JPH07213543A - Auxiliary appliance for inserting/fastening intraocular lens - Google Patents

Abstract

PURPOSE:To provide an auxiliary appliance for intracapsular insertion of an intraocular lens and also for fastening and adjusting the position of the lens through interlocking in the capsule with a holding arm section. CONSTITUTION:At three locations spaced nearly at an equidistance from each other along the circumference of a ring-like body 2, interlock sections 3 are formed by projecting parts of the ring-like body 2 towards the center, substantially in the shape of a cone; an insertion hole 4 is formed inside each of the projected parts.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an intraocular lens insertion fixing tool for inserting an intraocular lens into the lens capsule before inserting the lens into the lens capsule.

[0002]

2. Description of the Related Art Before inserting an intraocular lens into the lens capsule (hereinafter sometimes simply referred to as "capsule"), the lens is preliminarily inserted into the lens capsule to maintain the shape of the lens capsule. The intraocular lens insertion and fixation assisting tool (hereinafter simply referred to as "assisting device") that facilitates insertion and fixation of the intraocular lens into the capsular bag and secures and stabilizes fixation of the intraocular lens within the capsular bag. (Sometimes abbreviated)
For example, those disclosed in JP-A-4-364840 or JP-A-5-58118 are known.

The auxiliary tool disclosed in Japanese Unexamined Patent Publication No. 4-364840 has, in short, a groove for engaging with a support portion of an intraocular lens on the inner peripheral side of a torus (including an elliptical shape). It is provided. That is, the support arm of the intraocular lens of the type having two curved wire-shaped support arms extended from the outer circumference of the circular lens portion is engaged with the groove to surely fix the intraocular lens to the auxiliary tool. It was done.

In the auxiliary tool disclosed in Japanese Utility Model Laid-Open No. 58118/1993, in short, the outer peripheral side of the annular body is provided with at least two corners forming indentations at the equator of the capsule. It is a thing.

If an intraocular lens of the type described above is to be inserted into the capsule without using such an assisting tool, the capsule with the lens removed has an unstable shape, so it can be installed at a desired location. Not always easy. After insertion, the support arm of the intraocular lens will be installed with the arm folded along the equator of the sac so that it contacts the sac. It is a part of the part, and therefore, a part of the inside of the sac exerts a force for expanding the sac from the inside. For this reason, the cross-sectional shape of the equatorial plane of the sac becomes not a perfect circle, and accordingly, the installation position of the intraocular lens also deviates from its original position. Since the auxiliary tool can maintain the shape of the capsule by previously inserting it into the capsule from which the crystalline lens has been removed, such an adverse effect can be prevented.

As an intraocular lens, there is a type in which a circular loop-shaped body surrounding the outside of the lens portion is fixed to a support arm (see, for example, Japanese Patent Laid-Open No. 1-285258). This type of intraocular lens is one in which a loop-shaped body corresponding to the above-mentioned auxiliary tool is previously fixed to the lens part itself, and the shape of the capsule after insertion and the stability of the installation position are good, but the insertion work is It has the drawback of being difficult. That is, since insertion is performed through an incision that is kept as small as possible, a loop-shaped body that is much larger than the lens portion is contracted and inserted, but a support arm is connected to the loop-shaped body, and Since there is a lens portion in the loop, it is not always easy to press and contract it into a desired shape, and in practice, it is a fairly difficult work. When the above-mentioned assisting tool is used, since the assisting tool is a simple loop-shaped body, it can be relatively easily deformed into an arbitrary shape, and therefore insertion is also easy. Further, insertion of an intraocular lens of a type in which a supporting arm portion is provided on the lens portion is relatively easy.

[0007]

