Chopper for cataract surgery

Abstract

The present invention relates to a chopper for cataract surgery, comprising: a barrel; a chopper needle provided in one region of the outer periphery of the barrel so as to segment the lens of the eye; a moving body movably accommodated in the barrel; a plurality of mirror segments which are arranged along the outer periphery of the moving body so as to be withdrawn from or inserted into the barrel, and which each include, at one plate surface, a mirror surface that reflects light; and an operation part connected to the moving body so as to allow the moving body to advance or retreat so that the plurality of mirror segments are withdrawn from or inserted into the barrel.

Description

Chopper for cataract surgery

[0001] The present invention relates to a cataract surgery chopper equipped with a mirror to enable confirmation of the internal structure of the eye during cataract surgery.

[0002] Cataract surgery is a procedure that involves splitting the lens, removing it, and then inserting an artificial lens.

[0003] In this type of cataract surgery, a chopper is used to split the lens.

[0004] Meanwhile, cataract surgery is performed by shining light toward the eye with a lighting device, using a chopper to split the lens, emulsifying the lens with an ultrasonic emulsifier and removing it, and then inserting an artificial lens.

[0005] However, even if the ciliary body zonule is dissociated (zonulyzed) due to trauma or other reasons during cataract surgery, this ciliary body zonule dissociation is obscured behind the iris, making it difficult for the surgeon to confirm.

[0006] If cataract surgery is performed while the ciliary body dissociation is left unchecked, there is a problem that serious complications may occur, such as the lens being dislocated toward the vitreous body, the vitreous body coming out in front, or the artificial lens being dislocated during implantation.

[0007] Therefore, there is a need to develop a chopper that can easily check for ciliary body dissociation or lens displacement on the opposite side of the surgical site by making the most of the light irradiated from the outside toward the eye.

[0008] The present invention is intended to solve the above-mentioned problems, and the purpose of the present invention is to provide a chopper for cataract surgery that can secure visibility of the internal structure of the eye by reflecting light entering through the eye during cataract surgery toward the front of the surgical site, and can easily check for dissociation of the ciliary body zone or displacement of the lens, and can prevent complications resulting therefrom in advance.

[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 chopper for cataract surgery, comprising: a barrel; a chopper needle provided in an outer peripheral region of the barrel to split a crystalline lens of an eye; a moving body movably received in the barrel; a plurality of mirror segments arranged along the outer peripheral region of the moving body to be pulled out or pulled in to the barrel, the plurality of mirror segments including a mirror surface reflecting light on one side surface; and an operating unit connected to the moving body to advance or retreat the moving body to pull out or pull in the plurality of mirror segments into the barrel.

[0011] Here, when the plurality of mirror segments are introduced into the barrel, the plurality of mirror segments are folded and accommodated in the barrel, and when the plurality of mirror segments are withdrawn from the barrel, the plurality of mirror segments are unfolded and can protrude from the barrel.

[0012] In addition, a stopper may be further included on the movement path of the operating part to limit movement of the moving body in the inlet direction.

[0013] When a plurality of the above mirror segments are introduced into the barrel, the boundary regions of adjacent pairs of mirror segments can be arranged to partially overlap.

[0014] A projection groove is formed on the back surface of one of the adjacent pair of mirror segments, and a projection that reciprocates and engages with the projection groove is formed on the mirror surface of the other mirror segment, so that the pair of mirror segments can be interconnected and overlapped or spread out.

[0015] The plurality of said mirror segments may be formed of an elastic body that generates an elastic force so as to spread out in the outer radial direction of the moving body.

[0016] The above operating part may include a rod or wire in the shape of a rod.

[0017] The above barrel may further include a grip portion that supports and grips the barrel.

[0018] According to the present invention, by providing a plurality of mirror segments that are extended or folded in a chopper, light entering through the eye during cataract surgery is reflected in front of the surgical site, thereby ensuring visibility of the internal structure of the eye and easily confirming whether there is dissociation of the ciliary body or displacement of the lens, and thus preventing complications arising therefrom in advance.

[0019] 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.

[0020] Figure 1 is a perspective view of a cataract surgery chopper according to one embodiment of the present invention.

[0021] Figure 2 is an enlarged perspective view of the main body showing a state in which multiple mirror segments of Figure 1 are introduced into the barrel.

