Intraocular lens injection method and intraocular lens injection device

Abstract

In order to provide an intraocular lens pushing method and intraocular lens pushing device that can fully curl an intraocular lens, specifically, fully curl the optical part of the intraocular lens, and the supporting part is easy to unfold and position, so that the intraocular lens can be implanted into the eyeball from a smaller incision, thereby reducing the astigmatism and infection problems that may occur after the operation. The present invention provides an intraocular lens pushing method and intraocular lens pushing device, the intraocular lens includes an optical part, a first supporting part and a second supporting part that extend outward and are symmetrically arranged in the circumference of the optical part, respectively, the intraocular lens pushing method includes: an optical part pre-pressing step, applying pressure to the optical part to make its center concave and deformed; a supporting part pushing step, pushing the first supporting part toward the optical part, so that a part of the first supporting part abuts against the optical part; an optical part curling step, in a pushing direction perpendicular to the supporting part pushing step, curling the two side parts of the optical part oppositely.

Description

Technical Field

[0001] The present invention relates to the technical field of artificial lenses, and in particular to an artificial lens pushing method and an artificial lens pushing device. Background Art

[0002] An intraocular lens (IOL) is an artificial lens that is implanted in the eye to replace the natural lens when the eye has cataracts or other diseases to correct the refractive error of the eye.

[0003] The intraocular lens is implanted into the eyeball through minimally invasive surgery. Specifically, a small incision is made on the eyeball so that the intraocular lens can enter the eyeball through the incision. The sheet-like intraocular lens needs to be implanted into the eyeball through the incision with the help of medical equipment.

[0004] Figure 1 The figure shows an intraocular lens push injection method provided by the prior art. The first support part 1002 and the second support part 1003 are all curled to a position overlapping with the optical part 1001. The push rod 1004 pushes the optical part 1001, and the two side parts of the optical part 1001 are curled toward each other. The intraocular lens will appear in the push injection device as follows Figure 1 The shape shown makes the length of the artificial lens in the pushing direction shorter and can be successfully implanted into the eyeball.

[0005] When the intraocular lens injection method provided by the above-mentioned prior art is used for injection, it is found that the intraocular lens is difficult to be fully curled in the expected form, and it is easy to have undesirable conditions such as local bending of the intraocular lens and incorrect curling direction.

[0006] Furthermore, in the intraocular lens push injection method, the first support part 1002 and the second support part 1003 need to be fully curled to a position overlapping with the optical part 1001. In this case, when the push injection is performed, the restoring force generated by the curled and folded first support part 1002 and the second support part 1003 due to the curling deformation will act on the optical part, so that the two side parts of the optical part 1001 where the first support part 1002 and the second support part 1003 are not provided are difficult to be further fully curled. At this time, the incision on the eyeball for implanting the intraocular lens also needs to be correspondingly enlarged. A large incision is more likely to cause astigmatism problems that may occur after surgery, and is also not conducive to early recovery and infection prevention after surgery.

[0007] In addition, the push injection method in which both the first support portion 1002 and the second support portion 1003 are completely curled into the optical portion 1001 may also cause the first support portion 1002 or the second support portion 1003 to adhere to the optical portion 1001, which is not conducive to the unfolding and positioning of the first support portion 1002 or the second support portion 1003 in the eyeball after the artificial lens is implanted into the eyeball.

[0008] Therefore, an object of the present invention is to provide an intraocular lens push injection method that can fully curl an intraocular lens, specifically, fully curl the optical part of the intraocular lens, and facilitate the unfolding and positioning of the supporting part. Summary of the invention

[0009] In order to provide an intraocular lens pushing method that can fully curl an intraocular lens, specifically, fully curl the optical part of the intraocular lens, and the supporting part is easy to unfold and position.