By the way, the auxiliary tools disclosed in Japanese Patent Application Laid-Open No. 4-364840 and Japanese Utility Model Application Laid-Open No. 5-58118 both have insertion jigs (when inserting the auxiliary tools into the eye). For example, tweezers and injectors)
It was found that the work of grasping or engaging and inserting is not necessarily easy. That is, for example, when trying to insert the annulus of the assisting tool into a substantially elliptical shape from the outer peripheral side with tweezers or the like, and inserting it into the eye through a small incised portion with the short diameter part of the ellipse as the tip, It was found that if the force of grasping is not inserted while being adjusted subtly, the oval shape may collapse due to the action of the force due to contact with the living body, and at the same time, the assisting tool may separate from the tweezers. Further, for example, using an insertion jig in which the wire-shaped tip is bent to form an engaging curved portion, the engaging curved portion is put inside the annular body and the annular body is engaged from the inside. , Even when inserting by inserting the assisting tool from the incision part with the engaging part as the tip, the action of force due to contact with the living body changes variously in the process of insertion,
It was found that the shape when retracted changes rather than becomes constant, and the change in shape causes disengagement to some extent. In this case, this insertion work is an important step of the entire surgical process, but there are many other steps that require more delicate consideration, so it is extremely unlikely that any trouble will occur in this step. It may also affect the quality of the entire operation, which requires quickness and precision.

As a result of the investigation by the inventors of the present invention, the main reason is that the shape of the entire circumference of the annular body that constitutes the auxiliary tool is formed to be almost uniform, and the force for bending the annular body is Since the drag force that acts on the torus acts almost uniformly over the entire circumference of the torus, the shape changes arbitrarily each time depending on which part of the torus the force acts on the living body. It was found that there is a risk of disengagement unless the force of gripping or the degree of engagement is changed according to the change.

The present invention has been made on the basis of the above-described clarification facts, and can be easily inserted and set in the capsule, and furthermore, the supporting arm portion of the intraocular lens is engaged in the capsule to fix or position it. It is an object of the present invention to provide an intraocular lens insertion / fixation assisting tool that enables easy adjustment.

[0010]

In order to solve the above-mentioned problems, an intraocular lens insertion / fixation assisting tool according to the present invention comprises: (Structure 1) a lens part and a supporting arm part for supporting this lens part in the lens capsule. Before inserting the intraocular lens provided with into the lens capsule, by inserting into the lens capsule in advance, the shape of the lens capsule is maintained to facilitate insertion and fixing work of the intraocular lens into the lens capsule. In addition, it is an intraocular lens insertion fixing aid for surely and stably fixing the intraocular lens in the lens capsule, and substantially forms a torus, and an insertion jig or a jig is provided on any of the torus. A configuration having an engaging portion that engages a supporting arm portion of an intraocular lens, and (Configuration 2) An intraocular eye including a lens portion and a supporting arm portion that supports the lens portion in the lens capsule. Before inserting the lens into the lens capsule, By inserting the lens into the lens capsule, the shape of the lens capsule is maintained to facilitate the insertion and fixing work of the intraocular lens into the lens capsule, and the fixation of the intraocular lens inside the lens capsule is ensured and stable. An intraocular lens insertion and fixing aid that substantially forms a torus, and the drag force that acts on the force that bends the torus is greater than that of a certain part of the torus compared to other parts. And a structure 1 that is formed to be strong or weak.
As an aspect of (Structure 3), in the intraocular lens insertion fixation assisting tool of Structure 1, in the engaging portion, the drag force acting on the force for bending the torus is larger than that of the other parts of the torus. A structure characterized by being formed to be strong, and (Structure 4) In the intraocular lens insertion fixation assisting tool of Structure 1, the engaging portion acts against a force for bending the torus. The constitution is characterized in that the drag force is formed so as to be weaker than other parts of the torus, and as an aspect of the constitution 3, (constitution 5) In the tool, the engaging portion is formed thicker than the other parts of the torus, (Structure 6) In the intraocular lens insertion fixing aid of Structure 3, The joint is thicker than the other parts of the torus, and is thicker than that. A configuration in which a through hole is formed in the position, (Configuration 7) In the intraocular lens insertion fixation assisting tool of configuration 3, the engaging portion has a protrusion on a part of the annular body. A structure characterized by being provided, and (Structure 8) In the intraocular lens insertion fixation assisting tool of structure 3, the engaging portion is a circular ring part having a substantially uniform thickness. A configuration characterized in that it is configured to project toward the center of the ring body or to project toward the outside,
Further, as a mode of Configuration 4, (Configuration 9) In the intraocular lens insertion fixing auxiliary tool of Configuration 4, the engaging portion is formed to be thinner than other portions of the annular body. This configuration 9
As a mode of (Structure 10), in the intraocular lens insertion fixing aid of Structure 9, the engaging portion is formed by removing a part of the annular body to form a concave portion in the annular body. It has a characteristic configuration.

