Intraocular lens implantation system with lens

Abstract

The utility model discloses a lens eye artificial lens implantation system which comprises an outer cylinder, a push rod and a leading-in head, the leading-in head is installed at the front end of the outer cylinder, a leading-in channel is arranged in the leading-in head, and the push rod is installed in the outer cylinder from the rear end of the outer cylinder and is connected with the outer cylinder and the leading-in head in a piston mode to form an injector. The leading-in head comprises a leading-in front end and a leading-in cabin, the leading-in front end is conical, the leading-in cabin is formed by hinging two folding wings, a groove is formed in each folding wing, and the upper top surface of each groove is in a downwards-concave curved surface shape; the inner wall of a leading-in channel in the leading-in front end is in a curved surface shape, the width of the leading-in channel is gradually reduced from back to front, the distance between the upper top face and the lower bottom face of the leading-in channel is gradually increased from back to front, the upper top face of the leading-in channel is in a concave curved surface shape, and the curvature of the leading-in channel is gradually reduced from back to front. According to the utility model, the loop of the ICL crystal in an initial loading state is curled upwards through the folding wings, and the curved surface of the lead-in channel is gradually changed, so that the ICL crystal is curled upwards in an anticipated mode to be in a push-out state.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and particularly relates to a phakic intraocular lens implantation system. Background Art

[0002] The phakic intraocular lens, also known as the implantable contact lens (ICL), is implanted in the posterior chamber of the eye, between the iris and the lens. It is known as a product that can make up for refractive correction by LASIK, PRK and other cutting surgeries, and is one of the latest and safest products for correcting myopia. The currently adopted surgical method is to first make a small incision at the corneal edge of the surgical subject for implanting the ICL lens into the eye, then push the folded ICL lens into the posterior chamber of the eye through the incision, and finally unfold it and adjust it to the appropriate position.

[0003] Chinese invention patent CN112515815B (authorization announcement date: December 26, 2023) discloses an intraocular lens injector and an intraocular lens implantation method, including a barrel body, a front nozzle, a push rod, and also including a flip-open cavity cover, a box cavity, and a pressing block; during use, place the intraocular lens storage box pre-loaded with the intraocular lens on the extension part outside the barrel body of the intraocular lens injector, and fix the base part of the intraocular lens storage box to the side of the barrel body; push the main body part of the intraocular lens storage box into the box cavity of the intraocular lens injector and fasten the cavity cover; after the intraocular lens is released into the box cavity, press the pressing block of the intraocular lens injector to make it descend and contact the intraocular lens, and pre-press the intraocular lens into a state with a concave middle; push the push rod of the intraocular lens injector to make the intraocular lens be pushed out from the front nozzle of the intraocular lens injector while maintaining the state with a concave middle. In the above patent, the inner walls of the box cavity and the front nozzle are circular. During the pushing process, it is impossible to well ensure that the two sides and the loops of the ICL lens are folded and curled upwards in the expected manner, so it is not conducive to the subsequent smooth unfolding after entering the posterior chamber of the eye; and the box cavity and the front nozzle are circular outlets, which cannot effectively prevent the ICL lens from rotating during the folding and curling process, and may cause the ICL lens to flip after entering the posterior chamber of the eye. At this time, the doctor needs to adjust the front and back directions of the lens, which not only increases the operation difficulty of the doctor but also increases the wound of the surgical subject. Summary of the Utility Model

[0004] To solve the above deficiencies in the prior art, the utility model provides a phakic intraocular lens implantation system, which can make the ICL lens slowly curl upwards in the expected manner during the injection process.

[0005] To achieve the above technical purpose, the technical solution adopted by the utility model is:

[0006] A phakic intraocular lens implantation system includes an outer cylinder, a push rod, and an introducing head. The introducing head is installed at the front end of the outer cylinder. An introducing channel is provided inside the introducing head. The push rod is inserted into the outer cylinder from the rear end of the outer cylinder and is connected to the outer cylinder and the introducing head in a piston manner to form a syringe.

