WO2015122681A1

WO2015122681A1 - Lens capsule incision device

Info

Publication number: WO2015122681A1
Application number: PCT/KR2015/001358
Authority: WO
Inventors: 강태선
Original assignee: 강태선
Priority date: 2014-02-13
Filing date: 2015-02-11
Publication date: 2015-08-20
Also published as: KR101516749B1

Abstract

The present invention provides a lens capsule incision device comprising: a cylinder member having openings formed on both ends thereof, respectively; a plunger inserted into the cylinder member through an opening, which is formed on one of the two ends, to be able to move along the interior of the cylinder member; a wire, a part or all of which is positioned inside the cylinder member, one end of the wire being bound to the plunger such that the wire can move in the same direction as the direction of movement of the plunger, the wire having a blade portion formed on the other end thereof so as to protrude to a predetermined height; and a tube portion having a path of movement of the wire formed therein, an end of the tube portion opposite an end, in which the wire is received, constituting a free end, a bent portion being formed by a predetermined length from the free end, and a guide opening related to movement of the blade portion being formed on the bent portion.

Description

Capsulotomy

The present invention relates to a tool for dissecting a capsular bag in a cataract procedure.

The lens corresponds to the lens of the camera, as if the lens is dirty, the sharpness of the picture is reduced, when the clouding occurs in the lens because the light does not pass well into the eye, the object is blurred, this disease is called cataract. Cataracts can be caused by a variety of causes, including trauma and systemic diseases, the most common of which is senile cataracts that develop with age. Aging cataracts make up the majority of cataracts. Recently, due to prolonged life expectancy, the rate of ophthalmology and the number of surgical procedures in cataract patients are increasing every year.

Cataracts rely on surgical procedures because they are difficult to cure with drugs. Cataract surgery technique is widely used to incision in the capsular bag surrounding the lens to remove the lens located therein, and to insert the artificial lens in place of the removed lens.

In particular, incision of the capsular bag during cataract surgery is regarded as an important process associated with the safety of cataract surgery. The operator makes a fine incision in the cornea and inserts an incision through the micro incision to scrape the entire face of the capsular bag several times to expose the lens. Fine incision of the cornea needs to be minimized for postoperative recovery and vision stability, and an incision that requires excessive incision cannot be used in actual surgery. In addition, when using such an incision, the operator has to move the incision very carefully and several times in order to incision the front of the capsular bag, there is a problem that the procedure is difficult and takes a long time. When using such an incision, it is difficult to incision the capsular bag cleanly and accurately in the proper size and shape. Failure to dissect the capsular bag to an appropriate size and shape can result in radial rupture. In addition, if the operator accidentally scratches the ciliary platoon that supports the periphery of the lens, the ciliary platoon is torn and the lens may become unstable at the time of surgery.

It is an object of the present invention to provide a capsulotomy that helps to safely perform cataract surgery.

It is another object of the present invention to provide a capsulotomy that can incision a capsular bag with a simple operation during cataract surgery.

Still another object of the present invention is to provide a capsulotomy that can incision into a circular clean and accurate size during cataract surgery.

In order to solve the above-described problems, the present invention is inserted into the cylinder member through the opening formed in one end portion of the both ends, and the opening is formed at both ends and movable along the interior of the cylinder member A plunger, a part or all of which is located inside the cylinder member, and as one end is bound to the plunger, is movable in the same direction as the moving direction of the plunger, and a blade portion protruding at a predetermined height from the other end is formed. A wire and a movement path of the wire is formed therein, and an opposite end of the end where the wire is accommodated constitutes a free end, and a bent portion is formed by a predetermined length from the free end, and the bent portion has the blade Capsular node containing a duct in which a guide opening for movement of the part is formed It provides a group.

In the present invention, it may further include a compression coil spring accommodated in the cylinder member, supported on the end of the plunger and the end of the pipe connecting member.

In the present invention, the bent portion is formed in a circular shape, and the diameter of the bent portion may be 4.0 mm to 6.0 mm.

In the present invention, the blade portion can be projected obliquely in the outward direction of the tube portion.

In the present invention, the diameter of the wire can be 0.2 mm.

The capsulotomy according to the present invention can be incised cleanly in a circular and appropriate size through simple manipulation, thereby preventing radial rupture and leading to safe cataract surgery.

1 is a perspective view of a capsular bag incision according to the present invention.

2 is a partial cross-sectional view of a capsular incision according to the present invention.

