A side push assembly for an intraocular lens injector

Abstract

This invention relates to the field of intraocular lens (IOL) injector technology, specifically to a side-push assembly for an IOL injector. It includes an outer cylinder of an injector, with an injector rod movably mounted on one side of the inner cavity. On the other side of the outer cylinder are an IOL side-push guide head assembly and an IOL pre-installation assembly. The inner cavity of the outer cylinder contains a side-push piston rod and a sealing limit ring. The beneficial effect is that, by designing the IOL side-push guide head assembly to cooperate with the IOL pre-installation assembly, during IOL pre-installation, the lens placement frame is squeezed during assembly, causing the pre-installed lens inside the lens placement cavity to slide smoothly into the movable side-push guide head under the pressure and lubrication of the protective fluid, thus completing the lens installation. The entire process does not require any tools for squeezing and will not cause significant damage to the lens.

Description

Technical Field

[0001] This invention belongs to the technical field of intraocular lens injectors, and specifically relates to a side-push component for an intraocular lens injector. Background Technology

[0002] Intraocular lens implantation (IOL) is a surgical procedure to treat cataracts. During IOL implantation, an IOL injector is used to guide and implant the intraocular lens into the patient's eye. The IOL injector is a medical device used to implant the IOL into the eye. The side-push assembly is a key component of the injector, responsible for pushing the folded or rolled-up IOL from the injector and delivering it into the eyeball. The side-push assembly typically contains one or more pushers to propel the IOL forward. The pushers slide in guide slots, ensuring linear movement and stability. Some models use springs or elastic elements to provide thrust and ensure smooth movement of the pushers. The pushers and guide slots are usually made of biocompatible materials, such as medical-grade stainless steel or polymers, to ensure no eye irritation or infection. The side-push assembly uses the linear movement of the pushers to push the folded or rolled-up IOL from the injector and deliver it into the eyeball. However, when using an injector to implant an intraocular lens, existing technology requires the use of tweezers or similar tools to pinch the lens into the injector or place it into the lens holder, which involves repeated operations and can easily damage the lens.

[0003] A Chinese patent document with publication number CN109124827B proposes a pre-loading device for intraocular lenses. This device involves inserting an injector into a pre-loading box to quickly engage the injector with the lens support assembly. The injector is then removed, and the lens support assembly is secured to it. The injector's pressure block engages with the lens ejection slot to press the lens from the support into the injector, which is then injected into the eye. However, during the engagement and ejection process, the lens support assembly may be subjected to significant force, leading to deformation or damage, affecting the integrity and positioning of the lens.

[0004] Therefore, this invention proposes a side-push assembly for an intraocular lens injector, which solves the problem that in the prior art, the lens support assembly may be subjected to large forces during the ejection process of pre-installed intraocular lens injectors, affecting the integrity and positioning of the lens. By designing a side-push assembly and improving the side push rod, in conjunction with a deformable intraocular lens mounting component, pre-installation can be completed. At the same time, the design of the side-push assembly allows the intraocular lens to unfold slowly during the insertion process, avoiding deformation caused by large forces on the intraocular lens. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a side-push assembly for an intraocular lens injector to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a side-push assembly for an intraocular lens injector, comprising an injector outer cylinder, an injector rod movably mounted on one side of the inner cavity of the injector outer cylinder, an intraocular lens side-push guide head assembly and an intraocular lens pre-assembly assembly disposed on the other side of the injector outer cylinder, a side-push piston rod and a sealing limit ring disposed inside the injector outer cylinder, the intraocular lens side-push guide head assembly comprising a fixed head and a movable side-push guide head, the intraocular lens pre-assembly assembly comprising a lens pre-assembly box, a sealing buckle and a protective fluid storage cavity, and one side of the side-push piston rod being fixedly connected to one side of the injector rod.

[0007] Preferably, the fixed head is fixedly installed at the flat end of the outer cylinder of the booster, the movable side push guide head is movably installed inside the fixed head, an inner compression gasket is provided on the inner side of the fixed head, a sealing piston is fixedly installed on one side of the movable side push guide head, and a limiting groove adapted to the sealing piston is provided inside the outer cylinder of the booster.

