CN200950188Y - Optometry glasses dedicated for magnetic resonance inspection chamber - Google Patents
Optometry glasses dedicated for magnetic resonance inspection chamber Download PDFInfo
- Publication number
- CN200950188Y CN200950188Y CN 200620138434 CN200620138434U CN200950188Y CN 200950188 Y CN200950188 Y CN 200950188Y CN 200620138434 CN200620138434 CN 200620138434 CN 200620138434 U CN200620138434 U CN 200620138434U CN 200950188 Y CN200950188 Y CN 200950188Y
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- magnetic resonance
- eyeglass
- spectacle
- tested person
- mirror
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Abstract
The utility model discloses a pair of optometry spectacles specially designed for a magnetic resonance inspection chamber, comprising a spectacle frame and eyeglass; two spectacle cells are provided on the spectacle frame, and one side of either spectacle cell away from the tested person is provided with an eyeglass slot; the spectacle frame is made of non-magnetic material; on the spectacle cells on one side facing towards the tested person, rubber sealing rings matching the spectacle cells are arranged respectively, and one side of each rubber sealing ring is connected to the corresponding cell. The utility model is not only applicable to magnetic resonance MRI environment, but also capable to adjust the eyesight of the tested person randomly, prevent the external light beams from shooting into the eyes of the tested person directly without running through the eyeglass. As a result, the imaging resolution of the retina of the tested person and the range of the visual information entering into the eyes are effectively controlled, as a result, a more accurate testing result is achieved.
Description
Technical field
The utility model belongs to medical instruments field, be specifically related to a kind of indoor at high-strength magnetic resonance examination, the special-purpose prescription glasses in magnetic resonance examination chamber that is used for functional MRI vision system research and checks.
Background technology
At present, functional MRI research that is applied to visual system disease and vision physiological and clinical practice more and more widely.In the existing inspection method of vision system, common visual chart inspection can only be checked eyeball, optic nerve and the visual cortex whole perception of affairs to external world, VEP can only be checked the nerve conduction ability of visual pathway, and functional MRI then can detect the relevant cortex of brain reaction capacity when observing things in cortex level.Particularly for the amblyopia patient, because its major lesions position is at visual cortex, utilize that the functional MRI technology can be carried out state of an illness evaluation to it, the state of an illness lapses to tracking, result of treatment analysis etc., thereby can disclose its change of illness state rule, estimate the validity of methods of treatment, and help to open its pathogenesis.Therefore, functional MRI being applied to the research of amblyopia and making great efforts that it is become routine clinical inspection item has become research topic in the industry.
Yet, at present when the patient being carried out the inspection of vision system functional MRI, generally wearing spectacles does not directly detect, but when person under inspection's crystalline lens is ametropia, can influence amphiblestroid imaging, and then reduce visual signal, thereby cause check result tangible deviation to occur to corticocerebral conduction.But, existing optometry mirror mainly is made up of plain metal mirror holder and conventional eyeglass, because metal can produce a large amount of pseudo-shadows in magnetic field, and the metal mirror holder danger may occur in addition, therefore, existing common optometry mirror is difficult to use in the inspection of functional MRI.And have bigger space between mirror holder and person under inspection's the eyes, and the existence in space has caused a large amount of light, directly enters those who are investigated's eyes without eyeglass, therefore, when checking like this, person under inspection's the visual field can't be controlled, and makes troubles for research and clinical examination.
The utility model content
At the deficiencies in the prior art, the purpose of this utility model is exactly that a kind of special-purpose prescription glasses in magnetic resonance examination chamber that can be applied to magnetic resonance environment and can arbitrarily control field range will be provided.
For achieving the above object, the utility model is the special-purpose prescription glasses in a kind of magnetic resonance examination chamber, comprise mirror holder and eyeglass, mirror holder is provided with two picture frames, have the eyeglass slot on the side of each picture frame away from the person under inspection, described mirror holder is made by nonmagnetic substance, on the framework of two described picture frames of examinate's one side, be respectively arranged with the latex sealing ring that is complementary with described picture frame, a wherein side of each latex sealing ring links to each other with its corresponding described framework.
Further, described eyeglass also comprises visual field control mirror, and the slot on this visual field control mirror and the described picture frame is complementary.
Compared with prior art, the special-purpose prescription glasses in a kind of magnetic resonance examination of the utility model chamber, not only can be applicable to magnetic resonance MRI environment, arbitrarily adjust examinate's eyesight, and avoid extraneous light directly to enter person under inspection's eyes without eyeglass, control effectively the person under inspection retina image-forming sharpness and enter the scope of the visual information of eyes, thereby obtain more accurately deciding assay.
Description of drawings
Fig. 1 is the front view of the special-purpose prescription glasses in the utility model magnetic resonance examination chamber;
Fig. 2 is the rear view of the special-purpose prescription glasses in the utility model magnetic resonance examination chamber.
Embodiment
Among Fig. 1 and 2, the special-purpose prescription glasses in magnetic resonance examination chamber comprises mirror holder 1 and eyeglass, be symmetrically arranged with two picture frames 2 on the mirror holder 1, an elastic straps 3 is installed on the side of two picture frames 2, be provided with the eyeglass slot on the outer surface of each picture frame 2, then be provided with the latex sealing ring 4 that is complementary with the picture frame framework on the framework of the inboard of picture frame 2, the wherein side framework 2 corresponding of each latex sealing ring 4 surperficial fixed with each other with it.The similar luntttes pattern of the profile of optometry mirror, when the person under inspection by band 4 with optometry mirror band during at head, one side of latex sealing ring 4 and person under inspection's face fit tightly together, thereby sealed space around picture frame 3 and person under inspection's the eye socket, guaranteed around the picture frame 3 and the complete closed between the person under inspection.
