A removable pre-installed intraocular lens implantation system

Abstract

The present invention discloses a detachable preloaded intraocular lens implantation system, comprising an implanter and a detachable introduction head assembly, the implanter comprising a sleeve, a push rod, a push pin, a snap cap and a damping ring, the push pin is arranged in the sleeve, the tail of the push pin is connected to the push rod, the push pin, the push rod and the sleeve are connected by the snap cap, and the damping ring is arranged between the push pin and the sleeve; the detachable introduction head assembly comprises an introduction head, a preloaded chamber and an intraocular lens. The present invention can effectively reduce the risk of the lens being contaminated and damaged, can prevent the loop from being clamped, and can ensure that the lens is not damaged, the injection speed is more uniform, the injection is more stable, the injection resistance is smaller, the injection is smoother, the injection feel is better, the application prospect is broad, and it is conducive to popularization and application.

Description

Technical Field

[0001] The present invention relates to the technical field of artificial lenses, and in particular to a detachable preassembled artificial lens implantation system. Background Art

[0002] At present, intraocular lenses are the most effective method for correcting aphakia, and they are mainly implanted into the human eye through an implant system. However, there are still many defects in the intraocular lens implant system in the prior art, such as: (1) Non-preloaded injectors use tweezers to place the intraocular lens into the intraocular lens implant device, use a folding device to fold the intraocular lens, and implant it into the eye through the implant device body. The implantation process is complicated and requires trained nurses to operate, which is relatively professional; intraocular lenses are operated in the operating room, which is prone to increase the risk of contamination, increase the probability of infection in patients, and slow patient recovery; (2) The initial state of the preloaded injector part has no temporary limit, which can easily cause the operator to inject incorrectly, resulting in lens damage; the initial state of the preloaded injector part has a temporary limit, but it is in the form of a buckle. After pushing through the buckle, the friction between the buckle and the sleeve product is large, and the injection resistance is large; (3) The preloaded implant system pre-compresses the folded lens. The lens is a part of the pre-installed implant system, and some parts require a separate motion mechanism to pre-press the foldable lens. The operation is cumbersome, and if the doctor forgets to pre-press the foldable lens, the lens may not be folded, or the resistance during the injection process is large, and the injection cannot be completed. There are too many parts in the product, and the unit price of the product cost increases; (4) The pre-installed implant system is a push-pull type, and the resistance during the injection process is large, which makes the doctor experience poor; (5) The pre-installed implant system is a push-pull type. The push rod and the sleeve are in direct contact and friction. There is a sense of frustration during the injection process, and the injection speed is uneven; (6) The current pre-installed implant system is a silicone head push-in, which is easy to clamp the loop. After the loop is clamped, the lens cannot be removed, which damages the lens; (7) The pre-installed implant system is an integrated product, and some of the introduction heads cannot be disassembled. After the introduction head is disassembled, it cannot be sold as a separate product. Therefore, it is urgent to develop a detachable pre-installed intraocular lens implant system.

[0003] In view of this, the present invention is proposed. Summary of the invention

[0004] The purpose of the present invention is to provide a detachable preinstalled intraocular lens implantation system, which can effectively reduce the risk of lens contamination and damage, prevent loop pinching, and ensure that the lens is not damaged. The injection speed is more uniform, the injection is more stable, the injection resistance is smaller, the injection is smoother, the injection feel is better, the application prospect is broad, and it is conducive to popularization and application.

[0005] In order to achieve the above-mentioned purpose, the present invention provides a detachable preloaded intraocular lens implantation system, including an implanter and a detachable introduction head assembly, the implanter including a sleeve, a push rod, a push pin, a snap cap and a damping ring, the push pin is arranged in the sleeve, the tail of the push pin is connected to the push rod, the push pin, the push rod and the sleeve are connected by the snap cap, and the damping ring is arranged between the push pin and the sleeve; the detachable introduction head assembly includes an introduction head, a preloaded bin and an intraocular lens, the center circle of the intraocular lens is the lens body, the center position of the lens body is the optical zone, the optical zone is a smooth curved surface, and the edge of the lens body is mirror-imaged with a front support loop and a rear support loop; the middle part of the introduction head is provided with a snap-fit ​​surface, the left side of the rear end of the introduction head is provided with an introduction head slot 2, the introduction head is provided with an introduction head inner cavity, and the intraocular lens is pushed into the human eye through the introduction head inner cavity;The pre-loading chamber comprises an upper pre-loading chamber and a lower pre-loading chamber, wherein the upper pre-loading chamber and the lower pre-loading chamber are directly connected with a pre-loading chamber folding position, and the upper pre-loading chamber and the lower pre-loading chamber are clamped together by deformation of the pre-loading chamber folding position, a sleeve clamping groove is provided at the front end of the upper pre-loading chamber, an upper clamping groove 2 is provided at the rear end of the sleeve clamping groove, an upper guide groove for a push pin is provided in the middle of the upper pre-loading chamber, a viscoelastic injection hole is provided on the outer side of the tail end of the upper guide groove of the push pin, and the outer side and the inner side of the viscoelastic injection hole are connected, and during use, the viscoelastic agent is injected into the inner cavity of the introduction head through the viscoelastic injection hole, upper clamping grooves 1 are provided on both sides of the upper guide groove of the push pin, and an introduction head is provided at the front end of the folding position of the pre-loading chamber. A snap-fitting groove is arranged on the head, a lower snap-fitting buckle is arranged at the rear end of the lower pre-installation chamber, a sleeve snap-fitting hook is arranged at the front end of the lower snap-fitting buckle, a crystal optical zone pre-installation area is arranged in the middle of the lower pre-installation chamber, the edge position of the crystal optical zone pre-installation area is high, and the center position is low, and the artificial lens is pre-installed in the crystal optical zone pre-installation area through a smooth curved surface transition, and the crystal body is supported by the edge of the crystal optical zone pre-installation area, so that the optical zone of the artificial lens is suspended in mid-air, so as to avoid the friction between the optical zone and the pre-installation chamber and damage to the artificial lens, a push pin lower guide groove is arranged on the bottom side of the central axis of the crystal optical zone pre-installation area, and lower snap-fitting grooves are arranged on the left and right sides of the crystal optical zone pre-installation area. The engagement groove is connected to the upper engagement groove 1 by a snap buckle, and the lower engagement buckle is connected to the upper engagement groove 2 by a snap buckle, and the upper pre-loading chamber is fixedly connected to the lower pre-loading chamber by four snap buckles to ensure stable and reliable push injection. A rear loop support surface is provided on the right rear side of the pre-loading area of ​​the optical zone of the lens, and the rear loop support surface is higher than the highest point of the optical zone after the artificial lens is placed, and the rear loop support surface gradually rises from back to front, and the rear support loop is placed on the rear loop support surface. During the push injection process, the push needle of the implanter first contacts the rear support loop, so that the rear support loop is pushed to the upper side of the lens body to ensure that the rear support loop is wrapped by the lens body. The front left side of the pre-loading area of ​​the optical zone of the lens is provided The loop support surface, the front loop support surface is higher than the highest point of the optical zone after the artificial lens is placed, the front support loop is placed on the front loop support surface, and the front loop support surface has the function of blocking the front support loop, the front loop support surface is provided with a clamping column on the left front side, the clamping column and the guide head clamping slot are limited to prevent the guide head from moving left and right, and the lower clamping groove of the guide head is provided between the pre-installed area of ​​the lens optical zone and the folding position of the pre-installed bin. After the upper pre-installed bin and the lower pre-installed bin are folded, the lower clamping groove of the guide head and the clamping groove on the guide head form a complete clamping groove, which cooperates with the clamping surface of the guide head to limit the forward and backward movement of the guide head and firmly fix the guide head in the pre-installed bin. ;

[0006] Preferably, a rotating handle is provided at the rear end of the push rod, and the rotating handle is plum blossom-shaped. When the doctor operates it, it can prevent slipping and increase the aesthetic appearance. A reduction zone is provided on the inner side of the rotating handle, which is formed equidistantly from the rotating handle, which can ensure the uniformity of wall thickness and facilitate the injection molding process, and can reduce material weight and reduce costs. A forward stop surface is provided on the front side of the rotating handle, and a crystal folding and rotating push-injection area is provided at the front end of the forward stop surface. A rotating external thread is provided on the crystal folding and rotating push-injection area. The rotating external thread is a double thread, and an external thread stop point is provided on the front end face of the rotating external thread. A crystal pre-loaded folding and linear push-injection area is provided at the front end of the external thread stop point. A guide groove is provided at the front end of the crystal pre-loaded folding and linear push-injection area, and a clamping groove is provided at the rear end of the guide groove. A rearward contact surface is provided on the front end face of the clamping groove, and a forward contact surface is provided on the rear end face of the clamping groove.

