Assembling device for damping ring of ophthalmic implanter

Abstract

The utility model discloses an ophthalmic implanter damping ring assembling device which comprises a main body and a limiting block assembly, a damping ring guiding conical column is arranged at the tail end of the main body, a damping ring temporary storage area is arranged in the middle of the main body, an axial limiting groove is formed in the central axis position of the front end of the damping ring temporary storage area, and a second push needle stopping face is arranged at the front end of the axial limiting groove. A limiting column is arranged on the upper side of the axial limiting groove, a stopping block is arranged at the rear end of the axial limiting groove, an inserting groove is formed in the rear end of the transverse limiting groove, and the limiting block assembly is installed in a central shaft hole in the front end of the body and comprises a push needle axial limiting block, two elastic piece fixing blocks and two elastic pieces. The two elastic piece fixing blocks are installed on the two sides of the tail end of the push pin axial limiting block respectively, and the two elastic pieces are installed between the two elastic piece fixing blocks and the push pin axial limiting block respectively. And the damping ring can be effectively prevented from being damaged, and the safety is high.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to an assembly device for a damping ring of an ophthalmic implant. Background Technology

[0002] Currently, during the assembly of ophthalmic implant damping rings, the damping ring needs to be opened with forceps and then fitted onto the plunger. This process can easily damage the damping ring, and the manual assembly is laborious and inefficient. Therefore, there is an urgent need to develop an assembly device for ophthalmic implant damping rings to solve these technical problems.

[0003] In view of the above, this utility model is hereby proposed. Utility Model Content

[0004] The purpose of this invention is to provide an assembly device for a damping ring of an ophthalmic implant. The device has a compact structure and ingenious design, which assembles the push needle and the damping ring together. This not only saves time and effort and greatly improves assembly efficiency, but also effectively prevents damage to the damping ring, thus improving safety. It has broad application prospects and is conducive to its widespread application.

[0005] To achieve the above objectives, this utility model provides an assembly device for a damping ring of an ophthalmic implant, comprising a main body and a limiting block assembly. The main body has a damping ring guide cone at its tail end, which is conical and guides the damping ring in its initial state onto the device for easy installation. The main body has a damping ring storage area in its middle section, capable of storing 20-30 damping rings in the state after device installation, preparing for the next step of assembling the damping rings with a pusher needle. An axial limiting groove is located at the central axis of the front end of the damping ring storage area, with a pusher needle stop surface at the front end of the axial limiting groove. A limiting post is located on the upper side of the axial limiting groove, and a blocking block is located at the rear end of the axial limiting groove. A transverse limiting groove is located on the upper side of the limiting post, and an insertion groove is located at the rear end of the transverse limiting groove. The limiting block assembly is installed in the central shaft hole at the front end of the main body, and the limiting block assembly includes a pusher needle. The device comprises an axial limiting block, two spring clip fixing blocks, and two spring clips. The two spring clip fixing blocks are respectively installed on both sides of the tail end of the axial limiting block of the push needle. The two spring clips are respectively installed between the two spring clip fixing blocks and the axial limiting block of the push needle. In use, the push needle of the ophthalmic implant is installed at the front end of the device, and the damping ring is installed from the tail end. The rear end of the push needle is provided with a buckle, the front end of the buckle is provided with a damping ring groove, the rear end of the damping ring groove is provided with a stop surface one, a temporary limiting structure is provided between the damping ring groove and the buckle, and the rear end of the temporary limiting structure is provided with an insertion block. The insertion block is inserted into the insertion groove to ensure that the push needle will not tilt on the device. The front end of the insertion block is provided with a stop surface two. The damping ring is finally installed in the damping ring groove through the device. At this time, the state of the damping ring is the damping ring state after the push needle is installed. The damping ring installation process includes three states: the initial state damping ring, the damping ring state after the device is installed, and the damping ring state after the push needle is installed.

[0006] Preferably, the transverse limiting groove cooperates with the temporary limiting structure to prevent the pusher axis from rotating, and the rear end of the insertion groove is provided with a stop surface four, which cooperates with stop surface two, with a cooperation gap of no more than 0.1mm.