[0008] Preferably, a movable sleeve is fixedly installed on the middle of one side of the sealing piston, a limiting pad is fixedly installed at one end of the movable sleeve, the inner surface of the movable sleeve is movably connected to the outer surface of the side-push piston rod, an elastic buckle is movably installed on the inner side wall of the side-push piston rod, and a groove adapted to the elastic buckle is opened inside the movable sleeve.

[0009] Preferably, a side-push incision guide head is fixedly installed at the other end of the movable sleeve. An oblique guide groove is provided on the inner side of the side-push incision guide head. A side-push piston is fixedly installed in the middle of the side of the movable sleeve near the side-push incision guide head. A lens folding bracket is symmetrically arranged on both sides of the side-push piston. A lens pushing plate is provided inside the side-push piston. One end of the side-push piston rod passes through the sealing piston, and the inner wall of the side-push piston is fixedly connected to the middle of the lens folding bracket.

[0010] Preferably, a lens placement frame is fixedly installed inside the lens pre-loading box, a lens placement cavity is provided on the inner side of the lens placement frame, a compression pad is provided between the outer side of the lens placement frame and the inner side of the lens pre-loading box, a sealing buckle is fixedly installed inside one side of the lens pre-loading box, and a protective fluid storage cavity is fixedly installed on the outer side of the other side of the lens pre-loading box.

[0011] Preferably, the sealing buckle has a sealing ring inside and an auxiliary squeezing strip outside. The outer end of the booster outer cylinder has a locking groove that matches the auxiliary squeezing strip. The protective fluid storage cavity has a protective fluid storage sac inside. A puncture injection tube is provided on the side of the protective fluid storage sac near the lens holder. A puncture port that matches the puncture injection tube is provided on one side of the lens holder.

[0012] Preferably, the sealing and limiting ring is fixedly installed inside one side of the booster outer cylinder. The middle of the sealing and limiting ring is provided with a sliding groove that matches the booster rod. A pre-fixing ring is provided on one side of the sealing and limiting ring, and a limiting stop ring is provided on one side of the pre-fixing ring. Both the pre-fixing ring and the limiting stop ring are fixedly installed inside the booster outer cylinder. A spring is fixedly installed on the other side surface of the pre-fixing ring, and an assembly hole that matches the spring is provided inside the sealing and limiting ring.

[0013] Preferably, a small fixing ring is fixedly installed on one side surface of the pre-fixing ring by a thin support rod, and a magnetic ring II is fixedly installed inside the small fixing ring. A side limiting support rod is also symmetrically fixedly installed on one side surface of the pre-fixing ring, and a bending head is provided at one end of the side limiting support rod.

[0014] Preferably, a central limiting ring is provided on one side of the bending head, the two sides of the central limiting ring are inclined platforms, the central limiting ring is fixedly installed inside the outer cylinder of the booster, and a sliding groove adapted to the movable sleeve is provided in the middle of the central limiting ring.

[0015] Preferably, a movable ring is fixedly installed in the middle of the side-push piston rod, and a magnetic ring one is fixedly installed on the outer surface of the movable ring. The magnetic ring one and the magnetic ring two have different magnetic properties, and a movable pad is fixedly installed in the middle of the outer surface of the side-push piston rod.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] By designing a side-push guide head assembly for intraocular lenses (IOLs) that works in conjunction with the pre-installed IOL assembly, during IOL pre-installation, the lens placement frame is compressed, allowing the pre-installed lens inside the lens placement cavity to slide smoothly into the movable side-push guide head under the pressure and lubrication of the protective fluid. This completes the lens installation process without the need for any tools to compress the lens, minimizing its impact. Furthermore, the design of the side-push piston rod in conjunction with the sealing limit ring allows the folded IOL to be slowly pushed inwards through the oblique guide grooves on both sides of the side-push incision guide head during the push-in process. The side-push incision guide head allows the IOL to slowly unfold as it is pushed into the incision, requiring only minor adjustments to ensure it fits snugly against the eyeball. This eliminates the need for further unfolding using syringes after insertion, minimizing damage to the IOL during implantation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the pre-assembled intraocular lens assembly and the booster outer cylinder before assembly according to the present invention.