[0007] Preferably, a crystal push head is provided at the front end of the push pin, and the crystal push head is forked to facilitate the folding of the rear support loop. During the push process, the push head first contacts the rear support loop, so that the rear support loop is pushed to the upper side of the crystal body to ensure that the rear support loop is wrapped by the crystal body. The push head is guided by the push pin upper guide groove and the push pin lower guide groove to prevent the push head from deviating from the direction and affecting the push. During the push process, the crystal push head pushes the crystal body and the rear support loop to start moving forward, but the front support loop is blocked by the front loop support surface and the front support loop cannot move. When the front support loop is above the crystal body, the front support loop cannot withstand the push force, so the front support loop is forced to deform to ensure the front support loop. The lens body, the front support loop and the rear support loop move at the same time to push the artificial lens out of the inner cavity of the introduction head, so that the artificial lens is implanted into the human eye. Anti-pinching loop grooves are provided on both sides of the rear end of the lens injection head. When the rear support loop cannot be wrapped and folded by the lens body due to human operation, the rear support loop may be pushed straight into the human eye. The purpose of setting the anti-pinching loop groove is to form an avoidance groove with the front end of the introduction head. When the artificial lens enters the anti-pinching loop groove, it will not be clamped by interference. When the operator withdraws the push needle, the rear support loop automatically detaches from the introduction head, which can prevent the loop from being clamped and ensure that the lens is not damaged. The rear end of the push needle is provided with a buckle 1. When the push rod cooperates with the push needle, the buckle 1 penetrates into the guide groove. In order to facilitate the penetration, a buckle 1 deformation groove is provided on the inner side of the buckle 1, and the buckle 1 deforms in the direction of the buckle 1 deformation groove. The buckle 1 is a solid type with a boss slope, and the front end of the buckle 1 is large and the rear end is small. The guide groove is a hollow type with a boss slope, and the front end of the guide groove is larger than the front end of the buckle 1. After penetrating the guide groove, the buckle 1 rotates freely in the engaging groove. In order to prevent the push needle from falling off the push rod, the rear end of the guide groove is smaller than the rear end of the buckle 1. The rear end of the buckle 1 is provided with a forward contact surface 2. When the implanter is pushed, the forward contact surface 2 contacts the forward contact surface 1 to stop. The push rod drives the push pin to move forward, and a retreat contact surface 2 is provided at the front end of the buckle 1. When the implanter is withdrawn, the retreat contact surface 2 contacts the retreat contact surface 1 to stop, and the push rod drives the push pin to move backward. A rotating shaft is provided at the front end of the buckle 1, and the rotating shaft rotates freely in the guide groove. The length of the rotating shaft is greater than the buckle 1, which can ensure that the left and right shaking of the push rod and the push pin is reduced, thereby providing stability for the entire system. A limit guide slider is provided on one side of the periphery of the rotating shaft, initial limit grooves are provided on both sides of the limit guide slider, a limit guide slider deformation groove is provided in the middle of the limit guide slider, and a retreat stop surface 1 is provided on the rear end surface of the limit guide slider.

[0008] Preferably, two damping ring grooves are provided side by side at the front end of the rotating shaft, and damping rings are respectively installed on the two damping ring grooves. The design of two damping rings can better prevent shaking during movement and affect the injection effect. The damping ring is made of soft silicone material, has increased elasticity, and has a large tolerance. The shaking amount of the injection system is reduced again, the contact area is small, the friction force is small, and the damping makes the injection feel better. An anti-rotation groove is provided on one side of the periphery of the damping ring groove, and a forward stop bevel is provided at the front end of the damping ring groove. A limiting column section is provided between the forward stop bevel and the anti-pinching loop groove.

[0009] Preferably, the front end of the sleeve is provided with an avoidance groove for avoiding the introduction head to prevent interference fit, and pre-installed bin buckles are provided on both sides of the rear end of the avoidance groove, and the pre-installed bin buckle is connected and cooperated with the sleeve hook to limit the left and right movement of the detachable introduction head assembly, and the central part of the pre-installed bin buckle is provided with a push pin guide groove, and the push pin guide groove and the limit column cross-section are both convex cross-sections, and the single-side matching clearance between the push pin guide groove and the limit column cross-section is 0.05-0.1mm, and the limit column cross-section can guide the front and rear ends through the push pin guide groove, and can also limit the left and right and up and down movement. The pre-installed chamber buckle 1 is provided with a pre-installed chamber buckle 2 on both sides, and the pre-installed chamber buckle 2 is connected with the sleeve slot buckle. The front end of the avoidance groove is provided with an introduction head slot 1, and the center of the introduction head slot 1 is on the central axis of the implanter to ensure the stability of the push injection. The introduction head slot 1 is connected with the introduction head engagement surface buckle, and the pre-installed chamber buckle 2 is connected with the sleeve slot buckle to jointly limit the forward and backward and upward movement of the detachable introduction head assembly. The sleeve tail end is provided with a beautiful seam surface, and the outer side of the front end of the beautiful seam surface is provided with a matching indicator groove 1. The matching indicating groove is symmetrically provided with a snap-fit ​​cap slot on both sides, the rear end central axis of the sleeve is provided with a push rod movement cavity, the push rod movement cavity is injection molded and provided with a draft angle, the inner side of the front end of the beautiful seam surface is provided with an anti-sway surface, the front end surface of the anti-sway surface is provided with a snap-fit ​​cap stop surface, a guide surface is provided between the snap-fit ​​cap stop surface and the inner side of the snap-fit ​​cap slot, and the front end of the push rod movement cavity is provided with a forward stop inclined surface 1. When the push needle is pushed to the front end, the forward stop inclined surface 1 limits the forward stop inclined surface 2 from moving forward, and an anti-rotation groove 1 is provided on one side of the push rod movement cavity. Anti-rotation groove one cooperates with anti-rotation groove two to prevent rotation in the push rod motion cavity and affect the injection effect. The front end of the outer side of the anti-rotation groove one is provided with an anti-skid groove one, and the anti-skid groove one is convex or concave. The rear end of the anti-skid groove one is provided with an anti-skid groove two, and the anti-skid groove two is convex or concave. The anti-skid groove two is inclined at 45° and 135° and cross-arranged, which is not only beautiful but also can play an anti-skid role. The anti-skid groove one and the anti-skid groove two can meet the operating habits of different doctors. The lower side of the avoidance groove is provided with reinforcing ribs to increase the strength of the implanter and prevent breakage during use or transportation.