[0011]

According to the above configuration 1, when the insertion jig or the intraocular lens supporting arm portion is engaged with any one of the annular members, the insertion jig is inserted into the eye. Since the insertion jig can be inserted by engaging with this engaging part, even if the torus is deformed to some extent by the force acting between the living body and the auxiliary tool at the time of insertion, the insertion jig assists It is possible to prevent the tool from coming off. Moreover, after the insertion into the capsule, it becomes possible to engage the supporting arm of the intraocular lens by using this engaging portion, or to easily fix or adjust the position thereof. It has become possible to eliminate the need to provide a position adjusting hole in the inner lens itself.

Further, according to the configuration 2, the resistance acting on the force for bending the torus is formed so that a specific portion of the torus is stronger or weaker than other portions. When inserting, for example, if the torus is pinched from the outer peripheral side with tweezers etc., the weak part easily bends and becomes a substantially elliptical shape, and this shape has a gripping force even when inserted into the eye. It was confirmed that the adjustment was kept constant without fine adjustment. Further, for example, using an insertion jig in which the wire-shaped tip is bent to form an engaging curved portion, the engaging curved portion is put inside the annular body and the annular body is engaged from the inside. Also, when inserting by inserting the assisting tool from the incision part with the engaging part as the tip, similarly, the weak part easily bends into a substantially elliptical shape during insertion, and this shape is It was confirmed that the force acting on the auxiliary tool during the insertion process was kept constant even if the force was changed to some extent. This significantly facilitates the insertion work.

According to the configurations 3 and 4, the configurations 1 and 2
With the synergistic effect of the action of and, the insertion work becomes much easier, and after inserting into the capsule, use this engaging part to engage the support arm of the intraocular lens, or to fix or adjust its position. This makes it possible to eliminate the need for providing a hole for position adjustment in the intraocular lens itself as in the conventional case.

According to the constitutions 5, 7, and 8, it is possible to obtain an assisting tool having the same working effect as that of the assisting tool of the constitution 3 with a simple structure.

According to the structure 6, the engaging portion is formed thicker than the other portion of the annular body, and the through hole is formed in the thickened portion, so that the engagement can be made more reliable. It became possible.

According to the constructions 9 and 10, it is possible to obtain an auxiliary tool having the same operational effect as the auxiliary tool of the construction 4 by a simple structure.

[0017]

【Example】

(First Embodiment) FIG. 1 is a plan view of an intraocular lens insertion and fixation assisting tool according to a first embodiment of the present invention, FIG. 2 is a sectional view taken along the line AA of FIG. 1, and FIG. FIG. 4 is a cross-sectional view taken along the line B, and is an explanatory view of a method of inserting the auxiliary tool into the eye. The first embodiment will be described below with reference to these drawings.

1 to 3, reference numeral 1 denotes an intraocular lens insertion fixing aid (hereinafter simply referred to as an assisting device),
Reference numeral 2 is an annular body, reference numeral 3 is an engaging portion, reference numeral 4 is a through hole, reference numeral 5 is an insertion jig, reference numeral 7 is an intraocular lens, reference numeral 7a is a lens portion, and reference numeral 7b is a supporting arm portion.

The annular body 2 is formed by forming polymethylmethacrylate into an annular shape having a diameter of about 10 mm, and three engaging portions 3 are formed at substantially equal intervals in the circumferential direction of the annular ring.

As shown in FIG. 2, the sectional shape of the portion other than the portion where the engaging portion 3 of the annular body 2 is formed is a square shape with one side of 0.2 mm.

The engaging portion 3 is formed by projecting a part of the torus 2 into a mountain shape toward the center of the torus and making it thicker by that amount, and forming the through hole 4 in the thickened portion. Is. As shown in FIG. 3, the maximum width (width in the radial direction) of the thickly formed portion is 0.55 mm, the thickness is 0.2 mm like the other portions, and the diameter of the through hole 4 is 0. It is 3 mm.