[0019] Figure 2 This is a schematic cross-sectional view of the booster outer cylinder before assembly of the intraocular lens pre-assembly component and the booster outer cylinder of the present invention.

[0020] Figure 3 This is a schematic cross-sectional view of the pre-assembled intraocular lens assembly and the booster outer cylinder before assembly.

[0021] Figure 4 For the present invention Figure 1 A magnified structural diagram at point A.

[0022] Figure 5 For the present invention Figure 3 A magnified structural diagram at point B.

[0023] Figure 6 For the present invention Figure 3 A magnified structural diagram at point C.

[0024] Figure 7 This is a schematic diagram of the overall structure of the pre-assembled intraocular lens assembly and the booster outer cylinder of the present invention.

[0025] Figure 8 This is a schematic cross-sectional view of the booster outer cylinder after the pre-assembled intraocular lens assembly and the booster outer cylinder of the present invention are assembled.

[0026] Figure 9 This is a schematic cross-sectional view of the pre-assembled intraocular lens assembly and the booster outer cylinder of the present invention.

[0027] Figure 10 For the present invention Figure 9 A magnified structural diagram at point D.

[0028] Figure 11 This is a schematic diagram of the outer cylinder of the booster of the present invention in the state of pushing the guide head out of the moving side.

[0029] Figure 12 This is a schematic diagram of the overall structure of the active-side push guide head in the extrusion state of the present invention.

[0030] Figure 13 For the present invention Figure 12 Enlarged structural diagram at point E.

[0031] Figure 14 This is a schematic diagram of the internal structure of the booster outer cylinder of the present invention in the retracted state of the pusher head on the active side.

[0032] Figure 15 This is a schematic cross-sectional view of the front end of the booster outer cylinder of the present invention in the retracted state of the pusher head on the active side.

[0033] Figure 16 For the present invention Figure 15 A magnified structural diagram at point F.

[0034] Figure 17 This is a schematic diagram of the overall internal structure of the pre-fixed ring after its release according to the present invention.

[0035] Figure 18 This is a schematic diagram of the internal structure of the movable pad of the present invention when it is moved to its limit position.

[0036] Figure 19 For the present invention Figure 18 A magnified structural diagram at point G.

[0037] Figure 20 This is a schematic diagram of the overall exploded structure of the present invention.

[0038] Figure 21 This is a schematic diagram of the overall internal structure of the side-push piston rod of the present invention.

