JP4500959B2 - Lens insertion device for intraocular insertion - Google Patents

Description

  The present invention relates to a deformable intraocular insertion lens that is inserted in place of the crystalline lens after extraction of the lens due to a cataract, a deformable visual acuity correction lens that is inserted into the eye for the purpose of only visual acuity correction, and the like. The present invention relates to an insertion device for inserting a deformable intraocular lens into an eye.

In 1949, Ridley transplanted an artificial lens, i.e., an intraocular lens, into a human eye for the first time instead of a clouded lens during cataract surgery, and then implanted an intraocular lens as a treatment for cataracts. Things have been done widely.
As disclosed in Japanese Patent Application Laid-Open No. 58-146346, insertion into an eye using a deformable elastic body having at least an optical part having a predetermined memory characteristic, which can be inserted through a small incision made in an eyeball. A deformable intraocular lens has been invented that has a support portion made of a different member that supports the optical portion in the eye using an optical lens, an elastic body in which at least the optical portion has a predetermined memory characteristic, or the like.

In the Japanese Patent Application Laid-Open No. 41212350 etc., the applicant of the present invention is deformed by compressing, winding, bending, stretching, or folding the optical part of the deformable intraocular lens. An invention of an insertion device has been disclosed in which the intraocular lens is implanted into the eye through a small incision made in the eyeball, deformed from the previous large shape to a small shape. With the invention of the insertion device, the implantation operation of the intraocular lens has also been accurately and simplified.
That is, as shown in FIG. 1, a deformable intraocular lens 1 is formed on the outer periphery of a circular optical unit 2 formed of a deformable elastic body having predetermined memory characteristics. The invention was invented in which a base portion 3a of a pair of support portions 3 formed of a flexible material is embedded and fixed, a linear protrusion 3b of the support portion 3 is curved, and the two support portions 3 are arranged symmetrically. .
In recent years, as in FIG. 1, a pair of support portions integrally formed of the same elastic body as the optical portion are arranged on the outer periphery of a circular optical portion formed of a deformable elastic body having predetermined memory characteristics. There has also been developed a configuration in which the linear protrusions of the support part are bent and the two support parts are arranged symmetrically (not shown).

2 is a partially cutaway perspective view of a conventional deformable intraocular lens insertion instrument, FIG. 3 is an enlarged perspective view of a main part of an insertion cylinder used in the insertion instrument, and FIG. 4 is an insertion cylinder. FIG. 5 is a cross-sectional view taken along line AA of FIG. 4.
In FIG. 2, 11 is an instrument main body, 12 is an extrusion shaft, 13 is a male screw cylinder, and 14 is an extrusion mechanism.
Reference numeral 18 denotes a holding member, which includes a lens installation portion 16 having a hinge portion 15 as shown in an enlarged view in FIG. 3, and has a configuration in which an insertion tube 17 projects from the distal end side of the lens installation portion 16. Further, a guide portion 24 is formed on the inner surface of the insertion tube 17 for restricting the rotation of the insertion tube 17 around the central axis with respect to the intraocular insertion lens 1.
Further, a slit 17b is formed in one side portion of the distal end portion 17a of the insertion tube along the axial direction so as to communicate the inside and outside of the insertion tube 17. Further, the lens installation portion 16 connects the lower edge portions of the fixed half cylinder 19 and the movable half cylinder 20 by a hinge portion 15, and the fixed and movable presser plate 21 is fixed on the fixed and movable half cylinders 19 and 20. , 22 are projected.

In the conventional example configured as described above, the intraocular lens 1 is installed in the lens installation portion 16 of the holding member 18 and is folded small when loaded into the insertion instrument body.
When the intraocular insertion lens 1 is loaded in the lens installation portion 16 of the holding member 18, when the male tube 13 of the intraocular insertion lens insertion tool is turned, the push-out shaft 12 is screwed to move the intraocular insertion lens. The process of inserting into the eye begins.
The intraocular lens 1 is gradually pushed out by the distal end of the pushing shaft 12 while the rotation around the central axis of the inserting tube 17 is restricted by the action of the guide portion 24 provided on the inner surface of the inserting tube 17. When the slit 17b formed along the axial direction of the insertion tube distal end portion 17a is gradually opened when it reaches the distal end portion 17a of the insertion tube 17, it is folded on the proximal end side 17c of the insertion tube 17. The intraocular lens 1 is inserted into the eye from the open end 17d while gradually releasing the stress of the optical part 2 of the inserted intraocular lens 1 at the insertion tip 17a.
Further, the slit 17b holds the optical part 2 of the intraocular lens 1 so as to sandwich the optical part 2, thereby preventing a sudden jump into the eye and only applying stress applied to the intraocular lens 1. The intraocular insertion lens 1 is gripped from the front and back by the upper and lower cut surfaces of the slit 17b and is fastened to the insertion distal end portion 17a. In addition, the insertion speed of the intraocular lens 1 can be controlled to correspond to the forward speed of the push shaft 12.
JP 58-146346 A JP 04-212350 A JP 2003-70829 A Japanese Patent Laid-Open No. 08-038542