To insert the assisting tool 1 of this embodiment into the eye, an insertion jig 5 having a wire-like tip bent to form an engaging curved portion is used as shown in FIG. Then, the engaging curved portion is inserted into the through hole 4 and engaged, and the auxiliary tool 1 is inserted from the incision portion 6a with the engaging portion as a tip. When the insertion is started, the auxiliary tool 1 is gradually deformed into an elliptical shape corresponding to the size of the incision 6a, and is inserted into the eye through the incision 6a having a smaller dimension than the diameter of the auxiliary tool 1. In that case, the resistance acting on the force to bend the torus 2 is stronger in the portion where the engaging portion 3 is formed than in other portions, so that the portion where the resistance is weak is easily inserted from the beginning of insertion. It deforms, and after that, its shape is maintained and the shape does not change significantly. Therefore, the auxiliary tool 1 is less likely to come off the insertion jig 5 during the insertion, and the insertion operation can be easily performed.

After inserting the assisting tool 1 into the eye,
Although the intraocular lens 7 is inserted, as shown in FIG. 1, by inserting the distal end portion of one supporting arm 7b of the intraocular lens 7 into the through hole 4, the intraocular lens 7 is placed in the capsule. , The auxiliary tool 7 is loosely fixed, then the tip of the insertion jig 5 is inserted into the other through hole 4, and the auxiliary tool 1 is moved, so that the jig is kept in the capsule without directly contacting the lens portion 7b with the jig. It is also possible to adjust the position of the intraocular lens 7.

(Second Embodiment) FIG. 5 is a plan view of an intraocular lens insertion / fixation assisting tool according to a second embodiment of the present invention, and FIG. 6 is an explanatory view of a method of inserting the assisting tool into the eye.

This embodiment has the same structure as that of the first embodiment except that the number of the engaging portions 3 in the first embodiment is four, and therefore the common parts are designated by the same reference numerals and their description is omitted. Is omitted.

To insert the assisting tool 1 of this embodiment into the eye, as shown in FIG. 6, the annular body 2 of the assisting tool 1 is sandwiched from the outer peripheral side with tweezers 5a or the like to form a substantially elliptical shape. . In that case, the place where the tweezers 5a sandwich is the forming portion of the engaging portion 3. Then, the ellipse with the minor axis as the tip is inserted into the eye through the incision. In that case, the resistance acting on the force that bends the torus 2 is stronger than the other parts where the engaging portion 3 is formed, so that the holding force of the tweezers 5a makes the resistance oval. After that, from the start to the end of insertion, the shape is maintained and the shape does not change significantly. Therefore, the auxiliary tool 1 is less likely to come off the insertion jig 5 during the insertion, and the insertion work can be easily performed. Further, in this embodiment, as shown in FIG. 5, the distal ends of both supporting arm portions 7a of the intraocular lens 7 can be inserted into the through holes 4 and engaged more reliably in the capsule. Also in this embodiment, the insertion can be performed by the same method as shown in FIG. Further, outside the eye, the tip of the support arm portion 7b of the intraocular lens may be previously inserted into the through hole 4 of the auxiliary tool, and the auxiliary tool may be inserted together with the intraocular lens. In this case, as compared with the disc type intraocular lens of the type in which the assisting tool and the intraocular lens are integrated, the torus 2 and the intraocular lens 7 are not completely coupled to each other, so that it is free. Easy to insert as it can be deformed. After the insertion, the support arm 7b is inserted from the through hole 4.
It is also possible to remove it to contact the inner peripheral surface of the torus 2.

(Third Embodiment) FIG. 7 is a plan view of an intraocular lens insertion / fixation assisting tool according to a third embodiment of the present invention, and FIG. 8 is a sectional view taken along line DD of FIG.

In this embodiment, the engaging portion 33 is formed by forming a thicker portion than the other portions of the torus 2 at two symmetrical positions across the center of the torus 2. .

As shown in the sectional shape of FIG. 8, the engaging portion 33 is formed thick by projecting a part of the torus in a direction perpendicular to the center of the torus and a plane including the torus. It is a thing.

Also in this embodiment, as in the first and second embodiments described above, an insertion jig is engaged with the engaging portion, or an oval shape is formed by sandwiching the engaging jig with tweezers from the outside of the engaging portion. It can be inserted into the eye and similar effects can be obtained.

(Fourth Embodiment) FIG. 9 is a plan view of an intraocular lens insertion and fixation assisting tool according to a fourth embodiment of the present invention.

In this embodiment, the protrusions 34 are formed at two symmetrical positions with the center of the torus 2 interposed therebetween.

Also in this embodiment, as in each of the above-described embodiments, the insertion jig is engaged with the engaging portion 34, or
From the outside of the portion where the engaging portion is formed, it can be inserted into the eye by being pinched with tweezers to form an elliptical shape and similar effects can be obtained.

