Capsule polisher used after cataract surgery

Abstract

The invention discloses a posterior capsule polisher for cataract surgery, and relates to the technical field of ophthalmologic surgical instruments, the polisher comprises a handle body, the front end of the handle body is provided with a polishing part for polishing a posterior capsule, and the front end of the handle body is fixedly connected with a light guide part; a light guide assembly is arranged between the outer side of the light guide part and the outer side of the handle body, and the light guide assembly achieves light guide and illumination for intraoperative operation by extruding a piezoelectric crystal arranged in the light guide assembly. According to the capsular membrane polisher used after the cataract operation, medical staff can extrude the liquid storage soft bag by pressing the elastic pressing piece, when the liquid storage soft bag is extruded and deformed greatly, much perfusate flows out, when the liquid storage soft bag is deformed slightly, little perfusate flows out, and when extrusion is not conducted, the perfusate flows out according to the set normal outflow amount; and the outflow amount of perfusate can be adjusted according to needs through the elastic pressing sheet, so that the perfusate can be better perfused into the eyes.

Description

Technical Field

[0001] The present invention relates to the technical field of ophthalmic surgical instruments, and particularly to a posterior capsule polisher after cataract surgery. Background Art

[0002] Cataract is an eye disease that causes vision loss due to lens opacity. Cataract surgery improves the patient's vision by removing the opaque lens and implanting a transparent intraocular lens. After cataract surgery, if lens cortical epithelial cells remain on the posterior capsule, these cells may continue to proliferate, leading to the occurrence of posterior capsular opacification.

[0003] To overcome the above defects, a posterior capsule polisher after cataract surgery in the prior art one (a Chinese patent with the publication number CN215020364U and the publication date of December 7, 2021) in the field of medical devices. The posterior capsule polisher after cataract surgery includes: a head and a handle. The head is connected to one end of the handle. The head includes a straight rod, an arc rod, and a polishing head connected in sequence. The straight rod is connected to the handle. The polishing head has threads and a liquid outlet. Through the combination of the threads and liquid flushing, the polishing head is used to polish the posterior capsule of cataract surgery patients. In this way, the combination of the threads and liquid flushing on the polishing head can very effectively clean the residual cortex on the surface of the posterior capsule, which is beneficial to improving the polishing effect and polishing efficiency.

[0004] There is also a prior art two (a Chinese patent with the publication number CN213372948U and the publication date of June 8, 2021) a double-headed capsule polisher, which includes a holding handle. Connecting rods are respectively provided at both ends of the holding handle. One end of the holding handle is connected to a large knife polishing head through a connecting rod, and the other end of the holding handle is connected to a circular polishing head through a connecting rod. The connection between the polishing head and the connecting rod is designed in an arc shape and polished to avoid damaging the capsule during polishing. The capsule in all directions can be polished. In the case of high-risk patients or patients with local calcification of the capsule, it plays a supplementary polishing role for the polishing of the large knife polishing head. The holding handle is designed in a round rod shape, and the holding feeling is better. When polishing, it is held between the fingers, and it is very easy to perform a twisting operation to polish the capsule by a rotating action. The double-headed capsule polisher can not only safely perform complete polishing of the anterior capsule, but also polish the posterior capsule and the equatorial capsule, and has a fast polishing speed and high efficiency.

[0005] Although the prior art can remove residual cells through a posterior capsule polisher and reduce the risk of posterior capsular opacification, during the polishing process, it is impossible to perform perfusion on the eye. During the polishing operation, the aqueous humor in the anterior chamber will be lost, and the depth and pressure of the anterior chamber will be unstable, thereby causing the polisher to impact the corneal endothelium, posing a risk of corneal endothelium injury.

[0006] Therefore, we propose a posterior capsule polisher after cataract surgery to facilitate the solution of the problems raised above. Summary of the Invention

[0007] The purpose of the present invention is to provide a posterior capsule polisher after cataract surgery to solve the problems in the above-mentioned background technology. During the polishing process in the current market, perfusion into the eye cannot be carried out. When polishing operations are performed, the aqueous humor in the anterior chamber will be lost, and the anterior chamber depth and pressure will be unstable, resulting in the polisher impacting the corneal endothelium, posing a risk of corneal endothelium damage.