[0010] In the method for pushing an artificial lens involved in the first technical solution of the present invention, the artificial lens includes an optical part, a first supporting part and a second supporting part extending outward in the circumferential direction of the optical part and symmetrically arranged, and the method for pushing an artificial lens includes: an optical part pre-pressing step, applying pressure to the optical part to cause its center to become concave and deformed; a supporting part pushing step, pushing the first supporting part toward the optical part so that a part of the first supporting part abuts against the optical part; and an optical part curling step, curling the two side parts of the optical part in a pushing direction perpendicular to the supporting part pushing step.

[0011] According to the first technical solution of the present invention, the reasons why the optical part can be fully curled in the expected form and the supporting part is easy to unfold and position are mainly the following two points: First, in the optical part pre-pressing step, the optical part is pressed to make its center concave and deformed. At this time, the two side parts of the optical part without the first supporting part and the second supporting part have a strong tendency to curl in opposite directions, so that in the subsequent optical part curling step, the two optical part sides, that is, in the pushing direction perpendicular to the supporting part pushing step, the two side parts of the optical part can curl in opposite directions to form the expected shape, and it is not easy to have undesirable shapes such as local bending of the artificial lens and incorrect curling direction. Second, in the supporting part pushing step, because the first supporting part is pushed toward the optical part, the first supporting part is deformed and partially abuts against the optical part, so the first supporting part only partially abuts against the optical part, and does not overlap with the optical part. Therefore, there is no problem that the first supporting part is sticky and adheres to the surface of the optical part during the push injection process and is not easy to unfold, and because there is no excessive deformation, the restoring force of the first supporting part when unfolding is small, which is conducive to the correct unfolding and positioning of the first supporting part.

[0012] When the two side portions of the optical part in the pushing direction perpendicular to the supporting part pushing step can be fully curled toward the center of the optical part in the expected form, the intraocular lens can be implanted through a smaller incision on the eyeball. A smaller incision is beneficial for overcoming possible astigmatism problems, and is beneficial for early recovery of the incision and prevention of infection.

[0013] The optical part is fully curled, which can be reflected in that: in the pushing direction perpendicular to the supporting part pushing step, the width of the intraocular lens after the two side parts of the optical part are curled opposite to each other is as small as possible in the pushing direction perpendicular to the pushing direction; or the end surface area of ​​the tube surrounded by the two side parts of the optical part curled opposite to each other and the middle inner part of the optical part is as small as possible.

[0014] In addition, during the supporting portion pushing process of the supporting portion pushing step, the first supporting portion is deformed and retracted toward the optical portion due to the pushing force, so that the length of the artificial lens in the pushing direction is shorter, which is conducive to smooth implantation into the eyeball.

[0015] A second technical solution of the present invention relates to an intraocular lens injection method, wherein in the support portion pushing step in the first technical solution, the end portion of the first support portion does not contact the optical portion.

[0016] According to the second technical solution of the present invention, since in the support part pushing step, the contact position between the pushing member for pushing the artificial lens and the artificial lens is at the end of the first support part and the part between the connection point between the first support part and the optical part, the part of the first support part that is pushed and deformed will contact the optical part, but the end of the first support part serving as the movable end will not touch the optical part, thereby reducing the possibility of adhesion between the end of the first support part and the optical part, which is beneficial to the full expansion of the artificial lens in the eyeball.

[0017] In the intraocular lens injection method according to a third technical solution of the present invention, in the support portion pushing step, the pushing direction of the first support portion is consistent with the moving direction of the first support portion and the optical portion.

[0018] According to the third technical solution of the present invention, because the pushing direction of the first supporting part is consistent with the moving direction of the first supporting part and the optical part when the supporting part pushing step is performed on the artificial lens, the moving direction of the first supporting part and the center of the optical part can be kept in a straight line with the pushing direction, ensuring that when the first supporting part is pushed, even if the first supporting part is deformed due to being pushed, the first supporting part as a whole and the center of the optical part are kept on the axis of the pushing direction, so that the movement of the artificial lens during the pushing process is stable and will not be offset or deformed.