3 is a cross-sectional view of the capsulotomy according to the present invention.

4 is a perspective view of a bent portion according to the present invention.

5A and 5B are respectively a plan view and a rear view of a pipe section according to the present invention.

6 is a view showing a procedure for dissecting the capsular bag during cataract surgery using a capsulotomy according to the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail the operating principle of the present disclosure. Detailed descriptions of well-known functions or configurations related to the present invention will be omitted when it is determined that the detailed description of the present disclosure may unnecessarily obscure the subject matter of the present disclosure. In addition, terms to be described below are terms defined in consideration of functions in the present disclosure, and may vary according to intention or custom of a user or an operator. Therefore, the definition should be made based on the contents throughout the specification.

Referring to FIG. 1, the capsular bag incision 100 includes a cylinder member 10, a plunger 20, a tubular connection member 30, a tubular portion 40, and a wire 50. It may include.

The cylinder member 10 is generally cylindrically open at both sides, can insert the plunger 20, and may have a path 11 for guiding the movement of the plunger 20. The cross-sectional shape of the path 11 of the cylinder member 10 is circular in shape so that the plunger 20 can rotate when moved inward. The cylinder member 10 may have a pair of handles 104 extending outward from the outer surface 103 near the rear opening 102 and disposed symmetrically with each other. The cylinder member 10 may have a hole into which the fixing portion 33 of the pipe connecting member 30 can be fitted.

The plunger 20 is inserted into the rear opening 102 of the cylinder member 10 and can be slid along the path 11 of the cylinder member 10. The cross-sectional shape of the path 11 of the cylinder member 10 is circular, and the plunger 20 is comprised so that rotational movement inside the cylinder member 10 is possible. At the end of the plunger 20 which is exposed to the outside, the pressing plate 201 may be extended.

The pipe connecting member 30 may have a passage which opens both the cylinder member 10 and the pipe portion 40, and communicates the inner space of the cylinder member 10 with the pipe portion 40. The pipe connecting member 30 may be partially inserted into the front opening 101 of the cylinder member 10 and fixed to the cylinder member 10. The front portion of the pipe connecting member 30 protruding outward from the front opening 101 of the cylinder member 10 may be conical in shape narrowing forward. The fixing part 33 of the pipe connection member 30 can be fitted into a hole formed in the cylinder member 10 and fixed.

The pipe portion 40 may be partially inserted into and fixed to the front opening 301 of the pipe connecting member 30 and may have a free end 401 extending to a predetermined length from the fixed end. The pipe portion 40 may have a passageway in communication with the passageway 31 of the pipe connecting member 30. In particular, the bent portion 410 corresponding to the predetermined length from the free end 401 of the tube portion 40 may be in a shape bent in a circle. The bend 410 may be spiral. The bent portion 410 may be formed with a guide opening 411 along the passage 41.

The wire 50 is fixed at one end to the plunger 20, extends from one end connected to the plunger 20, is inserted into the pipe part 40, and can be slid along the passage of the pipe part 40. The other end of the wire 50 may be attached to the blade portion 60 protruding outward from the outer surface of the tube portion 40 to a predetermined height through the guide opening 411 of the tube portion 40.

The operator inserts the cylinder member 10 between the index finger and the middle finger, and presses the pressure plate 201 of the plunger 20 with the thumb under the support of the handle 104 of the cylinder member 10 to press the plunger 20 into the cylinder member ( 10) Can move inside. When the plunger 20 is linearly moved along the path 11 of the cylinder member 10, the wire 50 connected to the plunger 20 is moved, and the end of the wire 50 is moved due to the movement of the wire 50. The blade portion 60 attached to it can be moved while being guided by the guide opening 411 of the pipe portion 40.

2 is a partial cross-sectional view of the capsulotomy according to the present invention.

2, the plunger 20 can include a body 210 and an axis 220 extending from the body 210. The body 210 can slide along the inner surface 111 of the path 11 of the cylinder member 10. The shaft 220 is relatively thinner than the body 210 and may protrude a predetermined length in the direction of movement of the plunger 20 from the body 210. The cross-sectional shape of the body 210 can follow the cross-sectional shape of the path 11 of the cylinder member 10.