[0022] Figure 3 is an enlarged cross-sectional view of the main part of Figure 2;

[0023] Figure 4 is a front view of Figure 2;

[0024] Figure 5 is an enlarged perspective view of the main body of Figure 1 showing a state in which multiple mirror segments are withdrawn from the barrel.

[0025] Fig. 6 is an enlarged cross-sectional view of the main part of Fig. 5;

[0026] Figure 7 is a schematic diagram showing a state of performing cataract surgery using a cataract surgery chopper according to one embodiment of the present invention.

[0027] Figure 8 is a perspective view of a cataract surgery chopper according to another embodiment of the present invention.

[0028] Fig. 9 is an enlarged cross-sectional view of a portion of Fig. 8 showing a state in which multiple mirror segments are introduced into the barrel.

[0029] Figure 10 is an exploded perspective view of a pair of mirror segments of Figure 8.

[0030] 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 together 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, and the present invention is defined solely by the scope of the claims.

[0031] 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.

[0032] Unless otherwise defined, all terms (including technical and scientific terms) used herein may be used in their common sense to those skilled 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.

[0033] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings.

[0034] 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 different configurations from one embodiment will be described.

[0035] FIGS. 1 to 6 illustrate a cataract surgery chopper according to one embodiment of the present invention.

[0036] As shown in these drawings, a cataract surgery chopper (1) according to one embodiment of the present invention includes a barrel (10), a chopper needle (20), a moving body (30), a plurality of mirror segments (40), and an operating unit (50).

[0037] The barrel (10) has a hollow rod shape, and an operating part (50) is provided on the inside of the barrel (10) so as to be able to move back and forth.

[0038] At one end of the barrel (10), an inlet (11) is formed through which a plurality of mirror segments (40) are drawn in and out.

[0039] A grip portion (15) is provided on the outer peripheral area of ​​the opposite end of the barrel (10) from the inlet (11) to support the barrel (10) and allow the operator to grip it.

[0040] The chafer needle (20) is provided to protrude at a certain height in the outer radial direction of the barrel (10) on the outer peripheral area of ​​one end of the barrel (10).

[0041] These chopper needles (20) serve to split the lens of the eye (110, see Fig. 7) during cataract surgery.

[0042] The moving body (30) has a disc shape and is movably accommodated inside the barrel (10).

[0043] A plurality of mirror segments (40) are arranged along the outer periphery of the moving body (30) and are introduced into or withdrawn from the barrel (10).

[0044] The plurality of mirror segments (40) have a cross-sectional shape of a partial circular arc, for example, a partial arch shape.

[0045] When a plurality of mirror segments (40) are withdrawn from the barrel (10), as shown in FIGS. 5 and 6, the plurality of mirror segments (40) are withdrawn to the outside of the barrel (10) through the withdrawal inlet (11) and spread out in the outer radial direction of the moving body (30).

[0046] When multiple mirror segments (40) are withdrawn from the barrel (10), the boundary areas of adjacent pairs of mirror segments (40) do not overlap and are spread out at a 360-degree angle.

[0047] Here, when a plurality of mirror segments (40) are pulled out from the barrel (10) and unfolded, the plurality of mirror segments (40) may partially overlap and unfold at a 360-degree angle.

[0048] When a plurality of mirror segments (40) are introduced into the inside of the barrel (10), the plurality of mirror segments (40) are folded toward the central axis of the moving body (30) and accommodated in the barrel (10), as shown in FIGS. 2 to 4.

[0049] When a plurality of mirror segments (40) are accommodated in a barrel (10), the boundary areas of adjacent pairs of mirror segments (40) partially overlap each other.

[0050] Meanwhile, the plurality of mirror segments (40) may be made of an elastic body that generates elastic force so as to spread out in the outer radial direction of the moving body (30).

[0051] The mirror segment (40) is an elastically deformable material and may be made of various rubber materials such as urethane rubber, fluororubber, and chloroprene rubber, or various flexible synthetic resin materials, and may also be made of an elastically deformable metal material.

[0052] In addition, a mirror surface (45) that reflects light is provided on the inner surface of a plurality of mirror segments (40), for example, on the inner surface of segments (40) that face each other along the periphery of the moving body (30).

[0053] The mirror surface (45) forms a smooth surface like a mirror surface and includes a reflector that reflects light, and the reflector is coated or applied to the mirror surface (45).

