CN103584862B - Functional mri feedback device and use the functional mri feedback system of this device - Google Patents
Functional mri feedback device and use the functional mri feedback system of this device Download PDFInfo
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- CN103584862B CN103584862B CN201210286740.7A CN201210286740A CN103584862B CN 103584862 B CN103584862 B CN 103584862B CN 201210286740 A CN201210286740 A CN 201210286740A CN 103584862 B CN103584862 B CN 103584862B
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Abstract
A kind of functional mri feedback device, comprises base, framework and pressure transducer; Described framework is arranged on described base, and described framework and described base form an accepting groove jointly; Described pressure transducer to be arranged on described base and to be contained in described accepting groove; Wherein, be filled with elastomeric material in described accepting groove, described elastomeric material covers described pressure transducer.In above-mentioned functions nuclear magnetic resonance feedback device, by pressure transducer the real time measure and feed back subjects finger stressed size is executed to functional mri feedback device, to obtain the evaluation of subjects to current stimulation.Relative to tradition many buttons feedback device, subjects only need rely on the pressure of the sensation regulating key of oneself, and does not select corresponding button, decreases the error rate of feedback information.
Description
Technical field
The present invention relates to sensing technology, particularly relate to a kind of functional mri feedback device and use the functional mri feedback system of this device.
Background technology
By the end of in May, 2010 whole world field intensity 3T magnetic resonance installation amount about 2600, by the end of the end of the year 2011, in state-owned more than 4000 MRI equipment, wherein field intensity 3T and above type are more than 200, and estimate the Future Ten year domestic 3T installation amount had every year more than 100, both major part high field MRI type clinical researches dual-purpose, scientific research aspect is mainly used in functional mri (FMRI, FunctionalMagneticResonanceImaging) research.
Functional mri is a kind of extremely important brain function research technology.The basic ideas of functional mri research are: subjects accepts certain particular stimulation (as visual stimulus, auditory stimulus, pain stimulation etc.), scan subjects's brain functional magnetic resonance imaging simultaneously and collect subjects's feedback information.Due to the particularity of magnetic resonance examination room strong magnetic field circumstance, so subjects marks, feedback device is particularly important.At present, scoring feedback system is button feedback mainly, and its basic ideas are that subjects holds key box, carry out feedback information by the opening and closing of limited several buttons.
Because subjects during scanning lies low, head can not move, and health requires to keep substantially motionless, mute and cannot see key box, can only rely on the sensation button of oneself, often there will be the situation pushed the wrong, cause feedback information to feed back inaccurate.
Summary of the invention
Based on this, be necessary to provide a kind of information feed back accurate functional mri feedback device.
A kind of functional mri feedback device, comprising:
Base;
Framework, is arranged on described base, and described framework and described base form an accepting groove jointly; And
Pressure transducer, to be arranged on described base and to be contained in described accepting groove;
Wherein, be filled with elastomeric material in described accepting groove, described elastomeric material covers described pressure transducer.
Wherein in an embodiment, described framework is the truncated cone-shaped framework of both ends open, and described framework comprises the second opening that the first opening and radial section radius are less than described first opening, and described first opening is arranged on described base.
Wherein in an embodiment, described framework is made of copper.
Wherein in an embodiment, entrance hole is offered in described framework side, for outer lead is introduced described accepting groove.
Wherein in an embodiment, described base is provided with annular projection, and the first opening and the described projection of described framework screw togather, and described framework is removably connected on described base.
Wherein in an embodiment, also comprise the analog-digital converter be connected with described pressure transducer communication, described analog-digital converter is contained in described accepting groove, is converted to digital signal for the analogue signal exported by described pressure transducer.
Wherein in an embodiment, described base is also provided with the electrical to optical converter be connected with described analog-digital converter communication, described electrical to optical converter is contained in described accepting groove, is converted to optical signal, and is sent by optical fiber for the digital signal exported by described analog-digital converter.