[0010] Preferably, the rear end of the locking cap is provided with an anti-pinch column, and when the push rod is pushed to the front end, a gap is formed between the forward stop surface 1 and the locking cap to prevent the operator's gloves from being pinched or the hands from being pinched, and the top surface of the anti-pinch column is provided with an forward stop surface 2. When the push rod is pushed to the front end, the forward stop surface 2 and the forward stop surface 1 form a small gap to cooperate. When the forward stop inclined surface 1 and the forward stop inclined surface 2 fail to limit, the forward stop surface 2 contacts the forward stop surface 1 to limit, and the forward stop surface 1 continues to move forward after being limited by the forward stop surface 2, ensuring that the push needle will not continue to move forward to prevent people's eyes from being stabbed. The inner side of the locking cap is provided with a rotating internal thread, and the rotating internal thread is fitted and connected with the rotating external thread. The push rod advances and retreats in the rotating internal thread spiral, and the rotating internal thread is a double thread. The smaller the push rod shakes, the better the push needle is neutral, the more uniform the injection speed is, and the more stable the injection is. The rear end face of the rotating internal thread is provided with an internal thread stop point. When the linear injection of the crystal pre-installed folded linear injection area is completed, the crystal pre-installed folded linear injection area contacts the external thread stop point through the internal thread stop point. The front end of the anti-pinch column is provided with a second matching indicator groove. During assembly, observing that the matching indicator groove 2 is coaxial with the matching indicator groove can prevent foolishness, and there is no need to observe the internal structure, which can save work hours. The front end of the matching indicator groove 2 is provided with a beauty seam ball. The beauty seam ball cooperates with the beauty seam surface to form a uniform gap around it. The gap is 0.2-0.4mm, and the appearance is more high-end and beautiful. The front end of the beauty seam ball is provided with an anti-sway surface 2. The anti-sway surface 2 and the anti-sway surface 1 have a clearance match, and the matching clearance is 0.05-0.1mm, which can reduce the shaking of the snap-fit ​​cap in the sleeve, a snap-fit ​​cap limiting surface is provided at the front end of the anti-shake surface two, the snap-fit ​​cap limiting surface cooperates with the snap-fit ​​cap stop surface to limit the snap-fit ​​cap from moving forward, a support surface is provided at the front end of the snap-fit ​​cap limiting surface, one side of the support surface is provided with an anti-rotation groove three, the anti-rotation groove three cooperates with the anti-rotation groove one to prevent rotation in the push rod movement cavity and affect the push injection effect, a plurality of limiting columns are evenly distributed on the support surface, the limiting columns cooperate with the push rod movement cavity to limit the left and right movement of the snap-fit ​​cap in the sleeve to prevent affecting the push injection effect, and two sides of the support surface parallel to the limiting columns are provided The second buckle is engaged with the snap-fitting slot of the snap-fitting cap to limit the backward movement of the snap-fitting cap. Before the second buckle is engaged with the snap-fitting slot of the snap-fitting cap, the guiding surface is an inclined surface, which is smaller when close to the snap-fitting slot and larger when away from the snap-fitting slot, so as to facilitate guiding the second buckle to smoothly enter the snap-fitting slot of the snap-fitting cap without damaging the sleeve and the snap-fitting cap. The rear side of the anti-rotation slot three is symmetrically provided with a limiting guide groove, and initial limiting columns are provided on both sides of the limiting guide groove. When the implanter is in the initial state, the initial limiting column is engaged with the initial limiting groove to limit the position, so as to prevent the push needle from moving forward during transportation, resulting in damage to the artificial lens, and to prevent When installing the detachable introduction head assembly, the lens injection head is crushed to prevent the operator from misoperating and damaging the artificial lens. When starting to inject, the operator only needs to use a little force to separate the initial limit column from the initial limit groove, and the limit guide slider is suspended in the push rod movement cavity to avoid excessive friction, the injection resistance is smaller, and the injection is smoother. When the initial limit column and the initial limit groove begin to engage, the initial limit groove is deformed toward the deformation groove of the limit guide slider. After the initial limit column and the initial limit groove are engaged, the initial limit groove rebounds through the elastic deformation principle of the plastic part, thereby achieving the locking. The rear end of the limit guide groove is provided with a second back stop surface. When the push rod pushes to the rear end, the second back stop surface and the first back stop surface form a small gap. When the initial limit column and the initial limit groove fail to engage in the limit, the second back stop surface and the first back stop surface contact and limit. The second back stop surface restricts the first back stop surface from continuing to retreat, ensuring that the push pin will not continue to move backward and prevent the push pin from detaching from the sleeve, ensuring that each product is in the same state. The limit formed by the initial limit column and the initial limit groove and the internal thread stop point constitute a crystal folding rotation push injection area to achieve rotation push injection.

[0011] The present invention provides a detachable preassembled intraocular lens implantation system, which has the following beneficial effects.

[0012] 1. The present invention adopts a pre-installed crystal, which is pre-installed in the manufacturer's clean workshop. Doctors do not need to pre-install the crystal, and can complete the operation by direct injection, which can reduce the risk of contamination and the risk of crystal damage, and improve the success rate of the operation.

[0013] 2. When the implanter of the present invention is in the initial state, the initial limit column and the initial limit groove are engaged and limited, which can not only prevent the push needle from moving forward during transportation, resulting in damage to the intraocular lens, and prevent the lens push head from being crushed when installing the detachable introduction head assembly, but also prevent the operator from operating incorrectly and damaging the intraocular lens. When starting to push, the operator only needs to use a little force to separate the initial limit column from the initial limit groove, and the limit guide slider is suspended in the push rod movement cavity to avoid excessive friction, resulting in smaller push resistance and smoother push.

[0014] 3. The present invention has a non-preloaded foldable lens and is provided with a preload chamber. The preload chamber is provided with front and rear loop support surfaces. The front and rear loop support surfaces are higher than the optical zone. During the push injection process, the push needle pushes the rear loop to move above the optical zone. When the optical zone moves, the front loop stops, so that the front loop moves above the optical zone, thereby wrapping the front and rear loops in the optical zone.

[0015] 4. The present invention is a threaded rotary push injection device, which is designed as a double thread, with a smaller push rod shaking amount, the push needle is more aligned with the center, the push injection speed is more uniform, and the push injection is more stable.

[0016] 5. The present invention is provided with a damping ring, which is installed on the push pin. The inner cavity of the sleeve is injection molded and has a draft angle. The damping ring is made of soft silicone material, has increased elasticity, and has a larger tolerance. The shaking amount of the push injection system is reduced, the contact area is small, the friction is small, and the damping makes the push injection feel better.

[0017] 6. The present invention has no silicone head, and the push pin is injection molded. The rear sides of the lens push pin push head are provided with anti-pinching loop grooves. When the rear support loop cannot be wrapped and folded by the lens body due to human operation, the rear support loop may be pushed straight into the human eye. The purpose of providing the anti-pinching loop groove is to form an avoidance groove with the front end of the introduction head. When the artificial lens enters the anti-pinching loop groove, it will not be clamped by interference. When the operator withdraws the push pin, the rear support loop automatically detaches from the introduction head, which can prevent the loop from being clamped and ensure that the lens is not damaged.