[0019] The fourth technical solution of the present invention relates to an intraocular lens injection method, which is based on the first technical solution, the second technical solution or the third technical solution, and the first supporting part in the supporting part pushing step is S-shaped.

[0020] According to the fourth technical solution of the present invention, since the first support portion is S-shaped, that is, the pushed and deformed first support portion is gathered in an S-shape at the edge of the optical portion and only partially abuts against the optical portion, the length of the first support portion in the pushing direction of the intraocular lens is relatively short, which is conducive to the smooth implantation of the intraocular lens into the eyeball. In addition, the contact point between the S-shaped first support portion and the optical portion is small, which is conducive to the optical portion being fully curled, while reducing the possibility of the first support portion overlapping with the optical portion and causing adhesion.

[0021] The fifth technical solution of the present invention relates to an intraocular lens injection method, which is based on the fourth technical solution and further includes a second support portion curling step, at least curling a portion of the second support portion to the optical portion.

[0022] According to the fifth technical solution of the present invention, since it includes a step of curling the second supporting part, and a part of the second supporting part located at the front end in the pushing direction is curled and touches the optical part, the length of the artificial lens in the pushing direction is reduced, which is conducive to the smooth implantation of the artificial lens into the eyeball.

[0023] A sixth technical solution of the present invention relates to an intraocular lens injection method, which is based on the fifth technical solution, wherein in the second support portion curling step, the entire second support portion is curled up to the optical portion.

[0024] According to the sixth technical solution of the present invention, since the entire second supporting portion located at the front end in the pushing direction is curled to the optical portion, the length of the artificial lens in the pushing direction is further reduced, which is conducive to the smooth implantation of the artificial lens into the eyeball.

[0025] The seventh technical scheme of the present invention relates to an artificial lens pushing device for pushing an artificial lens including an optical part, a first supporting part and a second supporting part respectively extending outward in the circumferential direction of the optical part and symmetrically arranged. The artificial lens pushing device includes: an optical part pre-pressing member, which applies pressure to the optical part to cause its center to become concave and deform; a supporting part pushing member, which pushes the first supporting part toward the optical part so that a part of the first supporting part abuts against the optical part; and an optical part curling member, which curls the two side parts of the optical part in a pushing direction perpendicular to that of the supporting part pushing member.

[0026] The intraocular lens injection device provided by the present invention can implement the intraocular lens injection methods of the first to sixth technical solutions of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the morphology of an artificial lens formed by the artificial lens push injection method in the background art;

[0028] Figure 2 is a schematic diagram of the structure of an artificial lens provided in an embodiment of the present invention;

[0029] Figure 3 is a flow chart of an intraocular lens push injection method provided in an embodiment of the present invention;

[0030] Figure 4 is a schematic structural diagram of an intraocular lens injection device provided in an embodiment of the present invention;

[0031] Figure 5 is a schematic structural diagram of an intraocular lens injection device provided in an embodiment of the present invention;

[0032] Figure 6 is a schematic diagram of the morphology of an intraocular lens using the intraocular lens push injection method provided in an embodiment of the present invention;

[0033] Figure 7 yes Figure 6 A partial enlarged view of the front end of the push rod, which is a section perpendicular to the axial direction of the push rod, of the portion indicated by A in the middle;

[0034] Figure 8 yes Figure 6 The part shown in A is a partial enlarged cross-sectional view of the intraocular lens when it is partially embedded in the front end of the push rod.

