Corneal marking tool

Abstract

The present invention relates to a corneal marking tool, comprising: a positioning disc having a circular ring shape, in which a plurality of angular graduations are marked between an inner circumferential portion and an outer circumferential portion, and which is mounted on an eyeball such that the cornea is exposed via the inner circumferential portion; and a pair of eyelid holders symmetrically provided at the outer circumferential portion of the positioning disc to support and retract an eyelid.

Description

Corneal marking tool

[0001] The present invention relates to a tool for corneal marking.

[0002] Traditionally, before starting cataract surgery, the patient's eyes are opened with a separate speculum to expose the entire cornea, and then the Mendez Mearsuring Ring, also known as a toric ruler, is placed on the eyeball, aligned with the border of the cornea, and the axis for inserting the astigmatic intraocular lens is marked on the cornea with a marker pen.

[0003] However, in this process, if the patient's eyes are small, the entire cornea may not be exposed with the eyelid speculum, and it is not easy to insert the Mendez measuring ring into the eyelid and align it completely with the corneal border.

[0004] Therefore, in these cases, a separate eyelid opening device can be used to further open the eyelids, but there is a problem in that several devices collide with the small eye, making it difficult to indicate an accurate angle.

[0005] Additionally, even when the diameter of the cornea is small, a gap may develop between the corneal border and the Mendez measurement ring, making it difficult to indicate an accurate angle.

[0006] Especially in the case of Asians, the space between the upper and lower eyelids is often narrow or the diameter of the cornea is small, which makes marking the cornea inconvenient.

[0007] Accordingly, the present applicant has developed a corneal marking tool that can resolve the situation in which the entire cornea of ​​a patient with small eyes is not exposed during corneal marking, improve marking accuracy, and shorten marking time by grafting a speculum of a specific structure onto a Mendez measuring ring.

[0008] The present invention is intended to solve the above-mentioned problems, and an object of the present invention is to provide a corneal marking tool that can stably mark an accurate angle on the cornea regardless of the size of the eye and shorten the marking time.

[0009] The problems to be solved by the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below.

[0010] The object of the present invention can be achieved by a tool for marking the cornea, comprising: a positioning disk having a circular ring shape, a plurality of angular graduations marked between an inner and an outer periphery, and being placed on the eyeball so that the cornea is exposed through the inner periphery; and a pair of eyelid holders symmetrically provided on the outer periphery of the positioning disk to support and pull the eyelid.

[0011] Here, the eyelid holder may include a holding portion having a predetermined length and width and protruding from the outer diameter of the positioning disk to hold the lower part of the eyelid in contact with the cornea away from the cornea.

[0012] In addition, a pad may be further included on the surface of the holder with which the eyelid comes into contact, to prevent the eyelid holder from moving due to movement of the eyelid mounted on the eyelid holder.

[0013] The above eyelid holder may further include a cover portion that protrudes from the outer diameter of the positioning disk at a distance from the mounting portion to form a receiving portion for receiving the eyelid between the mounting portion and the eyelid, and covers an upper portion of the eyelid.

[0014] The above-mentioned eyelid holder may further include a pad provided on the surface of the mounting portion and the cover portion that the eyelid comes into contact with, to prevent the eyelid holder from moving due to movement of the eyelid mounted on the eyelid holder.

[0015] The device may further include an operating handle for operating the positioning disk and the pair of eyelid holders, supported on one side of the outer diameter of the positioning disk with the pair of eyelid holders interposed therebetween.

[0016] The above-mentioned operating handle can be positioned at a certain angle upward with respect to the plane of the positioning disk.

[0017] The inner diameter of the above positioning disc may be 11.0 to 11.5 mm, and the outer diameter may be 14.0 to 15.5 mm.

[0018] The length of the pair of eyelid holders may be 5 to 8 mm.

[0019] According to the present invention, it is possible to stably mark an accurate angle on the cornea regardless of the size of the eye, and the marking time can also be shortened.

[0020] The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description below.

[0021] Figure 1 is a perspective view of a corneal marking tool according to one embodiment of the present invention;

[0022] Figure 2 is a left side view of Figure 1;

[0023] FIG. 3 is a drawing showing a state in which a corneal marking tool according to one embodiment of the present invention is placed on an eye.

[0024] FIG. 4 is a perspective view of a corneal marking tool according to another embodiment of the present invention.

[0025] The advantages and features of the present invention, and the methods for achieving them, will become clearer with reference to the embodiments described in detail below, along with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and may be implemented in various different forms. These embodiments are provided solely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the present invention.

[0026] The terminology used herein is for the purpose of describing embodiments only and is not intended to limit the present invention. In this specification, the singular also includes the plural unless specifically stated otherwise. As used herein, the terms "comprises" and / or "comprising" do not exclude the presence or addition of one or more other components in addition to the mentioned components. Like reference numerals refer to like components throughout the specification, and "and / or" includes each and any combination of one or more of the mentioned components. Although "first", "second", etc. are used to describe various components, these components are not limited by these terms. These terms are only used to distinguish one component from another. Therefore, it should be understood that a first component mentioned below may also be a second component within the technical spirit of the present invention.

