CN204521169U - A kind of limbus of corneae astigmatism telltale mark device - Google Patents
A kind of limbus of corneae astigmatism telltale mark device Download PDFInfo
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- CN204521169U CN204521169U CN201520191835.XU CN201520191835U CN204521169U CN 204521169 U CN204521169 U CN 204521169U CN 201520191835 U CN201520191835 U CN 201520191835U CN 204521169 U CN204521169 U CN 204521169U
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- marker
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- mark
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Abstract
The utility model discloses a kind of limbus of corneae astigmatism telltale mark device, it comprises torus and handle, and torus comprises lower surface and upper surface, and lower surface contact or laminating corneoscleral junction, upper surface is portrayed the graduation mark for labelling and scale value; Described upper surface is the curved surface that light can be made to divide scattered reflection.This utility model is by changing by the upper surface of marker as sub-light or frosted process into and can disperseing the curved surface of reflected light, make optically focused light during operation to reflecting everywhere, and be the eyes of direct irradiation doctor, make doctor more clearly can read scale value and implement operation.And by arranging multi-turn graduation mark, on slight torus, mark scale the most accurately as much as possible.
Description
Technical field
This utility model relates to a kind of axis of astigmatism labelling apparatus, is related specifically to a kind of for limbus of corneae astigmatism telltale mark device used during ophthalmic refractive corrective procedure.
Background technology
Carrying out correction of refractive errors class operation consent, doctor needs to determine that operative incision and final astigmatism artificial intraocular lenses correct axle position.But health by orthostatism in the change procedure of dorsal position, the eyeball of people can rotate, and the determined operation axle position when orthostatism can be caused thus to change in dorsal position.In order to can eye position in labelling exactly, need preoperatively to position labelling with special marking ink in relevant position at limbus of corneae, even if patient's changing position in art, doctor still can pass through gauge point accurate calibration surgery location.
Existing rectification crystalline mark device is the toroidal of rule, and marker upper surface is the plane after polishing, and indicates circular scale.V-type opening is offered, as labelling reference coordinates in the position of 0 degree and 180 degree.Is furnished with fixation mark ring in single handle Rhizoma Atractylodis Macrocephalae.
In art under microscope floodlighting, the upper surface after polishing is as mirror, and strong reflected light makes the dizzy concrete scale do not seen on marker of doctor's eyes, has a strong impact on normally carrying out of operation technique.
In addition, eyeball is spherical, and operation mostly is topical anesthesia at present, and single handle is fixing unstable, inconvenient accurately fixing eyeball.
Utility model content
For solving the problem, the purpose of this utility model is to provide a kind of limbus of corneae astigmatism telltale mark device, this marker be designed to upper and lower surface consistent and the arc-shaped curved surface that reflected light disperses can be made, thus can avoid in operation process, reflected light acute irradiation doctor eyes, impact operation normal operating.
For achieving the above object, disclosed in this utility model, a kind of limbus of corneae astigmatism telltale mark device comprises torus and handle, torus comprises lower surface and upper surface, and lower surface contact or laminating corneoscleral junction, upper surface is portrayed the graduation mark for labelling and scale value; Described upper surface is the curved surface that light can be made to divide scattered reflection.
Further, with regard to its cross section, described curved surface is the cambered surface that curvature is consistent.
Further, with regard to its cross section, described curved surface is the cambered surface of Curvature varying, or is the combination of several clinoplain.
Further, described curved surface is provided with multi-turn graduation mark, the graduation mark of each circle is crisscross arranged and then is separated by 360 degree of even circumferentials.
Further, if described multi-turn graduation mark is N circle, often enclose and be evenly provided with M graduation mark, the scale value that minimum readable goes out is 360/NM degree.
Further, described curved surface is provided with 2-3 and encloses graduation mark.
Further, described handle is the tinsel or the sheet metal that are symmetricly set on described toric both sides.
Further, described curved surface is the curved surface of frosted or sub-optical processing.
Further, described torus is respectively provided with a V-type opening at the scale place of 0 and 180.
Compared with prior art, this utility model is by changing by the upper surface of marker as sub-light or frosted process into and can disperseing the curved surface of reflected light, make optically focused light during operation to reflecting everywhere, and be the eyes of direct irradiation doctor, make doctor more clearly can read scale value and implement operation.And by arranging multi-turn graduation mark, on slight torus, mark scale the most accurately as much as possible.Present graduation mark usually can only labelling 1,2 ... 36, namely each scale value is 10 degree, by arranging two same circle graduation marks, then can realize by scale value precisely to 5 degree, the like.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view of marker in embodiment;
Fig. 2 is torus cross section view;
The structural representation of Fig. 3 to be upper surface be Curvature varying;
Fig. 4 is upper surface is the schematic diagram that clinoplain combines;
Fig. 5 is the schematic diagram of multi-turn graduation mark;
Fig. 6 is the handle schematic diagram of wire form in embodiment;
Fig. 7 is the handle schematic diagram of sheet metal form in embodiment.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described.
