Surgical scissors for incising the anterior lens capsule

The surgical scissors with intersecting cutting portions address the challenge of forming a circular incision in the anterior lens capsule, ensuring uniform contraction and preventing artificial lens misalignment.

JP7818739B2Active Publication Date: 2026-02-20パクヒョンジュ
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Patent Information

Application Number
JP2025517872
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2023-06-09
Filing Date
2024-05-14
Publication Date
2026-02-20
Estimated Expiration
2044-05-14

AI Technical Summary

Technical Problem

Conventional straight dissecting scissors struggle to incise the anterior lens capsule into a nearly circular shape due to the perpendicular alignment of incision direction and advancement direction, leading to uneven contraction and potential misalignment or deformation of the artificial lens.

Method used

Surgical scissors with first and second levers connected by a rotation shaft, featuring cutting portions that intersect the insertion direction, allowing for a transverse incision to form a circular opening in the anterior capsule.

Benefits of technology

Facilitates uniform contraction of the anterior capsule into a circle, preventing artificial lens misalignment and deformation by ensuring a circular incision.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The surgical scissors for incising the anterior capsule of a lens include first and second levers extending in the front-to-back direction and a rotating shaft rotatably connecting the first and second levers to each other. The first lever includes a first handle formed at a rear portion relative to the rotating shaft, a first non-cutting portion formed at a front portion relative to the rotating shaft and extending forward, and a first blade having a first cutting portion protruding from a front end of the first non-cutting portion in a direction transverse to the front-to-back and up-to-down directions. The second lever includes a second handle formed at a rear portion relative to the rotating shaft and separable downward from the first handle, and a second blade having a second non-cutting portion formed at a front portion relative to the rotating shaft and extending forward, and a second cutting portion protruding from a front end of the second non-cutting portion in a direction configured to abut against the first cutting portion.
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Description

[Technical Field]

[0001] The present disclosure relates to surgical scissors for incising the anterior capsule of the lens. [Background technology]

[0002] The transparent lens in the human eye plays an important role in focusing an image of an object. This transparent lens can become blurred due to aging, inflammation in the eye, or trauma. This can lead to cataracts, a type of eye disease. When cataracts progress to the point where they cause inconvenience in daily life, medications are no longer effective and surgery must be considered.

[0003] Cataract surgery involves drilling a small hole in the pupil or white of the eye, inserting an ultrasonic instrument to remove the cataractous lens, and then inserting a permanent artificial lens in its place. Specifically, the cornea is incised, a viscoelastic material of a predetermined viscosity is injected between the cornea and the lens, and a circular incision is made in the anterior capsule (the anterior part of the lens capsule) called a continuous curvilinear capsulorrhexis (CCC). During this process, the viscoelastic material is injected between the cornea and the lens, creating a predetermined space to facilitate the insertion of surgical tools and an artificial lens. The cataractous lens is then aspirated using ultrasound while the viscoelastic material is injected through the incision in the anterior capsule. During this process, the viscoelastic material prevents the lens capsule from shrinking due to lack of fluid after the anterior capsule incision and maintains the capsule's shape. The intraocular lens is then inserted and attached to the capsular bag, and the viscoelastic material may be aspirated and removed before or after insertion of the intraocular lens.

[0004] The lens capsule is made of fibers and tends to shrink over time. If the opening in the anterior lens capsule is located on the periphery rather than the center, the force of the lens capsule contraction will be uneven, which can cause the inserted artificial lens to bend. Therefore, the anterior lens capsule needs to be incised so that the opening is located in the center, so the opening is further incised to form a nearly circular shape. Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the past, because the incision portion of dissection scissors has a linear shape, the direction in which the dissection scissors advance (e.g., approximately the outer radial direction of the opening) and the direction in which the incision should be made (e.g., approximately the circumferential direction of a circular opening) are almost perpendicular. This makes it very difficult to further incise the edge of the opening into a shape that is close to circular. In some cases, a linear incision is made that deviates from the incision direction, or the incision is made larger than the opening that should be made. This can cause the position of the artificial lens to shift or the shape of the artificial lens to change.