[0008] To achieve the above purpose, the present invention provides the following technical solution: A posterior capsule polisher after cataract surgery, including a handle body. A grinding part for polishing the posterior capsule is provided at the front end of the handle body. A light guide part is fixedly connected to the front end of the handle body, and a light guide component is provided between the outer side of the light guide part and the outer side of the handle body. The light guide component realizes the light guide illumination for intraoperative operations through the extrusion operation of the piezoelectric crystal arranged inside it. A handle docking part is provided at the front end of the light guide part. A polishing docking part is provided at the end side of the grinding part, and an assembly mechanism for quickly disassembling and assembling the grinding part is provided between the polishing docking part and the handle docking part.

[0009] Preferably, a liquid supply hose for draining the perfusion liquid is penetrated through the inside of the handle body, and a liquid storage soft bag is penetrated and connected to the liquid supply hose. A liquid outlet hole for the perfusion liquid to flow out is opened on the grinding part.

[0010] Preferably, a movable groove is opened on the side of the handle body, and a moving plate is nested and connected inside the movable groove. An elastic pressing piece is fixedly connected between the rear end of the moving plate and the handle body. The elastic pressing piece is arranged in an arc structure and is symmetrically distributed about the center point of the liquid storage soft bag on the left and right.

[0011] Preferably, the light guide component includes a pressing ring, and the pressing ring is fixedly connected to the front end of the moving plate. A fixed ring is fixedly connected to the outer side of the light guide part. A docking groove is opened at the rear side of the fixed ring, and a piezoelectric crystal is fixedly connected inside the docking groove. An LED lamp is fixedly connected to the front side of the fixed ring, and the LED lamp is electrically connected to the piezoelectric crystal. A light source part is arranged outside the LED lamp.

[0012] Preferably, a light guide optical fiber is penetrated through the inside of the light guide part, and the end sides of the light guide optical fibers correspond to the positions of the light source parts one by one. The light guide part is made of a transparent material, and the light guide optical fibers are arranged in a circular array about the center point of the light guide part.

[0013] Preferably, the docking groove is adapted to the extrusion ring, and the extrusion ring forms a sliding structure with the docking groove through a movable plate, and the movable plate forms a sliding structure with the movable groove through an elastic pressing sheet.

[0014] Preferably, the assembly mechanism includes a resistance airbag, which is fixedly connected to the inner end side of the handle docking part, and the inner side of the handle docking part is fixedly connected to a fixed airbag, and a connecting tube is provided between the fixed airbag and the resistance airbag, the side of the fixed airbag is fitted with the outer side of the polishing docking part, and the polishing docking part is nested and docked inside the handle docking part.

[0015] Preferably, a sliding groove is provided at the center of the handle docking part, and a resistance plate is nested inside the sliding groove, and a connecting rod is fixedly connected to the end side of the resistance plate, a blocking plate is fixedly connected to the outer side of the connecting rod, and a reset plate is fixedly connected to the end side of the connecting rod, and a spring is fixedly connected between the inner side of the reset plate and the inner wall of the handle docking part.

[0016] Preferably, the diameter of the reset plate is larger than the diameter of the blocking plate, and the diameter of the blocking plate is larger than the maximum diameter of the internal through hole of the handle docking part. The resistance plate forms a sliding structure with the polished docking part and the slide groove, and the reset plate forms an elastic structure with the handle docking part through a spring.

[0017] Compared with the prior art, the present invention has the following beneficial effects: (1) When polishing the posterior capsule, the irrigation fluid can be discharged from the outlet hole on the outside of the polishing part through the guidance of the liquid storage capsule and the liquid supply hose. During the polishing of the posterior capsule, irrigation is carried out synchronously. The irrigation fluid can continuously replenish the aqueous humor lost due to surgical operation, maintain the stability of the anterior chamber depth and pressure, help reduce surgical complications, cushion the impact of the polisher on the corneal endothelium, and reduce the risk of corneal endothelial damage.

[0018] (2) Medical staff can squeeze the fluid storage capsule by pressing the elastic pressure piece. When the fluid storage capsule is squeezed and deformed greatly, more perfusion fluid flows out. When the fluid storage capsule is deformed slightly, less perfusion fluid flows out. When not squeezed, the perfusion fluid flows out according to the set normal outflow volume. The outflow volume of the perfusion fluid can be adjusted according to needs through the elastic pressure piece to better perfuse the eye.