[0018] 7. The present invention can disassemble the loading chamber, the introduction head and the crystal, and the introduction head, the loading chamber and the crystal can be sold together as semi-pre-installed; the loading chamber and the introduction head can be disassembled, and the introduction head can be sold separately as non-pre-installed, or can be used in conjunction with a disposable implanter as non-pre-installed; the loading chamber can be loaded with a crystal separately and sold as a crystal packaging box; developing an implantation system can meet the needs of doctors with different habits, greatly reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A stereoscopic diagram of a detachable pre-installed intraocular lens implantation system provided by the present invention;

[0020] Figure 2A front view of a detachable pre-installed intraocular lens implantation system provided by the present invention;

[0021] Figure 3 for Figure 2 AA section view;

[0022] Figure 4 is a stereoscopic view of the implanter;

[0023] Figure 5 is a stereogram of the casing;

[0024] Figure 6 is the main view of the casing;

[0025] Figure 7 for Figure 6 CC profile of ;

[0026] Figure 8 A top view of the casing;

[0027] Fig. 9 for Figure 8 BB cross-section diagram;

[0028] Fig.10 It is the left side view of the casing;

[0029] Fig.11 A stereogram of a putter;

[0030] Fig.12 It is the front view of the putter;

[0031] Fig.13 for Fig.12 DD profile diagram;

[0032] Fig.14 It is a stereogram of a push pin;

[0033] Fig.15 This is the main view of the push pin;

[0034] Fig.16 for Fig.15 EE profile of

[0035] Fig.17 It is the left view of the push pin;

[0036] Fig.18 is a three-dimensional diagram of a snap-fit ​​cap;

[0037] Fig.19 is a front view of the snap-fit ​​cap;

[0038] Fig. 20 is a three-dimensional diagram of a detachable introduction head assembly;

[0039] Fig.21A stereogram of the introduction head;

[0040] Fig. 22 It is a three-dimensional picture of the pre-installed bin;

[0041] Fig.23 This is a schematic diagram of the structure in which the pre-loading chamber is not engaged after the crystal and the introduction head are loaded.

[0042] In the figure:

[0043] 1. Sleeve 101. Guide head slot 1 102. Push needle guide slot 103. Pre-installed chamber buckle 1 104. Pre-installed chamber buckle 2 105. Anti-skid slot 1 106. Anti-skid slot 2 107. Snap cap slot 108. Matching indicator slot 1 109. Guide surface 110. Anti-rotation slot 1 111. Snap cap stop surface 112. Reinforcement rib 113. Avoidance slot 114. Forward stop inclined surface 1 115. Anti-sway surface 1 116. Push rod movement cavity 117. Beauty seam surface 2. Push rod 201. Crystal pre-installed folding linear injection area 202. Crystal folding rotation injection area 203. Rotating handle 204. Snap slot 20 5. Guide groove 206. Reduced intersection area 207. Rotating external thread 208. Forward contact surface 1 209. Retracted contact surface 1 210. External thread stop point 211. Over-forward stop surface 1 3. Push pin 301. Crystal push injection head 302. Limit column section 303. Rotating axis 304. Buckle 1 305. Buckle 1 deformation groove 306. Limit guide slider 307. Initial limit groove 308. Limit guide slider deformation groove 309. Forward stop inclined surface 2 310. Damping ring groove 311. Forward contact surface 2 312. Retracted contact surface 2 313. Anti-rotation groove 2 314. Over-retracted stop surface 1 315 .Anti-pinching loop groove 4. Snap-on cap 401. Limiting guide groove 402. Rotating internal thread 403. Support surface 404. Initial limiting column 405. Limiting column 406. Buckle 2 407. Snap-on cap limiting surface 408. Seam ball 409. Internal thread stop point 410. Matching indicator groove 2 411. Forward stop surface 2 412. Anti-sway surface 2 413. Rear stop surface 2 414. Anti-pinching column 415. Anti-rotation groove 3 5. Damping ring 6. Introduction head 601. Introduction head snap-on surface 602. Introduction head slot 2 603. Introduction head inner cavity 7. Pre-installed bin 701. Upper pre-installed bin 702. Lower pre-installed bin 703. Folding position of pre-loading chamber 704. Clamping groove on the introduction head 705. Clamping groove on the lower part of the introduction head 706. Clamping column 707. Lower clamping groove 708. Upper clamping groove 1 709. Sleeve hook 710. Sleeve clamping groove 711. Front loop support surface 712. Back loop support surface 713. Viscoelastic injection hole 714. Upper clamping groove 2 715. Lower clamping buckle 716. Push pin lower guide groove 717. Push pin upper guide groove 718. Crystal optical zone pre-loading zone 8. Artificial lens 801. Front support loop 802. Back support loop 803. Crystal body 804. Optical zone 9. Removable introduction head assembly 10. Implanter DETAILED DESCRIPTION

[0044] The present invention is further described below in conjunction with specific embodiments and drawings to help understand the content of the present invention.

[0045] like Figure 1-Figure 3 The figures are respectively a stereoscopic view, a front view and an AA cross-sectional view of a detachable preassembled intraocular lens implantation system provided by the present invention. The detachable preassembled intraocular lens implantation system comprises an implanter 10 and a detachable introduction head assembly 9.

[0046] like Figure 4 The implanter 10 comprises a sleeve 1, a push rod 2, a push pin 3, a snap-fit ​​cap 4 and a damping ring 5. The push pin 3 is arranged in the sleeve 1, the tail of the push pin 3 is connected to the push rod 2, the push pin 3, the push rod 2 and the sleeve 1 are connected through the snap-fit ​​cap 4, and the damping ring 5 is arranged between the push pin 3 and the sleeve 1.

[0047] like Fig. 20 The detachable introduction head assembly 9 includes an introduction head 6, a pre-installed chamber 7 and an intraocular lens 8, wherein the center circle of the intraocular lens 8 is a lens body 803, the center position of the lens body 803 is an optical zone 804, the optical zone 804 is a smooth curved surface, and the edge of the lens body 803 is provided with a front support haptic 801 and a rear support haptic 802 in a mirror image.

[0048] like Fig.21 The introduction head 6 is provided with an introduction head engaging surface 601 in the middle, an introduction head clamping groove 602 is provided on the left side of the rear end of the introduction head 6, and an introduction head inner cavity 603 is provided inside the introduction head 6, through which the artificial lens 8 is pushed into the human eye.

[0049] like Figure 22-Figure 23The figures are respectively a stereoscopic view of the preloading chamber and a structural schematic diagram of the preloading chamber in the unfastened state after the crystal is loaded with the introduction head. The preloading chamber 7 comprises an upper preloading chamber 701 and a lower preloading chamber 702, wherein the upper preloading chamber 701 and the lower preloading chamber 702 are directly connected with a preloading chamber folding position 703, and the upper preloading chamber 701 and the lower preloading chamber 702 are snapped together by deformation of the preloading chamber folding position 703, a sleeve clamping groove 710 is provided at the front end of the upper preloading chamber 701, and an upper snap-fitting groove 2 714 is provided at the rear end of the sleeve clamping groove 710, and a push pin upper guide groove 717 is provided at the middle part of the upper preloading chamber 701, and a viscoelastic injection hole 713 is provided at the outer side of the rear end of the push pin upper guide groove 717, and the outer side and the inner side of the viscoelastic injection hole 713 are connected, and during use, the viscoelastic is injected into the introduction head inner cavity 603 through the viscoelastic injection hole 713, and the push pin upper guide groove 717 is provided at the middle part of the upper preloading chamber 701, and a viscoelastic injection hole 713 is provided at the outer side of the rear end of the viscoelastic injection hole 713, and the viscoelastic is injected into the introduction head inner cavity 603 through the viscoelastic injection hole 713, and the push pin upper guide groove 717 is provided at the rear end of the push pin upper guide groove 717 ... An upper engaging groove 708 is respectively provided on both sides of the upper guide groove 717 of the needle, an engaging groove 704 is provided on the introduction head at the front end of the folding position 703 of the pre-installed chamber, a lower engaging buckle 715 is provided at the rear end of the lower pre-installed chamber 702, a sleeve hook 709 is provided at the front end of the lower engaging buckle 715, a crystal optical zone pre-installed area 718 is provided in the middle of the lower pre-installed chamber 702, the edge position of the crystal optical zone pre-installed area 718 is high, and the center position is low. Through the transition of the smooth curved surface, the artificial lens 8 is pre-installed in the crystal optical zone pre-installed area 718, and the crystal body 803 is supported by the edge of the crystal optical zone pre-installed area 718, so that the optical zone 804 of the artificial lens 8 is suspended in the air to avoid the friction between the optical zone 804 and the pre-installed chamber 7 and damage to the human body. The intraocular lens 8, the optical zone preloading area 718 of the crystal is provided with a lower guide groove 716 for pushing the pin at the bottom side of the central axis, the optical zone preloading area 718 of the crystal is provided with lower snap-fit ​​grooves 707 on the left and right sides, the lower snap-fit ​​groove 707 is connected to the upper snap-fit ​​groove 1 708 by snap-fitting, the lower snap-fitting buckle 715 is connected to the upper snap-fit ​​groove 2 714 by snap-fitting, the upper preloading chamber 701 is fixedly connected to the lower preloading chamber 702 by four snaps to ensure stable and reliable push injection, the optical zone preloading area 718 of the crystal is provided with a rear loop support surface 712 on the right rear side, the rear loop support surface 712 is higher than the highest point of the optical zone 804 after the intraocular lens 8 is placed, and the rear loop support surface 712 gradually rises from the back to the front, and the rear support loop 80 2 is placed on the rear haptic support surface 712. During the push injection process, the push needle 3 of the implanter 10 first contacts the rear support haptic 802, so that the rear support haptic 802 is pushed to the upper side of the lens body 803 to ensure that the rear support haptic 802 is wrapped by the lens body 803. The left front side of the lens optical zone pre-installation area 718 is provided with an anterior haptic support surface 711, and the anterior haptic support surface 711 is higher than the highest point of the rear optical zone 804 where the artificial lens 8 is placed. The front support haptic 801 is placed on the anterior haptic support surface 711, and the anterior haptic support surface 711 has the function of blocking the front support haptic 801. The left front side of the anterior haptic support surface 711 is provided with a clamping column 706, and the clamping column 706 is limited by the second guide head slot 602 to prevent the guide head 6 from moving left and right.A lower engaging groove 705 of the guide head is provided between the lens optical zone preloading area 718 and the preloading chamber folding position 703. After the upper preloading chamber 701 and the lower preloading chamber 702 are folded, the lower engaging groove 705 of the guide head and the engaging groove 704 of the guide head form a complete engaging groove, which cooperates with the engaging surface 601 of the guide head to limit the forward and backward movement of the guide head 6 and firmly fix the guide head 6 in the preloading chamber 7.