[0006] Embodiments of the present disclosure improve upon or overcome at least some of the problems associated with conventional straight dissecting scissors by providing surgical scissors for dissecting the anterior capsule of a lens, the scissors including first and second cutting portions disposed transverse to the direction of entry of the dissecting scissors. [Means for solving the problem]

[0007] An embodiment of the present disclosure relates to surgical scissors for incising the anterior capsule of a lens. The surgical scissors for incising the anterior capsule of a lens according to an exemplary embodiment include a first lever extending in the front-to-back direction, a second lever extending in the front-to-back direction, and a rotation shaft rotatably connecting the first and second levers to each other. The first lever includes a first handle formed at a rear portion relative to the rotation shaft, and a first blade having a first non-cutting portion formed at a front portion relative to the rotation shaft and extending forward, and a first cutting portion protruding from a front end of the first non-cutting portion in one direction transverse to the front-to-back direction and the up-to-down direction. The second lever includes a second handle formed at a rear portion relative to the rotation axis and separable downward from the first handle, and a second blade having a second non-cutting portion formed at a front portion relative to the rotation axis and extending forward, and a second cutting portion protruding in one direction from a front end of the second non-cutting portion and configured to abut against the first cutting portion. When the second lever rotates relative to the first lever so that the first and second handles approach each other in the up-down direction, the first and second cutting portions are configured to incise the anterior capsule.

[0008] In one embodiment, the first cutting portion may have a first cutting edge at an upper end, and the second cutting portion may have a second cutting edge at a lower end configured to abut the first cutting edge.

[0009] In one embodiment, the first cutting portion may include a first flat surface that is a leading end surface of the first cutting portion, and the second cutting portion may include a second flat surface that is a trailing end surface of the second cutting portion.

[0010] In one embodiment, when the first cutting portion and the second cutting portion are in contact with each other, the first flat surface and the second flat surface may be in contact with each other on the same plane.

[0011] In one embodiment, the first and second planar surfaces may extend in a direction between an inferior direction and a rearward direction.

[0012] In one embodiment, when the first cutting portion and the second cutting portion are in contact with each other, the first cutting portion may be located rearward relative to the second cutting portion, and the first non-cutting portion may be located to one side relative to the second non-cutting portion.

[0013] In one embodiment, Surgical scissors are The device may further include a stopper coupled to the first handle or the second handle and configured to maintain a minimum separation distance between the first handle and the second handle.

[0014] In one embodiment, the first lever may include a first elastic portion extending rearward from a rear end of the first handle, and the second lever may include a second elastic portion extending rearward from a rear end of the second handle. The rear ends of the first elastic portion and the second elastic portion may be connected to each other, and may be configured so that the first elastic portion elastically warps and deforms to bulge upward, and the second elastic portion elastically warps and deforms to bulge downward.

[0015] In one embodiment, the first lever may include a first rotation shaft support portion with a rotation shaft located between the first handle and the first non-cutting portion, the first non-cutting portion extending forward from a lower portion of the first rotation shaft support portion. The second lever may further include a second rotation shaft support portion with a rotation shaft located between the second handle and the second non-cutting portion, the second non-cutting portion extending forward from an upper portion of the second rotation shaft support portion. [Effects of the Invention]

[0016] According to the surgical scissors for incising the anterior capsule of a lens according to various embodiments of the present disclosure, the incision direction of the anterior capsule of a lens made by the first cutting unit and the second cutting unit is a direction that intersects the direction in which the first lever and the second lever are inserted. This makes it easier to further incise the opening formed in the anterior capsule of the lens so that it becomes closer to a circle. As a result, the anterior capsule of the lens can be induced to contract more uniformly into a circle, and the phenomenon of the artificial lens shifting in position or deformation of the artificial lens can be prevented. [Brief explanation of the drawings]

[0017] [Figure 1] FIG. 1 is a perspective view showing surgical scissors for incising the anterior capsule of a lens according to one embodiment of the present disclosure.

