Retractable and foldable cataract capsulorhexis assist device

Abstract

The invention relates to the field of cataract surgery, in particular to a telescopic and foldable cataract capsulorhexis assistor which comprises a sleeve, an auxiliary assembly used for assisting the cataract capsulorhexis surgery is arranged in the sleeve and comprises an auxiliary tube, the auxiliary tube is fixedly connected with the inner wall of the sleeve, and a limiting block is fixedly connected to the top of the auxiliary tube. An adjusting rod is slidably connected into the auxiliary pipe, a positioning guide wire is fixedly connected to the end, close to the limiting block, of the adjusting rod, and the end, away from the adjusting rod, of the positioning guide wire obliquely penetrates out of the side wall of the limiting block from the side, close to the auxiliary pipe, of the limiting block and is fixedly connected with the side wall, away from the penetrating position, of the limiting ring. The cataract capsulorhexis auxiliary device has the advantages that the cataract capsulorhexis auxiliary device is easy to operate and complete in function, and doctors can be effectively assisted in cataract surgery.

Description

Technical Field

[0001] The invention relates to the field of cataract surgery, and in particular to a telescopic and foldable cataract capsulorhexis assistant. Background Art

[0002] In existing cataract surgeries, doctors usually need to make a 1.8-3.2mm main incision on the patient's cornea, and then perform continuous circular capsulotomy through this main incision. Based on the complete capsulotomy, the next step of phacoemulsification and other operations are performed to complete the cataract phacoemulsification surgery. This surgical process can effectively perform surgical treatment on the patient's eyes and help the patient's eyes return to normal.

[0003] However, due to the structural design of existing surgical instruments, the corneal incision during surgery is often large, and larger incisions have more adverse effects. Larger incisions will increase the contact area between the intraocular tissue and the external environment after surgery, thereby increasing the risk of inflammatory reactions. Inflammatory response is a self-protection response of the body to injury, but if it is excessive or inappropriate, it will cause further damage to the eye tissue, affecting the surgical effect and postoperative recovery. The choice of incision position and size has an important impact on postoperative visual quality. Larger incisions or incisions in improper locations may affect the curvature of the cornea, leading to visual abnormalities such as astigmatism. These visual abnormalities can seriously affect the patient's quality of vision and quality of life.

[0004] Therefore, the present invention provides a retractable and foldable cataract capsulorhexis assistant. Through the design of the auxiliary component and the capsulorhexis component, the surgical instrument can be retracted and folded, effectively reducing the size of the incision in the hand. Summary of the invention

[0005] To solve the above problems, the present invention provides a retractable and foldable cataract capsulorhexis assistant. Through the design of the auxiliary component and the capsulorhexis component, the surgical instrument can be retracted and folded, reducing the size of the incision in the hand, thereby reducing the adverse effects on the patient and improving the surgical treatment.

[0006] In order to achieve the above-mentioned object, the technical solution of the present invention is as follows: a telescopic and foldable cataract capsulorhexis assistant, comprising a sleeve, in which an auxiliary component for assisting cataract capsulorhexis surgery is arranged;

[0007] The auxiliary component includes an auxiliary tube, the auxiliary tube is fixedly connected to the inner wall of the casing, the top of the auxiliary tube is fixedly connected to a limit block, the limit block is located on the outside of the casing, an adjusting rod is slidably connected in the auxiliary tube, one end of the adjusting rod close to the limit block is fixedly connected to a positioning guide wire, the end of the positioning guide wire away from the adjusting rod is obliquely penetrated from the side of the limit block close to the auxiliary tube to the side wall of the limit block, and the end of the positioning guide wire away from the adjusting rod is fixedly connected to the side wall away from the penetration point of the limit ring.

[0008] The technical principle of the above scheme is as follows: before the operation, the doctor confirms that the circular ring formed by the positioning guide wire is of the minimum diameter to ensure that only a very small incision is required when the positioning guide wire is inserted into the patient's cornea; after the confirmation is completed, the doctor instills eye drops into the patient's eyes for anesthesia, and then makes an incision on the cornea; the doctor holds the cannula, pushes the adjustment rod, and inserts the positioning guide wire into the incision.

