CN103584862A - Functional magnetic resonance imaging feedback device and functional magnetic resonance imaging feedback system using same - Google Patents
Functional magnetic resonance imaging feedback device and functional magnetic resonance imaging feedback system using same Download PDFInfo
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- CN103584862A CN103584862A CN201210286740.7A CN201210286740A CN103584862A CN 103584862 A CN103584862 A CN 103584862A CN 201210286740 A CN201210286740 A CN 201210286740A CN 103584862 A CN103584862 A CN 103584862A
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Abstract
The invention discloses a functional magnetic resonance imaging feedback device. The functional magnetic resonance imaging feedback device comprises a base, a frame body and a pressure sensor, wherein the frame body is arranged on the base; the frame body and the base form a containing groove; the pressure sensor is arranged on the base and is contained in the containing groove; the containing groove is filled with an elastic material; the elastic material covers the pressure sensor. In the functional magnetic resonance imaging feedback device, the pressure sensor measures and feeds back a size of a pressure applied from a finger of a feedback testee to the functional magnetic resonance imaging feedback device in real time, so that evaluation of the testee for current stimulation is obtained. In comparison with a traditional multi-button feedback device, the testee can adjust a pressure of a button only by the virtue of feeling thereof rather than selecting a corresponding button, so that error rate of feedback information is reduced.
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 approximately 2600 of in May, 2010 whole world field intensity 3T magnetic resonance installation amounts, by the end of the end of the year 2011, in state-ownedly surpass 4000 MRI equipment, wherein field intensity 3T and above type are over 200, and 10 years domestic 3T installation amounts that have every year over 100 of future, most of the two dual-purpose of high field MRI type clinical research, scientific research aspect is mainly used in functional mri (FMRI, Functional Magnetic Resonance Imaging) 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.), scans subjects's brain functional magnetic resonance imaging simultaneously and collects subjects's feedback information.Due to the particularity of magnetic resonance examination chamber strong magnetic field circumstance, so subjects marks, feedback device is particularly important.At present, scoring feedback system is mainly button feedback, and its basic ideas are that subjects holds key box, and the switching by limited several buttons carrys out feedback information.
Due to when scanning, subjects lies low, and head can not move, and it is substantially motionless that health requires to keep, mute and cannot see key box, can only rely on own sensation button, often there will be the situation pushing the wrong, and causes feedback information to feed back inaccurate.
Summary of the invention
Based on this, be necessary to provide a kind of information to feed back accurate functional mri feedback device.
A feedback device, comprising:
Base;
Framework, is arranged on described base, the common accepting groove that forms of described framework and described base; And
Pressure transducer, is arranged on described base and is contained in described accepting groove;
Wherein, in described accepting groove, be filled with elastomeric material, described elastomeric material covers described pressure transducer.
Therein in an embodiment, the truncated cone-shaped framework that described framework is both ends open, described framework comprises that the first opening and radial section radius are less than the second opening of described the first opening, described the first opening is arranged on described base.
In an embodiment, described framework is made of copper therein.
In an embodiment, described framework is offered entrance hole on side therein, for outer lead being introduced to described accepting groove.
In an embodiment, described base is provided with annular projection therein, and the first opening and the described projection of described framework screw togather, and described framework is removably connected on described base.
In an embodiment, also comprise the analog-digital converter being connected with described pressure transducer communication therein, described analog-digital converter is contained in described accepting groove, for the analogue signal of described pressure transducer output is converted to digital signal.
Therein in an embodiment, on described base, be also provided with the electrical to optical converter being connected with described analog-digital converter communication, described electrical to optical converter is contained in described accepting groove, for the digital signal of described analog-digital converter output is converted to optical signal, and sends by optical fiber.
In an embodiment, described elastomeric material is silica gel therein, and the outer surface of described silica gel adopts film wrapped to get up.
In an embodiment, the notch of described accepting groove is also provided with rubber sacculus therein, and described rubber sacculus covers the notch of described accepting groove, and described elastomeric material and described rubber sacculus outer surface fit.
Also be necessary to provide a kind of functional mri feedback system.
A 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 process described feedback information.
Above-mentioned functions nuclear magnetic resonance feedback device and using in the functional mri feedback system of this device, by pressure transducer the real time measure and feed back the size that subjects finger is exerted pressure to functional mri feedback device, to obtain the evaluation of subjects to current stimulation.With respect to many buttons of tradition feedback device, subjects only need rely on the pressure of the sensation regulating key of oneself, and does not select corresponding button, has reduced the error rate of feedback information.Meanwhile, because pressure value is continuous, its subjects who feeds back is higher than many buttons of the tradition feedback device that only has fixing several buttons 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 functional mri feedback device shown in Fig. 1;
Fig. 3 is the top view of functional mri feedback device 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 functional mri feedback system shown in Fig. 4.
The specific embodiment
For the ease of understanding the present invention, below with reference to relevant drawings, the present invention is described more fully.In accompanying drawing, provided preferred embodiments of the present invention.But the present invention can realize in many different forms, be not limited to embodiment described herein.On the contrary, providing the object of these embodiments is make the disclosure of the present invention understand more comprehensively thorough.
It should be noted that, when element is called as " being fixed on " another element, can 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 have centering elements simultaneously.Term as used herein " vertical ", " level ", " left side ", " right side " and similar statement just for illustrative purposes, do not represent it is unique embodiment.
Unless otherwise defined, all technology of using are herein identical with the implication that belongs to the common understanding of those skilled in the art of the present invention with scientific terminology.The term using in description of the present invention herein, just in order to describe the object of concrete embodiment, is not intended to be restriction the present invention.Term as used herein " and/or " comprise one or more relevant Listed Items arbitrarily with all combinations.