[0019] (3) When a large amount of perfusion fluid is needed in the eye, the elastic pressure plate will undergo a large deformation at the same time. The elastic pressure plate will push the movable plate to move the extrusion ring at the same time, so that the fixed ring will squeeze the piezoelectric crystal set on the inner side of the docking groove. The piezoelectric effect of the piezoelectric crystal can make the LED lamp connected to it have voltage. At this time, the light source part of the LED lamp can light up. The light source part can be used to assist in lighting the polishing and perfusion of the eye, reducing the possibility of the injection of a large amount of perfusion fluid affecting the operating field of view.

[0020] (4) When the light source is lit, the light is emitted from the light source and enters the core layer of the light-guiding optical fiber. The light is constantly totally reflected inside the light-guiding optical fiber and is transmitted along the path of the light-guiding optical fiber. The highly efficient total reflection effect of the light-guiding optical fiber makes the loss of light in the transmission process very small, so that the light emitted by the light source can be transmitted to the entire light-guiding part, thereby expanding the propagation range of the light and reducing the interference of the light source on the operation.

[0021] (5) When the polishing docking part and the handle docking part are docked, the end side of the polishing docking part will squeeze and resist the airbag. At this time, the fixed airbag expands and fits with the outer side of the polishing docking part, thereby further improving the docking stability of the polishing docking part and the handle docking part. At the same time, when the polishing docking part is docked, the blocking plate does not block the channel. At this time, the perfusion fluid can enter the polishing part. When the polishing part is disassembled, the reset plate, with the assistance of the elastic force of the spring, blocks the channel with the blocking plate. While reducing the outflow of the perfusion fluid, it can also further reduce the possibility of bacteria entering the device through the channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the handle body of the present invention; Figure 3 It is a schematic diagram of a three-dimensional cross-sectional structure of the present invention; Figure 4 This is a schematic diagram of the three-dimensional cross-sectional structure of the handle docking portion of the present invention; Figure 5 For the present invention Figure 4 A in the middle is an enlarged structural diagram; Figure 6 This is a schematic diagram of the three-dimensional cross-sectional structure of the polishing docking portion of the present invention; Figure 7 For the present invention Figure 6 The enlarged structural diagram at B in the middle; Figure 8 This is a schematic diagram of the three-dimensional structure of the elastic pressed tablet of the present invention; Figure 9 Schematic diagram of the three-dimensional cross-sectional structure of the light guide portion of the present invention; Figure 10 Schematic cross-sectional view of the three-dimensional structure of the fixing ring of the present invention; Figure 11 Schematic three-dimensional structure diagram of the extrusion ring of the present invention.

[0023] In the figure: 1. Handle body; 2. Polishing part; 3. Liquid supply hose; 4. Light guide part; 5. Light guide optical fiber; 6. Docking groove; 7. Polishing docking part; 8. Handle docking part; 9. Liquid storage soft bag; 10. Elastic pressing sheet; 11. Activity groove; 12. Moving plate; 13. Extrusion ring; 14. Liquid outlet hole; 15. Contact air bag; 16. Fixed air bag; 17. Connecting pipe; 18. Slide groove; 19. Contact plate; 20. Plugging plate; 21. Connecting rod; 22. Spring; 23. Reset plate; 24. Fixing ring; 25. LED lamp; 26. Light source part; 27. Piezoelectric crystal. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Embodiment 1: As Figure 1 , Figure 2 , Figure 3 and Figure 8 shown in the technical solution, the present invention provides the following technical solution: A posterior capsule polisher after cataract surgery discloses an elastic pressing sheet 10, through which the outflow rate of the perfusion fluid can be adjusted as needed to better perfuse the eye. A polishing part 2 for polishing the posterior capsule is provided at the front end of the handle body 1. A liquid supply hose 3 for draining the perfusion fluid is penetrated through the inside of the handle body 1, and a liquid storage soft bag 9 is penetrated and connected to the liquid supply hose 3. A liquid outlet hole 14 for the perfusion fluid to flow out is opened on the polishing part 2. An activity groove 11 is opened on the side of the handle body 1, and a moving plate 12 is nested and connected inside the activity groove 11. And an elastic pressing sheet 10 is fixedly connected between the rear end of the moving plate 12 and the handle body 1. The elastic pressing sheet 10 is arranged in an arc structure, and the elastic pressing sheets 10 are symmetrically distributed about the center point of the liquid storage soft bag 9.