  However, in the above-described conventional invention, in the process of pushing the intraocular lens through the insertion tube from the distal end opening of the insertion tube during operation of the insertion tool, it is connected to the optical part of the intraocular lens and forwardly. Until the base portion of the one front support portion positioned reaches the opening end of the cylinder at the distal end portion of the insertion tube, the posture of the front support portion of the intraocular lens has not been controlled. Therefore, when the intraocular lens is inserted into the intraocular incision, as shown in FIGS. 6A to 6H, in the push-out operation with the front support portion 3b extended, the front support portion 3b is particularly preferred. When the distal end portion 3c of the optical tube 2 is pushed out from the insertion tube distal end portion 17a, a touching operation such as turning and swinging is caused by the unfolding and opening of the optical portion 2 which is folded, and the front side support portion 3b causes an intraocular movement. There was a risk of damaging the tissue. Conventionally, in order to avoid such a danger, it is necessary to control the posture of the front support portion 3b while rotating or tilting the insertion tool, and there is a problem that skill is required for the operation.

  Further, in order to avoid the danger, as shown in FIG. 7, the front end portion 3c of the front support portion 3b is bent and shortened to the optical portion 2 side so that the front support portion 3b and the optical portion 2 are substantially At the same time, there is a problem that technical skill is required that the swinging operation such as turning and swinging of the front support portion 3b must be avoided by opening the front support portion 3b at the same time.

The present invention is intended to solve the above problems, the front side supporting portion of the front side intraocular lens to be extruded in a state where the support portion stretched out, is positioned within the inner diameter surface of the insertion tube It is not necessary to adjust the posture of the front support part by rotating and tilting the insertion tool during treatment, and the special condition that the tip part of the front support part must be bent toward the optical part side. It is an object of the present invention to provide an insertion device for an intraocular lens that can reduce the burden of operation skill in the treatment without requiring an installation operation.

In order to achieve the above-mentioned object, the invention according to claim 1 is to reduce the shape of a deformable intraocular lens comprising an optical part and a pair of linear support parts protruding symmetrically to the optical part. in deformed insertion tool intraocular lens inserting the intraocular lens into the eye through the pair of the insertion tube in a state of being positioned before and after the insertion direction of the support portion is the eye in the lens, the insertion tube A holding portion that holds the support portion when the one support portion located in front of the intraocular lens protrudes from the opening end portion of the insertion tube at the distal end portion of the insertion tube from the distal end portion of the insertion tube The holding portion extends in the longitudinal direction of the cylinder, and the holding portion holds the one supporting portion over the entire length until a connection base portion with the optical portion of the one supporting portion reaches the opening end portion. It is characterized by having a possible length.

The invention of claim 2 is the insertion tool intraocular lens of claim 1, wherein said holding unit is characterized in that the distal end of the insertion tube is a half cylinder formed on one body .

The invention according to claim 3, in the insertion instrument intraocular lens of claim 1, wherein said holding portion has one end fixed to the outer periphery of the distal end portion of the insertion tube, the other end of the insertion tube characterized in that from the front end opening end is halved barrel separate structure extending forwardly.

The invention of claim 4, claims 1 insertion tool of intraocular lens according to any one of claim 3, wherein the open end on the inner surface of the insertion tube from the proximal end of the previous SL insertion tube slits formed along the axial direction toward the intraocular lens is formed to extend in the insertion tube base end side of the aperture end to the distal end portion of the guide portion and the insertion tube for guiding the extrusion direction At least one of the above is provided.