The compression coil spring 70 may be accommodated in the inner space of the cylinder member 10. The compression coil spring 70 may be disposed between the body 210 of the plunger 20 and the tube connecting member 30. The shaft 220 of the plunger 20 may pass through the compression coil spring 70. Both ends of the compression coil spring 70 may be supported by the end 212 and the pipe connecting member 30 of the body 210 of the plunger 20, respectively. The plunger 20 can be moved while receiving elasticity from the compression coil spring 70. Accordingly, when the operator presses the pressure plate 201 of the plunger 20 to move the plunger 20 to the inside of the cylinder member 10, the operator exerts more force than necessary on the pressure plate 201 of the plunger 20. In this case it serves to buffer the force, thereby, there is an effect that can prevent the accident caused by the excessive force is applied to the pressing plate 201 of the plunger 20.

The cylinder member 10 may have an elastic bar 112 of a predetermined length extending obliquely from the inner side 111 toward the front opening 101. The body 210 of the plunger 20 may have a space 212 that forms the locking

jaws

213 and 214 that are blocked forward and backward. Before the plunger 20 is moved, the elastic bar 112 of the cylinder member 10 is accommodated in this space 212 and between the front locking jaw 213 and the rear locking jaw 214 of the plunger 20. Can be deployed. When the plunger 20 is moved toward the front opening 101 of the cylinder member 10, the elastic bar 112 of the cylinder member 10 is moved by the rear locking jaw 214 of the plunger 20 to the inner surface 111. Sag). However, the front locking jaw 213 of the plunger 20 is caught by the end portion of the elastic bar 112 of the cylinder member 10, so that the plunger 20 is separated from the rear opening 102 of the cylinder member 10. Can't be.

The pipe connecting member 30 may have a fixing portion 33 fitted into a hole formed in the cylinder member 10. The fixing part 33 can help to firmly fix the pipe connecting member 30 to the cylinder member 10. However, the fixing part 33 of the pipe connection member 30 is not necessarily limited to this, It may be set as any embodiment as long as it can fix the pipe connection member 30 to the cylinder member 10 firmly.

Referring to FIG. 3, the pipe connecting member 30 may be partially inserted into the front opening 101 of the cylinder member 10 and fixed to the cylinder member 10.

The pipe connecting member 30 may have a passage 31 connecting both the cylinder member 10 and the pipe portion 40 and opening both sides of the path 11 of the cylinder member 10 and the pipe portion 40. have. The pipe part 40 may be partially inserted into and fixed to the front opening 301 of the pipe connecting member 30.

One end of the wire 50 is bound to the plunger 20 and can be inserted into the pipe portion 40 via the passage 31 of the pipe connecting member 30. Thereby, by receiving a force from the plunger 20, it can move to the same direction as the movement direction of the plunger 20.

The passage 31 of the pipe connecting member 30 may have a nozzle shape in which the front forms a passage relatively narrower than the rear. The tube connection member 30 may have a rear passage 314 and a front passage 313 in communication with the rear passage 314 and relatively narrower than the rear passage 314. The rear passage 312 can guide the movement of the shaft 220 of the plunger 20 to which the wire 50 is connected. The front passage 311 can guide the movement of the wire 50.

The pipe connection member 30, the pipe part 40 and the wire 50 may be composed of one disposable separation module. For example, the operator can replace the disposable separation module used from capsular bag incision 100 with an unused disposable separation module.

Figure 4 is a perspective view of the bent portion of the tube portion according to the present invention, Figures 5a and 5b are a plan view and a rear view of the tube portion, respectively.

4, 5A, and 5B, the bent portion 410 corresponding to a predetermined length from the free end 401 of the tube portion 40 is bent in a circular shape, and the free end 401 is connected to the tube portion 40. Not in contact with the bent portion 410 has a circular open one side. The bent portion 410 may be formed with a guide opening 411 along the passage. The bend 410 may be spiral. A blade portion 60 may be attached to an end portion of the wire 50 inserted into the pipe portion 40. The blade portion 60 may protrude outward from the outer surface 412 of the tube portion 40 to a predetermined height through the guide opening 411 of the tube portion 40. The blade portion 60 also protrudes diagonally for a smooth incision of the capsular bag. When the plunger 20 is linearly moved, the wire 50 is moved while being guided by the pipe portion 40, and the blade portion 60 is moved by the movement of the wire 50 so that the blade portion 60 is the guide opening 411 of the pipe portion 40. Can be moved with guidance. When the wire 50 is moved while being guided by the passage of the pipe part 40, the pipe part 40 is guided so that the wire 50 is not twisted by the movement path of the blade part 60 fixed to the end of the wire 50. An opening 411 can be formed. The blade portion 60 may be upwardly pointed in shape. The blade part 60 may have a cutting edge in one movement direction, and may have a cutting edge in both movement directions as needed.