[0026] A polishing portion 2 is provided at the front end of the handle body 1. When polishing the posterior capsule, the perfusion fluid is injected into the liquid storage soft sac 9 through the liquid supply hose 3. At the same time, a one-way channel is provided between the liquid storage soft sac 9 and the liquid supply hose 3. At this time, the perfusion fluid can be discharged from the liquid outlet hole 14 provided on the outer side of the polishing portion 2 through the guiding action of the liquid storage soft sac 9 and the liquid supply hose 3. During the process of polishing the posterior capsule, perfusion is carried out synchronously. The perfusion fluid can continuously supplement the aqueous humor lost due to surgical operations, maintain the stability of the anterior chamber depth and pressure, help reduce surgical complications, buffer the impact of the polisher on the corneal endothelium, and reduce the risk of corneal endothelium damage. Medical staff can manually press the elastic pressing piece 10 provided on the side of the handle body 1. At this time, the elastic pressing piece 10 deforms, thereby squeezing the liquid storage soft sac 9. When the liquid storage soft sac 9 is deformed greatly, more perfusion fluid flows out. When the liquid storage soft sac 9 is deformed less, less perfusion fluid flows out. When not squeezed, it flows out at a set normal flow rate. The outflow rate of the perfusion fluid can be adjusted according to needs through the elastic pressing piece 10 to better perfuse the eye interior.

[0027] Embodiment 2: As Figure 1 , Figure 8 , Figure 9 , Figure 10 and Figure 11 shown in the technical solution, the present invention provides the following technical solution: A posterior capsule polisher for cataract surgery discloses a light guiding component, which can assist in illuminating the polishing and perfusion of the eye through the light guiding component, reducing the possibility that the injection of a large amount of perfusion fluid affects the operation field of view: A light guiding portion 4 is fixedly connected to the front end of the handle body 1, and a light guiding component is provided between the outer side of the light guiding portion 4 and the outer side of the handle body 1. The light guiding component realizes the light guiding illumination for intraoperative operations through the extrusion operation of the piezoelectric crystal 27 arranged inside it. The light guiding component includes a pressing ring 13, and the pressing ring 13 is fixedly connected to the front end of the moving plate 12. A fixed ring 24 is fixedly connected to the outer side of the light guiding portion 4, and a docking groove 6 is opened at the rear side of the fixed ring 24, and a piezoelectric crystal 27 is fixedly connected inside the docking groove 6. An LED lamp 25 is fixedly connected to the front side of the fixed ring 24, and the LED lamp 25 is electrically connected to the piezoelectric crystal 27, and a light source portion 26 is provided on the outer side of the LED lamp 25. A light guiding optical fiber 5 is disposed through the inside of the light guiding portion 4, and the end side of the light guiding optical fiber 5 corresponds to the position of the light source portion 26 one by one, and the light guiding portion 4 is made of a transparent material. At the same time, the light guiding optical fibers 5 are arranged in a circular array around the center point of the light guiding portion 4. The docking groove 6 is adapted to the pressing ring 13, and the pressing ring 13 forms a sliding structure with the docking groove 6 through the moving plate 12, and the moving plate 12 forms a sliding structure with the moving groove 11 through the elastic pressing piece 10.