According to the insertion device for an intraocular lens of the present invention, in the process of pushing the intraocular lens through the insertion tube from the distal end opening of the insertion tube during operation of the insertion device, one support portion is an opening of the insertion tube. A holding portion for holding the support portion when protruding from the end portion is provided to extend in the longitudinal direction of the insertion tube from the distal end portion of the insertion tube, and the holding portion is an optical portion of one support portion When the insertion of the intraocular insertion lens into the intraocular incision is made, the length of the support portion can be held over the entire length until the connecting base portion reaches the opening end. , before viewed in the extrusion operation in our extended supporting portion, the front side supporting portion of the distal end insertion tube pivoting with the deployment opening of the optical portion folded upon being extruded from the tip, swinging, etc. it is possible to prevent a touching operation, Thus, the front side support portion Tissue can be avoided the danger of hurting the inner, the in order to avoid the danger, it is not necessary to control the orientation of the front side support portion while rotating or tilting the insertion instrument, the practitioner operation proficiency There is an effect that it can be performed easily and quickly even without the need for.

As a means for avoiding the risk, in particular established a tip portion of the front side support portion as previously in a state of being shortened by curved on the optical side, almost simultaneously the front side support portion and the optical portion by open, it can be improved that is required technical proficiency that must be avoided shake operation such as turning, rocking of the front side support portion.

  Hereinafter, an embodiment according to the insertion instrument for an intraocular lens of the present invention will be described.

8 is an external view of an insertion instrument main body of an intraocular lens according to the present invention, FIG. 9 is an enlarged perspective view of the holding member of FIG. 8, and FIG. 10 is an enlarged perspective view of the main part of the insertion tip of FIG. 11 is a cross-sectional view taken along the line BB of FIG. 10, FIG. 12 is an enlarged view of the main part of the insertion tip in the use state, (a) is a plan view, and (b) is a side view.
The basic configuration of the first embodiment of the present invention is substantially the same as that of the conventional insertion device for an intraocular lens described above.

  That is, the insertion instrument 10 for an intraocular lens according to the present invention includes a substantially cylindrical instrument body 11, an extrusion shaft 12 fitted to the instrument body 11, and a female screw formed on the inner peripheral surface of the instrument body 11 ( (Not shown) includes a push-out mechanism 14 having a male threaded tube 13 screwed to it, and a holding member 18 in which an insertion tube 17 projects from the distal end side of a lens installation portion 16 having a hinge portion 15. . An attachment groove 11a is formed along the axial direction on the upper surface of the distal end of the instrument body 11, and the holding member 18 is loaded from this groove. The extrusion shaft 12 is rotatably connected to the male screw cylinder 13, and a mechanism is configured so that the rotation is restricted with respect to the instrument body 11.

  FIG. 9 is an enlarged perspective view of a holding member to be loaded at the distal end portion of the insertion instrument body of FIG. As shown in FIG. 10, the lens installation portion 16 of the holding member 18 is provided with a fixed half cylinder 19 integrally at the end of the insertion cylinder 17 and a movable half cylinder 20 facing the fixed half cylinder 19. It is provided close to the end of the insertion cylinder 17 so that it can be opened and closed, and the lower edge of the fixed half cylinder 19 and the movable half cylinder 20 are connected by a hinge portion 15, and on the fixed and movable half cylinders 19, 20 Fixed and movable presser plates 21 and 22 are projected.

The movable half cylinder 20, the hinge portion 15, and the movable presser plate 22 constitute an opening / closing mechanism. By closing the open / close mechanism, the movable presser plate 22 comes into contact with the fixed presser plate 21 and is coaxial with the insertion cylinder 17. It becomes cylindrical. By setting the intraocular lens 1 installed in the lens installation unit 16 and closing the movable presser plate 22, the intraocular lens is folded and deformed to be small.
The insertion cylinder 17 has the same diameter as the inner diameter of the cylindrical part with which the movable half cylinders 19 and 20 abut on the proximal end side 17c, and has a tapered insertion distal end part 17a at the distal end part.
The configuration described above is substantially the same as that described in Japanese Patent Application Laid-Open No. 08-038542 shown as the conventional example.

In the first embodiment of the present invention, the base portion 3a of one support portion 3 located in front of the intraocular lens 1 connected to the optical portion 2 reaches the opening end portion 17d of the insertion tube distal end portion 17a. Until then, a half-cylindrical holding portion 30 of a length that can adjust the posture of the support portion 3 of the intraocular lens 1 is integrally formed on the insertion tube distal end portion 17a of the insertion tube 17. This point is a feature of the present invention.