The pipe part 40 may be formed of a material (eg, stainless steel) capable of securing corrosion resistance and rigidity. The wire 50 may be formed of a material (eg tungsten) having excellent flexibility and straightness. The outer diameter of the tubular portion 40 may be 10 mm or less (eg 5-6 mm). The width W of the guide opening 411 of the pipe section 40 may be 0.3 mm or less (eg 0.25 mm). The straight line distance D between one end and the other end of the guide opening 411 of the pipe part 40 may be 0.1 mm or less (for example, 0.75 mm). The height H of the portion protruding outward from the outer surface 412 of the tube portion 40 in the blade portion 60 may be at least 0.1 mm (eg 0.25 mm).

In addition, if the incision is less than 4.0 mm in diameter, the intraocular lens may be located posteriorly, resulting in hyperopic, and in the incision of the capsular bag more than 6.0 mm in diameter, the intraocular lens may be located forward. Myopic may occur. As such, incision to the proper size of the capsular bag is an important factor in cataract surgery, with an incision of 4.0 mm to 6.0 mm in diameter being preferred. Accordingly, the size of the circle formed by the bent portion is preferably about 4.0 mm to 6.0 mm in diameter.

Referring to FIG. 6, the operator may finely incision the capsular bag 501 from 2.2 mm to 2.7 mm using a separate incision member (not shown) (a). The operator can insert the bent portion 410 between the capsular bag 501 and the lens by inserting the free end 401 of the tubular portion 40 through the micro-incision gap 502 and then rotating the bent portion 410. (B). The free end 401 of the tubular part 40 may be shaped to be bent outward in a circle to prevent it from being easily retracted after being fitted into the micro-incision gap 502 of the capsular bag 501. If the bend 410 of the tubular part 40 is spiral, it may be easy to insert between the capsular bag 501 and the lens. When the operator pushes the plunger 20 into the cylinder member 10, the blade portion 60 of the bent portion 410 of the tube portion 40 can move while cutting the

lens cap

501, 503, The capsular bag 501 may be cut in a circle (c).

In addition, the capsular bag incision 100 can be made disposable to prevent the risk of bacterial infection due to reuse. In view of this, when the operator presses and uses the pressing plate 201 of the plunger 20, the plunger 20 is pressed, that is, the plunger 20 is kept in the interior of the cylinder member 10 so that reuse is possible. Can be made to prevent

Meanwhile, in the detailed description of the present disclosure, specific embodiments have been described, but various modifications may be made without departing from the scope of the present disclosure. Therefore, the scope of the present disclosure should not be limited to the described embodiments, but should be determined not only by the scope of the following claims, but also by the equivalents of the claims.

[ Description of the Code ]

100: capsulotomy

10: cylinder member

20: plunger

30: pipe connection member

40: tube

50: wire

60: blade part

70: compression coil spring

The capsular bag incision according to the present invention can be incised cleanly in a circular shape and an appropriate size through simple manipulation to prevent radial rupture and lead to safe cataract surgery.

Claims

As a capsulotomy,

A cylinder member having openings formed at both ends thereof;

A plunger inserted into the cylinder member through an opening formed at one end of the both ends and movable along the interior of the cylinder member;

A part or all of which is located inside the cylinder member, the one end of which is bound to the plunger, which is movable in the same direction as the moving direction of the plunger, and the other end of which has a blade portion protruding at a predetermined height; And

A movement path of the wire is formed therein, and an opposite end of the end where the wire is accommodated constitutes a free end, and a bent portion is formed by a predetermined length from the free end, and the bent portion is provided with respect to the movement of the blade portion. A capsular bag incision comprising a duct with a guide opening defined.
The method of claim 1,

Capsular bag incision that connects the cylinder member and the tubular part, the tubular connection member having a passage for communicating the interior of the cylinder member and the tubular part.
The method of claim 2,

And a compression coil spring received inside the cylinder member and supported at an end of the plunger and an end of the tubular connection member.
The method of claim 1,

The bent portion is formed in a circular shape, the diameter of the bent capsular bag incision is 5.0 mm to 6.0 mm.
The method of claim 1,

The blade portion of the capsular incision protruding obliquely in the outward direction of the tube portion.
The method of claim 1,

Capsular bag incision of 0.2 mm in diameter.