[0050] like Figure 11-13 The figures are a stereogram, a front view and a DD cross-sectional view of the push rod. The push rod 2 is provided with a rotating handle 203 at the rear end. The rotating handle 203 is plum blossom-shaped. When the doctor operates it, it can prevent slipping and increase the aesthetic appearance. The rotating handle 203 is provided with a cross-cutting area 206 on the inner side. It is formed equidistantly from the rotating handle 203, which can ensure the uniformity of the wall thickness and facilitate the injection molding process, and can also reduce the weight of the material and reduce the cost. The rotating handle 203 is provided with a forward stop surface 211 at the front side. The forward stop surface 211 is provided with a crystal folding rotation push injection area 202 at the front end. The crystal folding rotation push injection area 206 is provided with a forward stop surface 211 at the front end. 02 is provided with a rotating external thread 207, and the rotating external thread 207 is a double thread. The front end face of the rotating external thread 207 is provided with an external thread stop point 210, and the front end of the external thread stop point 210 is provided with a crystal pre-loaded folded linear injection area 201, and the front end of the crystal pre-loaded folded linear injection area 201 is provided with a guide groove 205, and the rear end of the guide groove 205 is provided with a clamping groove 204, and the front end face of the clamping groove 204 is provided with a retreat contact surface 209, and the rear end face of the clamping groove 204 is provided with a forward contact surface 208.

[0051] like Figure 14-17The figures are respectively a stereoscopic view, a front view, an EE cross-sectional view and a left view of the push pin. A crystal push head 301 is provided at the front end of the push pin 3. The crystal push head 301 is a forked type, which is convenient for folding the rear support loop 802. During the push injection process, the push head first contacts the rear support loop 802, so that the rear support loop 802 is pushed to the upper side of the crystal body 803 to ensure that the rear support loop 802 is wrapped by the crystal body 803. The push head is guided by the push pin upper guide groove 717 and the push pin lower guide groove 716 to prevent the push head from deviating from the direction and affecting the push injection. During the push injection process, the crystal push head 301 pushes the crystal body 803 and the rear support loop 802 to start moving forward, but the front support loop 801 is blocked by the front loop support surface 711, and the front support loop 801 cannot move. When the front support loop 801 is above the crystal body 803, the front support loop 801 is blocked by the front loop support surface 711. The haptic 801 cannot withstand the injection force, so the front support haptic 801 is forced to deform, ensuring that the front support haptic 801 is wrapped by the lens body 803. At this time, the lens body 803, the front support haptic 801 and the rear support haptic 802 move simultaneously to push the artificial lens 8 out of the inner cavity 603 of the introduction head, thereby implanting the artificial lens 8 into the human eye. Anti-pinch haptic grooves 315 are provided on both sides of the rear end of the lens injection head 301. When the rear support haptic 802 cannot be wrapped and folded by the lens body 803 due to human operation, the rear support haptic 802 may be pushed straight into the human eye. The purpose of setting the anti-pinch haptic groove 315 is to form an avoidance groove 113 with the front end of the introduction head 6. When the artificial lens 8 enters the anti-pinch haptic groove 315, it will not be clamped by interference. When the push pin 3 is withdrawn, the rear support loop 802 automatically detaches from the introduction head 6, which can prevent the loop from being clamped and ensure that the crystal is not damaged. The rear end of the push pin 3 is provided with a buckle 304. When the push rod 2 cooperates with the push pin 3, the buckle 304 penetrates into the guide groove 205. In order to facilitate the penetration, the inner side of the buckle 304 is provided with a buckle deformation groove 305. The buckle 304 is deformed toward the buckle deformation groove 305. The buckle 304 is a solid type with a boss bevel. The front end of the buckle 304 is large and the rear end is small. The guide groove 205 is a hollow type with a boss bevel, with a large front end and a small rear end. The front end of the guide groove 205 is larger than the front end of the buckle 304. After penetrating the guide groove 205, the buckle 304 is in the engaging groove 20 4, in order to prevent the push pin 3 from falling off from the push rod 2, the rear end of the guide groove 205 is smaller than the rear end of the buckle 1 304, and the rear end of the buckle 1 304 is provided with a forward contact surface 2 311. When the implanter 10 is pushed, the forward contact surface 2 311 contacts the forward contact surface 1 208 to stop, and the push rod 2 drives the push pin 3 to move forward. The front end of the buckle 1 304 is provided with a backward contact surface 2 312. When the implanter 10 is withdrawn, the backward contact surface 2 312 contacts the backward contact surface 1 209 to stop, and the push rod 2 drives the push pin 3 to move backward. The front end of the buckle 1 304 is provided with a rotating shaft 303, and the rotating shaft 303 rotates freely in the guide groove 205. The length of the rotating shaft 303 is greater than that of the buckle 1 304.It can ensure that the left and right shaking of the push rod 2 and the push pin 3 is reduced, thereby providing stability for the entire system. A limit guide slider 306 is provided on one side of the periphery of the rotating shaft 303, initial limit grooves 307 are provided on both sides of the limit guide slider 306, a limit guide slider deformation groove 308 is provided in the middle of the limit guide slider 306, and a rear end surface of the limit guide slider 306 is provided with a rear stop surface 314. Two damping ring grooves 310 are arranged side by side at the front end of the rotating shaft 303, and damping rings 5 ​​are respectively installed on the two damping ring grooves 310. The design of two damping rings 5 ​​can better prevent shaking during movement and affect the injection effect. The damping ring 5 is made of soft silicone material, has increased elasticity, and has a large tolerance. The shaking amount of the injection system is reduced again, the contact area is small, the friction is small, and the damping makes the injection feel better. An anti-rotation groove 313 is arranged on one side of the periphery of the damping ring groove 310, and a forward stop inclined plane 309 is arranged at the front end of the damping ring groove 310. A limit column section 302 is arranged between the forward stop inclined plane 309 and the anti-clamping loop groove 315.