As shown in FIG. 12, the holding portion 30 until the coupling base portion 3a of the front side supporting portion 3 relative to the optical unit 2 reaches the open end 17d of the insertion tube tip 17a, before the intraocular lens 1 if only those satisfying minimum area and length to adjust the orientation of the square support 3, it is needless to say that the shape is arbitrary.

As a modification of the shape of the holding unit 30, the shapes shown in FIGS. 13A to 13F are conceivable.
That is, the holding portion 30 shown in FIG. 13 (a) is formed by deepening the split tube shape depth of the upper opening extending integrally with the insertion tube distal end portion 17a of the insertion tube 17, and the front support portion 3b. It is possible to keep the tip of the tube completely horizontal.
Further, the holding portion 30 shown in FIG. 13C has different heights of the corresponding side edges of the split tube shape of the upper opening so as to correspond to the support portions of different intraocular lenses. It is a thing.
In addition, the holding portion 30 shown in FIG. 13 (e) has the cylindrical portion positioned at the distal end of the cylindrical portion from above the opening end of the insertion cylindrical tip so as to correspond to the support portions of different intraocular lenses. An upper surface opening having an inclined surface that is inclined downward is formed.

  In addition, as shown in FIG. 1, the intraocular lens 1 applied to the present invention is optically mounted on the outer peripheral portion of a circular optical portion 2 formed of a deformable elastic body having predetermined memory characteristics. The base portion 3a of the pair of support portions 3 formed of a flexible material different from that of the portion 2 is embedded and fixed, the linear protrusions 3b of the support portion 3 are curved, and the two support portions 3 are arranged symmetrically. Or a pair of support portions integrally formed with the same elastic body as the optical portion on the outer peripheral portion of a circular optical portion formed of a deformable elastic body having predetermined memory characteristics as in FIG. The present invention is applied to an arrangement (not shown) in which the linear protrusions of the support portion are bent and the two support portions are arranged symmetrically.

  In the insertion instrument for intraocular insertion of the first embodiment configured as described above, when the intraocular insertion lens 1 is inserted into the eye, first, the holding member 18 is moved from the mounting groove 11a of the instrument body 11. The movable pressing plate 22 and the movable half cylinder 20 of the holding member 18 are opened, and the pair of support portions 3 of the intraocular insertion lens 1 are positioned on one side of the front and the other side of the rear, respectively. 2 is installed above the hinge portion 15 of the lens installation portion 16 with an appropriate gap, the movable presser plate 22 and the movable half tube 20 are closed, and the fixed presser plate 21 and the fixed half tube 19 are aligned. The optical part 2 is folded in two into a small shape in 19 and 20, and the holding member 18 is attached to the attachment groove 11 a of the instrument body 11.

  By rotating the male screw cylinder 13 of the push-out mechanism 14 in this holding state, the distal end portion 23 of the push-out shaft 12 causes the intraocular insertion lens 1 as shown in FIGS. It is sent out to the insertion tip 17a of the insertion tube 17 inserted into the incision.

Then, the intraocular lens 1 to be pushed out of the insertion tube 17 is supported on the front side until reaching the position of the open end 17d of the insertion tube tip 17a, as shown in FIGS. The distal end portion 3c of the portion 3b protrudes from the opening end portion 17d opening, but is guided by the holding portion 30 formed on the insertion tube distal end portion 17a, and the distal end portion 13c of the support portion is swung such as turning and swinging. Until the outer peripheral end portion of the intraocular lens 1 is restored to its old shape by the elastic restoring force and protrudes, the posture of the support portion is held horizontally, and the intraocular lens 1 is inserted into the insertion tip portion. It is discharged from the open end 17d of 17a.
Therefore, the insertion direction and insertion speed of the intraocular lens 1 can be stably controlled.

In the first embodiment, the insertion tube distal end portion 17a having a conventional shape is integrally formed with the holding portion 30 for the front support portion 3b. However, the present invention is not limited to this, and the holding portion 30 is separately provided. Of course, it may be formed in a body configuration and fixed to the insertion tube distal end portion 17a by welding / bonding or fitting one end portion.

Next, a description will be given of a second embodiment according to the insertion tool for the intraocular lens of the present invention.
The second embodiment has substantially the same configuration as that of the first embodiment described above, and the same portions are denoted by the same reference numerals, the description thereof is omitted, and differences will be mainly described.