[0039] In the diagram: 1. Booster outer cylinder; 2. Booster rod; 3. Intraocular lens side-push guide head assembly; 31. Fixing head; 311. Inner compression gasket; 32. Movable side-push guide head; 321. Sealing piston; 322. Movable sleeve; 3221. Limiting pad; 323. Side-push incision guide head; 324. Side-push piston; 3241. Lens folding support; 3242. Lens pushing plate; 4. Intraocular lens pre-loading assembly; 41. Lens pre-loading box; 411. Compression pad; 412. Lens placement frame; 4121. Penetration... 413. Lens placement cavity; 42. Sealing buckle; 421. Sealing ring; 422. Auxiliary compression strip; 43. Protective fluid storage cavity; 44. Protective fluid storage sac; 441. Puncture injection tube; 5. Side-push piston rod; 51. Moving ring; 52. Magnetic ring one; 53. Moving pad; 54. Elastic buckle; 6. Sealing limit ring; 61. Pre-fixed ring; 62. Limiting stop ring; 63. Spring; 64. Fixing small ring; 641. Magnetic ring two; 65. Side limiting support rod; 651. Bending head; 66. Central limiting ring. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] Example 1, please refer to Figures 1 to 21This invention provides a technical solution: a side-push assembly for an intraocular lens injector, comprising an injector outer cylinder 1, an injector rod 2 movably mounted on one side of the inner side of the injector outer cylinder 1, an intraocular lens side-push guide head assembly 3 and an intraocular lens pre-assembly assembly 4 disposed on the other side of the injector outer cylinder 1, a side-push piston rod 5 and a sealing limit ring 6 disposed inside the injector outer cylinder 1, the intraocular lens side-push guide head assembly 3 including a fixed head 31 and a movable side-push guide head 32, the intraocular lens pre-assembly assembly 4 including a lens pre-assembly box 41, a sealing buckle 42 and a protective fluid storage cavity 43, one side of the side-push piston rod 5 being fixedly connected to one side of the injector rod 2, the fixed head 31 being fixedly mounted on the flat end of the injector outer cylinder 1, the movable side-push guide head 32 being movably mounted inside the fixed head 31, an inner compression gasket 311 disposed inside the fixed head 31, a sealing piston 321 being fixedly mounted on one side of the movable side-push guide head 32, and a sealing piston 321 being fixedly mounted inside the injector outer cylinder 1. A limiting groove adapted to the plug 321 is provided. A movable sleeve 322 is fixedly installed in the middle of one side of the sealing piston 321. A limiting pad 3221 is fixedly installed at one end of the movable sleeve 322. The inner surface of the movable sleeve 322 is movably connected to the outer surface of the side-push piston rod 5. An elastic buckle 54 is movably installed on the inner side wall of the side-push piston rod 5. A groove adapted to the elastic buckle 54 is opened inside the movable sleeve 322. A side-push cut-out guide head 323 is fixedly installed at the other end of the movable sleeve 322. The inner side of the side-push incision guide head 323 is provided with an oblique guide groove. The movable sleeve 322 is fixedly installed with a side-push piston 324 in the middle of the side near the side-push incision guide head 323. The two sides of the side-push piston 324 are symmetrically provided with lens folding brackets 3241. The inside of the side-push piston 324 is provided with a lens pushing plate 3242. One end of the side-push piston rod 5 passes through the sealing piston 321 and the inner wall of the side-push piston 324 and is fixedly connected to the middle of the lens folding bracket 3241.

[0042] In this embodiment, the outer cylinder 1 of the booster and the booster rod 2 form a booster assembly for an intraocular lens. The intraocular lens side-push guide head assembly 3 is installed at the flat end of the outer cylinder 1 of the booster. The intraocular lens side-push guide head assembly 3 consists of a fixed head 31 and a movable side-push guide head 32. One end of the movable side-push guide head 32 is a side-push incision guide head 323. The side-push incision guide head 323 can be in the pushed-out state and fit against the lower part of the eye incision. The side-push piston rod 5 pushes out the lens pusher plate 3242 and compresses the lens folding bracket 3241. The folded intraocular lens can be slowly pushed inward from both sides of the eye incision through the oblique guide grooves on both sides. During the pushing process, compared with the traditional round needle, the side-pushing incision guide head 323 is designed as a flat tube. With the oblique guide grooves on both sides, its special shape design can also make the intraocular lens slowly rebound and unfold during the process of being pushed into the incision. Only minor adjustments are needed afterward to make it fit the eyeball. There is no need to use a needle tool to unfold it again after insertion, thus minimizing damage to the eye lens implantation process.

[0043] Example 2, please refer to Figures 1 to 21 Based on Embodiment 1, to facilitate the installation of the intraocular lens into the movable-side push guide head 32, this embodiment further proposes that a lens placement frame 412 is fixedly installed inside the lens pre-loading box 41, a lens placement cavity 413 is provided on the inner side of the lens placement frame 412, a compression pad 411 is provided between the outer side of the lens placement frame 412 and the inner side of the lens pre-loading box 41, a sealing buckle 42 is fixedly installed inside one side of the lens pre-loading box 41, and a sealing buckle 42 is fixedly installed on the outer side of the other side of the lens pre-loading box 41. The device is equipped with a protective fluid storage chamber 43, a sealing ring 421 is provided inside the sealing buckle 42, an auxiliary squeezing strip 422 is provided on the outside of the sealing buckle 42, a locking groove adapted to the auxiliary squeezing strip 422 is provided on the outside of the flat end of the booster outer cylinder 1, a protective fluid storage sac 44 is provided inside the protective fluid storage chamber 43, a puncture injection tube 441 is provided on the side of the protective fluid storage sac 44 near the lens placement frame 412, and a puncture port 4121 adapted to the puncture injection tube 441 is provided on the side of the lens placement frame 412.