(Fifth Embodiment) FIG. 10 is a plan view of an intraocular lens insertion and fixation assisting tool according to a fifth embodiment of the present invention.

In this embodiment, three engaging portions 35 are provided at substantially equal intervals in the circumferential direction of the annular body 2, and the engaging portions 35 are provided.
Is formed by projecting a part of an annular body having a substantially uniform thickness toward the center of the annular body. By thus configuring, the drag force acting on the force that bends the torus 2 without changing the thickness itself of the torus,
The portion where the engaging portion 35 is formed can be made stronger than other portions, and at the same time, the action of engaging the insertion jig or the like can be obtained.

Also in this embodiment, as in each of the above-described embodiments, the insertion jig is engaged with the engaging portion, or the oval shape is inserted from the outside of the engaging portion with tweezers and inserted into the eye. It is possible to obtain the same effect.

(Sixth Embodiment) FIG. 11 is a plan view of an intraocular lens insertion and fixation assisting tool according to a sixth embodiment of the present invention.
FIG. 12 is an enlarged view of part C in FIG. 11.

In each of the above-mentioned embodiments, the reaction force against the force for bending the annular body 2 is such that the engaging portion is strong and the other portions are weak, but in this embodiment, the relationship is reversed. With this, a part of the torus 2 is removed to form a recess in the torus 2 to form an engaging part 36, and the engaging part 36 is made thinner than the other parts of the torus 2. It was formed.

The engaging portion 36 may have a substantially U-shape as shown in an enlarged view of FIG. 12, or may have a substantially V-shape as shown in FIG. It may be a rectangular shape or a substantially rectangular shape as shown in FIG.

According to this embodiment, as shown in FIG. 11, when the insertion jig 5 is engaged with the vicinity of the engaging portion 36 and pulled into the eye during insertion, the engaging portion Since the resistance of 36 to the bending force is weaker than that of the other parts, this part bends at the start of insertion into a substantially constant shape, and maintains that shape until the insertion is completed.

Also in this embodiment, as in each of the above-described embodiments, an insertion jig is engaged with the engaging portion, or an oval shape is inserted from the outside of the engaging portion with tweezers and inserted into the eye. It is possible to obtain the same effect.

In each of the above-mentioned embodiments, the case where the auxiliary tool 1 is made of polymethylmethacrylate has been taken as an example, but the auxiliary tool 1 can be inserted into the sac and stably fixed in the sac. As long as it has elasticity, biocompatibility, shape stability, etc., it is suitable for ophthalmology,
For example, as synthetic resins, water-absorbing polymers such as hydroxyethylmethacrylate, N-vinylpyrrolidone and vinyl alcohol, biopolymers such as collagen, elastomers such as silicone rubber and acrylic rubber, and mixtures or copolymers thereof are used. To be

Further, it may be a synthetic resin such as polyethylene, polypropylene vinyl chloride, polyvinylidene fluoride having poor transparency and used as a usual medical material, or a hard synthetic resin such as polymethylmethacrylate. Elasticity can be imparted by appropriately selecting the shape and thickness, and the material can be used as an auxiliary material.

Further, although the auxiliary tool 1 of each of the above-mentioned embodiments is made of a single material and integrally formed for ease of manufacturing,
In the present invention, the auxiliary tool may be formed by forming a plurality of parts from a plurality of materials without being limited to a single material and an integral structure. The auxiliary tool of the present invention is easily manufactured by molding or the like.

[0045]

As described in detail above, the intraocular lens insertion and fixing aid of the present invention substantially forms an annular body, and any one of the annular bodies supports the insertion jig or the intraocular lens. It is characterized by having an engaging portion that engages the arm portion, and is substantially a torus, and the drag force that acts on the force to bend the torus is specific to other parts of the torus. It is characterized in that it is formed so as to be stronger or weaker than that of the part, so that when the auxiliary tool is inserted by grasping or engaging it with an insertion jig or the like, it acts on the auxiliary tool. It reduces the possibility that the assisting tool will be deformed into an arbitrary shape by the force of, and prevents the gripping and disengagement due to the deformation to facilitate the insertion work.
In addition, the intraocular lens insertion / fixation assisting tool is capable of engaging the support arm portion of the intraocular lens in the capsule and easily fixing and adjusting the position thereof.