[0054] Here, although the present embodiment illustrates that four mirror segments (40) are provided, the number of mirror segments (40) is not limited thereto, and a plurality of mirror segments (40) may be provided. In addition, a plurality of mirror segments (40) may be provided rotatably around the perimeter of the moving body (30), so as to perform an unfolding or folding operation.

[0055] The operating part (50) has a rod shape of a certain length, and one side of the operating part (50) is connected to the moving body (30).

[0056] The operating part (50) is provided reciprocally movably on the inside of the barrel (10), moves the moving body (30) forward or backward to the opposite side of the grip part (15), and pulls out or pulls in a plurality of mirror segments (40) into the barrel (10).

[0057] In this embodiment, a rod in the shape of a bar is shown as an example of an operating part (50), but the present invention is not limited thereto, and the operating part may be made of a wire.

[0058] On the other side of the operating part (50), a knob (55) is provided for gripping the operating part (50). After gripping the knob (55), the operating part (50) is moved forward or backward along the inside of the barrel (10).

[0059] Meanwhile, a cataract surgery chopper (1) according to one embodiment of the present invention further includes a stopper (60).

[0060] A stopper (60) is provided on the movement path of the operating part (50) inside the barrel (10) to limit the movement of the moving body (30) in the inlet direction.

[0061] That is, as shown in FIG. 3, the stopper (60) comes into contact with the moving body (30) when the moving body (30) moves in the opposite direction of the inlet / outlet (11) to limit the backward movement of the moving body (30), and at the same time, accommodates a plurality of mirror segments (40) in the barrel (10) so that they are not exposed from the barrel (10).

[0062] Additionally, the stopper (60) also serves to support the operating part (50) by sliding so that the operating part (50) can move smoothly within the barrel (10).

[0063] By this configuration, the process of performing cataract surgery using a cataract surgery chopper (1) according to one embodiment of the present invention with reference to FIG. 7 is described as follows.

[0064] First, light is irradiated toward the eye using a lighting device, and the lens is emulsified using an ultrasonic emulsifier. Then, the cornea (100) is partially incised, and a surgical tool (130) and a chopper (1) are introduced into the eye, and the emulsified lens (110) is split by the chopper (1).

[0065] Meanwhile, during the process of splitting the crystal (110) with the chopper (1), the operating part (50) of the chopper (1) moves forward to pull out a plurality of mirror segments (40) from the barrel (10) and spread them radially, for example, at an angle of 360 degrees.

[0066] As the plurality of mirror segments (40) are spread out, light irradiated toward the eye side is reflected by each mirror surface (45) of the plurality of mirror segments (40) to illuminate the surgically opposite side of the chopper (1), i.e., the area covered by the iris.

[0067] Accordingly, the surgeon can secure visibility of the ciliary body (120) and the like by the reflected light of multiple mirror segments (40), and can easily check for ciliary body dissociation or displacement of the lens.

[0068] Meanwhile, if the splitting process of the crystalline lens (110) is interrupted due to the withdrawal of multiple mirror segments (40) during surgery, the operating part (50) of the chopper (1) is moved backwards to insert and accommodate multiple mirror segments (40) into the barrel (10).

[0069] And, during the surgery, the surgeon uses multiple mirror segments (40) to reflect light entering through the eye toward the front of the surgical site, thereby ensuring visibility of the internal structure of the eye, and while checking for dissociation of the ciliary body zone (120) or displacement of the lens (110), removes the split lens (110), and then inserts an artificial lens, thereby completing the cataract surgery.

[0070] Meanwhile, FIGS. 8 to 10 illustrate a cataract surgery chopper according to another embodiment of the present invention.

[0071] According to another embodiment of the present invention, a plurality of mirror segments (40') of a cataract surgery chopper (1') are accommodated while overlapping on the inside of a barrel (10) as shown in FIG. 9, unlike the above-described embodiment, and then are pulled out from the barrel (10) as shown in FIG. 8 and spread out in a fan shape along the circumference of the barrel (10).

[0072] Meanwhile, as illustrated in FIG. 10, a catch (41) is formed on the mirror surface (45) of the first mirror segment (40a') located outside of the plurality of mirror segments (40') to allow a surgical tool (not shown) to be caught in order to rotate the first mirror segment (40a') in one direction along the circumference of the barrel (10).

[0073] In addition, on the back surface of the first mirror segment (40a'), a projection moving groove (42) is formed in a reciprocating arc shape of a certain length, in which a projection (43) provided on an adjacent second mirror segment (40b') is combined and moves back and forth.