[0018] [Figure 2] 2 is a perspective view of the surgical scissors for incising the anterior capsule of the lens shown in FIG. 1, seen from another angle, with the rear ends of the first and second levers separated. FIG.

[0019] [Figure 3] FIG. 3 is an exploded perspective view showing the surgical scissors for incising the anterior capsule of the lens shown in FIG. 2.

[0020] [Figure 4] FIG. 4 is an enlarged plan view of the first blade shown in FIG. 3.

[0021] [Figure 5] FIG. 4 is an enlarged plan view of the second blade shown in FIG. 3.

[0022] [Figure 6] 3 is an enlarged front view of the first and second blades shown in FIG. 2. FIG.

[0023] [Figure 7] 3 is a perspective view showing the first and second blades shown in FIG. 2 from another angle. FIG.

[0024] [Figure 8] FIG. 4 is an enlarged front view of the first blade shown in FIG. 3.

[0025] [Figure 9] FIG. 4 is an enlarged front view of the second blade shown in FIG. 3. DETAILED DESCRIPTION OF THE INVENTION

[0026] The examples of the present disclosure are provided for the purpose of explaining the technical concept of the present disclosure, and the scope of the rights of the present disclosure is not limited to the examples presented below or the specific descriptions of these examples.

[0027] Unless otherwise specified, all technical and scientific terms used in this disclosure have the meanings commonly understood by those of ordinary skill in the art to which this disclosure belongs. All terms used in this disclosure have been selected for the purpose of more clearly describing this disclosure, and are not selected to limit the scope of rights related to this disclosure.

[0028] As used in this disclosure, terms such as "including," "comprising," "having," and the like should be understood as open-ended terms that include the possibility of including other embodiments, unless otherwise specified in the phrase or sentence in which the term is included.

[0029] The singular terms used in this disclosure may include plural meanings unless otherwise specified, and this also applies to the singular terms used in the claims.

[0030] The terms "first," "second," etc. used in this disclosure are used to distinguish between multiple elements and do not limit the order or importance of the elements.

[0031] In this disclosure, when a component is referred to as being "coupled" or "connected" to another component, it may be understood that the component is directly coupled or connected to the other component, or that the component is coupled or connected via another component.

[0032] Directional terms such as "front" and "forward (FD)" used in this disclosure refer to the direction in which the first and second blades are positioned relative to the first and second handles in the accompanying drawings, and directional terms such as "rear" and "rearward (RD)" refer to the opposite direction. Directional terms such as "up," "upper," and "upward (UD)" refer to the direction in which the first lever is positioned relative to the second lever in the accompanying drawings, and directional terms such as "down," "lower," and "downward (DD)" refer to the opposite direction. The first and second blades and first and second handles, or the first and second levers, shown in the accompanying drawings may be oriented differently from the above, and these directional terms should be interpreted accordingly.

[0033] Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. In the accompanying drawings, identical or corresponding components are designated by the same reference numerals. In addition, in the following description of the embodiments, repeated descriptions of identical or corresponding components may be omitted. However, omission of a description of a component does not mean that the component is not included in a certain embodiment.

[0034] Fig. 1 is a perspective view showing surgical scissors for incising the anterior capsule of a lens according to one embodiment of the present disclosure. Fig. 2 is a perspective view of the surgical scissors for incising the anterior capsule of a lens shown in Fig. 1, viewed from another angle, with the rear ends of the first and second levers separated. Fig. 3 is an exploded perspective view showing the surgical scissors for incising the anterior capsule of a lens shown in Fig. 2.

[0035] As shown in FIGS. 1 to 3, a pair of surgical scissors 1000 (hereinafter simply referred to as "surgical scissors") for incising the anterior capsule of a lens according to one embodiment of the present disclosure includes a first lever 100, a second lever 200, and a rotating shaft 300. The surgical scissors 1000 may be made of a metal material. In particular, the surgical scissors 1000 may be made of stainless steel or a titanium alloy to prevent corrosion.