[0052] like Figure 5-Figure 10The figures shown are respectively a stereoscopic view, a front view, a CC section view, a top view, a BB section view and a left view of the sleeve. The front end of the sleeve 1 is provided with an avoidance groove 113 for avoiding the introduction head 6 to prevent interference fit. The rear ends of the avoidance groove 113 are provided with pre-installed chamber buckles 103 on both sides. The pre-installed chamber buckle 103 is connected and matched with the sleeve hook 709 to limit the left and right movement of the detachable introduction head assembly 9. The center of the pre-installed chamber buckle 103 is provided with a push pin guide groove 102. The push pin guide groove 102 and the limit column section 302 are both convex sections. The single-sided matching clearance between the push pin guide groove 102 and the limit column section 302 is 0.05-0.1mm. The limit column section 302 can not only guide the front and rear ends, but also limit the left and right, up and down movement and rotation, so as to prevent the push rod 2 from moving during the movement process. The pre-loading chamber buckle 103 is provided with a pre-loading chamber buckle 2 104 on both sides, and the pre-loading chamber buckle 2 104 is buckled with the sleeve slot 710. The front end of the avoidance groove 113 is provided with an introduction head slot 101, and the center of the introduction head slot 101 is on the central axis of the implanter 10 to ensure the stability of the push injection. The introduction head slot 101 is buckled with the introduction head engaging surface 601, and the pre-loading chamber buckle 2 104 is buckled with the sleeve slot 710 to jointly limit the forward and backward and upward movement of the detachable introduction head assembly 9. The sleeve 1 is provided with a beautiful seam surface 117 at the tail end, and the front outer side of the beautiful seam surface 117 is provided with a matching indicator groove 108. The matching indicator groove 10 8 are symmetrically provided with snap-fit ​​cap slots 107 on both sides, a push rod movement cavity 116 is provided on the central axis at the rear end of the sleeve 1, the push rod movement cavity 116 is injection molded and has a draft angle, an anti-sway surface 115 is provided on the inner side of the front end of the beautiful seam surface 117, a snap-fit ​​cap stop surface 111 is provided on the front end surface of the anti-sway surface 115, a guide surface 109 is provided between the snap-fit ​​cap stop surface 111 and the inner side of the snap-fit ​​cap slot 107, a forward stop inclined surface 114 is provided on the front end of the push rod movement cavity 116, when the push needle 3 is pushed to the front end, the forward stop inclined surface 114 limits the forward stop inclined surface 2 309 from moving forward, an anti-rotation groove 110 is provided on one side of the push rod movement cavity 116, the anti The rotation groove 110 cooperates with the anti-rotation groove 313 to prevent rotation in the push rod motion cavity 116 and affect the injection effect. The front end of the outer side of the anti-rotation groove 110 is provided with an anti-skid groove 105, and the anti-skid groove 105 is convex or concave. The rear end of the anti-skid groove 105 is provided with an anti-skid groove 106, and the anti-skid groove 106 is convex or concave. The anti-skid groove 106 is inclined at 45° and 135° and arranged crosswise, which is not only beautiful but also can play an anti-skid role. The anti-skid groove 105 and the anti-skid groove 106 can meet the operating habits of different doctors. The lower side of the avoidance groove 113 is provided with a reinforcing rib 112, which is used to increase the strength of the implanter 10 to prevent breakage during use or transportation.

[0053] like Figure 18-Figure 19The following are the stereogram and the front view of the snap cap, respectively. The snap cap 4 has a finger-pinching prevention column 414 at the rear end. When the push rod 2 is pushed to the front end, a gap is formed between the forward stop surface 1 211 and the snap cap 4 to prevent the operator's gloves from being pinched or the operator's hands from being pinched. The top surface of the finger-pinching prevention column 414 has a forward stop surface 2 411. When the push rod 2 is pushed to the front end, the forward stop surface 2 411 forms a small gap with the forward stop surface 1 211. When the forward stop inclined surface 1 114 and the forward stop inclined surface 2 309 limit When the positioning fails, the forward stop surface 211 contacts the forward stop surface 1 211 to limit the position, and the forward stop surface 211 is limited to continue to move forward through the forward stop surface 1 211 to ensure that the push pin 3 will not continue to move forward to prevent hurting people's eyes. The inner side of the locking cap 4 is provided with a rotating internal thread 402, and the rotating internal thread 402 is fitted and connected with the rotating external thread 207. The push rod 2 spirally advances and retreats on the rotating internal thread 402. The rotating internal thread 402 is a double thread. The smaller the shaking amount of the rod 2, the better the neutrality of the push needle 3, the more uniform the push speed, and the more stable the push. The rear end face of the rotating internal thread 402 is provided with an internal thread stop point 409. When the linear push of the crystal pre-installed folded linear push area 201 is completed, the crystal pre-installed folded linear push area 201 contacts the external thread stop point 210 through the internal thread stop point 409. The front end of the anti-pinch finger column 414 is provided with a matching indicator groove 210. During assembly, observe the matching indicator groove 210 and the The coaxiality of the matching indicator groove 108 can prevent fooling, and there is no need to observe the internal structure, which can save man-hours. The front end of the matching indicator groove 2 410 is provided with a beauty seam ball 408, and the beauty seam ball 408 cooperates with the beauty seam surface 117 to form a uniform gap around it, the gap is 0.2-0.4mm, and the appearance is more high-end and beautiful. The front end of the beauty seam ball 408 is provided with an anti-sway surface 2 412, and the anti-sway surface 2 412 cooperates with the anti-sway surface 115, and the matching gap is 0.05-0.1mm, which can reduce the shaking of the snap-fit ​​cap 4 in the sleeve 1, a snap-fit ​​cap limiting surface 407 is provided at the front end of the anti-shake surface 2 412, and the snap-fit ​​cap limiting surface 407 cooperates with the snap-fit ​​cap stop surface 111 to limit the snap-fit ​​cap 4 from moving forward, a support surface 403 is provided at the front end of the snap-fit ​​cap limiting surface 407, and an anti-rotation groove 3 415 is provided on one side of the support surface 403, and the anti-rotation groove 3 415 cooperates with the anti-rotation groove 1 110 to prevent the rotation in the push rod movement cavity 116 and affect the push injection effect, a plurality of limiting columns 405 are evenly distributed on the support surface 403, and the limiting columns 405 cooperate with the push rod movement cavity 116 to limit the left and right movement of the snap-fit ​​cap 4 in the sleeve 1 to prevent affecting the push injection effect, and the support surface 403 and the limiting columns 405 are arranged on the support surface 403. 5 are provided with buckles 406 on both sides parallel to each other, and the buckles 406 are buckled with the snap-fitting slot 107 to limit the snap-fitting cap 4 from moving backwards. Before the buckles 406 are buckled with the snap-fitting slot 107, the guide surface 109 is an inclined surface, which is small near the snap-fitting slot 107 and large away from the snap-fitting slot 107, so as to facilitate guiding the buckles 406 to smoothly enter the snap-fitting slot 107 without damaging the sleeve 1 and the snap-fitting cap 4. The rear side of the anti-rotation slot 415 is symmetrically provided with limiting guide grooves 401, and initial limiting posts 404 are provided on both sides of the limiting guide grooves 401. When the implanter 10 is in the initial state, the initial limiting posts 404 are engaged with the initial limiting grooves 307 to prevent the push needle 3 from moving forward during transportation. The artificial lens 8 is damaged, and the crystal injection head 301 is prevented from being crushed when the detachable introduction head assembly 9 is installed, so as to prevent the operator from making a wrong operation and damaging the artificial lens 8. When the injection starts, the operator only needs to use a little force to separate the initial limit column 404 from the initial limit groove 307, and the limit guide slider 306 is suspended in the push rod movement cavity 116 to avoid excessive friction, and the injection resistance is smaller and the injection is smoother. When the initial limit column 404 and the initial limit groove 307 are engaged, the initial limit groove 307 is deformed toward the deformation groove 308 of the limit guide slider. After the initial limit column 404 and the initial limit groove 307 are engaged, the initial limit groove 307 rebounds through the elastic deformation principle of the plastic part, thereby To achieve the engagement, the rear end of the limit guide groove 401 is provided with a second back stop surface 413. When the push rod 2 is pushed to the rear end, the second back stop surface 413 and the first back stop surface 314 form a small gap. When the initial limit column 404 and the initial limit groove 307 fail to engage and limit, the second back stop surface 413 and the first back stop surface 314 contact and limit. The second back stop surface 413 restricts the first back stop surface 314 from continuing to retreat, ensuring that the push pin 3 will not continue to move backward, preventing the push pin 3 from detaching from the sleeve 1, and ensuring that each product is in the same state. The limit formed by the initial limit column 404 and the initial limit groove 307 and the internal thread stop point 409 constitute the crystal folding rotation push injection area 202 to achieve rotation push injection.

