Intraocular lens implantation system

Abstract

The utility model discloses an intraocular lens implanting system which comprises a cylinder body, a lens body and a lens body, the guide-in head is arranged at an opening in one end, far away from the push-injection rod, of the cylinder body, and a guide-in channel is formed in the guide-in head; the leading-in channel is a cavity composed of a first cavity and a second cavity which are asymmetrical, and the first cavity is provided with at least one ridge-shaped protrusion which is used for extruding the anterior loop of the intraocular lens and faces the interior of the cavity. And the cross sectional areas of the first cavity and the second cavity are reduced along the axial direction of the cavity of the lead-in channel from the inlet end to the outlet end of the lead-in head. According to the intraocular lens implantation system, the first cavity is provided with the ridge-shaped protrusion, so that when the intraocular lens is guided in, the intraocular lens gradually moves towards the outlet end of the guiding-in channel, the ridge-shaped protrusion slowly and gradually extrudes the front loop, the front loop is forced to be folded backwards, and the problem that the front loop is straight is solved; the operation is simple and efficient; and the implantation stability and safety are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary medical equipment, and more specifically, to an artificial lens implantation system. Background Art

[0002] An artificial lens is a medical device that can be implanted into the patient's eye to replace the diseased natural lens. It is currently the most effective and direct means of correcting aphakic refraction. It requires the help of an implant system to push it into the human eye. The scope of application of the artificial lens implant system product is used for eye lens replacement in eye surgeries for ophthalmic diseases such as cataracts.

[0003] When implanting an intraocular lens with a push-in or screw-in intraocular lens implantation system, it is necessary to combine the component that holds the intraocular lens with the propulsion component of the intraocular lens implantation system, and then push the intraocular lens into the human eye through the propulsion component. However, since the intraocular lens itself is relatively soft, the position of the intraocular lens is prone to change forward and backward during transportation, which requires manual correction of the lens position, which is quite troublesome; at the same time, when the propulsion component pushes the intraocular lens, the lens often flips, the anterior loop comes out directly, and the posterior loop of the lens and the optical zone are over-folded during the push-in process, resulting in loop clamping and reverse loops, which results in the intraocular lens being unable to be pushed into the human eye with a double loop holding and covering the optical zone of the lens, resulting in a large injection incision and unsuccessful surgery.

[0004] The Chinese utility model patent with the prior art announcement number CN212662028U discloses an intraocular lens pusher, wherein the barrel can be installed in cooperation with an intraocular lens storage box pre-installed with an intraocular lens, and the box cavity is located inside the barrel, and a box cavity opening is formed at the bottom of the barrel; a pressing block opening is provided at a position just above the box cavity opening in the barrel, so that the flipped pressing block can enter the interior of the box cavity through the pressing block opening, and then contact the intraocular lens and press it down to a concave state in the middle. Although the pressing block can fix the lens to a certain extent, since the lens is a relatively soft elastic material component, it is easy to be damaged under the simultaneous compression and pushing action, and it is impossible to avoid the phenomenon of the anterior loop coming out directly, and the excessive folding of the posterior loop of the lens and the optical zone during the pushing process, resulting in the clamping loop and the reverse loop. Based on this, it is necessary to develop an artificial lens implantation system that can maintain the artificial lens implanted with double loops and cover the optical zone of the lens without risk of damage to the artificial lens, and is not prone to flipping, thereby ensuring the safety and stability of the lens implantation surgery. Utility Model Content

[0005] In view of the above-mentioned deficiencies in the prior art, the utility model provides an artificial lens implantation system, which can maintain the artificial lens implanted with double loops and cover the optical zone of the lens without causing risk of damage to the artificial lens, and is not prone to flipping, thereby ensuring the safety and stability of the artificial lens implantation surgery and the transportation stability of the preinstalled artificial lens implantation system.