[0007] Preferably, the push pin axial limiting block has a push pin insertion hole on its central axis. The push pin insertion hole cooperates with a buckle to prevent the push pin from moving left and right on the device. The outer circumference of the push pin axial limiting block has a limiting groove on one side. The limiting groove cooperates with a limiting post to prevent the limiting block assembly from rotating in the main body and to ensure assembly accuracy. Two limiting surfaces are symmetrically provided on both sides of the limiting groove. The center of each of the two limiting surfaces is provided with a spring head insertion hole. Two slots are provided on the left and right sides of each of the two spring head insertion holes.

[0008] Preferably, the plane of the spring clip fixing block is a second limiting surface, which is zero-to-zero fitted with the first limiting surface to ensure the fitting accuracy of the device. The second limiting surface has a spring clip mounting groove in the middle, and a spring clip is installed in the spring clip mounting groove. The second limiting surface is provided on both sides of the width direction of the spring clip mounting groove and on both sides of the length direction of the spring clip mounting groove. There are locking posts on both sides of the spring clip mounting groove, and the locking posts are fitted with locking slots. The length of the long groove of the locking slot is less than the length of the first limiting surface. After the spring clip fixing block is installed on the push pin axial limiting block, it restricts the movement of the spring clip fixing block back and forth on the push pin axial limiting block.

[0009] Preferably, the spring is a sheet metal structure, with a uniform thin sheet shape and elasticity. The lower end of the spring is provided with a spring head. The two sides of the spring in the width direction are transverse limiting surfaces one, and the two sides of the spring in the length direction are longitudinal limiting surfaces one. The spring head is coaxially engaged with the spring head insertion hole. The spring head passes through and protrudes from the spring head insertion hole by 0.1-0.15mm to ensure that the spring head can rebound smoothly after being subjected to force. The second transverse limiting surface engages with the first transverse limiting surface to prevent the spring from moving left and right in the spring mounting slot and to ensure the positional accuracy of the spring. The second longitudinal limiting surface engages with the first longitudinal limiting surface to prevent the spring from moving back and forth in the spring mounting slot and to ensure the positional accuracy of the spring.

[0010] Preferably, the force of the spring is 4-5N. When the push pin is installed into the device, the latch initially forces the spring head to retract. As the push pin continues to advance, the latch disengages from the spring head, and the spring head springs back. At this time, the spring's force of 4-5N holds the push pin in place, preventing it from coming off the device due to gravity or a small force. When the push pin is removed from the device, a force greater than 5N can force the latch on the push pin to retract the spring head. As the push pin continues to retract, the latch disengages from the spring head, and the spring head springs back. After this springback, the subsequent installation of the damping ring can continue.

[0011] Preferably, the outer circumference of the limiting block assembly is the mounting surface of the limiting block assembly, the tail end plane of the limiting block assembly is the third stopping surface, and the front end of the limiting block assembly is provided with a push pin stopping surface. The gap between the push pin stopping surface and the first stopping surface is no more than 0.1mm. This not only improves the efficiency of the device during production, but also ensures the accuracy of the push pin assembly with the device, and ensures that the damping ring can be smoothly installed on the push pin. The axial limiting groove is interference-fitted with the mounting surface of the limiting block assembly, ensuring that the limiting block assembly is firmly installed with the main body and will not fall off. The blocking block prevents the third stopping surface from moving backward, ensuring that the first pushing pin stopping surface protrudes from the second pushing pin stopping surface, with a step difference of 0.1-0.4mm. This design ensures that the first pushing pin stopping surface only mates with the first stopping surface.

[0012] The present invention provides an assembly device for a damping ring of an ophthalmic implant, which has the following beneficial effects.

[0013] This utility model has a compact structure and ingenious design. By assembling the pusher and the damping ring together, it not only saves time and effort and greatly improves assembly efficiency, but also effectively prevents the damping ring from being damaged, thus improving safety. Attached Figure Description

[0014] Figure 1 A schematic diagram of the assembly device for a damping ring of an ophthalmic implant provided by this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the present invention, the pusher, and the damping ring after assembly;

[0016] Figure 3 This is a top view of the present invention after assembly with the push pin;

[0017] Figure 4 for Figure 3 AA cross-section view;

[0018] Figure 5 for Figure 4 A magnified view of section IV;

[0019] Figure 6 This is a front view of the present invention after assembly with the push pin;

[0020] Figure 7 for Figure 6 BB cross-section;

[0021] Figure 8 This is a partial enlarged view of point I after the present invention is assembled with the push pin;

[0022] Figure 9 This is a three-dimensional schematic diagram of the limit block assembly;

[0023] Figure 10 This is a front view of the limit block component;