[0027] Unless otherwise defined, all terms (including technical and scientific terms) used herein may be used in their common sense to those of ordinary skill in the art to which the present invention pertains. Furthermore, terms defined in commonly used dictionaries are not to be interpreted ideally or excessively unless explicitly and specifically defined otherwise.

[0028] Hereinafter, the present invention will be described in detail with reference to the attached drawings.

[0029] Before the explanation, in several embodiments, components having the same configuration will be described representatively in one embodiment using the same reference numerals, and in other embodiments, components having a different configuration from the one embodiment will be described.

[0030] FIGS. 1 and 2 illustrate a corneal marking tool according to one embodiment of the present invention.

[0031] As shown in these drawings, a corneal marking tool (1a) according to one embodiment of the present invention includes a positioning disk (10) and a pair of eyelid holders (30a, 30b).

[0032] The positioning disk (10) has a ring shape with a circular cross-section, for example, a disk shape with a certain thickness.

[0033] The positioning disc (10) has an inner diameter (11) and an outer diameter (15), and the inner diameter (11) and the outer diameter (15) are concentric.

[0034] The positioning disk (10) is placed on the eyeball (100, see Fig. 3) so that the cornea (110, see Fig. 3) is exposed through the inner part (11).

[0035] For example, the inner part (11) of the positioning disk (10) is positioned along the circumference of the cornea (110), and the outer part (15) is positioned at the limbus located around the cornea (110).

[0036] Here, the diameter of the inner diameter (11) of the positioning disk (10) may be 11.0 to 11.5 mm, and the diameter of the outer diameter (15) may be 14.0 to 15.5 mm.

[0037] Meanwhile, a plurality of angle scales (21) and corresponding numerical values ​​are indicated between the inner diameter (11) and the outer diameter (15).

[0038] In this way, by displaying multiple angle scales (21) on the positioning disk (10), the accuracy of the angle for marking can be obtained, enabling precise marking on the cornea (110).

[0039] A pair of eyelid holders (30a, 30b) have the function of expanding and pulling the upper eyelid (120, see FIG. 3) and the lower eyelid (130, see FIG. 3) when marking the cornea, thereby sufficiently exposing the corneal tissue of the eyeball (100).

[0040] The eyelid holder (30a, 30b) of the corneal marking tool (1a) according to one embodiment of the present invention includes a holding portion (31) and a cover portion (35).

[0041] The mounting portion (31) has a certain length and width and is formed to protrude in an arc shape from the outer diameter portion (15).

[0042] In this mounting portion (31), the lower part of the eyelid (120, 130) that comes into contact with the cornea (110) is mounted away from the cornea (110).

[0043] The cover part (35) has a shape symmetrical to the mounting part (31), and is formed to protrude in an arc shape from the outer diameter part (15) at a distance from the mounting part (31).

[0044] The cover part (35) covers the upper part of the eyelid (120, 130) and forms a receiving part (41) that receives the eyelid (120, 130) between the support part (31).

[0045] Here, the length of the eyelid holder (30a, 30b) can be 5 to 8 mm.

[0046] Meanwhile, on the inner side of the eyelid holder (30a, 30b), for example, a pad (45) may be provided on the surface of the mounting portion (31) and the cover portion (35) with which the eyelid (120, 130) comes into contact.

[0047] The pad (45) can be made of a silicone material that is harmless to the human body.

[0048] The pad (145) prevents the eyelid holder (30a, 30b) from moving due to an action of pressing the eyelid or trying to close the eyelid, for example, when the eyelid (120, 130) is placed and covered on the mounting portion (31) and the covering portion (35), thereby enabling the positioning disk (10) to be placed more stably on the cornea (110).

[0049] In this way, by arranging the eyelid holders (30a, 30b) to protrude in the outer radial direction of the positioning disk (10), when the corneal marking tool (1a) according to the present invention is placed on the eyeball (100), the upper eyelid (120) and the lower eyelid (130) are each maintained in a state of being pulled by the eyelid holders (30a, 30b) so as not to cover the cornea (110), thereby enabling stable marking on the cornea (110).

[0050] In addition, the corneal marking tool (1a) according to one embodiment of the present invention further includes an operating handle (50).

[0051] The operating handle (50) has a rod shape of a certain length so that it can be gripped.

[0052] One end of the operating handle (50) is supported on one side of the outer diameter (15) of the positioning disk (10) with a pair of eyelid holders (30a, 30b) between them.

[0053] In addition, the operating handle (50) is positioned at a certain angle upward with respect to the plane of the positioning disk (10), for example, it is positioned at a certain angle upward with respect to the surface on which the angle scale (21) of the positioning disk (10) is indicated.

[0054] Accordingly, by holding the operating handle (50), hand manipulation becomes more convenient when marking the cornea (110) using the corneal marking tool (1a) according to one embodiment of the present invention, thereby enabling simpler surgery.