[0006] In order to achieve the above utility model purpose, the technical solution adopted by the utility model is:

[0007] An intraocular lens implantation system, comprising:

[0008] A cylinder having a cavity with openings at both ends;

[0009] An injection rod, one end of which extends into the cavity along an opening at one end of the barrel, and extends along the cavity toward an opening at the other end of the barrel;

[0010] An introduction head, the introduction head is arranged at an opening of one end of the barrel away from the injection rod, and an introduction channel is arranged in the introduction head;

[0011] One end of the push rod extends into the cavity, and enters the entrance of the introduction channel of the introduction head along the cavity, and abuts against the artificial lens located in the introduction channel, so as to push the artificial lens into the eye along the introduction channel;

[0012] The introduction channel is a cavity composed of two asymmetric first cavities and a second cavity, the first cavity has at least one ridge-like protrusion facing the inside of the cavity for squeezing the front haptic of the artificial lens; the first cavity and the second cavity decrease along the axial cross-sectional area of ​​the introduction channel cavity from the inlet end to the outlet end of the introduction head.

[0013] The introduction channel of the artificial lens implantation system provided by the utility model is a cavity composed of two asymmetric first cavities and a second cavity, wherein the first cavity has at least one ridge-like protrusion facing the inside of the cavity for squeezing the front loop of the artificial lens, and the first cavity and the second cavity are combined, and the axial cross-sectional area of ​​the introduction channel cavity is reduced from the inlet end to the outlet end of the introduction head. When the artificial lens is introduced, the artificial lens gradually moves toward the outlet end of the introduction channel, and the front loop is slowly and gradually squeezed by the ridge-like protrusion, so that it is "forced" to fold backwards, preventing the problem of the front loop having a straight loop.

[0014] Furthermore, one end of the push rod extending toward the opening at the other end of the barrel is a slot structure capable of enclosing the posterior haptic of the artificial lens, and the slot structure includes a first protrusion and a second protrusion arranged opposite to each other, and the first protrusion is taller than the second protrusion.

[0015] Furthermore, the height of the first protrusion is 0.20-1.00 mm; the height of the second protrusion is 0.10-0.60 mm, and the distance between the first protrusion and the second protrusion is 0.5-2.0 mm.

[0016] Furthermore, one end of the push rod extending to the opening at the other end of the barrel is a groove structure with an opening at one end that can enclose the posterior loop of the artificial lens, and the groove structure includes a fourth protrusion and a fifth protrusion that are relatively arranged, and the height of the fifth protrusion is longer than the fourth protrusion; the third protrusion is connected between the fourth protrusion and the fifth protrusion, and the fourth protrusion, the fifth protrusion and the third protrusion enclose a groove with a side opening.

[0017] Preferably, the fourth protrusion is stepped.

[0018] Furthermore, the height of the fourth protrusion on the upper part of the groove structure with one end open is 0.2-1.0mm; the height of the lower protrusion is 0.5-2.0mm; and the distance between the fourth protrusion and the fifth protrusion is 0.1-0.5mm.

[0019] Preferably, the height of the third protrusion is lower than the height of the fifth protrusion.

[0020] In the slot structure with one end open, the fifth protrusion is longer than the fourth protrusion, and the fourth protrusion is of stepped design, which can ensure that the posterior loop of the artificial lens can be curled onto the optical zone to avoid crossing the optical zone.

[0021] The height of the fifth protrusion is 0.5-2.0mm, in order to allow the posterior loop to be curled up and placed in the push injection process, so as to prevent the posterior loop and the optical zone from being over-folded, resulting in problems such as loop clamping and reverse loop. Since the groove structure with one end open is more suitable for the "reverse S" shape of the intraocular lens, it has better stability than the full groove.

[0022] Furthermore, a lens placement plate for placing an artificial lens is provided between the introduction head and the cavity, and a crystal positioning platform and a viscoelastic channel for positioning the artificial lens are provided on the lens placement plate.

[0023] Preferably, a positioning plate movably connected to the upper portion of the lens placement plate is correspondingly provided, and the positioning plate is detachably covered on the upper portion of the lens placement plate to form a space together with the lens placement plate for allowing the artificial lens to pass through.

[0024] Preferably, a viscoelastic agent injection port is provided on the positioning plate, and the viscoelastic agent injection port is arranged opposite to the viscoelastic agent channel.

[0025] Preferably, a lens direction marking portion for reminding the placement direction of the artificial lens is provided on the outer wall of the introduction head.

[0026] Furthermore, the artificial lens implantation system also includes a rotating member, which is arranged between the cylinder and the push rod. One end of the push rod extends into the cavity along the rotating member. Driven by the rotating member, the push rod moves up and down relative to the cavity.