[0035] Reference numerals: optical part 1001, first supporting part 1002, second supporting part 1003, push rod 1004,

[0036] Intraocular lens 1, optical part 10, first supporting part 11, connecting part 111, first bending part 112, second bending part 113, end part 114, second supporting part 12, intraocular lens pushing device 2, pressing block 21, push rod 22, notch part 221 at the front end of the push rod, front mouth 23, barrel 24, and pushing outlet 25. DETAILED DESCRIPTION

[0037] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios. It should also be noted that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0038] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0039] First embodiment

[0040] This embodiment provides a method for injecting an artificial lens, referring to Figure 2The intraocular lens 1 comprises an optical portion 10, a first supporting portion 11 and a second supporting portion 12 extending outwardly and symmetrically arranged in the circumference of the optical portion 10. Figure 3 The method for pushing the intraocular lens includes: an optical part pre-pressing step: applying pressure to the optical part 10 to make its center concave and deformed; a supporting part pushing step: pushing the first supporting part 11 toward the optical part 10 so that a part of the first supporting part 11 abuts against the optical part 10; an optical part curling step: curling the two side parts of the optical part 10 in a pushing direction perpendicular to the supporting part pushing step.

[0041] According to the technical solution provided in this embodiment, the optical portion 10 can be fully curled in the expected form, and the supporting portion is easy to unfold and position because of the following two reasons:

[0042] First, in the optical part pre-pressing step, pressure is applied to the optical part 10 to cause its center to be concave and deform (downward pressure is applied to the middle part of the optical part 10). At this time, the two side parts of the optical part 10 where the first supporting part 11 and the second supporting part 12 are not provided have been bent to a certain extent in advance, so that in the subsequent optical part curling step, the two side parts of the optical part 10 can curl in opposite directions to form the expected shape, and it is not easy to have undesirable shapes such as local bending of the artificial lens 1 and incorrect curling direction.

[0043] Secondly, in the support portion pushing step, the first support portion 11 is pushed toward the optical portion 10 instead of overlapping the optical portion 10. Therefore, there is no problem that the first support portion 11 is difficult to unfold due to sticking to the surface of the optical portion 10 during the push injection process, and because there is no excessive deformation, the restoring force of the first support portion 11 when unfolding is small, which is conducive to the correct unfolding and positioning of the first support portion 11.

[0044] When the two side portions of the optical portion 10 in the pushing direction perpendicular to the supporting portion pushing step can be fully curled toward the center of the optical portion 10 in the expected form, the intraocular lens 1 can be implanted through a smaller incision on the eyeball. A smaller incision is conducive to overcoming possible astigmatism problems, and is conducive to early recovery of the incision and prevention of infection.

[0045] Figure 6 The curled shape of the intraocular lens formed by the push injection method of this embodiment is shown in FIG. Figure 6 , Figure 6The upper and lower sides of the optical part 10 are fully curled, which can be reflected in that: in the pushing direction perpendicular to the supporting part pushing step, the width H of the intraocular lens 1 after the two sides of the optical part 10 are curled is as small as possible in the pushing direction perpendicular to the supporting part pushing step; or the end surface area of ​​the tube surrounded by the two sides of the optical part 10 curled opposite to each other and the middle inner part of the optical part 10 is as small as possible, in other words, the contour area of ​​the cross section of the curled optical part 10 is minimized. It can be understood that although Figure 6 The intraocular lens 1 shown in the figure looks like a plane, but the two sides of the actual optical part 10 that are curled towards each other and the middle of the optical part 10 are not in the same plane, and there is a gap in the middle, similar to a hollow, roughly flat cylinder.

[0046] Although in the intraocular lens pushing method provided in the present embodiment, the optical part pre-pressing step, the supporting part pushing step and the optical part curling step are performed in sequence, they do not have to be performed in this order. For example, in other embodiments, the optical part pre-pressing step and the optical part curling step can be performed first, so that the optical part 10 is fully curled, and then the supporting part pushing step is performed. By pushing the first supporting part 11 toward the optical part 10 so that a part of the first supporting part 11 abuts against the optical part 10, the influence of the first supporting part 11 on the fully curled optical part 10 can be reduced. Alternatively, the optical part pre-pressing step and the supporting part pushing step can be performed first, and then the optical part curling step is performed. As long as the intraocular lens pushing method can deform the first supporting part 11 and a part of it abuts against the optical part 10, but does not overlap with the optical part 11, it belongs to the scope of the embodiments of the present invention.