[0024] Figure 11 for Figure 10 CC cross-section;

[0025] Figure 12 for Figure 10 DD cross-section;

[0026] Figure 13 A three-dimensional schematic diagram with the main body as the subject;

[0027] Figure 14 A front view of the main body;

[0028] Figure 15 The left view of the main body;

[0029] Figure 16 for Figure 14EE cross-section;

[0030] Figure 17 for Figure 16 A magnified view of section II;

[0031] Figure 18 This is a three-dimensional schematic diagram of the pusher pin axial limiting block;

[0032] Figure 19 This is a front view of the pusher pin axial limiting block;

[0033] Figure 20 for Figure 19 FF cross-sectional view;

[0034] Figure 21 This is a front view of the spring clip fixing block;

[0035] Figure 22 A three-dimensional schematic diagram of the spring clip fixing block;

[0036] Figure 23 This is a three-dimensional schematic diagram of the shrapnel.

[0037] Figure 24 This is a front view of the shrapnel;

[0038] Figure 25 This is the left view of the shrapnel;

[0039] Figure 26 This is a three-dimensional schematic diagram of the pusher needle;

[0040] Figure 27 This is a front view of the pusher needle;

[0041] Figure 28 for Figure 26 A magnified view of section III.

[0042] In the picture:

[0043] 1. Main Body 101. Damping Ring Guide Conical Post 102. Damping Ring Temporary Storage Area 103. Axial Limiting Groove 104. Limiting Post 105. Blocking Block 106. Lateral Limiting Groove 107. Insertion Groove 108. Push Pin Stop Surface Two 109. Stop Surface Four 2. Push Pin Axial Limiting Block 201. Push Pin Insertion Hole 202. Limiting Groove 203. Slot 204. Spring Head Insertion Hole 205. Limiting Surface One 3. Spring Fixing Block 301. Slot 302. Spring Mounting Groove 303. Limiting Surface Two 304. Lateral Limiting Surface Two 05. Longitudinal limiting surface II 4. Spring piece 401. Spring piece head 402. Lateral limiting surface I 403. Longitudinal limiting surface I 5. Push pin 501. Damping ring groove 502. Temporary limiting structure 503. Buckle 504. Insertion block 505. Stop surface I 506. Stop surface II 6. Damping ring 601. Initial state damping ring 602. Damping ring state after installation device 603. Damping ring state after push pin installation 7. Limiting block assembly 701. Limiting block assembly mounting surface 702. Stop surface III 703. Push pin stop surface I. Detailed Implementation

[0044] The present invention will be further described below with reference to specific embodiments and accompanying drawings to help understand the content of the present invention.

[0045] like Figure 1 The diagram shown is a structural schematic of an assembly device for a damping ring of an ophthalmic implant provided by this utility model. The assembly device for a damping ring of an ophthalmic implant provided by this utility model includes a main body 1 and a limiting block assembly 7, as shown... Figures 13-17 The figures shown are a 3D schematic diagram, front view, left view, EE cross-section, and a partial enlarged view at point II. The main body 1 has a damping ring guide cone post 101 at its tail end. This cone-shaped post guides the damping ring 601 in its initial state onto the device for easy installation. The main body 1 also has a damping ring storage area 102 in its middle section, which can temporarily store 20-30 damping rings 6. At this time, the damping rings 6 are in the state 602 after device installation, preparing for the next step of assembling the damping rings 6 using a push pin. An axial limiting groove 103 is provided at the front centerline position of the temporary storage area 102. A push pin stop surface 108 is provided at the front end of the axial limiting groove 103. A limiting post 104 is provided on the upper side of the axial limiting groove 103. A blocking block 105 is provided at the rear end of the axial limiting groove 103. A transverse limiting groove 106 is provided on the upper side of the limiting post 104. An insertion groove 107 is provided at the rear end of the transverse limiting groove 106. The limiting block assembly 7 is installed in the front center axis hole of the main body 1. Figures 9-12The figures shown are a three-dimensional schematic diagram, a front view, a CC section view, and a DD section view of the limiting block assembly. The limiting block assembly 7 includes a push needle axial limiting block 2, two spring sheet fixing blocks 3, and two spring sheets 4. The two spring sheet fixing blocks 3 are respectively installed on both sides of the tail end of the push needle axial limiting block 2, and the two spring sheets 4 are respectively installed between the two spring sheet fixing blocks 3 and the push needle axial limiting block 2. In use, the push needle 5 of the ophthalmic implant is installed at the front end of the device, and the damping ring 6 is installed from the tail end.