[0027] Furthermore, the rotating member is a sleeve with openings at both ends, the outer wall surface of the push rod is threadedly connected to the sleeve, and the push rod passes through the sleeve and enters into the cavity of the cylinder.

[0028] Furthermore, at least one boss is provided on the inner circumferential wall of the sleeve at one end away from the introduction head, at least one boss is provided with thread teeth, and the outer wall surface of the injection rod is provided with a thread groove adapted to the thread teeth.

[0029] Preferably, the inner wall surface of the sleeve is rotatably connected to the outer wall surface of the cylinder.

[0030] Furthermore, the cylinder and the rotating member are rotatably connected via a limiting component, the limiting component includes a limiting groove and at least one limiting portion, the limiting groove is opened on the outer circumference of the cylinder, and any one of the limiting portions is arranged on the inner circumference of the rotating member, after the rotating member is installed on the cylinder, the limiting portion is located in the limiting groove, and the limiting portion can rotate along the outer circumference of the cylinder in the limiting groove, so that the rotating member can rotate relative to the cylinder.

[0031] Furthermore, the depth of the limiting groove is greater than the height of any limiting portion, and / or the length of the limiting groove is equal to the axial length of any limiting portion, so as to limit the axial movement of the limiting portion relative to the axial direction of the cylinder.

[0032] Furthermore, a sealing ring is sleeved on the injection rod, and the sealing ring is in sealing contact with the inner wall surface of the cavity.

[0033] The beneficial effects of the utility model are as follows: the artificial lens implantation system provided by the utility model can prevent the anterior loop of the artificial lens from coming out straight when it is pushed out, and the posterior loop of the artificial lens and the optical zone from being over-folded during the injection process, resulting in the phenomenon of loop clamping and reverse loop. At the same time, the displacement of the injection rod during transportation is limited, the deformation of the artificial lens is avoided, and the position stability of the artificial lens is guaranteed. The operation is simple and efficient, and the doctor's surgical operation experience and the patient's surgical safety are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the overall structure of the implantation system of the utility model.

[0035] Figure 2It is a cross-sectional view of the AA portion of the implant system of the present invention.

[0036] Figure 3 for Figure 1 Schematic diagram of the connection structure between the rotating member and the cylinder shown.

[0037] Figure 4 This is a schematic diagram of the structure of the rotating part of the novel implant system.

[0038] Figure 5 This is a schematic diagram of the top view of the rotating part of the novel implant system.

[0039] Figure 6 for Figure 3 A schematic cross-sectional structure diagram of the rotating part of the novel implant system is shown.

[0040] Figure 7 This is a schematic structural diagram of the first push rod of the implant system of the utility model from one perspective.

[0041] Figure 8 This is a partial enlarged view of the first push rod of the utility model implant system.

[0042] Fig. 9 This is a structural schematic diagram of a second injection rod of the implant system of the utility model from one viewing angle.

[0043] Fig.10 This is a partial enlarged view of the second push rod of the implant system of the utility model.

[0044] Fig.11 Schematic diagram of the structure of the introduction head in this embodiment.

[0045] Fig.12 It is an axial cross-sectional view of the introduction head along the introduction channel.

[0046] Fig.13 It is a radial cross-sectional view of the introduction head along the introduction channel.

[0047] Fig.14 It is a schematic diagram of the introduction channel and artificial lens implantation in this embodiment.

[0048] Explanation of the reference numerals: 1 is a cylinder; 2 is an injection rod; 3 is a rotating part; 4 is an introduction head; 5 is a boss; 6 is a threaded tooth; 7 is a threaded groove; 8 is a limiting groove; 9 is a limiting part; 10 is a cavity; 11 is a sealing ring; 12 is a sealing groove; 13 is a mounting buckle; 14 is an introduction channel; 15 is a first cavity; 16 is a second cavity; 17 is a ridge-like protrusion; 18 is a groove structure; 19 is a first protrusion; 20 is a second protrusion; 21 is a third protrusion; 22 is a crystal placement plate; 23 is a crystal positioning platform; 24 is a crystal direction identification part; 25 is a viscoelastic agent channel; 26 is a positioning plate; 27 is a viscoelastic agent injection port; 28 is an artificial lens; 29 is a fourth protrusion; 30 is a fifth protrusion. DETAILED DESCRIPTION

[0049] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings. The same parts are represented by the same figure numerals. It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to the directions in the accompanying drawings, and the words "inside" and "outside" refer to the directions toward or away from the geometric center of a specific component, respectively. In order to make the content of the utility model easier to understand, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model.