[0028] When a relatively large amount of perfusion fluid is needed in the eye, at this time, the elastic pressing piece 10 undergoes a relatively large deformation synchronously. The front side of the elastic pressing piece 10 will push the moving plate 12 to move along the movable groove 11 synchronously. At this time, the moving moving plate 12 will drive the extrusion ring 13 to move synchronously and enter the docking groove 6 opened inside the fixed ring 24. At this time, the fixed ring 24 squeezes the piezoelectric crystal 27 arranged inside the docking groove 6. The asymmetric distribution of charges inside the piezoelectric crystal 27 generates an electric potential. Through the piezoelectric effect of the piezoelectric crystal 27, the LED lamp 25 connected thereto can have a voltage. At this time, the light source part 26 at the LED lamp 25 can emit light. The light source part 26 that emits light can assist in illuminating the polishing and perfusion of the eye, reducing the possibility that the injection of a large amount of perfusion fluid affects the operation field of view. When the light source part 26 emits light, the light emitted from the light source part 26 enters the core layer of the light guiding optical fiber 5. The light continuously undergoes total internal reflection inside the light guiding optical fiber 5 and is transmitted along the path of the light guiding optical fiber 5. Through the high-efficiency total internal reflection effect of the light guiding optical fiber 5, the loss of light during transmission is very small, so that the light emitted from the light source part 26 can be transmitted to the entire light guiding part 4. Thus, while expanding the propagation range of the light, it can also reduce the interference of the light source part 26 during the operation.

[0029] Embodiment 3: As Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7The technical solution shown in the figure, the present invention provides the following technical solution: a posterior capsule polisher for cataract surgery, disclosing an assembly mechanism, through which the grinding part 2 can be quickly disassembled and assembled while reducing the possibility of bacteria entering the interior of the device through the corridor: the front end of the light guide part 4 is provided with a handle docking part 8, the end side of the grinding part 2 is provided with a polishing docking part 7, and an assembly mechanism for quickly disassembling and assembling the grinding part 2 is provided between the polishing docking part 7 and the handle docking part 8, the assembly mechanism includes a resistance airbag 15, the resistance airbag 15 is fixedly connected to the inner end side of the handle docking part 8, and the inner side of the handle docking part 8 is fixedly connected to a fixed airbag 16, and a connecting tube 17 is provided between the fixed airbag 16 and the resistance airbag 15, and the side of the fixed airbag 16 is connected to the polishing The outer sides of the optical docking part 7 are fitted together, and the polishing docking part 7 is nested and docked inside the handle docking part 8. A slide groove 18 is opened at the center of the handle docking part 8, and the inside of the slide groove 18 is nested and connected with a contact plate 19, and the end side of the contact plate 19 is fixedly connected with a connecting rod 21, the outer side of the connecting rod 21 is fixedly connected with a blocking plate 20, and the end side of the connecting rod 21 is fixedly connected with a reset plate 23, and a spring 22 is fixedly connected between the inner side of the reset plate 23 and the inner wall of the handle docking part 8, the diameter of the reset plate 23 is larger than the diameter of the blocking plate 20, and the diameter of the blocking plate 20 is larger than the maximum diameter of the internal through hole of the handle docking part 8, the contact plate 19 forms a sliding structure with the polishing docking part 7 and the slide groove 18, and the reset plate 23 forms an elastic structure with the handle docking part 8 through the spring 22.

[0030] When the polishing docking portion 7 and the handle docking portion 8 are docked, the end side of the polishing docking portion 7 will squeeze the resistance airbag 15. At this time, the gas inside the resistance airbag 15 will be transported to the inside of the fixed airbag 16 through the connecting tube 17, so that the fixed airbag 16 will expand. The expanded fixed airbag 16 can fit with the outer side of the polishing docking portion 7, thereby further improving the docking stability of the polishing docking portion 7 and the handle docking portion 8. At the same time, when the polishing docking portion 7 is docked, it can contact the resistance plate 19, so that the resistance plate 19 drives the connecting rod 2 1 slides stably along the slide groove 18. At this time, the connecting rod 21 drives the blocking plate 20 to move backward, so that the blocking plate 20 does not block the passage. At this time, the perfusion liquid can enter the polishing part 2. When the polishing part 2 is disassembled, the polishing docking part 7 does not interfere with the interference plate 19. At this time, the reset plate 23 can be reset and moved under the auxiliary action of the elastic force of the spring 22, so that the blocking plate 20 blocks the passage. While reducing the outflow of the perfusion liquid, it can also further reduce the possibility of bacteria entering the interior of the device through the passage.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A posterior capsule polisher after cataract surgery, comprising a handle body (1), wherein a grinding part (2) for polishing the posterior capsule is arranged at the front end of the handle body (1), and is characterized in that, The front end of the handle body (1) is fixedly connected to a light guide portion (4), and a light guide assembly is provided between the outer side of the light guide portion (4) and the outer side of the handle body (1). The light guide assembly realizes light illumination for intraoperative operation by squeezing a piezoelectric crystal (27) provided inside the light guide portion (4). The front end of the light guide portion (4) is provided with a handle docking portion (8), and the end side of the grinding portion (2) is provided with a polishing docking portion (7), and an assembly mechanism for quickly disassembling and assembling the grinding portion (2) is provided between the polishing docking portion (7) and the handle docking portion (8).