[0009] At this time, the doctor pushes the positioning guide wire through the adjusting rod, and the end of the positioning guide wire close to the adjusting rod is pushed out from the auxiliary tube. Due to the certain elasticity and strength of the positioning guide wire itself, combined with the limiting effect of the limit blocks on both ends of the positioning guide wire, the positioning guide wire will form a retractable and adjustable ring; the doctor pushes the adjusting rod to adjust the size of the ring according to the required position and size of the membrane tearing; after the adjustment is completed, the doctor presses the edge of the positioning guide wire to press a circular mark on the surface of the patient's anterior membrane sac, providing the doctor with a membrane tearing trajectory.

[0010] After the positioning is completed, the doctor pulls the adjustment rod, and the adjustment rod pulls the positioning guide wire close to one end of the adjustment rod into the auxiliary tube. The positioning guide wire can then leave the patient's cornea to avoid affecting the doctor's subsequent operations.

[0011] The above scheme has the following beneficial effects:

[0012] 1. In this solution, since the circular ring composed of the positioning guide wire has the smallest diameter in the initial state, the doctor only needs a very small incision to insert the positioning guide wire into the patient's cornea during the operation. This minimally invasive operation not only reduces surgical trauma, but also facilitates postoperative recovery and reduces the risk of infection, thereby effectively achieving better surgical treatment effects and improving the patient's surgical experience.

[0013] 2. In this solution, the positioning guide wire can form a retractable and adjustable ring by pushing the adjustment rod. The doctor can accurately control the size of the ring according to the needs of the operation, thereby pressing an accurate circular mark on the surface of the patient's anterior membrane sac; so that the positioning guide wire can adapt to the different eye conditions of different patients; at the same time, the circular mark provides the doctor with a clear membrane tearing trajectory, thereby improving the accuracy and success rate of the operation.

[0014] 3. The design of the retractable and foldable cataract capsulorhexis assistant in this scheme is simple to operate, so that the doctor can quickly master it during the operation. Whether it is pushing the adjustment rod to adjust the size of the ring or pressing the edge of the positioning guide wire to form a circular imprint, it is simple and easy. This simplicity reduces the difficulty of the operation, simplifies the surgical process, facilitates the doctor's operation, shortens the operation time, and relieves the patient's pain.

[0015] Furthermore, a capsulotomy assembly for cataract capsulotomy is provided in the sleeve, the capsulotomy assembly includes a capsulotomy tube, the capsulotomy tube is fixedly connected to the inner wall of the sleeve, a capsulotomy rod is slidably connected in the capsulotomy tube, one end of the capsulotomy rod is fixedly connected to a plurality of capsulotomy guide wires, the ends of the capsulotomy guide wires away from the capsulotomy rod are fixedly connected to an arc-shaped capsulotomy scraper, and elastic connection assemblies for unfolding the capsulotomy guide wires are provided between adjacent capsulotomy guide wires.

[0016] Beneficial effects: Before the operation, the doctor confirms that the capsulorhexis blade is in a retracted state to ensure that the incision is minimized; after the doctor has positioned the patient's eye, the doctor pushes the capsulorhexis rod, which pushes the capsulorhexis guide wire to slide out of the capsulorhexis tube. At this time, due to the lack of limitation of the capsulorhexis tube, the elastic connecting component unfolds the adjacent capsulorhexis guide wires, and the capsulorhexis guide wire drives the capsulorhexis scraper to unfold. Several capsulorhexis scrapers unfold to form a semicircular scraper, and the doctor can use the semicircular scraper to scrape the patient's anterior theca; after the scraping is completed, the doctor pulls the capsulorhexis rod, which pulls the capsulorhexis guide wire to slide into the capsulorhexis tube. At this time, due to the limitation of the capsulorhexis guide wire by the capsulorhexis tube, the capsulorhexis guide wire exerts pressure on the elastic connecting component, causing the elastic connecting component to contract. At this time, the capsulorhexis guide wire drives the adjacent capsulorhexis scrapers to contract. When the capsulorhexis scrapers contract, the side walls of the adjacent capsulorhexis scrapers will clamp the scraped anterior theca, thereby removing the scraped anterior theca.

[0017] Furthermore, one end of the adjusting rod away from the limiting block is fixedly connected with a first pushing head.

