KR-102963569-B1 - TOOL FOR MARKING A CORNEAL

Abstract

The present invention relates to a corneal marking tool, characterized by comprising: a positioning disc having a circular ring shape, having a plurality of angle scales marked between an inner diameter portion and an outer diameter portion, and mounted on an eyeball such that the cornea is exposed through the inner diameter portion; and a pair of eyelid holders symmetrically arranged on the outer diameter portion of the positioning disc to support and retract the eyelid.

Inventors

• 나경선
• 김다란

Assignees

• 가톨릭대학교 산학협력단

Dates

Publication Date

20260511

Application Date

20240307

Claims (9)

1. A positioning disk having a circular ring shape having an inner diameter portion and an outer diameter portion, wherein the inner diameter portion is positioned at the limbus along the circumference of the cornea so as to expose the cornea and is mounted on the eyeball, and a plurality of angle scales are marked between the inner diameter portion and the outer diameter portion; and It includes a pair of eyelid holders symmetrically arranged on the outer diameter of the positioning disc to support and pull the eyelid, and The eyelid holder has a certain length and width and includes a mounting portion that is formed to protrude from the outer diameter portion of the positioning disc and mounts the lower portion of the eyelid that contacts the cornea spaced apart from the cornea. A corneal marking tool further comprising a pad provided on the surface of the mounting portion contacted by the eyelid, which prevents the eyelid holder from moving due to the movement of the eyelid mounted on the eyelid holder.
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4. In paragraph 1, The above eyelid holder is, A corneal marking tool comprising a cover portion that is formed protruding from the outer diameter portion of the positioning disk at a distance from the mounting portion, forming a receiving portion that accommodates the eyelid between the mounting portion and the covering portion, and further comprising a cover portion that covers the upper portion of the eyelid.
5. In paragraph 4, A corneal marking tool, wherein the pad is provided on the surface of the cover portion that contacts the eyelid, and prevents the eyelid holder from moving due to the movement of the eyelid mounted on the eyelid holder.
6. In paragraph 1, A corneal marking tool further comprising a positioning disc supported on one side of the outer diameter portion of the positioning disc with the pair of eyelid holders in between, and a working handle for operating the positioning disc and the pair of eyelid holders.
7. In paragraph 6, The above-described operating handle is a corneal marking tool positioned at a certain angle upward with respect to the plane of the above-described positioning disk.
8. In paragraph 1, A corneal marking tool having an inner diameter of 11.0 to 11.5 mm and an outer diameter of 14.0 to 15.5 mm of the positioning disc.
9. In paragraph 1, A corneal marking tool having a pair of eyelid holders with a length of 5 to 8 mm.

Description

Tool for Marking a Corneal The present invention relates to a tool for marking the cornea. Conventionally, before starting cataract surgery, the patient's eye is opened with a separate speculum to fully expose the cornea, and then a Mendez Mearsuring Ring, also known as a toric scale, is placed on the eyeball along the corneal boundary, and the axis for inserting the astigmatism-correcting intraocular lens is marked on the cornea with a marker pen. However, in this process, if the patient's eye is small, a situation may arise where the entire cornea is not exposed with the eyelid speculum, making it difficult to push the Mendez measuring ring into the eyelid and position it perfectly aligned with the corneal boundary. Therefore, in such cases, a separate eyelid expander can be used to further widen the eyelid; however, there is a problem in that multiple instruments collide with the small eye, making it difficult to indicate the precise angle. In addition, even when the diameter of the cornea is small, a gap forms between the corneal boundary and the Mendez measuring ring, making it difficult to indicate the accurate angle. Particularly in the case of Asians, the gap between the upper and lower eyelids is often narrow or the corneal diameter is small, which presents a problem in that the corneal marking process is inconvenient. Accordingly, the applicant has developed a corneal marking tool that incorporates a specific structure of an eyepiece into a Mendez measuring ring, thereby resolving the situation where the entire cornea of a patient with small eyes is not exposed during corneal marking, improving the accuracy of the marking, and shortening the marking time. FIG. 1 is a perspective view of a corneal marking tool according to one embodiment of the present invention, FIG. 2 is a left side view of FIG. 1, FIG. 3 is a drawing showing a state in which a corneal marking tool according to one embodiment of the present invention is mounted on an eyeball. FIG. 4 is a perspective view of a corneal marking tool according to another embodiment of the present invention. The advantages and features of the present invention and the methods for achieving them will become clear by referring to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below but can be implemented in various different forms; these embodiments are provided merely 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. The terms used in this specification are for describing embodiments and are not intended to limit the invention. In this specification, the singular form includes the plural form unless specifically stated otherwise in the text. The terms "comprises" and/or "comprising" used in this specification do not exclude the presence or addition of one or more other components in addition to the components mentioned. Throughout the specification, the same reference numerals refer to the same components, and "and/or" includes each of the mentioned components and all combinations of one or more. Although terms such as "first," "second," etc., are used to describe various components, these components are not limited by these terms. These terms are used merely to distinguish one component from another. Therefore, the first component mentioned below may be the second component within the technical scope of the invention. Unless otherwise defined, all terms used herein (including technical and scientific terms) may be used in a meaning commonly understood by those skilled in the art to which the present invention pertains. Additionally, terms defined in commonly used dictionaries are not to be interpreted ideally or excessively unless explicitly and specifically defined otherwise. The present invention will be described in detail below with reference to the attached drawings. Before proceeding with the explanation, in various embodiments, components having the same configuration are represented by the same reference numerals and described in one representative embodiment, while in other embodiments, configurations different from one embodiment are described. FIGS. 1 and FIGS. 2 illustrate a corneal marking tool according to one embodiment of the present invention. As illustrated in these drawings, a corneal marking tool (1a) according to one embodiment of the present invention comprises a positioning disk (10) and a pair of eyelid holders (30a, 30b). The positioning disk (10) has a ring shape with a circular cross-section, for example, a disc shape with a certain thickness. The positioning disc (10) has an inner diameter portion (11) and an outer diameter portion (15), and the inner diameter portion (11) and the outer diameter portion (15) are concentric. The positioning disc (10) is mounted on the eyeball (100, see FIG. 3) so that the cornea (110