Wherein in an embodiment, described elastomeric material is silica gel, and the outer surface of described silica gel adopts film wrapped to get up.
Wherein in an embodiment, the notch of described accepting groove is also provided with rubber sacculus, and described rubber sacculus covers the notch of described accepting groove, and described elastomeric material and described rubber sacculus outer surface fit.
There is a need to provide a kind of functional mri feedback system.
A kind of functional mri feedback system, comprising:
Above-mentioned functional mri feedback device, for generation of feedback information; And
Processing module, is connected with the communication of described functional mri feedback device, for receiving and processing described feedback information.
Above-mentioned functions nuclear magnetic resonance feedback device and use in the functional mri feedback system of this device, by pressure transducer the real time measure and feed back subjects finger stressed size is executed to functional mri feedback device, to obtain the evaluation of subjects to current stimulation.Relative to tradition many buttons feedback device, subjects only need rely on the pressure of the sensation regulating key of oneself, and does not select corresponding button, decreases the error rate of feedback information.Meanwhile, because pressure value is continuous print, its subjects fed back is higher than the tradition many buttons feedback device only having fixing several button to select to the evaluation information degree of accuracy of current stimulation.
Accompanying drawing explanation
Fig. 1 is the structure chart of the functional mri feedback device of an embodiment;
Fig. 2 is the front view of the feedback device of functional mri shown in Fig. 1;
Fig. 3 is the top view of the feedback device of functional mri shown in Fig. 1;
Fig. 4 is the module map of the functional mri feedback system of an embodiment;
Fig. 5 is the concrete schematic diagram of the feedback system of functional mri shown in Fig. 4.
Detailed description of the invention
For the ease of understanding the present invention, below with reference to relevant drawings, the present invention is described more fully.Better embodiment of the present invention is given in accompanying drawing.But the present invention can realize in many different forms, is not limited to embodiment described herein.On the contrary, provide the object of these embodiments be make to disclosure of the present invention understand more thorough comprehensively.
It should be noted that, when element is called as " being fixed on " another element, directly can there is element placed in the middle in it on another element or also.When an element is considered to " connection " another element, it can be directly connected to another element or may there is centering elements simultaneously.Term as used herein " vertical ", " level ", "left", "right" and similar statement just for illustrative purposes, do not represent it is unique embodiment.
Unless otherwise defined, all technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present invention understand usually.The object of term used in the description of the invention herein just in order to describe concrete embodiment, is not intended to be restriction the present invention.Term as used herein " and/or " comprise arbitrary and all combinations of one or more relevant Listed Items.
Refer to Fig. 1, the functional mri feedback device 100 of the present embodiment, comprise base 110, framework 120 and pressure transducer 130.Framework 120 to be arranged on base on 110, and jointly forms accepting groove 140 with base 110.Pressure transducer 130 to be arranged on base 110 and to be contained in accepting groove 140.
Filling elastic material (not shown) in accepting groove 140, pressure transducer 130 covers by elastomeric material.When carrying out functional mri, impose stimulation to subjects, finger is placed on the elastomeric material of functional mri feedback device 100 by subjects, by the pressure to the different size of the applying of elastomeric material, represents himself evaluation to current stimulation.The pressure that elastomeric material is subject to is passed to pressure transducer 130, and pressure transducer 130 measures the pressure of current subjects finger to elastomeric material, and by the data Real-time Feedback of this pressure correlation.
Concrete elastomeric material is silica gel in the present embodiment, and silica gel adopts film wrapped to get up.Simultaneously, conveniently subjects's finger applies pressure to elastomeric material, the notch 142 of accepting groove 140 is also provided with rubber sacculus (not shown), rubber sacculus covers notch, elastomeric material and rubber sacculus outer surface fit, subjects's finger applies pressure to rubber sacculus, and the elastomeric material that pressure is fitted through rubber sacculus outer surface is passed to pressure transducer 130.Rubber sacculus is set at notch 142, subjects can be strengthened and squeeze feel by functional mri feedback device 100.