[0036] The first lever 100 extends in the front-rear direction (FD-RD) and includes a first handle 110 and a first blade 120. The first handle 110 and the first blade 120 constituting the first lever 100 may be integrally formed. The first lever 100 is configured such that the first handle 110 and the first blade 120 are positioned in opposite directions in the up-down direction (UD-DD) based on the rotation axis 300. For example, the first handle 110 may be positioned in the upper direction (UD) based on the rotation axis 300, and the first blade 120 may be positioned in the lower direction (DD) based on the rotation axis 300. Therefore, when the first handle 110 moves from the upper direction (UD) to the lower direction (DD) around the rotation axis 300, the first blade 120 moves from the lower direction (DD) to the upper direction (UD) around the rotation axis 300. Conversely, when the first handle 110 moves from downward (DD) to upward (UD) around the rotation axis 300, the first blade 120 moves from upward (UD) to downward (DD) around the rotation axis 300.

[0037] The first handle 110 is formed on the rear portion of the rotary shaft 300 and extends in the rearward direction (RD). The first handle 110 is a portion that is gripped by the surgeon's hand (e.g., thumb). A plurality of first uneven portions may be formed on at least a portion of the upper surface of the first handle 110 to prevent the surgeon's hand from slipping. The first uneven portions may extend in a direction aligned with one side (OD). The first uneven portions are not limited to the embodiment shown in the drawings and may have various shapes and patterns.

[0038] FIG. 4 is an enlarged plan view of the first blade shown in FIG.

[0039] As shown in FIG. 4 , the first blade 120 has a first non-cutting portion 121 and a first cutting portion 122. The first non-cutting portion 121 is formed in a front portion with respect to the rotation axis 300 and extends in the forward direction (FD). The first non-cutting portion 121 is not directly used to incise the anterior capsule of the lens, but connects the first handle 110 and the first cutting portion 122. The first cutting portion 122 protrudes in an OD direction from the front end of the first non-cutting portion 121. Here, the OD direction is a direction intersecting the FD-RD direction and the UD-DD direction. For example, the OD direction is a direction perpendicular to the FD-RD direction and the UD-DD direction and may be aligned with the rotation axis 300. The first cutting portion 122 may be disposed perpendicular to the first non-cutting portion 121. The first non-cutting portion 121 and the first cutting portion 122 may be substantially L-shaped. The first cutting portion 122 is directly used to incise the anterior capsule of the crystalline lens. The outward direction (OD) from which the first cutting portion 122 protrudes may refer to the direction opposite to the direction shown in Figures 1 to 3.

[0040] The second lever 200 extends in the front-rear direction (FD-RD) and includes a second handle 210 and a second blade 220. The second handle 210 and the second blade 220 constituting the second lever 200 may be integrally formed. The second lever 200 is configured such that the second handle 210 and the second blade 220 are positioned in opposite directions in the up-down direction (UD-DD) based on the rotation axis 300. For example, the second handle 210 may be positioned below (DD) based on the rotation axis 300, and the second blade 220 may be positioned above (UD) based on the rotation axis 300. Therefore, when the second handle 210 moves from the down (DD) to the up (UD) around the rotation axis 300, the second blade 220 moves from the up (UD) to the down (DD) around the rotation axis 300. Conversely, when the second handle 210 moves from the upper (UD) to the lower (DD) around the rotation axis 300, the second blade 220 moves from the lower (DD) to the upper (UD) around the rotation axis 300.

[0041] The second handle 210 is formed on the rear portion of the rotary shaft 300 and extends in the rearward direction (RD). The second handle 210 is configured to be separable downward from the first handle 110. The second handle 210 is a portion to be gripped by the operator's hand (e.g., the index finger and / or middle finger). A plurality of second uneven portions may be formed on at least a portion of the underside of the second handle 210 to prevent the operator's hand from slipping. The second uneven portions may extend in a direction aligned with one side (OD). The second uneven portions are not limited to the embodiment shown in the drawings and may have various shapes and patterns.

[0042] FIG. 5 shows the first 2 FIG. 2 is an enlarged plan view of the blade.