[0050] Example 1

[0051] The utility model provides an artificial lens implantation system, such as Figure 1-2 and Figure 11-14 As shown, it comprises: a barrel 1, the barrel 1 having a cavity 10 with openings at both ends; an injection rod 2, one end of the injection rod 2 extends into the cavity 10 along the opening at one end of the barrel 1, and extends along the cavity 10 to the opening at the other end of the barrel 1; an introduction head 4, the introduction head 4 is arranged at the opening at one end of the barrel 1 away from the injection rod 2, and a mounting buckle 13 is provided at the lower part of the introduction head 4 to facilitate the disassembly of the introduction head 4; an introduction channel 14 is provided in the introduction head 4; one end of the injection rod 2 extends into the cavity 10, and enters the inlet of the introduction channel 14 of the introduction head 4 along the cavity 10, and abuts against the artificial lens located in the introduction channel 14, so as to push the artificial lens into the eye along the introduction channel 14;

[0052] The introduction channel 14 is a cavity composed of two asymmetric first cavities 15 and second cavities 16. The first cavity 15 has at least one ridge-like protrusion 17 facing the inside of the cavity for squeezing the anterior haptic of the artificial lens 28, and the present embodiment preferably has one ridge-like protrusion. The first cavity 15 and the second cavity 16 decrease along the axial cross-sectional area of ​​the introduction channel 14 cavity from the inlet end to the outlet end of the introduction head 4.

[0053] As an optional solution, a lens placement plate 22 for placing an artificial lens 28 is provided between the introduction head 4 and the cavity 10 , and a crystal positioning platform 23 and a viscoelastic channel 25 for positioning the artificial lens 28 are provided on the lens placement plate 22 .

[0054] As an optional solution, a positioning plate 26 movably connected to the upper portion of the crystal placement plate 22 is correspondingly provided. The positioning plate 26 is detachably covered on the upper portion of the crystal placement plate 22 to form a space together with the crystal placement plate 22 to allow the artificial lens 28 to pass horizontally.

[0055] As an optional solution, a viscoelastic agent injection port 27 is provided on the positioning plate 26 , and the viscoelastic agent injection port 27 is arranged opposite to the viscoelastic agent channel 25 .

[0056] Preferably, a lens direction marking portion 24 for reminding the placement direction of the artificial lens 28 is provided on the outer wall of the introduction head 4 .

[0057] In the specific implementation process, the positioning plate 26 is opened, the intraocular lens 28 is placed on the lens placement plate 22 according to the position of the crystal positioning platform 23 and the crystal direction marking part 24, the correct placement direction of the intraocular lens 28 is adjusted, and then the positioning plate 26 is closed, and the viscoelastic agent is injected into the viscoelastic agent channel 25 from the viscoelastic agent injection port 27 of the positioning plate 26, and the bottom of the intraocular lens 28 contacts the viscoelastic agent in the viscoelastic agent channel 25. At this time, the push rod 2 is started to move along the cavity 10 toward the barrel 1 until it contacts the intraocular lens 28, and pushes the intraocular lens 28 to move toward the introduction channel 14 in the introduction head 4. At this time, the front haptic is squeezed by the ridge-like protrusion 17 through the cavity composed of the first cavity 15 and the second cavity 16, and folded to avoid the problem of straight haptic.

[0058] The introduction channel 14 of the artificial lens implantation system provided by the utility model is a cavity composed of two asymmetric first cavities 15 and second cavities 16. The two sides of the cavity in the introduction head 4 of the implantation system are asymmetric, which can guide the anterior haptic feet of the artificial lens 28 to fold correctly and reduce the probability of straight haptics. The first cavity 15 has at least one ridge-like protrusion 17 for squeezing the anterior haptic of the artificial lens 28 and facing the inside of the cavity, and due to the combination of the first cavity 15 and the second cavity 16 from the inlet end to the outlet end of the introduction head 4, the axial cross-sectional area of ​​the cavity along the introduction channel 14 decreases. When the artificial lens 28 is introduced, the artificial lens 28 gradually moves toward the exit end of the introduction channel 14, and is gradually and slowly squeezed by the ridge-shaped protrusion 17, so that the anterior loop is "forced" to fold backward, that is, when the artificial lens 28 in an inverted S shape enters the cavity, the anterior loop can be optically folded by this structural design to prevent the problem of a straight loop in the anterior loop. The artificial lens implantation system can avoid the phenomenon of the anterior loop coming out straight when the artificial lens is pushed out, and the excessive folding of the posterior loop of the artificial lens 28 and the optical zone during the injection process, resulting in the phenomenon of a clamped loop and a reversed loop.