As illustrated in fig. 1 and 2, a kind of limbus of corneae astigmatism telltale mark device comprises torus 10 and handle 20, and handle 20 is for being symmetricly set on the elastic metallic yarn of the both sides of torus 10.Torus 10 comprises lower surface 11 and upper surface 15, and lower surface 11 is contact or laminating crystal arc-shaped curved surface, and the eyeglass curved surface of its radian and people is basically identical.Upper surface 15 is portrayed the graduation mark for labelling and scale value; Upper surface 15 is the curved surface that light can be made to divide scattered reflection.With regard to its cross section, this curved surface is the arc surface that curvature is consistent.
In addition, with regard to its cross section, as shown in Figure 3, curved surface 15a can also be the cambered surface of Curvature varying, or as shown in Figure 4, this curved surface 15b is the combination of two differing tilt angles planes.In addition, by this curved surface frosted or sub-optical processing being weakened further the reflection effect of upper surface.
As shown in Figure 5, two circle graduation marks are outside equipped with on curved surface 15, often enclose and be evenly provided with 36 graduation marks, namely each lattice represent 10 degree, the graduation mark of two circles is crisscross arranged and then 360 degree of even circumferentials is separated into 72 lattice, each lattice represent 5 degree, and namely by arranging two circle scales, the precision of this marker is doubled.Torus 10 is respectively provided with a V-type opening at the scale place of 0 and 180, is convenient to labelling coordinate.
By that analogy, suppose that graduation mark is N circle, often enclose and be evenly provided with M graduation mark, the scale value that minimum readable goes out is 360/NM degree.
In addition, handle can be the various forms being applicable to two fingerhold, and as shown in Figure 6, two handles 21 are made up of an one metal wire respectively, and its top is the fingerhold portion of annular, and bottom is drawn in gradually and welded together with torus 10 together.As shown in Figure 7, two handles 22 are respectively to be made up of sheet metal, and its top is fingerhold portion, and its underpart is narrowed gradually and welded together with torus 10.
Below only describe several preferred embodiments of the application by reference to the accompanying drawings, but the application is not limited thereto, every those of ordinary skill in the art are under the spirit not departing from the application, and any improvement made and/or distortion, all belong to the protection domain of the application.
Claims (9)
1. a limbus of corneae astigmatism telltale mark device, is characterized in that, it comprises torus and handle, and torus comprises lower surface and upper surface, and lower surface contact or laminating corneoscleral junction, upper surface is portrayed the graduation mark for labelling and scale value; Described upper surface is the curved surface that light can be made to divide scattered reflection.
2. marker as claimed in claim 1, it is characterized in that, with regard to its cross section, described curved surface is the arc surface that curvature is consistent.
3. marker as claimed in claim 1, it is characterized in that, with regard to its cross section, described curved surface is the cambered surface of Curvature varying, or is the combination of several clinoplain.
4. marker as claimed in claim 1, is characterized in that, described curved surface is provided with multi-turn graduation mark, and the graduation mark of each circle is crisscross arranged and then by 360 degree even circumferentials separations.
5. marker as claimed in claim 4, is characterized in that, if described multi-turn graduation mark is N circle, often enclose and be evenly provided with M graduation mark, the scale value that minimum readable goes out is 360/NM degree.
6. marker as claimed in claim 4, is characterized in that, described curved surface is provided with 2-3 and encloses graduation mark.
7. marker as claimed in claim 1, it is characterized in that, described handle is the tinsel or the sheet metal that are symmetricly set on described toric both sides.
8. marker as claimed in claim 1, it is characterized in that, described curved surface is the curved surface of frosted or sub-optical processing.
9. marker as claimed in claim 1, it is characterized in that, described torus is respectively provided with a V-type opening at the scale place of 0 and 180.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520191835.XU CN204521169U (en) | 2015-04-01 | 2015-04-01 | A kind of limbus of corneae astigmatism telltale mark device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520191835.XU CN204521169U (en) | 2015-04-01 | 2015-04-01 | A kind of limbus of corneae astigmatism telltale mark device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204521169U true CN204521169U (en) | 2015-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520191835.XU Active CN204521169U (en) | 2015-04-01 | 2015-04-01 | A kind of limbus of corneae astigmatism telltale mark device |
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| CN (1) | CN204521169U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112022501A (en) * | 2020-09-23 | 2020-12-04 | 中国人民解放军32298部队 | Mark appearance convenient to ophthalmic surgery uses |
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2015
- 2015-04-01 CN CN201520191835.XU patent/CN204521169U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112022501A (en) * | 2020-09-23 | 2020-12-04 | 中国人民解放军32298部队 | Mark appearance convenient to ophthalmic surgery uses |
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| GR01 | Patent grant |