[0054] The invention concept is described in detail using specific examples herein, and the description of the above embodiments is only used to help understand the core idea of ​​the invention. It should be pointed out that any obvious modification, equivalent substitution or other improvement made by a person of ordinary skill in the art without departing from the invention concept should be included in the protection scope of the present invention.

Claims

1. A detachable preassembled intraocular lens implantation system, characterized in that: It comprises an implanter and a detachable introduction head assembly, the implanter comprises a sleeve, a push rod, a push pin, a snap cap and a damping ring, the push pin is arranged in the sleeve, the tail of the push pin is docked with the push rod, the push pin, the push rod and the sleeve are connected by the snap cap, and the damping ring is arranged between the push pin and the sleeve; the detachable introduction head assembly comprises an introduction head, a pre-installed bin and an artificial lens, the center circle of the artificial lens is the lens body, the center position of the lens body is the optical zone, the optical zone is a smooth curved surface, and the edge of the lens body is mirror-imaged with a front support loop and a rear support loop; the middle part of the introduction head is provided with a snap-fit ​​surface, the left side of the rear end of the introduction head is provided with an introduction head slot 2, the introduction head is provided with an introduction head inner cavity inside, and the artificial lens is pushed into the human eye through the introduction head inner cavity;The pre-loading chamber comprises an upper pre-loading chamber and a lower pre-loading chamber, wherein the upper pre-loading chamber and the lower pre-loading chamber are directly connected with a pre-loading chamber folding position, and the upper pre-loading chamber and the lower pre-loading chamber are clamped together by deformation of the pre-loading chamber folding position, a sleeve clamping groove is provided at the front end of the upper pre-loading chamber, an upper clamping groove 2 is provided at the rear end of the sleeve clamping groove, an upper guide groove for a push pin is provided at the middle part of the upper pre-loading chamber, a viscoelastic injection hole is provided at the outer side of the tail end of the upper guide groove for the push pin, the outer side and the inner side of the viscoelastic injection hole are connected, and during use, the viscoelastic is injected into the inner cavity of the introduction head through the viscoelastic injection hole, and upper clamping grooves 1 are provided on both sides of the upper guide groove for the push pin, and the pre-loading chamber is provided with a plurality of upper clamping grooves. A snap-fit ​​groove on the guide head is provided at the front end of the folding position of the bin, a lower snap-fit ​​buckle is provided at the rear end of the lower pre-installed bin, a sleeve hook is provided at the front end of the lower snap-fit ​​buckle, a crystal optical zone pre-installed area is provided in the middle of the lower pre-installed bin, the edge position of the crystal optical zone pre-installed area is high, the center position is low, and the artificial lens is pre-installed in the crystal optical zone pre-installed area through a smooth curved surface transition, the crystal body is supported by the edge of the crystal optical zone pre-installed area, so that the optical zone of the artificial lens is suspended in mid-air, a push pin lower guide groove is provided on the bottom side of the central axis of the crystal optical zone pre-installed area, lower snap-fit ​​grooves are provided on the left and right sides of the crystal optical zone pre-installed area, and the lower The snap-fitting groove is connected to the upper snap-fitting groove 1 by snap-fitting, and the lower snap-fitting buckle is connected to the upper snap-fitting groove 2 by snap-fitting, and the upper pre-installation chamber is fixedly connected to the lower pre-installation chamber by four snaps. A rear loop support surface is provided on the right rear side of the pre-installation area of ​​the optical zone of the lens, and the rear loop support surface is higher than the highest point of the optical zone after the artificial lens is placed, and the rear loop support surface gradually rises from the back to the front, and the rear support loop is placed on the rear loop support surface. During the push injection process, the push needle of the implanter first contacts the rear support loop, so that the rear support loop is pushed to the upper side of the lens body to ensure that the rear support loop is wrapped by the lens body. The left front side of the pre-installation area of ​​the optical zone of the lens is provided Anterior loop support surface, the anterior loop support surface is higher than the highest point of the optical zone after the artificial lens is placed, the anterior support loop is placed on the anterior loop support surface, and the anterior loop support surface has the function of blocking the anterior support loop, a clamping column is arranged on the left front side of the anterior loop support surface, the clamping column and the guide head clamping slot are limited, and the guide head lower clamping groove is arranged between the lens optical zone pre-installation area and the pre-installation chamber folding position, after the upper pre-installation chamber and the lower pre-installation chamber are folded, the guide head lower clamping groove and the guide head upper clamping groove form a complete clamping groove, which cooperates with the guide head clamping surface to limit the forward and backward movement of the guide head and firmly fix the guide head in the pre-installation chamber. ; 2. The detachable preassembled intraocular lens implant system according to claim 1, characterized in that: A rotating handle is provided at the rear end of the push rod, and the rotating handle is in a plum blossom shape. A reducing zone is provided on the inner side of the rotating handle, which is formed equidistantly from the rotating handle. A forward stop surface is provided on the front side of the rotating handle, and a crystal folding and rotating pushing zone is provided at the front end of the forward stop surface. A rotating external thread is provided on the crystal folding and rotating pushing zone, and the rotating external thread is a double thread. An external thread stop point is provided on the front end face of the rotating external thread, and a crystal pre-loaded folding and straight line pushing zone is provided at the front end of the external thread stop point. A guide groove is provided at the front end of the crystal pre-loaded folding and straight line pushing zone, and a clamping groove is provided at the rear end of the guide groove. A retreat contact surface is provided on the front end face of the clamping groove, and a forward contact surface is provided on the rear end face of the clamping groove.