2. The posterior capsule polisher for cataract surgery according to claim 1, characterized in that: A liquid supply hose (3) for draining the perfusion liquid is provided through the interior of the handle body (1), and a liquid storage capsule (9) is connected to the liquid supply hose (3). A liquid outlet hole (14) for the perfusion liquid to flow out is provided on the polishing portion (2).

3. A posterior capsule polisher for cataract surgery according to claim 2, characterized in that: A movable groove (11) is provided on the side of the handle body (1), and a movable plate (12) is nested and connected inside the movable groove (11), and an elastic pressing plate (10) is fixedly connected between the rear end of the movable plate (12) and the handle body (1), and the elastic pressing plate (10) is arranged in an arc-shaped structure and is symmetrically distributed about the center point of the liquid storage capsule (9).

4. A posterior capsule polisher for cataract surgery according to claim 3, wherein: The light guide assembly includes an extrusion ring (13), and the extrusion ring (13) is fixedly connected to the front end of the movable plate (12); the outer side of the light guide portion (4) is fixedly connected to a fixing ring (24), and a docking groove (6) is provided on the rear side of the fixing ring (24), and a piezoelectric crystal (27) is fixedly connected inside the docking groove (6); the front side of the fixing ring (24) is fixedly connected to an LED lamp (25), and the LED lamp (25) and the piezoelectric crystal (27) are electrically connected, and a light source portion (26) is provided on the outer side of the LED lamp (25).

5. The posterior capsule polisher for cataract surgery according to claim 4, wherein: A light-guiding optical fiber (5) is provided through the interior of the light-guiding portion (4), and the end side of the light-guiding optical fiber (5) corresponds to the position of the light source portion (26) one by one. The light-guiding portion (4) is made of a transparent material, and the light-guiding optical fibers (5) are distributed in a ring array shape about the center point of the light-guiding portion (4).

6. The posterior capsule polisher for cataract surgery according to claim 5, wherein: The docking groove (6) is adapted to the extrusion ring (13), and the extrusion ring (13) forms a sliding structure with the docking groove (6) through the movable plate (12), and the movable plate (12) forms a sliding structure with the movable groove (11) through the elastic pressing sheet (10).

7. The posterior capsule polisher for cataract surgery according to claim 1, wherein: The assembly mechanism includes a resisting airbag (15), the resisting airbag (15) is fixedly connected to the inner end side of the handle docking portion (8), and the inner side of the handle docking portion (8) is fixedly connected to a fixed airbag (16), and a connecting tube (17) is provided between the fixed airbag (16) and the resisting airbag (15), the side of the fixed airbag (16) is in contact with the outer side of the polishing docking portion (7), and the polishing docking portion (7) is nested and docked inside the handle docking portion (8).

8. A posterior capsule polisher after cataract surgery according to claim 7, characterized in that: A chute (18) is provided at the center of the handle docking part (8), and a contact plate (19) is nested and connected inside the chute (18). A connecting rod (21) is fixedly connected to the end side of the contact plate (19). A blocking plate (20) is fixedly connected to the outer side of the connecting rod (21). A reset plate (23) is fixedly connected to the end side of the connecting rod (21). A spring (22) is fixedly connected between the inner side of the reset plate (23) and the inner wall of the handle docking part (8).

9. A posterior capsule polisher for cataract surgery according to claim 8, characterized in that: The diameter of the reset plate (23) is larger than the diameter of the blocking plate (20), and the diameter of the blocking plate (20) is larger than the maximum value of the diameter of the inner through hole of the handle docking part (8). The contact plate (19) forms a sliding structure with the chute (18) through the polishing docking part (7). The reset plate (23) forms an elastic structure with the handle docking part (8) through the spring (22).

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