[0055] By this configuration, as an example, in the case of performing astigmatism correction cataract surgery, while holding the operating handle (50) of the corneal marking tool (1a) according to one embodiment of the present invention, the upper eyelid (120) and the lower eyelid (130) are each accommodated in the accommodation portion (41) of the eyelid holder (30a, 30b), and the positioning disk (10) is placed on the eyeball (100) so that the cornea (110) to be marked is positioned on the inner cervical portion (11) of the positioning disk (10) and exposed.

[0056] At this time, as illustrated in FIG. 3, a pair of eyelid holders (30a, 30b) of a corneal marking tool (1a) placed on the eyeball (100) prevent the upper eyelid (120) and the lower eyelid (130) accommodated in the eyelid holders (30a, 30b) from flowing down toward the cornea (110), and thus, the surgeon can mark the axis for inserting the astigmatism-correcting artificial lens on the cornea (110) with a marker pen using the angle scale (21) indicated on the positioning disk (10).

[0057] This makes it possible to stably mark an accurate angle on the cornea (110) regardless of the size of the eye, and also shorten the marking time.

[0058] Meanwhile, FIG. 4 illustrates a corneal marking tool according to another embodiment of the present invention.

[0059] A corneal marking tool (1b) according to another embodiment of the present invention has a different structure of a pair of eyelid holders than the aforementioned embodiment.

[0060] The eyelid holder (30a', 30b') of the corneal marking tool (1b) according to another embodiment of the present invention does not include a cover.

[0061] Accordingly, in the case of performing astigmatism correction cataract surgery, for example, using the corneal marking tool (1b) according to another embodiment of the present invention as described in the above-described embodiment, while holding the operating handle (50) of the corneal marking tool according to another embodiment of the present invention, the upper eyelid and the lower eyelid are each placed on the placement portion (31) of the eyelid holder (30a', 30b'), and the positioning disk (10) is placed on the eyeball so that the cornea to be marked is positioned on the inner cervical portion (11) of the positioning disk (10) and exposed.

[0062] At this time, a pair of eyelid holders (30a', 30b') of a corneal marking tool (1b) placed on the eyeball prevent the upper and lower eyelids placed on the mounting portions (31) of the eyelid holders (30a', 30b') from flowing down toward the cornea, and thus, the surgeon can mark the axis for inserting the astigmatism-correcting artificial lens on the cornea with a marker pen using the angle scale (21) indicated on the positioning disk (10).

[0063] In this way, according to the present invention, it is possible to stably mark an accurate angle on the cornea regardless of the size of the eye, and the marking time can also be shortened.

[0064] While the embodiments of the present invention have been described above with reference to the attached drawings, those skilled in the art will appreciate that the present invention can be implemented in other specific forms without altering the technical spirit or essential features thereof. Therefore, the embodiments described above should be understood to be illustrative in all respects and not restrictive.

Claims

1. A positioning disk having a circular ring shape, with multiple angle scales marked between the inner and outer periphery, and placed on the eyeball so that the cornea is exposed through the inner periphery; and A tool for marking the cornea, comprising a pair of eyelid holders symmetrically provided on the outer diameter of the positioning disk to support and pull the eyelid.

2. In paragraph 1, The above eyelid holder, A tool for marking the cornea, comprising a mounting portion having a predetermined length and width and protruding from the outer diameter of the positioning disk to position the lower part of the eyelid in contact with the cornea away from the cornea.

3. In paragraph 2, A tool for marking the cornea, further comprising a pad provided on the surface of the holder with which the eyelid comes into contact, to prevent the eyelid holder from moving due to movement of the eyelid mounted on the eyelid holder.

4. In paragraph 2, The above eyelid holder, A tool for marking the cornea, comprising a cover portion that forms a receiving portion that receives the eyelid between the receiving portion and the positioning disk and protrudes from the outer diameter portion at a distance from the receiving portion, and covers the upper portion of the eyelid.

5. In paragraph 4, A tool for marking the cornea, further comprising a pad provided on the surface of the holder and the cover portion with which the eyelid comes into contact, to prevent the eyelid holder from moving due to movement of the eyelid mounted on the eyelid holder.

6. In paragraph 1, A tool for marking the cornea, further comprising an operating handle for operating the positioning disk and the pair of eyelid holders, the operating handle being supported on one side of the outer diameter of the positioning disk with the pair of eyelid holders interposed therebetween.

7. In paragraph 6, A tool for marking the cornea, wherein the above-mentioned operating handle is positioned at a certain angle upward with respect to the plane of the above-mentioned positioning disk.

8. In paragraph 1, A tool for marking the cornea, wherein the inner diameter of the positioning disk is 11.0 to 11.5 mm, and the outer diameter is 14.0 to 15.5 mm.

9. In paragraph 1, A tool for marking the cornea, wherein the length of the pair of eyelid holders is 5 to 8 mm.

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