[0007] The introducing head includes an introducing front end and an introducing chamber. The introducing front end is conical. The introducing chamber is formed by two folding wings hinged together. A groove is provided inside the folding wings, and the upper top surface of the groove is a concave curved surface. The inner wall of the introducing channel in the introducing front end is a curved surface. The width of the introducing channel gradually decreases from the rear to the front. The distance between the upper top surface and the lower bottom surface of the introducing channel gradually increases from the rear to the front. The upper top surface of the introducing channel is a concave curved surface, and the curvature gradually decreases from the rear to the front until it adapts to the curvature of the phakic intraocular lens when it is released from the front end of the introducing head. The outlet of the introducing channel is flat-mouthed.

[0008] Further, a second groove is provided in the middle of the lower bottom surface of the introducing channel, and the curvature of the second groove gradually decreases from the rear to the front.

[0009] Further, a clamping block and a clamping groove are respectively provided on the opposite surfaces of the two folding wings, and the clamping block is adapted to the clamping groove.

[0010] Further, a clamping groove is provided on the top surface of the front end of the outer cylinder, and the clamping groove is communicated with the inside of the outer cylinder. The clamping groove includes a wide part at the rear end and a narrow part at the front end. The folding wing at the rear end of the introducing head is inserted into the clamping groove from the wide part and moves forward along the clamping groove until the upper part of the folding wing is clamped in the narrow part.

[0011] Further, a transition section is provided on the inner wall of the front end of the outer cylinder, and the transition section is narrow at the front and wide at the rear.

[0012] Preferably, the inclination angle of the transition section is 1° - 3°.

[0013] Further, a silica gel head is connected to the end of the push rod facing the introducing head. The silica gel head is a tapered frustum, and the large end is away from the push rod.

[0014] Further, a push handle is provided at the tail of the push rod. A spring and a double elastic piece are sleeved on the middle part of the push rod. The double elastic piece is located between the push handle and the spring. The double elastic piece has two symmetrically arranged elastic pieces, and the elastic pieces are in contact with the inner wall of the outer cylinder.

[0015] Further, two clamping holes are oppositely arranged at the rear end of the outer cylinder, and the clamping holes are adapted to the elastic pieces.

[0016] Further, a finger pressing part is provided on the rear end face of the push handle. The finger pressing part is a circular arc-shaped depression. A clamping wing is provided on the side surface of the outer cylinder, and an anti-slip pattern is attached to the clamping wing.

[0017] The beneficial effects of the present utility model are:

[0018] The utility model provides a phakic intraocular lens implantation system, which is closed by rotating the folding wings upward. The folding wings have a concave surface, which can provide downward pressure on the upper surface of the ICL lens, ensuring that the loop of the ICL lens is curled upward when it is initially loaded, so that the ICL lens can be better curled and folded upward during the subsequent pushing out process; the gradual change of the introduction channel surface of the introduction head can make the ICL lens gradually curl and fold upward in the direction opposite to the optical curvature of the ICL lens during the pushing out process. The curling direction of the ICL lens is opposite to the optical curvature direction of the lens, which is more conducive to the subsequent unfolding of the lens after implantation in the eye; the introduction channel outlet is designed as a flat mouth, which can effectively prevent the ICL lens from rotating during the curling process compared to the round mouth, so as to avoid the ICL lens from flipping over after implantation into the posterior chamber.

[0019] The utility model discloses a phakic intraocular lens implantation system, wherein the design of the second groove can always ensure that the lower surface of the ICL crystal can be supported by the silicone head without being pressed.

[0020] The utility model of the phakic intraocular lens implantation system has a tapered truncated cone-shaped silicone head. When the larger curved surface space at the rear end of the introduction head gradually transitions to the smaller curved surface space at the front end, the tapered truncated cone-shaped silicone head has better deformation and adaptability than the ordinary cylindrical silicone head. The second groove on the lower surface of the introduction channel can effectively prevent the silicone head from pressing the loop of the ICL crystal into the gap between the silicone head and the introduction channel during the push-out process.

[0021] The utility model provides a phakic intraocular lens implantation system. The design of the spring and double spring pieces on the push rod increases the pushing resistance and further improves the pushing stability. During the pushing process, it can avoid the ICL lens being damaged due to the pushing process being too fast, and the initial pushing position can be returned to by the reaction force of the spring after the pushing is completed. At the same time, the double spring pieces cooperate with the clamping holes on the outer cylinder to prevent the push rod from moving backwards from the outer cylinder shell and provide a rear limit.