[0047] Further, as a preferred embodiment, in the support portion pushing step, the end portion 114 of the first support portion 11 does not touch the optical portion 10. Figure 6 , the part of the first supporting part 11 that contacts the optical part 10 is usually the middle part of the first supporting part 11, rather than the end 114 of the first supporting part 11. By making the first supporting part 11 contact the optical part 10 only with the middle part, rather than a large range of surface contact, the rebound force caused by the elastic deformation of the first supporting part 11 is not easily transmitted to the upper and lower sides of the folded optical part 10, so that it is not easy to affect the full curling of the optical part 10, and at the same time, it is also less likely that the end 114 of the first supporting part 11 will be bonded to the optical part 10, which is conducive to the full expansion of the artificial lens 1 in the eyeball and the first supporting part 11 to play the expected positioning role.

[0048] Further, as a preferred embodiment, in the support portion pushing step, the pushing direction of the first support portion 11 is consistent with the moving direction of the first support portion 11 and the optical portion 10. In this way, the moving direction of the first support portion 11 and the center of the optical portion 10 can be kept in a straight line with the pushing direction, ensuring that when the first support portion 11 is pushed, even if the first support portion 11 is deformed due to being pushed, the entire first support portion 11 and the center of the optical portion 10 are kept on the axis of the pushing direction, so that the movement of the intraocular lens 1 during the injection process is stable and will not be offset or deformed.

[0049] Further, as a preferred embodiment, the first support portion 11 in the support portion pushing step is S-shaped. Figure 6 As shown in the first supporting portion 11 in FIG. 1 , the pushed first supporting portion 11 is deformed from an expanded shape to a shape gathered at the edge of the optical portion 10 and presenting an S shape.

[0050] Specifically, refer to Figure 6 , from the connecting portion 111 between the first supporting portion 11 and the optical portion 10 to the end portion 114 of the first supporting portion 11, the first bending portion 112 and the second bending portion 113 are sequentially included. In the supporting portion pushing step, the first bending portion 112 of the first supporting portion 11 is pushed toward the optical portion 10 by the push rod 22, so that the second bending portion 113 of the first supporting portion 11 abuts against the optical portion 10. In the process of pushing the push rod 22, the end portion 114 of the first supporting portion 11 does not contact the optical portion 10. In the subsequent push injection process, the force applied by the push rod 22 to the first bending portion 112 will be transmitted to the optical portion 10 via the connecting portion 111 and the second bending portion 113 (using the abutment between the second bending portion 113 and the optical portion 10). At the same time, because the first supporting portion 11 is S-shaped, that is, the connecting portion 111, the second bending portion 113 and the first bending portion 112 form a triangular structure, the bending state of the first supporting portion 11 can make the first supporting portion 11 as a whole remain stable during the push injection process, thereby making the optical portion 10 also remain stable during the push injection process.

[0051] Further, as a preferred embodiment, the intraocular lens injection method provided in the embodiment of the present invention may further include a second support portion curling step, in which all or part of the second support portion 12 is curled to the optical portion 10. Figure 6 By curling the entire second supporting portion 12 until it overlaps with the optical portion 10, the length L of the artificial lens 1 in the pushing direction is reduced, which is beneficial for smoothly implanting the artificial lens 1 into the eyeball.

[0052] like Figure 6As shown, in this preferred embodiment, the first support portion 11 is only folded close to the edge of the optical portion 10, and only a part of the first support portion 11 abuts against the optical portion 10, while the second support portion 12 is completely curled to overlap with the optical portion 10. During the intraocular lens push injection process, the purpose of keeping the intraocular lens 1 in the above-mentioned form is to take into account both fully curling the optical portion 10 to reduce the size of the incision required on the eyeball and reducing the length of the intraocular lens 1 in the pushing direction so that the intraocular lens 1 can be smoothly implanted into the eyeball.