  15 is an enlarged perspective view of the holding member 18, FIG. 16 is an enlarged perspective view of the insertion tube distal end portion 17 a formed at the distal end of the holding member 18, and FIG. 17 is a sectional view taken along the line DD in FIG. 18 (a) and 18 (b) show an enlarged plan view and an enlarged side view of a state where an intraocular lens is inserted into the insertion tube distal end portion 17a.

  In the second embodiment of the present invention, the slit 17b is formed in the insertion tip 17a of the insertion cylinder 17, and the guide section 24 for restricting the rotation of the intraocular insertion lens 1 on the inner surface of the insertion cylinder 17 during movement. An insertion device for an intraocular lens provided with a lens is shown, and the rest of the configuration is the same as that of the first embodiment.

  Therefore, according to the second embodiment having the above-described configuration, when the intraocular lens 1 is inserted into the eye, the holding member 18 is first removed from the mounting groove 11a of the instrument body 11, and the holding member 18 is removed. The movable presser plate 22 and the movable half cylinder 20 are opened, and the pair of support portions 3 of the intraocular lens 1 are positioned on the front side and the rear side, respectively, and the optical unit 2 is placed on the lens installation unit 16. An appropriate gap is provided above the hinge portion 15, the movable presser plate 22 and the movable half cylinder 20 are closed, and the fixed presser plate 21 and the fixed half cylinder 19 are aligned. 2 is folded in two into a small shape, and the holding member 18 is attached to the attachment groove 11 a of the instrument body 11.

  By rotating the male screw cylinder 13 of the push-out mechanism 14 in this holding state, the intraocular insertion lens 1 is moved to the insertion tip 17a of the insertion cylinder 17 inserted into the incision by the tip 23 of the push-out shaft 12. Sent out. At this time, the intraocular lens 1 is sent out to the insertion distal end portion 17a of the insertion cylinder 17 while the rotation around the central axis of the insertion cylinder 17 is restricted by the guide portion 24 provided on the inner surface of the insertion cylinder 17.

And as shown to (a)-(f) of FIG. 19, the intraocular lens 1 extruded in the insertion cylinder 17 in the state by which rotation around the central axis was regulated was formed in the insertion tip portion 17a. When the position of the slit 17b is reached, the outer peripheral end of the intraocular lens 1 protrudes from the slit 17b due to elastic restoring force, and the shape of the intraocular lens 1 is restored while opening the slit 17b and the insertion tip 17a. Released from the end 17d.
Therefore, when the intraocular lens 1 is sandwiched between the slits 17b, the shape can be restored to the original state, and the insertion direction and the insertion speed of the intraocular lens can be stably controlled. is there.

Next, a third embodiment of the present invention will be described.
Even in the third embodiment, similarly to the second embodiment, an intraocular having a slit 17b at the distal end portion 17a of the insertion tube 17 and a guide portion 24 provided on the inner surface of the insertion tube 17. As shown in FIGS. 20 (a) and 20 (b), the guide lens 24 is inserted into the insertion tube distal end portion 17a of the insertion tube 17 and inserted into the eye. The posture of the optical part 2 edge to which the front support part 3b is fixed with respect to the folding center Y of the optical part 2 of the optical lens 1 is controlled, and the optical part 2 edge is developed at the insertion tube tip part 17a on the opposite side. The slit 17b for opening is formed, and is connected to the optical part 2 of the intraocular lens 1 that is continuous with the guide part 24 at the opening side edge of the half cylindrical shape of the holding part 30. The guide part 25 which regulates the attitude | position of the one supporting part 3 located is provided. Has a configuration which can completely prevent the shake operation before lateral support 3 by the operation shown in (a) ~ (f) of FIG. 21.
Since the other configurations and operational effects are the same as those of the second embodiment described above, description thereof will be omitted.

Next, a fourth embodiment of the present invention will be described.
FIG. 22 shows the fourth embodiment. Like the second embodiment, FIG. 22 has a slit 17 b at the insertion tube tip 17 a of the insertion tube 17 and a guide portion 24 provided on the inner surface of the insertion tube 17. An insertion device for an intraocular lens, the difference being that the holding portion 40 provided at the insertion tube distal end portion 17a of the insertion tube 17 is formed by a separate structure, and the outer peripheral surface of the insertion tube distal end portion 17a. One end 41 is attached to the other end, and a half-cylindrical holding portion 43 with the other end 42 positioned in front of the opening end portion 17d of the insertion cylinder is provided, and the same effects as in the above-described embodiment can be exhibited. It is.