[0022] In the phakic intraocular lens implantation system of the utility model, a lubricating coating is added to the inner wall of the introduction channel of the introduction head, which can effectively reduce the friction between the ICL crystal and the inner wall of the introduction channel, reduce the damage to the optical surface of the ICL crystal and ensure smooth introduction.

[0023] The phakic intraocular lens implantation system of the utility model greatly simplifies the related implantation surgery operations, avoids the rotation of the ICL lens during the ejection process, allows the ICL lens to curl upward to a push-out state during the ejection process, and is more conducive to the smooth ejection of the ICL lens, greatly reducing the difficulty of operation, and reducing the operation time and postoperative inflammatory response. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] To more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the attached drawings required in the embodiments. It should be understood that the following attached drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation of the scope. For those of ordinary skill in the art, without creative efforts, other related attached drawings can also be obtained based on these attached drawings.

[0025] Figure 1 It is a front view schematic diagram of the overall structure of the embodiment of the present utility model;

[0026] Figure 2 is Figure 1 the top view of;

[0027] Figure 3 It is an exploded structure schematic diagram of the embodiment of the present utility model;

[0028] Figure 4 is Figure 1 the sectional view of;

[0029] Figure 5 is Figure 4 the enlarged schematic diagram at the wireframe;

[0030] Figure 6 It is a three-dimensional schematic diagram of the introduction head;

[0031] Figure 7 It is a sectional view of the introduction chamber;

[0032] Figure 8 It is a longitudinal sectional view of different positions of the introduction head;

[0033] Figure 9 It is a schematic diagram of the ICL crystal structure;

[0034] Figure 10 It is a transverse sectional view of the ICL crystal placed in the introduction head;

[0035] Figure 11 It is a longitudinal sectional view of the ICL crystal at different positions in the introduction head;

[0036] Figure 12 It is a three-dimensional schematic diagram of the outer cylinder;

[0037] Figure 13 It is a sectional view of the outer cylinder;

[0038] Figure 14 It is a structural schematic diagram of the push rod.

[0039] Reference numerals: 1 - outer cylinder, 2 - push rod, 3 - introduction head, 4 - spring, 5 - silica gel head, 6 - double elastic sheet, 11 - card slot, 12 - transition section, 13 - card hole, 14 - clamping wing, 21 - push handle, 31 - introduction front end, 32 - folding wing, 33 - groove, 34 - clamping block, 35 - anti-slip groove, 36 - chamfer, 37 - second groove. Detailed implementation mode

[0040] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Usually, the components of the embodiments of the present application described and illustrated herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application to be protected, but merely represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present application.

[0041] An implantable phakic intraocular lens system, as Figure 1 - Figure 2 shown, includes an outer cylinder 1, a push rod 2, and an introduction head 3. The introduction head 3 is installed at the front end of the outer cylinder 1. An introduction channel is provided inside the introduction head 3. The push rod 2 is inserted into the outer cylinder 1 from the rear end of the outer cylinder 1 and is connected to the outer cylinder 1 and the introduction head 3 in a piston manner to form a syringe.

[0042] The introduction head 3 is as Figure 3 - Figure 11 shown, includes an introduction front end 31 and an introduction chamber. The introduction front end 31 is conical. The introduction chamber is formed by hinging two folding wings 32. Grooves 33 are provided inside the folding wings 32. The upper top surface of the groove 33 is a downwardly concave curved surface. The inner wall of the introduction channel in the introduction front end 31 is a curved surface. The width of the introduction channel gradually decreases from the rear to the front. The distance between the upper top surface and the lower bottom surface of the introduction channel gradually increases from the rear to the front. The upper top surface of the introduction channel is a downwardly concave curved surface, and the curvature gradually decreases until it adapts to the curvature of the phakic intraocular lens when it is released from the front end of the introduction head. The outlet of the introduction channel is flat-mouthed.