[0053] In other embodiments, only the part of the second supporting portion 12 away from the optical portion 10 may be rolled to overlap the optical portion 10. The proportion of the second supporting portion 12 rolled to the optical portion 10 may be adjusted by those skilled in the art according to actual needs.

[0054] Second embodiment

[0055] As a second embodiment of the present invention, an intraocular lens push injection device 2 is also provided, which can perform push injection on an intraocular lens 1 including an optical portion 10, and a first support portion 11 and a second support portion 12 extending outwardly and symmetrically arranged in the circumference of the optical portion 10, with reference to Figure 4 and Figure 5 The intraocular lens pushing device 2 includes: an optical part pre-pressing member, which applies pressure to the optical part 10 to make it partially concave; a supporting part pushing member, which pushes the first supporting part 11 toward the optical part 10 so that a part of the first supporting part 11 abuts against the optical part 10; and an optical part curling member, which curls the two side parts of the optical part 10 in a pushing direction perpendicular to that of the supporting part pushing member.

[0056] Figure 4 and Figure 5 The structural schematic diagram of the intraocular lens pushing device 2 involved in the present embodiment is shown. The intraocular lens pushing device 2 is provided with a barrel 24, which is roughly in the shape of a hollow cylinder and is open at both ends. The intraocular lens pushing device 2 is also provided with an optical part pre-pressing piece, which is specifically a pressing block 21. The pressing block 21 is arranged on the upper side of the intraocular lens pushing device 2, and is connected to the outer surface of the barrel 24 in a flippable manner, and is used to pre-press the optical part 10 of the intraocular lens 1 loaded into the intraocular lens pushing device 2 so that its center is partially concave, that is, the pressing block 21 performs the optical part pre-pressing step of applying pressure to the optical part 10 so that its center is concave and deformed.

[0057] The intraocular lens injection device 2 also has a supporting part pushing member, which is specifically a push rod 22 in this embodiment. The push rod 22 can be inserted into the barrel 24 from the tail end opening of the barrel 24. When the intraocular lens 1 is implanted, the push rod 22 is pushed into the barrel 24, and first pushes the first supporting part 11 toward the optical part 10, so that the first supporting part 11 is S-shaped and approaches the optical part 10, and a part of the first supporting part 11 is in contact with the optical part 10. And through the thrust transmission of the first supporting part 11, the intraocular lens 1 is pushed as a whole toward the direction of the front mouth 23. That is, the push rod 22 performs the supporting part pushing step, pushing the first supporting part 11 toward the optical part 10, so that a part of the first supporting part 11 is in contact with the optical part 10.

[0058] Specifically, the barrel 24 has a chamber for placing the intraocular lens 1. The length of the chamber is suitable for loading the intraocular lens 1 with its first support portion 11 unfolded. The first support portion 11 of the loaded intraocular lens 1 is located in the pushing path of the push rod 22. When the push rod 22 is pushed, the top of the push rod 22 can move to dock with the first bending portion 112 of the first support portion 11, thereby forming a Figure 6 The push status is shown.

[0059] Figure 7 yes Figure 6 The partially enlarged cross-sectional view shown in part A is a partially enlarged cross-sectional view of the front end portion of the push rod 22 of the intraocular lens injection device 2 of this embodiment when the push rod 22 is vertically cross-sectionally viewed in the axial direction. Figure 8 yes Figure 6 Part A in the figure is a partially enlarged cross-sectional view of a part of the first support portion 11 when it is embedded in the front end of the push rod 22.