[0046] like Figures 26-28 The figures shown are a three-dimensional schematic diagram of the pusher pin, a front view, and a partial enlarged view at point III. The pusher pin 5 has a latch 503 at its rear end, a damping ring groove 501 at its front end, a stop surface 505 at its rear end, a temporary limiting structure 502 between the damping ring groove 501 and the latch 503, and an insertion block 504 at its rear end. The insertion block 504 is inserted into the insertion slot 107 to ensure that the pusher pin 5 does not tilt on the device. The insertion block 504 has a stop surface 506 at its front end. The damping ring 6 is finally installed in the damping ring groove 501 through the device. At this time, the state of the damping ring 6 is the damping ring state 603 after the pusher pin is installed. The process of installing the damping ring 6 into the pusher pin includes three states: the initial state damping ring 601, the damping ring state 602 after the device is installed, and the damping ring state 603 after the pusher pin is installed.

[0047] The transverse limiting groove 106 cooperates with the temporary limiting structure 502 to prevent the axis of the push needle 5 from rotating. The rear end of the insertion groove 107 is provided with a stop surface 109, which cooperates with the stop surface 506 with a clearance of no more than 0.1mm.

[0048] like Figures 18-20 The figures shown are a three-dimensional schematic diagram, a front view, and a cross-sectional view of the pusher pin axial limiting block. The pusher pin axial limiting block 2 has a pusher pin insertion hole 201 on its central axis. The pusher pin insertion hole 201 cooperates with the buckle 503 to prevent the pusher pin 5 from moving left and right on the device. A limiting groove 202 is provided on one side of the outer circumference of the pusher pin axial limiting block 2. The limiting groove 202 cooperates with the limiting post 104 to prevent the limiting block assembly 7 from rotating within the main body 1, ensuring assembly accuracy. Two limiting surfaces 205 are symmetrically provided on both sides of the limiting groove 202. A spring clip insertion hole 204 is provided at the center of each of the two limiting surfaces 205. Two slots 203 are provided on the left and right sides of each of the two spring clip insertion holes 204.

[0049] like Figures 21-22The figures show a front view and a three-dimensional schematic diagram of the spring clip fixing block. The spring clip fixing block 3 has a second limiting surface 303, which mates with the first limiting surface 205 to ensure the fitting accuracy of the device. A spring clip mounting groove 302 is provided in the center of the second limiting surface 303, and a spring clip 4 is installed in the groove. Lateral limiting surfaces 304 are provided on both sides of the width direction of the spring clip mounting groove 302, and longitudinal limiting surfaces 305 are provided on both sides of the length direction. A locking post 301 is provided on each side of the spring clip mounting groove 302, and the locking post 301 mates with a locking groove 203. The length of the elongated groove of the locking groove 203 is less than the length of the first limiting surface 205. After the spring clip fixing block 3 is installed on the pusher pin axial limiting block 2, it restricts the movement of the spring clip fixing block 3 back and forth within the pusher pin axial limiting block 2.

[0050] like Figures 23-25 The figures shown are a three-dimensional schematic diagram, a front view, and a left view of the spring sheet. The spring sheet 4 is a sheet metal structure, with a uniform thin sheet shape and elasticity. The lower end of the spring sheet 4 is provided with a spring sheet head 401. The two sides of the spring sheet 4 in the width direction are transverse limiting surfaces 402, and the two sides of the spring sheet 4 in the length direction are longitudinal limiting surfaces 403. The spring sheet head 401 is coaxially engaged with the spring sheet head insertion hole 204. The spring sheet head 401 passes through and protrudes from the spring sheet head insertion hole 204, and then protrudes by 0.1-0.15mm to ensure that the spring sheet head 401 can rebound smoothly after being subjected to force. The second transverse limiting surface 304 engages with the first transverse limiting surface 402 to prevent the spring sheet 4 from moving left and right in the spring sheet mounting groove 302 and to ensure the positional accuracy of the spring sheet 4. The second longitudinal limiting surface 305 engages with the first longitudinal limiting surface 403 to prevent the spring sheet 4 from moving back and forth in the spring sheet mounting groove 302 and to ensure the positional accuracy of the spring sheet 4.