Eyeglass all adopts moulds the making of fat glass, except that a complete set of eyeglasses such as concave mirror (concave-sphere, post mirror) commonly used, convex lens (concave-sphere, post mirror), colour vision mirror, also comprises the visual field control mirror that can divide the different visuals field.The mirror holder 1 of optometry mirror is made by non-magnetic materials such as plastics or rubber or latexes, and the eyeglass slot on each picture frame 2 is three: from mirror holder 1 from inside to outside, and side slot 5, middle slot 6 and outer slots 7 in being respectively.Wherein, interior side slot 5 is used to place concave-sphere, and middle slot 6 is used to place the post mirror, and outer slots 7 is used to place visual field control mirror.Around middle slot 6, be provided with post mirror scale, be provided with visual field scale around the outer slots.Distance is about 1.5cm between center of interior side slot (center of lens) and the pupil, also is provided with the interpupillary distance scale between two picture frames 2.
The mirror holder 1 of the special-purpose prescription glasses in this magnetic resonance examination chamber adopts materials such as plastic cement, latex material to make fully, has guaranteed the nonmagnetic of prescription glasses.The latex sealing ring of making for soft latex material between mirror holder 1 and person under inspection's eye socket and the face 4, not only guaranteed around the picture frame 2 and the complete closed between the person under inspection, person under inspection's left and right two light path is separated fully, and do not have the interference of ambient light, be convenient to whole diopter, the visual field or covering fully that the doctor transfers person under inspection's left and right eyes respectively; And soft latex sealing ring 4, more comfortable when the person under inspection is worn.
In addition, the eyeglass of same type can freely be changed on same slot, and on interior side slot 5 and middle slot 6, the eyeglass of the different number of degrees of arranging in pairs or groups can freely be corrected examinate's eyesight.On outer slots 7, change different visual field control mirrors, can arbitrarily control examinate's the visual field.Thereby reach the purpose of in the high-field magnetic resonance environment, adjusting the eyesight and the control visual field.
During use, after those who are investigated enter magnetic resonance device, flat crouching on examination couch.The optometry mirror is worn on person under inspection's the head, adjusts its comfort level, and guarantee that picture frame and person under inspection's eye socket seals well on every side, not light leak.According to person under inspection's eyesight situation, at first in interior side slot, place suitable concave-sphere, in middle slot, place suitable post mirror then, and adjust its direction according to scale, obtain the eyesight of wanting.At last as required, go into visual field control mirror, and adjust the direction that mirror is controlled in the visual field, behind the visual field that obtains to want, can begin the inspection of functional MRI scanner uni according to scale in the outer slots interpolation.
Claims (2)
1, the special-purpose prescription glasses in a kind of magnetic resonance examination chamber, comprise mirror holder and eyeglass, mirror holder is provided with two picture frames, have the eyeglass slot on the side of each picture frame away from the person under inspection, it is characterized in that described mirror holder is made by nonmagnetic substance, on the framework of two described picture frames of examinate's one side, be respectively arranged with the latex sealing ring that is complementary with described picture frame, a wherein side of each latex sealing ring links to each other with its corresponding described framework.
2, the special-purpose prescription glasses in magnetic resonance examination chamber according to claim 1 is characterized in that described eyeglass also comprises visual field control mirror, and the slot on this visual field control mirror and the described picture frame is complementary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620138434 CN200950188Y (en) | 2006-08-31 | 2006-08-31 | Optometry glasses dedicated for magnetic resonance inspection chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620138434 CN200950188Y (en) | 2006-08-31 | 2006-08-31 | Optometry glasses dedicated for magnetic resonance inspection chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200950188Y true CN200950188Y (en) | 2007-09-19 |
Family
ID=38892730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620138434 Expired - Fee Related CN200950188Y (en) | 2006-08-31 | 2006-08-31 | Optometry glasses dedicated for magnetic resonance inspection chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200950188Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102841453A (en) * | 2012-08-07 | 2012-12-26 | 昆山大百科实验室设备工程有限公司 | Novel multifunctional glasses pen |
| CN106983642A (en) * | 2016-01-21 | 2017-07-28 | 陈柏衣 | Eye training device |
| CN111670404A (en) * | 2018-02-09 | 2020-09-15 | 三井化学株式会社 | Lens unit |
| CN112731687A (en) * | 2020-12-29 | 2021-04-30 | 重庆市视品光学眼镜有限公司 | Combined sunglasses lens structure convenient to mount |
-
2006
- 2006-08-31 CN CN 200620138434 patent/CN200950188Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102841453A (en) * | 2012-08-07 | 2012-12-26 | 昆山大百科实验室设备工程有限公司 | Novel multifunctional glasses pen |
| CN106983642A (en) * | 2016-01-21 | 2017-07-28 | 陈柏衣 | Eye training device |
| CN111670404A (en) * | 2018-02-09 | 2020-09-15 | 三井化学株式会社 | Lens unit |
| CN111670404B (en) * | 2018-02-09 | 2022-03-11 | 三井化学株式会社 | Lens unit for optometry and lens assembly for optometry |
| CN112731687A (en) * | 2020-12-29 | 2021-04-30 | 重庆市视品光学眼镜有限公司 | Combined sunglasses lens structure convenient to mount |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070919 Termination date: 20120831 |