[0044] In this embodiment, it should be noted that after the intraocular lens is manufactured, it is directly stored in the lens placement cavity 413 formed inside the lens placement frame 412 inside the lens pre-loading box 41. The front end is sealed with a sealing buckle 42, and the protective fluid storage cavity 43 at the rear end needs to be pre-filled with a protective fluid storage sac 44. The protective fluid storage sac 44 mainly contains protective fluid, which plays a lubricating and protective role during the intraocular lens pushing process. The middle part of the sealing ring 421 can be punctured by the long tip at the bottom of the side-push incision guide head 323. One end of the auxiliary extrusion strip 422 extends into the space between the outer side of the lens placement frame 412 and the inner side of the lens pre-loading box 41. The auxiliary extrusion strip 422 is mainly connected by connecting short pieces on both sides. Under the action of thrust, the connecting short pieces will break. The auxiliary compression strip 422 is directly inserted into the inner side of the lens pre-assembly box 41. The specific installation process of the artificial lens is as follows: First, the auxiliary compression strip 422 is engaged with the external locking groove of the flat end of the booster outer cylinder 1. At this time, the movable side push guide head 32 is in its initial position inside the fixed head 31, and the side push inlet guide head 323 is exposed. While pressing the booster rod 2, the booster outer cylinder 1 is pushed as a whole so that the side push inlet guide head 323 pierces the sealing ring 421. As the booster rod 2 is pressed, it pushes the side push piston rod 5. The movable sleeve 322 is engaged with the elastic buckle 54. As the side push piston rod 5 is pushed and moved, the sealing piston 321 moves to the front limit position of the limiting slide groove inside the booster outer cylinder 1. At this time, the front end of the movable side push guide head 32 is fully engaged. The lens is pushed into the lens placement cavity 413. The inner compression pad 311 is compressed and contracted by the movable side push guide head 32. At this time, the lens folding support 3241 will naturally unfold. When the auxiliary compression strip 422 is pushed and inserted into the lens pre-loading box 41, the auxiliary compression strip 422 will compress the compression pad 411, causing the compression pad 411 to deform and compress the lens placement frame 412 inward. The puncture port 4121 on one side of the lens placement frame 412 is punctured by the puncture injection tube 441. At the same time, the lower end of the compression pad 411 will compress the outside of the protective fluid reservoir 44, causing the protective fluid to be squeezed into the lens placement frame 412 through the puncture injection tube 441. However, the lens placement frame 412 is compressed, causing the lens placement cavity 413 to... The pre-installed lens is slidably pushed into the movable side guide head 32 under the pressure and lubrication of the protective fluid, completing the lens installation. The entire process does not require any tools for squeezing, and will not cause significant impact on the lens. Then, the push rod 2 is pulled outward to break through the initial position until the magnetic ring 52 and the magnetic ring 641 come into contact and attract each other due to their opposite magnetism. The side push piston rod 5 drives the moving ring 51 to move, retracting the movable side guide head 32 into the fixed head 31. At this time, the lens folding bracket 3241 is squeezed inward by the inner compression pad 311, folding the lens inside the movable side guide head 32. Then, the lens pre-installation box 41 can be directly pulled out and discarded, and then left stationary.Preparing for a boost.

[0045] Example 3, please refer to Figures 1 to 21 Based on Embodiment 2, to ensure precise injection of the intraocular lens into the eye incision, this embodiment further proposes that a sealing limiting ring 6 be fixedly installed inside one side of the booster outer cylinder 1. The sealing limiting ring 6 has a groove in its center that matches the booster rod 2. A pre-fixing ring 61 is provided on one side of the sealing limiting ring 6, and a limiting retaining ring 62 is provided on one side of the pre-fixing ring 61. Both the pre-fixing ring 61 and the limiting retaining ring 62 are fixedly installed inside the booster outer cylinder 1. A spring 63 is fixedly installed on the other side surface of the pre-fixing ring 61. An assembly hole matching the spring 63 is provided inside the sealing limiting ring 6. A fixing small ring 64 is fixedly installed on one side surface of the pre-fixing ring 61 via a thin support rod. A magnetic ring 641 is fixedly installed inside the ring 64. A side limiting support rod 65 is also symmetrically fixedly installed on one side surface of the pre-fixed ring 61. A bending head 651 is provided at one end of the side limiting support rod 65. A middle limiting ring 66 is provided on one side of the bending head 651. The two sides of the middle limiting ring 66 are inclined platforms. The middle limiting ring 66 is fixedly installed inside the outer cylinder 1 of the booster. A sliding groove that matches the movable sleeve 322 is provided in the middle of the middle limiting ring 66. A moving ring 51 is fixedly installed in the middle of the side thrust piston rod 5. A magnetic ring 52 is fixedly installed on the outer surface of the moving ring 51. The magnetic ring 52 and the magnetic ring 641 have different magnetic properties. A moving pad 53 is fixedly installed in the middle of the outer surface of the side thrust piston rod 5.