3. The detachable preassembled intraocular lens implant system according to claim 2, characterized in that: The front end of the push pin is provided with a lens push head, which is a bifurcated type. During the push process, the push head first contacts the rear support loop, so that the rear support loop is pushed to the upper side of the lens body to ensure that the rear support loop is wrapped by the lens body. The push head is guided by the push pin upper guide groove and the push pin lower guide groove. During the push process, the crystal push head pushes the lens body and the rear support loop to start moving forward, but the front support loop is blocked by the front loop support surface and cannot move. When the front support loop is above the lens body, the front support loop has no The method can withstand the push injection force, so that the front support haptic is forced to deform, ensuring that the front support haptic is wrapped by the lens body. At this time, the lens body, the front support haptic and the rear support haptic move simultaneously to push the artificial lens out of the inner cavity of the introduction head, so as to implant the artificial lens into the human eye. Anti-pinching haptic grooves are provided on both sides of the rear end of the lens push injection head, and a buckle 1 is provided at the rear end of the push needle. When the push rod cooperates with the push needle, the buckle 1 penetrates into the guide groove, and a buckle 1 deformation groove is provided on the inner side of the buckle 1. The buckle 1 deforms in the direction of the buckle 1 deformation groove. The buckle 1 is a solid type with a boss bevel, and the front end of the buckle 1 is large and the rear end is small. The guide groove is a hollow type with a boss bevel, and the front end is large and the rear end is small. The front end of the guide groove is larger than the front end of the buckle 1. After inserting into the guide groove, the buckle 1 rotates freely in the engaging groove, and the rear end of the guide groove is smaller than the rear end of the buckle 1. The rear end of the buckle 1 is provided with a forward contact surface 2. When the implanter is pushed, the forward contact surface 2 contacts the forward contact surface 1 to stop, and the push rod drives the push needle to move forward. The front end of the buckle 1 is provided with a backward contact surface 2. When the implanter is withdrawn, the backward contact surface 2 contacts the backward contact surface 1 to stop, and the push rod drives the push needle to move backward. The front end of the buckle 1 is provided with a rotating shaft, and the rotating shaft rotates freely in the guide groove. The length of the rotating shaft is greater than that of the buckle 1. A limiting guide slider is provided on one side of the periphery of the rotating shaft, and initial limiting grooves are provided on both sides of the limiting guide slider. A limiting guide slider deformation groove is provided in the middle of the limiting guide slider, and a backward stop surface 1 is provided on the rear end surface of the limiting guide slider.

4. The detachable preassembled intraocular lens implant system according to claim 3, characterized in that: Two damping ring grooves are arranged side by side at the front end of the rotating shaft, and damping rings are respectively installed on the two damping ring grooves. The damping rings are made of soft silicone material, and an anti-rotation groove II is arranged on one side of the periphery of the damping ring groove. A forward stop inclined plane II is arranged at the front end of the damping ring groove, and a limiting column section is arranged between the forward stop inclined plane II and the anti-pinching loop groove.

5. The detachable preassembled intraocular lens implantation system according to claim 4, characterized in that: The front end of the sleeve is provided with an avoidance groove for avoiding the introduction head, and both sides of the rear end of the avoidance groove are provided with pre-installed bin buckles 1, and the pre-installed bin buckle 1 is connected and cooperated with the sleeve hook to limit the left and right movement of the detachable introduction head assembly, and the central part of the pre-installed bin buckle 1 is provided with a push pin guide groove, and the push pin guide groove and the limit column cross-section are both convex cross-sections, and the single-side matching clearance between the push pin guide groove and the limit column cross-section is 0.05-0.1mm, and the left and right sides of the pre-installed bin buckle 1 are provided with pre-installed bin buckle 2, and the pre-installed bin buckle 2 is connected with the sleeve slot buckle, and the front end of the avoidance groove is provided with an introduction head slot 1, and the center of the introduction head slot 1 is on the central axis of the implanter, and the introduction head slot 1 is connected with the introduction head engaging surface buckle, and the sleeve tail end is provided with a beautiful seam surface, and the outer side of the front end of the beautiful seam surface is provided with a matching indicator groove 1, and the matching indicator groove 1 is symmetrically provided with card A locking cap slot, a push rod movement cavity is provided on the central axis at the rear end of the sleeve, the push rod movement cavity is injection molded and has a draft angle, an anti-sway surface is provided on the inner side of the front end of the beautiful seam surface, and a locking cap stop surface is provided on the front end surface of the anti-sway surface, and a guide surface is provided between the locking cap stop surface and the inner side of the locking cap slot, a forward stop inclined surface is provided at the front end of the push rod movement cavity, and when the push needle is pushed to the front end, the forward stop inclined surface limits the forward stop inclined surface from moving forward, an anti-rotation groove is provided on one side of the push rod movement cavity, the anti-rotation groove cooperates with the anti-rotation groove, an anti-skid groove is provided at the front end of the outer side of the anti-rotation groove, the anti-skid groove is convex or concave, and an anti-skid groove is provided at the rear end of the anti-skid groove, the anti-skid groove is convex or concave, the anti-skid groove is inclined at 45° and 135° and arranged crosswise, and a reinforcing rib is provided on the lower side of the avoidance groove.

6. The detachable preassembled intraocular lens implantation system according to claim 5, characterized in that: The rear end of the locking cap is provided with an anti-pinch column, and when the push rod is pushed to the front end, a gap is formed between the forward stop surface 1 and the locking cap to prevent the operator's gloves from being pinched or the hands from being pinched, and the top surface of the anti-pinch column is provided with an forward stop surface 2. When the push rod is pushed to the front end, the forward stop surface 2 and the forward stop surface 1 form a small gap to cooperate. When the forward stop inclined surface 1 and the forward stop inclined surface 2 fail to limit, the forward stop surface 2 contacts the forward stop surface 1 and limits the forward stop surface 1. The forward stop surface 2 is limited and the forward stop surface 1 continues to move forward. The inner side of the locking cap is provided with a rotating internal thread, and the rotating internal thread is fitted and connected with the rotating external thread. The push rod advances and retreats in the rotating internal thread spiral. The rotating internal thread is a double thread. The rear end face of the rotating internal thread is provided with an internal thread stop point. When the linear push of the crystal pre-loaded folded linear push injection area is completed, the crystal pre-loaded folded linear push injection area contacts and stops with the external thread stop point through the internal thread stop point. The front end of the anti-pinch column is provided with a second matching indicator groove. The front end of the second matching indicator groove is provided with a beauty seam ball. The beauty seam ball cooperates with the beauty seam surface to form a uniform gap around it, and the gap is 0.2-0.4mm. The front end of the beauty seam ball is provided with an anti-sway surface two. The anti-sway surface two cooperates with the anti-sway surface one gap, and the cooperation gap is 0.05-0.1mm. The front end of the anti-sway surface two is provided with a snap-fit ​​cap limiting surface. The snap-fit ​​cap limiting surface cooperates with the snap-fit ​​cap stopping surface to limit the forward movement of the snap-fit ​​cap. The front end of the snap-fit ​​cap limiting surface is provided with A supporting surface, one side of which is provided with an anti-rotation groove three, which cooperates with the anti-rotation groove one, and a plurality of limit posts are evenly distributed on the supporting surface, and the limit posts cooperate with the push rod movement cavity to limit the left and right movement of the locking cap in the sleeve, and buckles are provided on the two sides of the supporting surface parallel to the limit posts, and the buckle two cooperates with the locking cap slot to limit the backward movement of the locking cap, and before the buckle two cooperates with the locking cap slot, the guide surface is an inclined surface, which is small when close to the locking cap slot and large when away from the locking cap slot, and the rear side of the anti-rotation groove three is symmetrically provided with limit guide grooves, and initial limit posts are provided on both sides of the limit guide grooves. When the implanter is in the initial state, the initial limit posts engage with the initial limit grooves to limit the position, and the initial limit When the engagement between the column and the initial limit groove begins, the initial limit groove deforms toward the deformation groove of the limit guide slider. After the initial limit column and the initial limit groove are engaged, the initial limit groove rebounds through the elastic deformation principle of the plastic part, thereby achieving engagement. The rear end of the limit guide groove is provided with a second rear stop surface. When the push rod is pushed to the rearmost end, the second rear stop surface and the first rear stop surface form a small gap. When the engagement between the initial limit column and the initial limit groove fails to limit, the second rear stop surface and the first rear stop surface contact and limit, and the second rear stop surface restricts the first rear stop surface from continuing to retreat. The limit formed by the initial limit column and the initial limit groove and the internal thread stop point constitute a crystal folding and rotational injection area to achieve rotational injection.

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