[0043] As shown in FIG. 5, the second blade 220 has a second non-cutting portion 221 and a second cutting portion 222. 2 The second non-cutting portion 221 is formed in a front portion with respect to the rotation axis 300 and extends forward (FD). The second non-cutting portion 221 is not directly used to incise the anterior capsule of the crystalline lens, but connects the second handle 210 and the second cutting portion 222. The second cutting portion 222 protrudes in one side direction (OD) from the front end of the second non-cutting portion 221 and is configured to abut against the first cutting portion 122. The second cutting portion 222 may be disposed perpendicular to the second non-cutting portion 221. The second cutting portion 222 protrudes in the same one side direction (OD) as the first cutting portion 122. The second non-cutting portion 221 and the second cutting portion 222 may form a substantially L-shape. The second cutting portion 222 is directly used to incise the anterior capsule of the crystalline lens. The one side direction (OD) in which the second cutting portion 222 protrudes may refer to the direction opposite to the direction shown in FIGS.

[0044] The rotating shaft 300 rotatably connects the first lever 100 and the second lever 200 to each other. As an example, one end of the rotating shaft 300 may be fixed to either the first lever 100 or the second lever 200, and the other end may be configured to be rotatable relative to either the first lever 100 or the second lever 200. As another example, the rotating shaft 300 may be configured to be rotatable relative to both the first lever 100 and the second lever 200 by forming locking portions having a diameter larger than that of the rotating shaft 300 at both ends so as to prevent the rotating shaft 300 from coming off the first lever 100 or the second lever 200. In the following description, an example will be mainly described in which one end of the rotating shaft 300 is fixed to the second lever 200, and the other end of the rotating shaft 300 is inserted into a through-hole 141 (see FIG. 3 ) formed in the first lever 100, and is configured to be rotatable relative to the first lever 100.

[0045] When the second lever 200 rotates around the rotation axis 300 relative to the first lever 100 so that the first handle 110 and the second handle 210 approach each other in the up-down direction (UD-DD), the first cutting unit 122 and the second cutting unit 222 come into contact with each other to incise the anterior capsule. In this manner, the incision direction (i.e., the one-side direction (OD)) of the anterior capsule of the crystalline lens made by the first cutting unit 122 and the second cutting unit 222 is perpendicular to the direction of entry (i.e., the forward direction (FD)) of the first lever 100 and the second lever 200. This facilitates further incision of the opening formed in the anterior capsule of the crystalline lens so that it approaches a circular shape. As a result, the anterior capsule of the crystalline lens contracts uniformly into a circular shape, preventing the position of the artificial lens from shifting or the shape of the artificial lens from deforming.

[0046] 3, in one embodiment, the first cutting portion 122 may have a first cutting blade 122a at its upper end, and the second cutting portion 222 may have a second cutting blade 222a at its lower end configured to abut against the first cutting blade 122a. The first cutting blade 122a is formed along the edge of the upper end of the first cutting portion 122 and extends side by side in the one side direction (OD). The second cutting blade 222a is formed along the edge of the lower end of the second cutting portion 222 and extends side by side in the one side direction (OD).

[0047] FIG. 6 is an enlarged front view of the first and second blades shown in FIG.

[0048] As shown in FIG. 6 , in one embodiment, the first cutting portion 122 may include a first flat surface 122b that is a front end surface of the first cutting portion 122, and the second cutting portion 222 may include a second flat surface 222b that is a rear end surface of the second cutting portion 222. A surface that bulges rearward may be formed at the rear end of the first cutting portion 122. A cross section of the first cutting portion 122 along the front-rear direction (FD-RD) may have a substantially semicircular shape. A surface that bulges forward may be formed at the front end of the second cutting portion 222. A cross section of the second cutting portion 222 along the front-rear direction (FD-RD) may have a substantially semicircular shape. In one embodiment, when the first cutting portion 122 and the second cutting portion 222 are in contact with each other, the first flat surface 122b and the second flat surface 222b may be in contact with each other on the same plane.

[0049] In one embodiment, the first planar surface 122b and the second planar surface 222b may extend in a direction between a downward direction (i.e., downward (DD)) and a rearward direction (i.e., rearward (RD)). As shown in Figure 6, the first planar surface 122b and the second planar surface 222b may be oriented at an angle relative to an imaginary plane (VS) perpendicular to the forward-backward direction (FD-RD).