[0046] In this embodiment, the sealing limiting ring 6 mainly serves to limit and seal the booster rod 2. In the initial position, the pre-fixing ring 61 and the limiting retaining ring 62 are separate. The pre-fixing ring 61 is mainly fixed to the inside of the booster outer cylinder 1 through a connecting piece. After the lens is pre-installed, it will be pulled outward from the booster rod 2 to break through the initial position. At this time, the side push piston rod 5 is pulled by the booster rod 2, and the moving ring 51 and the moving pad 53 both move towards the pre-fixing ring 61. During the movement, the moving pad 53 will squeeze the side limiting support rod 65 to unfold it, which facilitates the movement of the sleeve 322 and the limiting ring 65. Positioning pad 3221 moves until the magnetic ring 52 in the middle of the moving ring 51 contacts the magnetic ring 641. Due to their different magnetic properties, they attract and merge into one. At this time, the positioning pad 3221 is inside the bending head 651. When pushing, the main pusher rod 2 is pushed to push out the side piston rod 5. At this time, because the magnetic ring 641 is attracted by the magnetic ring 52, the fixing ring 64 and the pre-fixing ring 61 move as a whole, causing the connection between the pre-fixing ring 61 and the inner side of the booster outer cylinder 1 to break. The pre-fixing ring 61 will be pushed out by the spring 63, causing the side limiting support rod 65 and the bending head 651 to be limited to the center. As one side of ring 66 moves, the bending head 651 is blocked by the inclined surface of the central limiting ring 66 and bends, locking the position of the limiting pad 3221. At this time, the movable sleeve 322 can no longer move. The side push incision guide head 323 has been pushed out, but the lens folding support 3241 still maintains the convergence state of the lens. The limiting ring 62 limits the movement of the pre-fixed ring 61, so that the pre-fixed ring 61, the fixed small ring 64, and the side limiting support rod 65 all remain in the same position. At this time, the pusher rod 2 is pushed to make the side push piston rod 5 continue to move forward, and the moving ring 51 and the magnetic attraction When ring 52 separates from the fixed small ring 64, the elastic buckle 54 is compressed and contracted by the inner wall of the movable sleeve 322. The side-push piston rod 5 can move away from the movable sleeve 322, pushing out the lens pusher 3242. During the pushing process, the lens folding bracket 3241 will be compressed, allowing the folded artificial lens to be slowly pushed inward from both sides of the eye incision through the oblique guide grooves on both sides of the side-push incision guide head 323, until the moving pad 53 moves to one side of the limiting pad 3221 and is fixed in position. The side-push piston rod 5 also reaches the limit position, avoiding excessive pushing that could damage the eye.

[0047] Example 4, please refer to Figures 1 to 21 Based on Example 4, this example also proposes a method for using a side-push assembly for an intraocular lens injector, including the following steps:

[0048] Step 1: Engage the auxiliary compression strip 422 with the external locking groove at the flat end of the booster outer cylinder 1. While pressing the booster rod 2, push the booster outer cylinder 1 as a whole so that the side push inlet guide head 323 pierces the sealing ring 421. The side push piston rod 5 is pushed by the booster rod 2, causing the sealing piston 321 to move to the front limit position of the limiting slide groove inside the booster outer cylinder 1. At this time, the front end of the movable side push guide head 32 is pushed into the lens placement cavity 413. The inner compression pad 311 is compressed and contracted by the movable side push guide head 32, and the lens folding support 3241 will naturally unfold. The auxiliary compression strip 422 is pushed and inserted. When the lens is placed inside the lens pre-loading box 41, the auxiliary compression strip 422 will compress the compression pad 411, causing the compression pad 411 to deform and compress the lens placement frame 412 inward. The puncture port 4121 on one side of the lens placement frame 412 is punctured by the puncture injection tube 441. At the same time, the lower end of the compression pad 411 will compress the outer side of the protective fluid storage sac 44, causing the protective fluid to be squeezed into the lens placement frame 412 through the puncture injection tube 441. The lens pre-loaded in the lens placement cavity 413 is then slid into the movable side push guide head 32 under the compression and lubrication of the protective fluid, thus completing the lens installation.

[0049] Step 2: Pull the push rod 2 outward to break through the initial position until the magnetic ring 1 52 and the magnetic ring 2 641 come into contact and attract each other due to their different magnetic properties. The side push piston rod 5 drives the moving ring 51 to move and retract the movable side push guide head 32 into the interior of the fixed head 31. At this time, the lens folding bracket 3241 is squeezed inward by the inner compression pad 311 and folds the lens inside the movable side push guide head 32. Then, keep it still and directly pull out and discard the lens pre-loading box 41 as a whole.

[0050] Step 3: Propel the pusher rod 2 to extend the side-push piston rod 5. At this point, the magnetic ring 641 is attracted by the magnetic ring 52, causing the fixed small ring 64 and the pre-fixed ring 61 to move as a whole. This causes the connection between the pre-fixed ring 61 and the inner side of the pusher outer cylinder 1 to break. The pre-fixed ring 61 is then pushed out by the spring 63, causing the side-limiting support rod 65 and the bending head 651 to move towards one side of the central limiting ring 66. The bending head 651 is blocked by the inclined surface of the central limiting ring 66 and bends, locking the position of the limiting pad 3221. At this point, the side-push incision guide head 323 has been extended, but the lens folding support 3241 still maintains its convergence position on the lens. The limiting ring 62 limits the movement of the pre-fixed ring 61, preventing the pre-fixed ring 61 and the fixed small ring from moving. 64. With the side limiting support rod 65 remaining in the same position, the pusher rod 2 is pushed forward to make the side push piston rod 5 continue to move forward. The moving ring 51 and the magnetic suction ring 52 separate from the fixed small ring 64. At this time, the elastic buckle 54 is squeezed and contracted by the inner wall of the movable sleeve 322. The side push piston rod 5 can be disengaged from the movable sleeve 322 and move to push out the lens push plate 3242. During the pushing process, the lens folding bracket 3241 will be squeezed so that the folded artificial lens can be slowly pushed inward from both sides of the eye incision through the oblique guide grooves on both sides of the side push incision guide head 323. This continues until the moving pad 53 moves to one side of the limiting pad 3221 and is fixed in position. The side push piston rod 5 also reaches the limit position. At this time, the pusher rod 2 can no longer be pushed, and the artificial lens is injected.

[0051] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A side-push assembly for an intraocular lens injector, comprising an injector outer cylinder, wherein an injector rod is movably mounted on one side of the inner side of the injector outer cylinder, characterized in that: On the other side of the booster outer cylinder, an intraocular lens (IOL) side-push guide head assembly and an IOL pre-loading assembly are provided. Inside the booster outer cylinder, a side-push piston rod and a sealing limit ring are provided. The IOL side-push guide head assembly includes a fixed head and a movable side-push guide head. The IOL pre-loading assembly includes an IOL pre-loading box, a sealing buckle, and a protective fluid storage cavity. One side of the side-push piston rod is fixedly connected to one side of the booster rod. An IOL placement frame is fixedly installed inside the IOL pre-loading box. An IOL placement cavity is provided on the inner side of the IOL placement frame. A compression pad is provided between the outer side of the IOL placement frame and the inner side of the IOL pre-loading box. The outer side of the sealing buckle... An auxiliary squeezing bar is provided. The outer flat end of the booster outer cylinder is provided with a locking groove adapted to the auxiliary squeezing bar. The protective fluid storage cavity is provided with a protective fluid storage bladder. A puncture injection tube is provided on the side of the protective fluid storage bladder near the lens placement frame. A puncture port adapted to the puncture injection tube is provided on the side of the lens placement frame. When the auxiliary squeezing bar is pushed and inserted into the lens pre-loading box, the auxiliary squeezing bar will squeeze the squeezing pad, causing the squeezing pad to deform and squeeze the lens placement frame inward. The lens placement frame is squeezed, and the lens pre-loaded in the lens placement cavity is slid and squeezed into the movable side push guide head under the squeezing and lubrication of the protective fluid.