[0051] The force of the spring 4 is 4-5N. When the push pin 5 is installed into the device, the latch 503 initially forces the spring head 401 to retract. The push pin 5 continues to advance, the latch 503 disengages from the spring head 401, and the spring head 401 springs back. At this time, the force of 4-5N of the spring 4 is used to hold the push pin 5 in place. The push pin 5 will not come out of the device due to gravity or a small force. When the push pin 5 is removed from the device, a force greater than 5N can be used to force the latch 503 on the push pin 5 to retract the spring head 401. The push pin 5 continues to retract, the latch 503 disengages from the spring head 401, and the spring head 401 springs back. After this springback, the subsequent installation of the damping ring 6 can continue.

[0052] Preferably, the outer circumference of the limiting block assembly 7 is the limiting block assembly mounting surface 701, the tail end plane of the limiting block assembly 7 is the third stopping surface 702, and the front end of the limiting block assembly 7 is provided with a push pin stopping surface 703. The gap between the push pin stopping surface 703 and the first stopping surface 505 is no more than 0.1mm. This not only improves the efficiency of the device during production, but also ensures the accuracy of the push pin 5 and the device assembly, and ensures that the damping ring 6 can be smoothly installed on the push pin 5. The axial limiting groove 103 is interference-fitted with the limiting block assembly mounting surface 701 to ensure that the limiting block assembly 7 and the main body 1 are firmly installed and will not fall off. The blocking block 105 prevents the third stopping surface 702 from moving backward, ensuring that the first pushing pin stopping surface 703 protrudes from the second pushing pin stopping surface 108, with a step difference of 0.1-0.4mm. This design ensures that the first pushing pin stopping surface 703 only mates with the first stopping surface 505.

[0053] like Figure 2 The diagram shown is a structural schematic of the present invention, including the pusher and damping ring, after assembly; as shown... Figures 3-5 The figures shown are a top view, a cross-sectional view (AA), and a partially enlarged view at point IV, respectively, of the present invention after assembly with the push pin. Figures 6-7 The figures shown are a front view and a BB cross-sectional view of the present invention after assembly with the push pin; as shown Figure 8 The image shown is a partial enlarged view of section I after the present invention is assembled with the push pin. The assembly process is as follows:

[0054] (1) Before installation, the damping ring 6 is a standard part. At this time, the state of the damping ring 6 is the initial state damping ring 601, with a wire diameter between 1.2-1.5mm and an inner diameter between 6-7mm.

[0055] (2) The damping ring 6 is guided by the damping ring guide cone 101 on the main body 1 to the damping ring storage area 102 on the device. At this time, the state of the damping ring 6 is the damping ring state 602 after the device is installed. At this time, the wire diameter is between 1-1.3mm and the inner diameter is between 9-10mm. Multiple damping rings 6 are stored in the damping ring storage area 102.

[0056] (3) Installation device for push pin 5: The buckle 503 on push pin 5 is inserted into push pin insertion hole 201. Push pin 5 continues to advance. At the beginning, buckle 503 forces spring head 401 to retract. Push pin 5 continues to advance. Buckle 503 leaves spring head 401. Spring head 401 springs back. At this time, a force of 4-5N is used to hold push pin 5 in place. Push pin 5 will not come out of the device due to gravity or small force. After installation, continue to the next process.

[0057] (4) Damping ring 6 is installed on push pin 5: At this time, the damping ring 6 on the damping ring storage area 102 moves forward until the damping ring 6 falls into the damping ring groove 501. At this time, the state of the damping ring 6 is the damping ring state 603 after the push pin is installed, the wire diameter is between 1.1-1.4mm, and the inner diameter is 7-8mm.

[0058] (5) The process of removing the damping ring 6 after it is installed on the pusher pin 5: A force greater than 5N can be used to force the clip 503 on the pusher pin 5 to retract the spring head 401. The pusher pin 5 continues to retract, the clip 503 leaves the spring head 401, and the spring head 401 springs back. After this springing back, the installation of the damping ring 6 can continue.

[0059] This utility model has a compact structure and ingenious design. By assembling the pusher 5 and the damping ring 6 together, it not only saves time and effort and greatly improves assembly efficiency, but also effectively prevents the damping ring 6 from being damaged, thus improving safety.

[0060] This article uses specific examples to illustrate the inventive concept in detail. The description of the above embodiments is only for the purpose of helping to understand the core idea of ​​this utility model. It should be noted that any obvious modifications, equivalent substitutions or other improvements made by those skilled in the art without departing from the inventive concept should be included within the protection scope of this utility model.