[0050] FIG. 7 is a perspective view showing the first and second blades shown in FIG. 2 from another angle.

[0051] 7, in one embodiment, when the first cutting portion 122 and the second cutting portion 222 are in contact with each other, the first cutting portion 122 may be located rearward (RD) from the second cutting portion 222, and the first non-cutting portion 121 may be located toward one side (OD) from the second non-cutting portion 221. The first blade 120, including the first non-cutting portion 121 and the first cutting portion 122, is located rearward (RD) and toward one side (OD) from the second blade 220, including the second non-cutting portion 221 and the second cutting portion 222. This configuration minimizes the size of the first blade 120 and the second blade 220 of the surgical scissors 1000. Therefore, the corneal incision area required for the surgical scissors 1000 to enter can be minimized. As a result, corneal damage can be reduced or prevented.

[0052] The surgical scissors 1000 according to one embodiment may further include a stopper 400 coupled to the first handle 110 or the second handle 210 and configured to maintain the first handle 110 and the second handle 210 at a minimum distance. The minimum distance may refer to the maximum distance that the first handle 110 and the second handle 210 can move toward each other to incise the anterior capsule of the lens. The stopper 400 may be formed to protrude downward (DD) from the bottom surface of the first handle 110 or may be formed to protrude upward (UD) from the top surface of the second handle 210.

[0053] In one embodiment, the first lever 100 may include a first elastic portion 130 extending rearward (RD) from the rear end of the first handle 110, and the second lever 200 may include a second elastic portion 230 extending rearward (RD) from the rear end of the second handle 210. In this embodiment, as shown in FIG. 1 , the rear ends of the first elastic portion 130 and the second elastic portion 230 may be connected to each other, and the first elastic portion 130 may be configured to elastically deform so as to bulge upward (UD), and the second elastic portion 230 may be configured to elastically deform so as to bulge downward (DD). When the surgeon applies a pressure to move the first handle 110 and the second handle 210 toward each other, the first elastic portion 130 and the second elastic portion 230 elastically deform. When the surgeon releases the pressure on the first handle 110 and the second handle 210, the first handle 110 and the second handle 210 return to their original positions due to the elastic restoring force of the first elastic part 130 and the second elastic part 230. The surgeon only needs to apply pressure to move the first handle 110 and the second handle 210 when making an incision, which reduces the surgeon's fatigue during surgery.

[0054] FIG. 8 is an enlarged front view of the first blade shown in FIG.

[0055] 8, in one embodiment, the first lever 100 further includes a first rotating shaft support portion 140, in which the rotating shaft 300 is located, between the first handle 110 and the first non-cutting portion 121, and the first non-cutting portion 121 may extend forward (FD) from a lower portion of the first rotating shaft support portion 140. The first rotating shaft support portion 140 may be a part of the front end of the first handle 110 and may be formed integrally with the first handle 110. The size of the first non-cutting portion 121 in the up-down direction (UD-DD) is smaller than that of the first rotating shaft support portion 140.

[0056] FIG. 9 is an enlarged front view of the second blade shown in FIG.

[0057] 9, in this embodiment, the second lever further includes a second rotating shaft support portion 240, in which the rotating shaft 300 is located, between the second handle 210 and the second non-cutting portion 221, and the second non-cutting portion 221 may extend forward (FD) from an upper side portion of the second rotating shaft support portion 240. The second rotating shaft support portion 240 may be a part of the front end of the second handle 210 and may be formed integrally with the second handle 210. The size of the second non-cutting portion 221 in the up-down direction (UD-DD) is smaller than that of the second rotating shaft support portion 240.

[0058] Because the first non-cutting portion 121 is located below the first rotating shaft support portion 140 and the second non-cutting portion 221 is located above the second rotating shaft support portion 240, when the first cutting portion 122 and the second cutting portion 222 are in contact with each other, the vertical size of the first non-cutting portion 121 and the second non-cutting portion 221 may be the same as the size of the first rotating shaft support portion 140 or the size of the second rotating shaft support portion 240. This configuration can minimize the size of the first blade 120 and the second blade 220 of the surgical scissors 1000. Therefore, the corneal incision area required for the surgical scissors 1000 to enter can be minimized. As a result, corneal damage can be suppressed or prevented.