[0059] Example 2

[0060] In order to further realize the integration of rotation and pushing of the pre-installed intraocular lens implant system, based on Example 1, as an optional solution, Figure 3-Figure 6 As shown, the intraocular lens implantation system further includes a rotating member 3, which is disposed between the barrel 1 and the push rod 2. One end of the push rod 2 extends into the cavity 10 along the rotating member 3. Driven by the rotating member 3, the push rod 2 moves up and down relative to the cavity 10. The rotating member 3 is a sleeve with openings at both ends. The outer wall surface of the push rod 2 is threadedly connected to the sleeve, and the push rod 2 passes through the sleeve and enters the cavity 10 of the barrel 1.

[0061] Reference Figure 2-5 As an optional solution, at least one boss 5 is provided on the inner circumferential wall of the end of the sleeve away from the introduction head 4, at least one of the bosses 5 is provided with thread teeth 6, and the outer wall surface of the injection rod 2 is provided with a thread groove 7 adapted to the thread teeth 6. According to actual needs, 2 or 4 bosses 5 can also be provided, and each boss 5 is provided with thread teeth 6. As an optional solution, the inner wall surface of the sleeve is rotatably connected to the outer wall surface of the cylinder 1.

[0062] As an optional solution, the cylinder 1 and the rotating member 3 are rotationally connected through a limiting component, and the limiting component includes a limiting groove 8 and at least one limiting portion 9, the limiting groove 8 is opened on the outer peripheral surface of the cylinder 1, and any of the limiting portions 9 is arranged on the inner peripheral surface of the rotating member 3. After the rotating member 3 is installed on the cylinder 1, the limiting portion 9 is located in the limiting groove 8, and the limiting portion 9 can rotate along the outer peripheral surface of the cylinder 1 in the limiting groove 8, so that the rotating member 3 rotates relative to the cylinder 1. Preferably, the groove depth of the limiting groove 8 is greater than the height of any of the limiting portions 9. As an optional solution, the groove length of the limiting groove 8 is equal to the axial length of any of the limiting portions 9, so as to limit the axial movement of the limiting portion 9 relative to the axial direction of the cylinder 1. Preferably, the limiting portion 9 is arranged in a wedge block. The number of the limiting portions 9 can be set to one, and of course it can also be set to two or four.

[0063] To increase the sealing of the implant system, refer to Figure 1 As an optional solution, a sealing ring 11 is also sleeved on the push rod 2, and the sealing ring 11 is in sealing contact with the inner wall surface of the cavity 10. Preferably, the sealing ring 11 is an O-ring. Preferably, a sealing groove 12 for installing the sealing ring 11 is provided on the push rod 2.

[0064] In the specific implementation process, when the rotating block 3 is operated to rotate relative to the outer circumference of the barrel 1, due to the threaded connection between the sleeve and the injection rod 2, the torque of the sleeve can be converted into an axial repetitive force and act on the injection rod 2, so that the injection rod 2 can perform axial lifting and lowering movements along the cavity 10 of the barrel 1. When the injection rod 2 moves downward along the axial direction of the cavity 10, the artificial lens can be pushed out of the introduction head 4. When the rotating block 3 needs to rotate, the limiting part 9 can rotate along the outer peripheral surface of the barrel 1 in the limiting groove 8, so that the rotating block 3 rotates relative to the barrel 1. In order to prevent the rotating block 3 from escaping from the limiting groove 8, the depth of the limiting groove 8 can be greater than the height of any limiting part 9, so that the rotating block 3 will not escape from the limiting groove 8 when rotating relative to the barrel 1. Of course, the length of the limiting groove 8 can also be set equal to the axial length of any limiting part 9, so that the two end walls of the limiting part 9 abut against the wall surfaces of the two ends of the limiting groove 8, and can rotate along the limiting groove 8. In addition, the limiting part 9 can be limited to move axially relative to the axial direction of the barrel 1, and the limiting part 9 will not escape from the limiting groove 8. The torque of the sleeve is converted into the axial repeated force of the injection rod 2, so that the artificial lens can be implanted slowly and accurately, with less damage to the eye.