In above-mentioned functions nuclear magnetic resonance feedback device 100, by pressure transducer 130 the real time measure and feed back subjects finger stressed size is executed to functional mri feedback device 100, to obtain the evaluation of subjects to current stimulation.Relative to tradition many buttons feedback device, subjects only need rely on the pressure of the sensation regulating key of oneself, and does not select corresponding button, decreases the error rate of feedback information.Meanwhile, because pressure value is continuous print, its subjects fed back is higher than the tradition many buttons feedback device only having fixing several button to select to the evaluation information degree of accuracy of current stimulation.
Please again consult Fig. 1, functional mri feedback device 100 also comprises analog-digital converter 150 and electrical to optical converter 160.Analog-digital converter 150 and electrical to optical converter 160 are all arranged on base 110, and are contained in accepting groove 140.Analog-digital converter 150 is connected with pressure transducer 130 communication, and analog-digital converter 150 is converted to digital signal for the analogue signal exported by pressure transducer 130.Electrical to optical converter 160 is contained in accepting groove 140, is connected, is converted to optical signal, and is issued to the external world by optical fiber for the digital signal exported by analog-digital converter 150 with analog-digital converter 150 communication.
Because functional mri feedback device is positioned near magnetic resonance equipment, during work, magnetic resonance equipment can send the electromagnetic wave of some strength, and functional mri feedback device can be interfered.In order to meet the demand of magnetic compatibility, refer to Fig. 2 and Fig. 3, in functional mri feedback device 100, framework 120 is the truncated cone-shaped framework of both ends open, framework 120 comprises the second opening 124 that the first opening 122 and radial section radius are less than the first opening 122, first opening 122 is arranged on base 110, and framework 120 and base 110 form the accepting groove 140 of truncated cone-shaped jointly.Meanwhile, framework 120 can be made of copper.Make electromagnetic shielding in accepting groove 140, external electromagnetic waves cannot in accepting groove 140 as pressure transducer 130 has an impact.
Above-mentioned functions nuclear magnetic resonance feedback device 100, framework 120 is two ends truncated cone-shaped, and make accepting groove 140 more closed, effectiveness is better.Truncated cone-shaped framework 120 makes the notch of accepting groove 140 diminish simultaneously, forms less contact, facilitate subjects to use at functional mri feedback device 100.
Concrete, base 110 is provided with annular projection 170, and the first opening 122 of framework 120 is screwed with protruding 170, and framework 120 is removably connected on base 110.Multiple entrance hole 126 is offered in framework 120 side of truncated cone-shaped, for by outer lead, as optical fiber etc. is introduced in accepting groove 140.
It is pointed out that framework 120 also by modes such as bondings, can be arranged on base 110.Elastomeric material is not limited to silica gel, and that other also can be selected to have a magnetic compatibility has elastic material.
Meanwhile, a kind of functional mri feedback system using above-mentioned functions nuclear magnetic resonance feedback device 100 is also provided.Refer to Fig. 4, the functional mri feedback system of the present embodiment, comprise above-mentioned functions nuclear magnetic resonance feedback device 100 and processing module 200, processing module 200 is connected with nuclear magnetic resonance feedback device 100 communication.