[0043] Furthermore, as Figure 7As shown, clamping blocks 34 and clamping grooves are respectively arranged on the opposite surfaces of the two folding wings 32. When closed, the clamping blocks 34 are clamped in the clamping grooves. When the two folding wings are pulled open to the left and right, the clamping blocks 34 are disengaged from the clamping grooves, and the folding wings are opened. The ICL crystal is placed face-up in the groove 33. Then, the folding wings are closed together from left to right, and the clamping blocks are snapped into the clamping grooves to fasten. The folding wings are closed. The upper top surface of the groove of the folding wing has a concave curved surface. Therefore, after the folding wings are closed, a downward pressure will be generated on the ICL crystal, causing the ICL crystal to curl upward and deform. Preferably, anti-slip grooves 35 are provided on the outer side walls of the folding wings, and chamfers 36 are provided at the end parts of the open ends of the folding wings, which is convenient for pulling open or closing the folding wings.

[0044] The inner wall curved surface of the guiding channel shape in the guiding front end gradually changes from the back to the front. Specifically, as Figure 8 shown, taking four cross-sections as an example, the C-C cross-section adjacent to the guiding front end and the D-D cross-section of the guiding cabin have the same shape. From the C-C cross-section to the B-B cross-section, then to the A-A cross-section, and then to the inner wall curved surface space of the guiding channel outlet, it gradually decreases. From the C-C cross-section to the B-B cross-section and then to the A-A cross-section, the width of the guiding channel gradually decreases, and the height from the lower bottom surface (the surface for placing the two sides and the loops of the ICL crystal) to the upper top surface of the guiding channel gradually increases. This height is the position reserved for the deformation of the two sides of the ICL crystal. Therefore, the silicone head will push the middle position of the ICL crystal, driving the overall forward movement of the ICL crystal. The two sides of the ICL crystal will gradually generate upward curling deformation at the left and right inner wall positions of the guiding channel. The guiding channel reserves the deformation space for the sides of the ICL crystal to gradually adapt to different forms during the injection process of the ICL crystal, ensuring the smoother ejection of the ICL crystal. Preferably, a second groove 37 is provided in the middle of the lower bottom surface of the guiding channel, and the curvature of the second groove 37 gradually decreases. The lower surface of the second groove 37 can effectively prevent the loops of the ICL crystal from being pressed into the gap between the silicone head and the guiding channel during the ejection process. Preferably, the guiding head is made of transparent PP material, which is convenient for observation during the ejection process.

[0045] Schematic diagrams of the states of the ICL crystal at different positions in the guiding head are as Figure 11 shown. Initially, the ICL crystal is placed in the groove of the folding wing. The height from the center of the lower bottom surface to the center of the upper top surface of the groove is slightly less than the height of the ICL crystal, and the width of the groove is less than the width of the ICL crystal; that is, in the C-C cross-section and the D-D cross-section, the height from the plane for placing the two sides and the loops of the ICL crystal to the lower surface of the folding wing is less than the height of the ICL crystal. Therefore, after the folding wings are closed, the concave curved surface part of the folding wings generates a downward pressure on the ICL crystal. At the same time, the widths of the C-C cross-section and the D-D cross-section are less than the width of the ICL crystal. When placing the ICL crystal, use tweezers to press the ICL crystal downward so that the loops of the ICL crystal curl upward, and the curling form is as Figure 11Schematic diagram of the C-C cross-section; when the front end of the ICL crystal is pushed into the B-B cross-section, since the width of the introduction channel is further reduced, the front end of the ICL crystal curls further upward at this time, which also gives the entire ICL crystal a tendency to curl upward; then the push rod is pressed. When the ICL crystal reaches the A-A cross-section, the width of the introduction channel continues to decrease and the ICL crystal continues to curl upward until it reaches the outlet of the introduction channel and curls to the ideal state.

[0046] A clamping groove 11 is provided on the top surface of the front end of the outer cylinder 1, as Figure 12 , 13 shown. The clamping groove 11 includes a wide part at the rear end and a narrow part at the front end. The folding wings at the rear end of the introduction head are inserted into the clamping groove 11 from the wide part and move forward along the clamping groove 11 until they are clamped in the narrow part, which can prevent the introduction head from moving forward and swaying left and right.