2. The side-push assembly for an intraocular lens injector according to claim 1, characterized in that: The fixed head is fixedly installed at the flat end of the outer cylinder of the booster, and the movable side push guide head is movably installed inside the fixed head. An inner compression gasket is provided on the inner side of the fixed head, and a sealing piston is fixedly installed on one side of the movable side push guide head. A limiting groove adapted to the sealing piston is provided inside the outer cylinder of the booster.

3. The side-push assembly for an intraocular lens injector according to claim 2, characterized in that: A movable sleeve is fixedly installed on the middle of one side of the sealing piston. A limiting pad is fixedly installed at one end of the movable sleeve. The inner surface of the movable sleeve is movably connected to the outer surface of the side-push piston rod. An elastic buckle is movably installed on the inner side wall of the side-push piston rod. A groove adapted to the elastic buckle is opened inside the movable sleeve.

4. The side-push assembly for an intraocular lens injector according to claim 3, characterized in that: The other end of the movable sleeve is fixedly installed with a side-push incision guide head. The inner side of the side-push incision guide head is provided with an oblique guide groove. A side-push piston is fixedly installed in the middle of the side of the movable sleeve near the side-push incision guide head. Lens folding brackets are symmetrically arranged on both sides of the side-push piston. A lens pushing plate is provided inside the side-push piston. One end of the side-push piston rod passes through the sealing piston, the inner wall of the side-push piston and is fixedly connected to the middle of the lens folding bracket.

5. The side-push assembly for an intraocular lens injector according to claim 1, characterized in that: A sealing buckle is fixedly installed inside one side of the lens pre-loading box, and a protective fluid storage chamber is fixedly installed outside the other side of the lens pre-loading box.

6. The side-push assembly for an intraocular lens injector according to claim 1, characterized in that: The sealing buckle has a sealing ring inside.

7. The side-push assembly for an intraocular lens injector according to claim 1, characterized in that: The sealing and limiting ring is fixedly installed inside one side of the booster outer cylinder. The middle of the sealing and limiting ring is provided with a sliding groove that matches the booster rod. A pre-fixing ring is provided on one side of the sealing and limiting ring, and a limiting stop ring is provided on one side of the pre-fixing ring. Both the pre-fixing ring and the limiting stop ring are fixedly installed inside the booster outer cylinder. A spring is fixedly installed on the other side surface of the pre-fixing ring, and an assembly hole that matches the spring is provided inside the sealing and limiting ring.

8. The side-push assembly for an intraocular lens injector according to claim 7, characterized in that: A small fixing ring is fixedly installed on one side surface of the pre-fixing ring by a thin support rod. A magnetic ring II is fixedly installed inside the small fixing ring. A side limiting support rod is also symmetrically fixedly installed on one side surface of the pre-fixing ring. One end of the side limiting support rod is provided with a bending head.

9. A side-push assembly for an intraocular lens injector according to claim 8, characterized in that: A central limiting ring is provided on one side of the bending head. The two sides of the central limiting ring are inclined platforms. The central limiting ring is fixedly installed inside the outer cylinder of the booster. A sliding groove adapted to the movable sleeve is provided in the middle of the central limiting ring.

10. A side-push assembly for an intraocular lens injector according to claim 1, characterized in that: A movable ring is fixedly installed in the middle of the side-push piston rod, and a magnetic ring one is fixedly installed on the outer surface of the movable ring. The magnetic ring one and the magnetic ring two have different magnetic properties. A movable pad is fixedly installed in the middle of the outer surface of the side-push piston rod.

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