[0059] Although the technical idea of ​​the present disclosure has been described above by way of some embodiments and examples shown in the accompanying drawings, it should be understood that various substitutions, modifications, and changes can be made without departing from the technical idea and scope of the present disclosure, which can be understood by those skilled in the art to which the present disclosure pertains. Furthermore, such substitutions, modifications, and changes should be considered to fall within the scope of the appended claims.

Claims

1. A surgical scissors for incising the anterior capsule of a lens, a first lever extending in the front-rear direction; a second lever extending in the front-rear direction; and a rotation shaft that rotatably connects the first lever and the second lever to each other, The first lever is a first handle formed at a rear portion with respect to the rotation axis; and a first blade having a first non-cutting portion formed in a front portion with respect to the rotation axis and extending forward, and a first cutting portion protruding from a front end of the first non-cutting portion in one direction transverse to the front-rear direction and the up-down direction, The second lever is a second handle formed at a rear portion of the rotating shaft and movable downward from the first handle; and a second blade having a second non-cutting portion formed in a front portion with respect to the rotation axis and extending forward, and a second cutting portion protruding in the one side direction from a front end of the second non-cutting portion and configured to abut against the first cutting portion, Surgical scissors for incising the anterior capsule of a lens, wherein the first cutting portion and the second cutting portion are configured to incise the anterior capsule when the second lever rotates relative to the first lever so that the first handle and the second handle approach each other in the up-down direction.

2. the first cutting portion has a first cutting blade at an upper end, The surgical scissors for incising the anterior capsule of a lens according to claim 1 , wherein the second cutting portion has a second cutting blade at a lower end thereof configured to abut against the first cutting blade.

3. the first cutting portion includes a first flat surface that is a front end surface of the first cutting portion, The surgical scissors for incising the anterior capsule of a lens according to claim 1 , wherein the second cutting portion includes a second flat surface that is a rear end surface of the second cutting portion.

4. 4. The surgical scissors for incising the anterior capsule of a lens according to claim 3, wherein the first flat surface and the second flat surface abut on the same plane when the first cutting portion and the second cutting portion are in contact with each other.

5. The surgical scissors for incising the anterior capsule of a lens according to claim 4 , wherein the first flat surface and the second flat surface extend in a direction between an inferior direction and a posterior direction.

6. 2. The surgical scissors for incising the anterior capsule of a lens according to claim 1, wherein, when the first cutting portion and the second cutting portion are in contact with each other, the first cutting portion is located rearward with respect to the second cutting portion, and the first non-cutting portion is located to the one side with respect to the second non-cutting portion.

7. 2. The surgical scissors for incising the anterior capsule of a lens according to claim 1, further comprising a stopper coupled to the first handle or the second handle and configured to maintain a minimum separation distance between the first handle and the second handle.

8. the first lever includes a first elastic portion extending rearward from a rear end of the first handle, the second lever includes a second elastic portion extending rearward from a rear end of the second handle, 2. The surgical scissors for incising the anterior capsule of a lens according to claim 1, wherein a rear end of the first elastic portion and a rear end of the second elastic portion are connected to each other, and the first elastic portion is configured to be elastically warped and deformed so as to bulge upward, and the second elastic portion is configured to be elastically warped and deformed so as to bulge downward.

9. the first lever includes a first rotation shaft support portion, in which the rotation shaft is located, between the first handle and the first non-cutting portion; the first non-cutting portion extends forward from a lower portion of the first rotation shaft support portion, the second lever further includes a second rotation shaft support portion, the rotation shaft being located between the second handle and the second non-cutting portion; The surgical scissors for incising the anterior capsule of a lens according to claim 1 , wherein the second non-cutting portion extends forward from an upper side of the second rotation axis support portion.

Citation Information

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