Claims

1. An assembly device for a damping ring of an ophthalmic implant, characterized in that, The assembly includes a main body and a limiting block assembly. The main body has a damping ring guide cone at its tail end, the guide cone being conical. A damping ring storage area is located in the middle of the main body. An axial limiting groove is located at the central axis position of the front end of the storage area. A push pin stop surface is located at the front end of the axial limiting groove. A limiting post is located on the upper side of the axial limiting groove. A blocking block is located at the rear end of the axial limiting groove. A transverse limiting groove is located on the upper side of the limiting post. An insertion groove is located at the rear end of the transverse limiting groove. The limiting block assembly is installed in the central shaft hole at the front end of the main body. The limiting block assembly includes a push pin axial limiting block and two... One spring clip fixing block and two spring clips are installed on both sides of the tail end of the push needle axial limiting block. The two spring clips are installed between the two spring clip fixing blocks and the push needle axial limiting block. In use, the push needle of the ophthalmic implant is installed at the front end of the device, and the damping ring is installed from the tail end. The push needle has a buckle at the rear end, the buckle has a damping ring groove at the front end, the damping ring groove has a stop surface one at the rear end, a temporary limiting structure is provided between the damping ring groove and the buckle, the temporary limiting structure has an insertion block at the rear end, the insertion block is inserted into the insertion groove, and the insertion block has a stop surface two at the front end.

2. The assembly device for a damping ring of an ophthalmic implant according to claim 1, characterized in that, The transverse limiting groove cooperates with the temporary limiting structure. The rear end of the insertion groove is provided with a stop surface four, which cooperates with a stop surface two, with a cooperation gap of no more than 0.1mm.

3. The assembly device for a damping ring of an ophthalmic implant according to claim 2, characterized in that, The push pin axial limiting block has a push pin insertion hole on its central axis. The push pin insertion hole is engaged with a buckle. The outer circumference of the push pin axial limiting block has a limiting groove on one side. The limiting groove is engaged with a limiting post. Two limiting surfaces are symmetrically provided on both sides of the limiting groove. The center of each of the two limiting surfaces is provided with a spring head insertion hole. Two slots are provided on the left and right sides of each of the two spring head insertion holes.

4. The assembly device for a damping ring of an ophthalmic implant according to claim 3, characterized in that, The plane of the spring clip fixing block is a second limiting surface, which is in zero-to-zero fit with the first limiting surface. The second limiting surface has a spring clip mounting groove in the middle, and a spring clip is installed in the spring clip mounting groove. The spring clip mounting groove has transverse limiting surfaces on both sides in the width direction and longitudinal limiting surfaces on both sides in the length direction. There are locking posts on both sides of the spring clip mounting groove, and the locking posts cooperate with the locking groove. The length of the long groove of the locking groove is less than the length of the first limiting surface. After the spring clip fixing block is installed on the push pin axial limiting block, it restricts the spring clip fixing block from moving back and forth on the push pin axial limiting block.

5. The assembly device for a damping ring of an ophthalmic implant according to claim 4, characterized in that, The spring is a sheet metal structure, with a uniform thin sheet shape and elasticity. The spring has a force of 4-5N. The lower end of the spring is provided with a spring head. The two sides of the spring in the width direction are the first transverse limiting surface, and the two sides of the spring in the length direction are the first longitudinal limiting surface. The spring head is coaxially engaged with the spring head insertion hole. The spring head passes through and protrudes from the spring head insertion hole by 0.1-0.15mm. The second transverse limiting surface engages with the first transverse limiting surface, and the second longitudinal limiting surface engages with the first longitudinal limiting surface.

6. The assembly device for a damping ring of an ophthalmic implant according to claim 5, characterized in that, The outer circumference of the limiting block assembly is the mounting surface of the limiting block assembly. The tail end plane of the limiting block assembly is the third stopping surface. The front end of the limiting block assembly is provided with a push pin stopping surface. The gap between the push pin stopping surface and the first stopping surface is no more than 0.1mm. The axial limiting groove is interference-fitted with the mounting surface of the limiting block assembly. The blocking block prevents the third stopping surface from moving backward, ensuring that the first push pin stopping surface protrudes from the second push pin stopping surface, with a step difference of 0.1-0.4mm between them.

Images