The feedback information that processing module 200 sends for receiving also processing capacity nuclear magnetic resonance feedback device 100, see also Fig. 5, functional mri feedback device 100 is positioned over magnetic resonance imaging indoor, by optical fiber, signal is delivered to the processing module 200 of magnetic resonance imaging outdoor through electrical path.Processing module 200 comprises converting unit 210 and scoring unit 220.Converting unit 210 is carried out as the process such as opto-electronic conversion, level conversion according to demand for the signal sent by functional mri feedback device 100.Scoring unit 220 is connected with converting unit 210 communication, for receiving the converted signal of converting unit 210, row relax of going forward side by side, obtaining being applied to subjects the evaluation of estimate that pressure size on functional mri feedback device 100 is corresponding, and showing.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a functional mri feedback device, is characterized in that, comprising:
Base;
Framework, is arranged on described base, and described framework and described base form an accepting groove jointly; And
Pressure transducer, to be arranged on described base and to be contained in described accepting groove;
Wherein, be filled with elastomeric material in described accepting groove, described elastomeric material covers described pressure transducer; The pressure that described elastomeric material is subject to is passed to described pressure transducer, and described pressure transducer measures the pressure of current subjects finger to elastomeric material, and by the data Real-time Feedback of this pressure correlation.
2. functional mri feedback device according to claim 1, it is characterized in that, described framework is the truncated cone-shaped framework of both ends open, described framework comprises the second opening that the first opening and radial section radius are less than described first opening, and described first opening is arranged on described base.
3. functional mri feedback device according to claim 2, is characterized in that, described framework is made of copper.
4. functional mri feedback device according to claim 2, is characterized in that, entrance hole is offered in described framework side, for outer lead is introduced described accepting groove.
5. functional mri feedback device according to claim 2, is characterized in that, described base is provided with annular projection, and the first opening and the described projection of described framework screw togather, and described framework is removably connected on described base.
6. functional mri feedback device according to claim 1, it is characterized in that, also comprise the analog-digital converter be connected with described pressure transducer communication, described analog-digital converter is contained in described accepting groove, is converted to digital signal for the analogue signal exported by described pressure transducer.
7. functional mri feedback device according to claim 6, it is characterized in that, described base is also provided with the electrical to optical converter be connected with described analog-digital converter communication, described electrical to optical converter is contained in described accepting groove, digital signal for being exported by described analog-digital converter is converted to optical signal, and is sent by optical fiber.
8. functional mri feedback device according to claim 1, is characterized in that, described elastomeric material is silica gel, and the outer surface of described silica gel adopts film wrapped to get up.
9. functional mri feedback device according to claim 8, is characterized in that, the notch of described accepting groove is also provided with rubber sacculus, and described rubber sacculus covers the notch of described accepting groove, and described elastomeric material and described rubber sacculus outer surface fit.
10. a functional mri feedback system, is characterized in that, comprising:
Functional mri feedback device as described in any one of claim 1 to 9, for generation of feedback information; And
Processing module, is connected with the communication of described functional mri feedback device, for receiving and processing described feedback information.
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| CN201210286740.7A CN103584862B (en) | 2012-08-13 | 2012-08-13 | Functional mri feedback device and use the functional mri feedback system of this device |
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| CN107438403A (en) * | 2016-09-30 | 2017-12-05 | 深圳市美德医疗电子技术有限公司 | Feed back the feedback device under button and magnetic resonance environment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2862954Y (en) * | 2005-12-01 | 2007-01-31 | 中国中医研究院骨伤科研究所 | Instrument for quantitatively measuring human body pressing pain |
| CN101087555A (en) * | 2004-10-27 | 2007-12-12 | 罗伯特L·英格兰 | Objective determination of chronic pain in patients |
| CN102486427A (en) * | 2010-12-06 | 2012-06-06 | 飞思卡尔半导体公司 | Pressure sensor and packaging method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US9402558B2 (en) * | 2007-04-05 | 2016-08-02 | New York University | System and method for pain detection and computation of a pain quantification index |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101087555A (en) * | 2004-10-27 | 2007-12-12 | 罗伯特L·英格兰 | Objective determination of chronic pain in patients |
| CN2862954Y (en) * | 2005-12-01 | 2007-01-31 | 中国中医研究院骨伤科研究所 | Instrument for quantitatively measuring human body pressing pain |
| CN102486427A (en) * | 2010-12-06 | 2012-06-06 | 飞思卡尔半导体公司 | Pressure sensor and packaging method thereof |
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