[Brief description of drawings]

FIG. 1 is a plan view of an intraocular lens insertion fixing aid according to the first embodiment of the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG.

FIG. 3 is a sectional view taken along line BB of FIG.

FIG. 4 is an explanatory diagram of a method of inserting an auxiliary tool into the eye.

FIG. 5 is a plan view of an intraocular lens insertion / fixation assisting tool according to a second embodiment of the present invention.

FIG. 6 is an explanatory diagram of a method of inserting the auxiliary tool into the eye.

FIG. 7 is a plan view of an intraocular lens insertion fixing aid according to a third embodiment of the present invention.

8 is a cross-sectional view taken along the line DD of FIG.

FIG. 9 is a plan view of an intraocular lens insertion / fixation assisting tool according to a fourth embodiment of the present invention.

FIG. 10 is a plan view of an intraocular lens insertion fixing aid according to the fifth embodiment of the present invention.

FIG. 11 is a plan view of an intraocular lens insertion fixing aid according to the sixth embodiment of the present invention.

FIG. 12 is an enlarged view of part C of FIG.

FIG. 13 is a partially enlarged view of a modified example of the sixth embodiment.

FIG. 14 is a partially enlarged view of a modified example of the sixth embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Intraocular lens insertion fixing auxiliary tool (auxiliary tool), 2 ... Torus, 3, 33, 34, 35, 36 ... Engaging part, 4 ... Through hole, 5 ... Insertion jig, 5a ... Tweezers, 6 ... living body, 7 ...
Intraocular lens, 7a ... Lens part, 7b ... Support arm part.

Claims (10)

[Claims] 1. An intraocular lens having a lens portion and a supporting arm portion for supporting the lens portion in the lens capsule is inserted into the lens capsule in advance before the lens is inserted into the lens capsule. An intraocular lens insertion fixing aid for maintaining the shape of and facilitating the insertion and fixing work of the intraocular lens in the lens capsule and securely and stably fixing the intraocular lens in the lens capsule. An intraocular lens insertion-fixing aid characterized in that it has a substantially annular body, and has an insertion jig for engaging an insertion jig or a supporting arm portion of the intraocular lens on either of the annular bodies. 2. An intraocular lens having a lens part and a supporting arm part for supporting the lens part in the lens capsule is inserted into the lens capsule in advance before the lens is inserted into the lens capsule. An intraocular lens insertion fixing aid for maintaining the shape of and facilitating the insertion and fixing work of the intraocular lens in the lens capsule and securely and stably fixing the intraocular lens in the lens capsule. It is substantially a torus, and the resistance acting against the force that bends the torus is formed so that a specific part of the torus is stronger or weaker than other parts. A featured intraocular lens insertion and fixing aid. 3. The intraocular lens insertion fixing aid according to claim 1, wherein the engagement portion has a reaction force acting on a force for bending the torus compared to other portions of the torus. An intraocular lens insertion and fixing aid, which is formed to be strong. 4. The intraocular lens insertion fixing aid according to claim 1, wherein the engagement portion has a drag force acting on a force for bending the torus compared to other portions of the torus. An intraocular lens insertion fixing aid, which is formed so as to be weak. 5. The intraocular lens insertion fixing aid according to claim 3, wherein the engagement portion is formed thicker than other portions of the annular body. Insertion fixing aid. 6. The intraocular lens insertion fixing aid according to claim 3, wherein the engagement portion is formed thicker than other portions of the annular body,
An intraocular lens insertion and fixing aid, characterized in that a through hole is formed in the thickly formed portion. 7. The intraocular lens insertion fixing aid according to claim 3, wherein the engagement portion is a torus provided with a protrusion on a part thereof. Fixing aid. 8. The intraocular lens insertion fixing aid according to claim 3, wherein the engaging portion projects a part of the annular body having a substantially uniform thickness toward the center of the annular body. Alternatively, the intraocular lens insertion fixing aid is characterized in that it is projected outward. 9. The intraocular lens insertion fixing aid according to claim 4, wherein the engagement portion is formed to be thinner than other portions of the annular body. Insertion fixing aid. 10. The intraocular lens insertion fixing aid according to claim 9, wherein the engaging portion is formed by removing a part of the annular body to form a concave portion in the annular body. A special tool for inserting and fixing intraocular lenses.