[0060] As a preferred embodiment, Figure 7 As shown in FIG. 1 , a notch 221 is formed at the front end of the push rod 22 in the form of a recessed front end surface of the push rod. When the push rod 22 of the intraocular lens injection device 2 is pushed toward the intraocular lens 1 and partially contacts the first support portion 11, as shown in FIG. Figure 8 As shown, a portion of the first supporting portion 11 will be embedded in the notch portion 221 at the front end of the push rod, so that the artificial lens 1 including the first supporting portion 11 can stably withstand the thrust from the push rod 22, and the first supporting portion 11 will not slip off the front end of the push rod 22, thereby ensuring that the push rod 22 of the artificial lens pushing device 2 can stably and reliably perform the supporting portion pushing step.

[0061] In addition, as the push rod 22 continues to execute the supporting portion pushing step, the first supporting portion 11 moves closer to the optical portion 10, and the edge portion of the optical portion 10 can also be embedded in the front end notch portion 221 of the push rod (the embedded state is not shown in the figure), so that not only the first supporting portion 11 is more stable when pushed, but the optical portion 10 is also embedded in the front end notch portion 221 of the push rod as the edge, so that the entire artificial lens 1 can more stably withstand the thrust of the push rod 22, thereby ensuring the stability and smoothness of the entire pushing process.

[0062] The intraocular lens push-in device 2 also has an optical part curling member, which is specifically the front nozzle 23 of the intraocular lens push-in device 2. One end of the front nozzle 23 is connected to the opening of one end of the barrel 24 and is integrated with the barrel 24. The other end of the front nozzle 23 is the push-in outlet 25. In the direction toward the push-in outlet 25, the inner wall of the front nozzle 23 gradually narrows. The gradually narrowing inner wall of the front nozzle 23 simultaneously generates an extrusion force on the two side portions of the optical part 10 so that it further changes from the concave state after pre-compression to a curled state, and is fully curled when it reaches the push-in outlet 25, and is finally pushed out of the push-in outlet 25 into the eye incision in this state to complete the implantation. In other words, the gradually narrowing inner wall of the front nozzle 23 cooperates with the push rod 22 to perform the optical part curling step, so that the two side portions of the optical part 10 can be curled in the direction perpendicular to the pushing direction of the push rod 22.

[0063] Furthermore, the intraocular lens injection device 2 further includes a second support portion curling member, which is a step (not shown) provided in the barrel 24. When the push rod 22 pushes the intraocular lens 1, as the second support portion 12 is pushed forward by the push force from the push rod 22, the second support portion 12 hits the step and receives resistance from the step, so that at least a portion of the second support portion 12 is curled to the optical portion 10.

[0064] The above is the intraocular lens injection device 2 provided in this embodiment, but this is only exemplary, and those skilled in the art can adjust the structure of the intraocular lens injection device 2 according to actual needs to implement the intraocular lens injection method provided in this embodiment.

[0065] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with the technical features with similar functions disclosed in this application (but not limited to) by each other to form a technical solution.

Claims

1. A method for fully curling an artificial lens, the artificial lens comprising an optical portion, a first supporting portion and a second supporting portion extending outwardly and symmetrically arranged in the circumference of the optical portion, characterized in that: The method for fully curling the intraocular lens comprises: Optical part pre-pressing step: applying pressure to the optical part to make its center concave and deform; Support portion pushing step: the first support portion is S-shaped, and includes a first bending portion and a second bending portion in sequence from a connecting portion of the first support portion and the optical portion to an end portion of the first support portion, and the first bending portion of the first support portion is pushed toward the optical portion so that the second bending portion of the first support portion abuts against the optical portion, and the end portion of the first support portion does not touch the optical portion, and the pushing direction of the first support portion is consistent with the moving direction of the first support portion and the optical portion; The optical part curling step is to curl the two side parts of the optical part toward each other in a pushing direction perpendicular to the supporting part pushing step.

2. The method for fully curling an intraocular lens according to claim 1, characterized in that: The method further comprises a step of curling the second supporting portion, wherein at least a portion of the second supporting portion is curled to the optical portion.

3. The method for fully curling an intraocular lens according to claim 2, characterized in that: In the second supporting portion curling step, the entire second supporting portion is curled to the optical portion.

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