The top view which shows an example of the lens for intraocular insertion which can deform | transform. The external view which shows the insertion instrument of the conventional lens for intraocular insertion. The expansion perspective view of the holding member of FIG. The principal part expansion perspective view of the insertion front-end | tip part of FIG. AA line sectional view of Drawing 4. (A)-(h) is the side view and front view which show operation | movement explanatory drawing of the conventional insertion instrument of the lens for intraocular insertion. (A), (b) is the top view and side view which show the state which bent and installed the front-end | tip part of the front side support part in the optical instrument side in the insertion instrument of the lens for conventional intraocular insertion. 1 is an external perspective view showing a first embodiment of an insertion device for an intraocular lens according to the present invention. The expansion perspective view of the holding member of FIG. The principal part expansion perspective view of the insertion front-end | tip part of FIG. BB sectional drawing of FIG. (A), (b) is an enlarged side view and an enlarged front view of the distal end portion of the insertion tube showing the operation of the first embodiment according to the present invention. (A)-(f) is the enlarged side view and enlarged front view of each insertion cylinder front-end | tip part which show the modification of the holding | maintenance part in 1st Example by this invention. (A)-(d) is movement explanatory drawing of the lens for intraocular insertion in 1st Example of this invention. The expansion perspective view of the holding member which shows 2nd Embodiment of the insertion instrument of the lens for intraocular insertion by this invention. The principal part expansion perspective view of the insertion front-end | tip part of FIG. The CC sectional view taken on the line of FIG. (A), (b) is an enlarged side view and an enlarged front view of the distal end portion of the insertion tube showing the operation of the second embodiment according to the present invention. (A)-(f) is an enlarged side view and an enlarged front view of an insertion tube tip part showing operation of the 2nd example by the present invention. (A), (b) is the enlarged side view and front view which show the modification of the holding | maintenance part which shows 3rd Embodiment of the insertion instrument of the lens for intraocular insertion by this invention. (A)-(f) is an enlarged side view and an enlarged front view of the insertion tube distal end portion showing the operation of the third embodiment according to the present invention. The expansion perspective view which shows the modification of the holding | maintenance part which shows 4th Example of the insertion instrument of the lens for intraocular insertion by this invention.

DESCRIPTION OF SYMBOLS 1 Deformable intraocular lens 2 Optical part 3 Support part 11 Instrument main body 12 Extrusion shaft 13 Male thread cylinder 14 Extrusion mechanism 15 Hinge part 16 Lens installation part 17 Insertion cylinder 17a Insertion cylinder front-end | tip part 17b Slit 17c Base end part 17d Opening end 18 Holding member 21 Movable presser plate 22 Movable presser plate 24 Guide portion 3c Front end portion 30, 40 holding portion of front support portion

Claims (4)

A deformable intraocular insertion lens composed of an optical part and a pair of linear support parts protruding symmetrically to the optical part is deformed into a small shape, and the pair of support parts includes the pair of support parts. In an insertion device for an intraocular lens that is inserted into the eye through the insertion tube in a state of being positioned before and after the insertion direction of the intraocular lens,
A holding portion that holds the support portion when one support portion located in front of the intraocular lens protrudes from the opening end portion of the insertion tube at the tip portion of the insertion tube is a tip portion of the insertion tube Provided to extend in the longitudinal direction of the insertion tube, and the holding portion extends to the full length of the one support portion until the connection base portion with the optical portion of the one support portion reaches the opening end portion. An insertion device for an intraocular lens having a length that can be held over . The holding portion, the insertion instrument intraocular lens of claim 1, wherein the a half cylinder formed on one body to the distal end of the insertion tube. The holding portion includes a feature that one end fixed to the outer periphery of the distal end portion of the insertion tube, which is halved barrel separate configurations other end extending forwardly from the front end opening end of the insertion tube The insertion device for an intraocular lens according to claim 1. Guiding portion and the insertion tube of the distal end portion at the open end for guiding the extending Mashimashi formed the intraocular lens from the proximal end of the previous SL insertion tube into the open end on the inner surface of the insertion tube in the direction of extrusion intraocular according to any one of claims 1 to 3, characterized in that at least one slit formed along the axial direction toward the more insertion tube proximal end is provided Insertion device for insertion lens.

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