[0074] The projection (43) provided on the second mirror segment (40b') protrudes from the mirror surface (45) of the second mirror segment (40b') to a certain height so as to be able to move back and forth along the projection moving groove (42) formed on the back surface of the first mirror segment (40a').

[0075] To explain more specifically, the protrusion (43) of the second mirror segment (40b') is coupled to the protrusion moving groove (42) formed on the back surface of the first mirror segment (40a'), so that the first mirror segment (40a') and the second mirror segment (40b') are interconnected, the protrusion (43) of the third mirror segment (40c') is coupled to the protrusion moving groove (42) formed on the back surface of the second mirror segment (40b'), so that the second mirror segment (40b') and the third mirror segment (40c') are interconnected, and the protrusion (43) of the fourth mirror segment (40d') is coupled to the protrusion moving groove (42) formed on the back surface of the third mirror segment (40c'), so that the third mirror segment (40c') and the fourth mirror segment (40d') are interconnected.

[0076] Accordingly, the plurality of mirror segments (40') of the cataract surgery chopper (1') according to another embodiment of the present invention are received while overlapping on the inside of the barrel (10) as shown in FIG. 9, and then the operating unit (50) is advanced to withdraw the plurality of overlapping mirror segments (40') from the barrel, and then the engaging portion (41) of the first mirror segment (40a') located on the outside is hooked with a surgical tool or the like to rotate it along the circumference of the barrel (10), so that the first mirror segment (40a'), the second mirror segment (40b'), the third mirror segment (40c'), and the fourth mirror segment (40d') are spread out into a fan shape as shown in FIG. 8.

[0077] Accordingly, as the plurality of mirror segments (40') are spread out, the light irradiated toward the eye is reflected by each mirror surface (45) of the plurality of mirror segments (40'), thereby illuminating the area opposite the surgical side of the chopper (1), i.e., the area covered by the iris.

[0078] Accordingly, the surgeon can secure visibility of the ciliary body zone, etc., by the reflected illumination of multiple mirror segments (40'), and can easily check for ciliary body zone dissociation or lens displacement.

[0079] In this way, according to the present invention, by providing a plurality of mirror segments that are extended or folded in a chopper, light entering through the eye during cataract surgery is reflected in front of the surgical site, thereby ensuring visibility of the internal structure of the eye, and easily confirming whether there is dissociation of the ciliary body or displacement of the lens, and thus preventing complications arising therefrom in advance.

[0080] 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. Barrel; A chopper needle provided on the outer peripheral area of ​​the above barrel to split the lens of the eye; A movable body movably accommodated in the above barrel; A plurality of mirror segments arranged along the outer periphery of the above-mentioned moving body, which are drawn into or drawn out of the barrel, and which include a mirror surface that reflects light on one side surface; and A cataract surgery chopper, comprising an operating unit connected to the moving body and moving the moving body forward or backward to withdraw or introduce a plurality of the mirror segments into the barrel.

2. In paragraph 1, A cataract surgery chopper further comprising a stopper provided on the movement path of the operating part to limit movement of the moving body in the inlet direction.

3. In paragraph 1, A cataract surgery chopper, wherein when a plurality of the mirror segments are introduced into the barrel, the plurality of the mirror segments are folded and accommodated in the barrel, and when a plurality of the mirror segments are withdrawn from the barrel, the plurality of the mirror segments are unfolded and protrude from the barrel.

4. In paragraph 1, A cataract surgery chopper, wherein when a plurality of the above mirror segments are introduced into the barrel, the boundary areas of adjacent pairs of mirror segments are arranged to partially overlap.

5. In paragraph 1, A cataract surgery chopper, wherein a projection moving groove is formed on the back surface of one of a pair of adjacent mirror segments, and a projection that reciprocates and engages with the projection moving groove is formed on the mirror surface of the other mirror segment, so that the pair of mirror segments are interconnected and overlap or unfold.

6. In paragraph 1, A cataract surgery chopper, wherein the plurality of mirror segments are made of an elastic body that generates elastic force so as to spread out in the outer radial direction of the moving body.

7. In paragraph 1, A chopper for cataract surgery, wherein the operating part includes a rod or wire in the shape of a rod.

8. In paragraph 1, A cataract surgery chopper further comprising a grip portion that supports and grips the barrel.

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