Refer to Fig. 1, the functional mri feedback device 100 of the present embodiment, comprises base 110, framework 120 and pressure transducer 130.Framework 120 is arranged on base on 110, and with the common accepting groove 140 that forms of base 110.Pressure transducer 130 is arranged on base 110 and is contained in accepting groove 140.
The interior filling elastic material (not shown) of accepting groove 140, elastomeric material covers pressure transducer 130.When carrying out functional mri, subjects is imposed to stimulation, subjects is placed on finger the elastomeric material of functional mri feedback device 100, and the pressure that applies different sizes by 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 is measured the pressure of current subjects's finger to elastomeric material, and by the data Real-time Feedback of this pressure correlation.
Specifically in the present embodiment, elastomeric material is silica gel, and silica gel adopts film wrapped to get up.Simultaneously, in order to facilitate subjects to point, elastomeric material is exerted pressure, 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 is exerted pressure to rubber sacculus, and pressure is passed to pressure transducer 130 through the elastomeric material of rubber sacculus outer surface laminating.At notch 142, rubber sacculus is set, can strengthens subjects and squeeze by the feel of 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 the size that subjects finger is exerted pressure to functional mri feedback device 100, to obtain the evaluation of subjects to current stimulation.With respect to many buttons of tradition feedback device, subjects only need rely on the pressure of the sensation regulating key of oneself, and does not select corresponding button, has reduced the error rate of feedback information.Meanwhile, because pressure value is continuous, its subjects who feeds back is higher than many buttons of the tradition feedback device that only has fixing several buttons 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 communications, and analog-digital converter 150 is for being converted to digital signal by the analogue signal of pressure transducer 130 outputs.Electrical to optical converter 160 is contained in accepting groove 140, is connected with analog-digital converter 150 communications, for the digital signal of analog-digital converter 150 outputs is converted to optical signal, and is issued to the external world by optical fiber.
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, the truncated cone-shaped framework that framework 120 is both ends open, framework 120 comprises that the first opening 122 and radial section radius are less than the second opening 124 of the first opening 122, the first opening 122 is arranged on base 110, framework 120 and the common accepting groove 140 that forms truncated cone-shaped of base 110.Meanwhile, framework 120 can be made of copper.Make the interior electromagnetic shielding of accepting groove 140, external electromagnetic waves cannot in accepting groove 140 as pressure transducer 130 exerts an influence.
Above-mentioned functions nuclear magnetic resonance feedback device 100, framework 120 is two ends truncated cone-shaped, and accepting groove 140 is more sealed, effectiveness is better.Truncated cone-shaped framework 120 diminishes the notch of accepting groove 140 simultaneously, at functional mri feedback device 100, forms less contact, facilitates subjects to use.
Concrete, base 110 is provided with annular projection 170, and the first opening 122 and the projection 170 of framework 120 are screwed, and framework 120 is removably connected on base 110.On framework 120 sides of truncated cone-shaped, offer a plurality of entrance holes 126, for by outer lead, as optical fiber etc. is introduced in accepting groove 140.
It is pointed out that framework 120 also can, by the mode such as bonding, be arranged on base 110.Elastomeric material is not limited to silica gel, also can select other to have the elastic material of having of magnetic compatibility.
Meanwhile, also provide a kind of functional mri feedback system of using above-mentioned functions nuclear magnetic resonance feedback device 100.Refer to Fig. 4, the functional mri feedback system of the present embodiment, comprises above-mentioned functions nuclear magnetic resonance feedback device 100 and processing module 200, and processing module 200 is connected with 100 communications of nuclear magnetic resonance feedback device.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore 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, the common accepting groove that forms of described framework and described base; And
Pressure transducer, is arranged on described base and is contained in described accepting groove;
Wherein, in described accepting groove, be filled with elastomeric material, described elastomeric material covers described pressure transducer.
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 that the first opening and radial section radius are less than the second opening of described the first opening, and described the 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, described framework is offered entrance hole on side, for outer lead being introduced to 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 being connected with described pressure transducer communication, described analog-digital converter is contained in described accepting groove, for the analogue signal of described pressure transducer output is converted to digital signal.
7. functional mri feedback device according to claim 6, it is characterized in that, on described base, be also provided with the electrical to optical converter being connected with described analog-digital converter communication, described electrical to optical converter is contained in described accepting groove, for the digital signal of described analog-digital converter output is converted to optical signal, and send 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 claim 1 to 9 any one, for generation of feedback information; And
Processing module, is connected with the communication of described functional mri feedback device, for receiving and process 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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| 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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| CN103584862B CN103584862B (en) | 2015-11-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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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 |
| US20080249430A1 (en) * | 2007-04-05 | 2008-10-09 | Erwin Roy John | System and Method for Pain Detection and Computation of a Pain Quantification Index |
| 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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2012
- 2012-08-13 CN CN201210286740.7A patent/CN103584862B/en active Active
Patent Citations (4)
| 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 |
| US20080249430A1 (en) * | 2007-04-05 | 2008-10-09 | Erwin Roy John | System and Method for Pain Detection and Computation of a Pain Quantification Index |
| CN102486427A (en) * | 2010-12-06 | 2012-06-06 | 飞思卡尔半导体公司 | Pressure sensor and packaging method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2018058589A1 (en) * | 2016-09-30 | 2018-04-05 | 深圳市美德医疗电子技术有限公司 | Feedback key, and feedback device in magnetic resonance environment |
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| CN103584862B (en) | 2015-11-18 |
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