[0047] Preferably, a transition section 12 is provided on the inner wall of the front end of the outer cylinder. The transition section 12 is narrow at the front and wide at the rear, and the inclination angle of the transition section 12 is 1°-3°. Therefore, the front end of the transition section 12 is slightly narrower than the periphery of the introduction head, and the rear end of the transition section 12 is slightly wider than the periphery of the introduction head. Some areas are in interference fit with the introduction head to avoid the introduction head from swaying and moving. A clamping wing 14 is provided on the side of the outer cylinder 1, and anti-slip lines are attached to the clamping wing 14. Fingers are clamped on the clamping wing 14, which is convenient for pushing the push rod. At the same time, the anti-slip lines can prevent the outer cylinder from slipping during pushing.

[0048] A silica gel head 5 is provided on the head of the end of the push rod 2 facing the introduction head. As Figure 14 shown, the silica gel head 5 is in the shape of a tapered frustum, the large end is the head end, and there is a rounded transition between the end face and the side face. A hollow groove is provided at the small end for the push rod to be fitted on the front end of the push rod; the head end of the silica gel head 5 contacts the ICL crystal, and the side face closely adheres to the upper and lower parts of the inner curved surface of the introduction head for pushing out the ICL crystal. The rounded transition at the head end can better adapt to different curved surface sizes. The material of the silica gel head is moderately hard and soft, and it is not easy to damage the ICL crystal; it is not easy to deform under slight force and will produce a small amount of deformation under a certain force. Therefore, during the pushing process, different deformation amounts can be generated under different force conditions to cooperate with the curved surface space design of the introduction channel in the introduction head, which can ensure that the silica gel head can perfectly fit the upper and lower surfaces of the introduction channel whether it is in the larger part of the space at the rear end of the introduction channel or the smaller part of the space at the front end of the introduction channel, avoiding the ICL crystal from being pressed against the upper and lower inner walls of the introduction channel; in addition, the diameter of the left and right inner walls of the introduction channel is relatively larger than the diameter of the upper and lower inner walls, and there is a certain space between the left and right inner walls of the introduction channel and the silica gel head. This space is reserved for the upward curling deformation of both sides of the ICL crystal. Therefore, both sides of the ICL crystal will produce upward curling deformation at the position of the left and right inner walls of the introduction channel. At this time, the silica gel head will drive the whole ICL crystal to move forward by pushing the middle position of the ICL crystal.

[0049] A push handle 21 is provided at the tail of the push rod 2, and a spring 4 is sleeved on the middle part of the push rod 2; further, a double elastic sheet 6 is also provided on the push rod 2, the double elastic sheet 6 is located between the push handle 21 and the spring 4, the double elastic sheet 6 is sleeved on the push rod 2, the double elastic sheet 6 has two symmetrically arranged elastic sheets, the elastic sheets are in contact with the inner wall of the outer cylinder 1, the double elastic sheet 6 has a certain elasticity and can closely adhere to the inner wall of the outer cylinder to provide appropriate propulsion damping; the double elastic sheet enables the push rod to be symmetrically stressed in both directions during the pushing process, with uniform stress, and can ensure stable pushing. Two card holes 13 are oppositely arranged at the rear end of the outer cylinder 1. When the double elastic sheet 6 on the push rod 2 moves to the position of the card hole 13, the elastic sheet pops into the card hole 13 for limiting to prevent the push rod 2 from slipping backward. Preferably, a card rib is provided on one side of the double elastic sheet 6 facing the spring 4, and one end of the spring 4 is clamped on the card rib. The end face of the push handle 21 is provided with a finger pressing part, and the part of the finger pressing part in contact with the finger is designed with an arc-shaped depression, which can better contact the finger and provide a more comfortable pushing feel.

[0050] The specific operation steps of the present utility model are as follows:

[0051] 1. Open the double folding wings on the introduction head left and right, inject an appropriate amount of viscoelastic agent into the inner wall of the introduction head, place the ICL crystal between the B-B to D-D cross-sections of the introduction head, with the long axis direction of the ICL crystal consistent with the long axis direction of the introduction head, and use tweezers to press the ICL crystal downward so that the optical surface and the loop of the ICL crystal curl upward, and then close the folding wings;

[0052] 2. Place the introduction head into the card slot of the outer cylinder, and push the folding wings to make them snap into the narrow part at the front end of the card slot and clamp tightly;

[0053] 3. Make a small incision in the cornea of the surgical object to push the ICL crystal in;

[0054] 4. Clamp the clamping wing part of the outer cylinder with the index finger and middle finger, and press the finger pressing part of the push rod with the thumb;

[0055] 5. Insert the front end of the introduction of the introduction head into the small incision of the cornea, slowly press the finger pressing part until the ICL crystal is pushed out and released behind the human eye, and then adjust the loop of the ICL crystal appropriately according to the position of the ICL crystal to make the loop located in the ciliary sulcus to complete the operation.

