EP-4740916-A1 - CONJUNCTIVAL MARKER AND MARKING DEVICE INCLUDING SAME

EP4740916A1EP 4740916 A1EP4740916 A1EP 4740916A1EP-4740916-A1

Abstract

The present invention provides a conjunctival marker and a marking device including the same. The marking device according to one embodiment comprises a body and a marking portion coupled to the body, wherein the marking portion includes a plurality of markers in contact an eyeball, wherein the length of any one of the plurality of markers may be different from the length of at least another one of the plurality of markers.

Inventors

WOO, SE JOON

Assignees

Seoul National University Hospital

Dates

Publication Date: 20260513
Application Date: 20240702

Claims (11)

A marking device comprising: a body; and a marking portion coupled to the body, wherein the marking portion includes a plurality of markers that contact the eyeball, and the length of any one of the plurality of markers is different from the length of at least one other marker among the plurality of markers.
The marking device of claim 1, wherein the marking portion includes a first marker, a second marker, and a third marker arranged to be spaced apart from each other at a predetermined distance, and the distances from the center of the body to the first marker, the second marker, and the third marker are each different.
The marking device of claim 2, wherein the distance between the first marker and the second marker is the same as the distance between the second marker and the third marker.
The marking device of claim 2, wherein the first marker is positioned closer to the center of the body than the second marker, and the second marker is positioned closer to the center of the body than the third marker.
The marking device of claim 4, wherein the length of the first marker is shorter than the length of the second marker, and the length of the second marker is the same as the length of the third marker.
The marking device of claim 4, wherein the length of the first marker is shorter than the length of the second marker, and the length of the second marker is shorter than the length of the third marker.
The marking device of claim 2, wherein the body has a ring shape, the marking portion further includes a protruding body protruding laterally from the body, the first marker protrudes downward from a lower end of the body, and the second marker and the third marker protrude downward from a lower end of the protruding body.
The marking device of claim 7, wherein the first marker and the second marker are each positioned on a first virtual line when viewed from above, the second marker and the third marker are each positioned on a second virtual line perpendicular to the first virtual line when viewed from above, and the first virtual line passes through the center of the body when viewed from above.
The marking device of claim 1, wherein the marking portion includes a first marking portion and a second marking portion, and each of the first marking portion and the second marking portion includes a plurality of markers, and the first marking portion and the second marking portion have a symmetrical structure with respect to the body.
The marking device of claim 1, wherein the marker has an end formed in a round shape.
The marking device of any one of claims 1 to 10, wherein the device is configured for use in surgeries involving markings on the eyeball, including fixation of an intraocular lens within the sclera.

Description

[Technical Field] The present invention relates to a conjunctival marker and a marking device including the same, and more particularly, to a conjunctival marker and a marking device including the same for indicating a point at which an injection needle is inserted or withdrawn in a fixation technique for fixing a portion of an intraocular lens within the sclera. [CROSS-REFERENCE TO RELATED APPLICATION] This application claims priority to and the benefit of Korean Patent Application No. 10-2023-0085643, filed on July 3, 2023, the disclosure of which is incorporated herein by reference in its entirety. [Background Art] When a patient develops an ocular disease such as a cataract, a surgery is performed to insert an intraocular lens into the eyeball. When the intraocular lens is dislocated in the eyeball of a patient with an inserted intraocular lens, intrascleral intraocular lens fixation (flanged intrascleral intraocular lens fixation with double-needle technique) is required, which involves fixing a portion of the intraocular lens (e.g., the haptic) within the sclera. In the intrascleral intraocular lens fixation, positioning the intraocular lens accurately in the sclera is critical. In addition, in the intrascleral intraocular lens fixation, it is important to firmly fix the haptic (hereinafter, for convenience, collectively referred to as the intraocular lens), which is a portion of the intraocular lens into the sclera. An intraocular lens is intrasclerally fixed by a fixation device (e.g., surgical thread). This fixation device employs an injection needle to intrasclerally secure the intraocular lens. During this process, the injection needle must be accurately inserted and withdrawn at specific points on the conjunctiva. Specifically, in the intrascleral intraocular lens fixation, the injection needle must be accurately inserted and withdrawn at six specific points on the conjunctiva. When intrascleral intraocular lens fixation is performed after marking a plurality of specific points where the injection needle is inserted and withdrawn using measuring tools such as a protractor or ruler, the surgical time significantly increases. Furthermore, when measuring tools such as a protractor or ruler are used, the specific points where the injection needle is inserted and withdrawn may be marked inaccurately, preventing the intraocular lens from being fixed at the correct position. In addition, when marking specific points using measuring tools, the eyeball may not be fixed and may continue to move, preventing accurate marking of the desired points. This problem is exacerbated by the fact that minimizing eyeball movement is very difficult for the patient to achieve voluntarily. Furthermore, when marking specific points using measuring tools, the patient's eyeball may be damaged during contact between the measuring tools and the marking device that marks the specific points, resulting in secondary damage. [Disclosure] [Technical Problem] One object of the present invention is to provide a marker that enables efficient surgery and a marking device including the same. In addition, another object of the present invention is to provide a marker that allows for accurately marking a specific point on an eyeball requiring surgery and a marking device including the same. In addition, still another object of the present invention is to provide a marker that allows for simultaneously marking specific points on an eyeball requiring surgery and a marking device including the same, minimizing the time required for surgery. The technical problems to be solved by the present invention are not limited to the above-described problems, and problems that are not mentioned will be clearly understood by those skilled in the art from the present specification and the accompanying drawings. [Technical Solution] The present invention provides a marking device including a body and a marking portion coupled to the body. The marking devices according to one embodiment may include a marking device including a body and a marking portion coupled to the body, and the marking portion may include a plurality of markers that contact the eyeball, and the length of any one of the plurality of markers may be different from the length of at least one other marker among the plurality of markers. According to one embodiment, the marking portion may include a first marker, a second marker, and a third marker arranged to be spaced apart from each other at a predetermined distance, and the distances from the center of the body to the first marker, the second marker, and the third marker may each be different. According to one embodiment, the distance between the first marker and the second marker may be the same as the distance between the second marker and the third marker. According to one embodiment, the first marker may be positioned closer to the center of the body than the second marker, and the second marker may be positioned closer to the cente