[0065] Example 3

[0066] In order to keep the artificial lens in a double-loop embracing position covering the optical zone when it moves along the introduction channel 14 and prevent the front loop from coming out directly, based on the first or second embodiment, Figure 7-8 As an optional solution, one end of the push rod 2 extending toward the other end opening of the barrel 1 is a groove structure 18 that can enclose the posterior haptic of the intraocular lens, and the groove structure 18 includes a first protrusion 19 and a second protrusion 20 that are arranged opposite to each other, and the first protrusion 19 is greater in height than the second protrusion 20. Preferably, the height of the first protrusion 19 is 0.20-1.00 mm; the height of the second protrusion 20 is 0.10-0.60 mm, and the distance between the first protrusion 19 and the second protrusion 20 is 0.5-2.0 mm.

[0067] In the specific implementation process, when the injection rod 2 is injecting the artificial lens 28, since the height of the first protrusion 19 is greater than that of the second protrusion 20, the side of the injection rod 2 is shorter at the top and longer at the bottom, and the first protrusion 19 is located at the bottom and protrudes longer, which can ensure that the posterior loop of the artificial lens 28 can be curled onto the optical zone to avoid crossing the optical zone.

[0068] Example 4

[0069] In order to keep the artificial lens in a posture of covering the optical zone with double loops when it moves along the introduction channel 14, and to prevent the front loop from coming out directly, to have a placement space during the push injection process, and to prevent the rear loop from being excessively folded with the optical zone to cause the loop to be clamped or reversed, on the basis of Example 1 or Example 2, Figure 9-10 As an optional solution, the end of the push rod 2 extending toward the other end opening of the barrel 1 is a groove structure 18 with one end opening that can enclose the posterior haptic of the intraocular lens, and the groove structure 18 includes a fourth protrusion 29 and a fifth protrusion 30 that are arranged opposite to each other, and the height of the fifth protrusion 30 is greater than that of the fourth protrusion 29; the third protrusion 21 is connected between the fourth protrusion 29 and the fifth protrusion 30, and the fourth protrusion 29, the fifth protrusion 30 and the third protrusion 21 enclose a groove with a side opening. Preferably, the fourth protrusion 29 is stepped.

[0070] As an optional solution, the height of the fourth protrusion 29 on the upper part of the slot structure 18 with one end open is 0.2-1.0 mm; the height of the fifth protrusion 30 is 0.5-2.0 mm; the distance between the fourth protrusion 29 and the fifth protrusion 30 is 0.1-0.5 mm. Preferably, the height of the third protrusion 21 is lower than the height of the fifth protrusion 30.

[0071] In the specific implementation process, the fifth protrusion 30 of the groove structure 18 with an opening at one end is longer than the fourth protrusion 29, and the fourth protrusion 29 is a stepped design, which can ensure that during the injection process of the artificial lens 28, the posterior loop of the artificial lens 28 can be curled onto the optical zone to avoid crossing the optical zone. At the same time, since the height of the fifth protrusion 30 is 0.5-2.0mm, after the posterior loop is curled, there is a placement space during the injection process to prevent the posterior loop and the optical zone from being excessively folded, resulting in a clamped loop or a reverse loop. Since the artificial lens 28 is in the shape of an "inverted S", the groove structure 18 with an opening at one end has a better fixation effect on the posterior loop, and has better stability than a general groove without an opening.

[0072] The above description is only a preferred embodiment of the present utility model patent and does not constitute a limitation of the present utility model patent. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model patent shall be included in the protection scope of the present utility model patent.