[0056] Certainly, the present utility model can also have many other embodiments. Without departing from the spirit and essence of the present utility model, those skilled in the art can make various corresponding changes and deformations according to the present utility model, but these corresponding changes and deformations should all fall within the protection scope of the appended claims of the present utility model.

Claims

1. A phakic intraocular lens implantation system, characterized in that: It includes an outer cylinder (1), a push rod (2), and an introduction head (3). The introduction head (3) is installed at the front end of the outer cylinder (1). An introduction channel is provided inside the introduction head (3). The push rod (2) is inserted into the outer cylinder (1) from the rear end of the outer cylinder (1) and is connected to the outer cylinder (1) and the introduction head (3) in a piston manner to form a syringe. The introduction head (3) includes an introduction front end (31) and an introduction chamber. The introduction front end (31) is conical. The introduction chamber is formed by hinging two folding wings (32). A groove (33) is provided inside the folding wing (32). The upper top surface of the groove (33) is a concave curved surface. The inner wall of the introduction channel in the introduction front end (31) is a curved surface. The width of the introduction channel gradually decreases from the rear to the front. The distance between the upper top surface and the lower bottom surface of the introduction channel gradually increases from the rear to the front. The upper top surface of the introduction channel is a concave curved surface, and the curvature gradually decreases from the rear to the front until it adapts to the curvature of the artificial lens when it is released from the front end of the introduction head. The outlet of the introduction channel is flat-mouthed.

2. The phakic intraocular lens implantation system according to claim 1, characterized in that: A second groove (37) is provided in the middle of the lower bottom surface of the introduction channel. The curvature of the second groove (37) gradually decreases from the rear to the front.

3. The phakic intraocular lens implantation system according to claim 1, wherein: Clamping blocks (34) and clamping grooves are respectively provided on the opposite surfaces of the two folding wings (32). The clamping blocks (34) are adapted to the clamping grooves.

4. The phakic intraocular lens implantation system according to claim 1, characterized in that: A clamping groove (11) is provided on the top surface of the front end of the outer cylinder (1). The clamping groove (11) communicates with the inside of the outer cylinder (1). The clamping groove (11) includes a wide part at the rear end and a narrow part at the front end. The folding wings at the rear end of the introduction head are inserted into the clamping groove (11) from the wide part and move forward along the clamping groove (11) until the upper part of the folding wings is clamped in the narrow part.

5. The phakic intraocular lens implantation system according to claim 4, characterized in that: A transition section (12) is provided on the inner wall of the front end of the outer cylinder. The transition section (12) is narrow at the front and wide at the rear.

6. The phakic intraocular lens implantation system according to claim 5, characterized in that: The inclination angle of the transition section (12) is 1° - 3°.

7. The phakic intraocular lens implantation system according to claim 1, wherein: One end of the push rod (2) facing the introduction head (3) is connected with a silica gel head (5). The silica gel head (5) is in the shape of a tapered frustum. The end of the silica gel head (5) away from the push rod (2) is the large end.

8. The phakic intraocular lens implantation system according to claim 1, wherein: A push handle (21) is provided at the tail of the push rod (2). A spring (4) and a double elastic sheet (6) are sleeved in the middle of the push rod (2). The double elastic sheet (6) is located between the push handle (21) and the spring (4). The double elastic sheet (6) has two symmetrically arranged elastic sheets, and the elastic sheets are in contact with the inner wall of the outer cylinder (1).

9. The phakic intraocular lens implantation system according to claim 8, wherein: Two clamping holes (13) are oppositely arranged at the rear end of the outer cylinder (1). The clamping holes (13) are adapted to the elastic sheets.

10. The phakic intraocular lens implantation system according to claim 8, wherein: A finger pressing part is provided on the rear end face of the push handle (21). The finger pressing part is in the shape of an arc-shaped depression. A clamping wing (14) is provided on the side surface of the outer cylinder (1). Anti-slip patterns are attached to the clamping wing (14).

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