrial Zone, Shanghai, 201815 Patentee before: Shanghai Lianying Medical Technology Co.,Ltd. |
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