Claims

1. An artificial lens implant system, characterized in that: include: A cylinder (1), wherein the cylinder (1) has a cavity (10) with openings at both ends; an injection rod (2), one end of the injection rod (2) extending into the cavity (10) along an opening at one end of the barrel (1), and extending along the cavity (10) toward an opening at the other end of the barrel (1); An introduction head (4), the introduction head (4) being arranged at an opening at one end of the barrel (1) away from the injection rod (2), and an introduction channel (14) being arranged in the introduction head (4); One end of the injection rod (2) extends into the cavity (10), and enters the inlet of the introduction channel (14) of the introduction head (4) along the cavity (10), and abuts against the artificial lens located in the introduction channel (14), so as to push the artificial lens into the eye along the introduction channel (14); The introduction channel (14) is a cavity composed of two asymmetric first cavities (15) and a second cavity (16); the first cavity (15) has at least one ridge-like protrusion (17) facing the interior of the cavity and used for squeezing the front loop of the artificial lens (28); and the first cavity (15) and the second cavity (16) decrease in axial cross-sectional area along the cavity of the introduction channel (14) from the inlet end to the outlet end of the introduction head (4).

2. The intraocular lens implant system according to claim 1, characterized in that: One end of the injection rod (2) extending toward the opening at the other end of the barrel (1) is a groove structure (18) capable of enclosing the posterior haptic of an artificial lens, the groove structure (18) comprising a first protrusion (19) and a second protrusion (20) arranged opposite to each other, the first protrusion (19) having a greater height than the second protrusion (20).

3. The intraocular lens implant system according to claim 2, characterized in that: The height of the first protrusion (19) is 0.20-1.00 mm; the height of the second protrusion (20) is 0.10-0.60 mm, and the distance between the first protrusion (19) and the second protrusion (20) is 0.5-2.0 mm.

4. The intraocular lens implant system according to claim 1, characterized in that: One end of the push rod (2) extending toward the opening at the other end of the barrel (1) is a groove structure (18) with an opening at one end capable of enclosing the posterior loop of an artificial lens, the groove structure (18) comprising a fourth protrusion (29) and a fifth protrusion (30) arranged opposite to each other, the fifth protrusion (30) being higher than the fourth protrusion (29); a third protrusion (21) is connected between the fourth protrusion (29) and the fifth protrusion (30), and the fourth protrusion (29), the fifth protrusion (30) and the third protrusion (21) enclose a groove with a side opening.

5. The intraocular lens implant system according to claim 4, characterized in that: The fourth protrusion (29) on the upper part of the groove structure (18) with one end open has a height of 0.2-1.0 mm; the fifth protrusion (30) has a height of 0.5-2.0 mm; and the distance between the fourth protrusion (29) and the fifth protrusion (30) is 0.1-0.5 mm.

6. The intraocular lens implant system according to claim 1, characterized in that: A lens placement plate (22) for placing an artificial lens (28) is provided between the introduction head (4) and the cavity (10), and a crystal positioning platform (23) and a viscoelastic agent channel (25) for positioning the artificial lens (28) are provided on the lens placement plate (22).

7. The intraocular lens implant system according to claim 1, characterized in that: The invention comprises a rotating member (3), wherein the rotating member (3) is arranged between the barrel (1) and the injection rod (2), one end of the injection rod (2) extends into the cavity (10) along the rotating member (3), and driven by the rotating member (3), the injection rod (2) moves up and down relative to the cavity (10).

8. The intraocular lens implant system according to claim 7, characterized in that: The rotating member (3) is a sleeve with openings at both ends, the outer wall surface of the injection rod (2) is threadedly connected to the sleeve, and the injection rod (2) passes through the sleeve and enters the cavity (10) of the barrel (1).

9. The intraocular lens implant system according to claim 8, characterized in that: At least one boss (5) is provided on the inner peripheral wall of the end of the sleeve away from the introduction head (4), at least one of the bosses (5) is provided with thread teeth (6), and the outer wall surface of the injection rod (2) is provided with a thread groove (7) adapted to the thread teeth (6).

10. The intraocular lens implant system according to claim 8, characterized in that: The cylinder (1) and the rotating member (3) are rotatably connected via a limiting component, wherein the limiting component comprises a limiting groove (8) and at least one limiting portion (9), wherein the limiting groove (8) is formed on the outer peripheral surface of the cylinder (1), and any one of the limiting portions (9) is arranged on the inner peripheral surface of the rotating member (3). After the rotating member (3) is mounted on the cylinder (1), the limiting portion (9) is located in the limiting groove (8), and the limiting portion (9) can rotate in the limiting groove (8) along the outer peripheral surface of the cylinder (1), so that the rotating member (3) can rotate relative to the cylinder (1).

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