[0018] Beneficial effect: When the doctor adjusts the positioning guide wire, he uses the first push head to push the adjustment rod; this design facilitates more accurate adjustment of the positioning guide wire and saves more effort.

[0019] Furthermore, one end of the capsulorhexis rod away from the capsulorhexis guide wire is fixedly connected with a second pusher head.

[0020] Beneficial effect: When the doctor adjusts the capsulorhexis scraper, the second pusher head is used to push the capsulorhexis rod; such a design facilitates more accurate control of the extension and scraping of the capsulorhexis scraper and saves more effort.

[0021] Furthermore, the first pusher head and the second pusher head are dyed with different colors.

[0022] Beneficial effect: It is convenient for doctors to distinguish the first pusher head from the second pusher head, so as to accurately perform positioning guide wire adjustment operations and control the extension and scraping of the capsulorhexis scraper.

[0023] Furthermore, the elastic connection assembly includes a plurality of elastic guide wires and connection blocks. The elastic guide wires are fixedly connected between adjacent connection blocks. The connection blocks are fixedly connected to the capsulorhexis guide wires adjacent to the elastic guide wires on one side away from the elastic guide wires. The elastic guide wires are all spiral-shaped.

[0024] Beneficial effects: The elastic guide wire adopts a spiral design, which not only provides good elasticity, but also can effectively expand and deform through its spiral structure when subjected to external force, thereby playing a better buffering and regulating role. When the capsulorhexis guide wire contracts, the elastic guide wire folds and contracts, which is convenient for the contraction of the capsulorhexis scraper. The connecting block can ensure the firm connection between the elastic guide wire and the capsulorhexis guide wire, and can also ensure the mutual stability between several elastic guide wires; the side of the connecting block away from the elastic guide wire is fixedly connected to the capsulorhexis guide wire, so that the capsulorhexis guide wire can maintain integrity and stability when pushed by the capsulorhexis rod.

[0025] Furthermore, the positioning guide wire and the capsulorhexis guide wire are both made of memory metal materials.

[0026] Beneficial effects: The memory metal material also has a certain adaptability, and can be fine-tuned according to the curvature of the eyeball and the shape of the anterior membrane capsule, so that the capsulotomy scraper can more closely perform capsulotomy along the circular mark formed by the positioning guide wire, and also enables the positioning guide wire to be adjusted to different sizes. This adaptability improves the success rate of the operation and the comfort of the patient.

[0027] Furthermore, the elastic guide wire and the connecting block are both made of thermoplastic elastomer material.

[0028] Beneficial effects: Thermoplastic elastomer materials have good foldability and elasticity, so that the elastic guide wire can be well folded and contracted when contracted, and can be well unfolded when unfolded by utilizing its elasticity. At the same time, thermoplastic elastomer materials have good biocompatibility, which can reduce the harm to the patient's eyes.

[0029] Furthermore, the sleeve, the auxiliary tube, the limit block, the adjusting rod, the capsulorhexis tube, the capsulorhexis rod, the first pusher head and the second pusher head are all made of plastic.

[0030] Beneficial effects: Plastic materials are lighter than traditional materials such as metal, which makes the entire surgical instrument lighter during operation, reduces the physical burden of doctors, and improves the flexibility and comfort of surgery. At the same time, the production cost of plastic materials is relatively low. Using plastic to make surgical instruments can significantly reduce manufacturing costs, thereby reducing medical costs and benefiting patients.

[0031] Furthermore, the positioning guide wires are connected end to end to form a positioning ring, and the maximum diameter of the positioning ring is 5.5 mm.

[0032] Beneficial effects: The 5.5mm capsulorhexis diameter matches the natural pupil size of most patients, which helps reduce the optical problems caused by excessive capsulorhexis after surgery. The 5.5mm capsulorhexis diameter can provide a stable and suitable intraocular lens implantation environment, which helps reduce the displacement or tilt of the intraocular lens, thereby improving the postoperative visual quality. Therefore, the maximum diameter of the positioning ring is set to 5.5mm.

[0033] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is an axonometric view of an embodiment of a telescopically foldable cataract capsulorhexis assisting device of the present invention;

[0035] Figure 2 A front cross-sectional view of an embodiment of a positioning assembly of the present invention;

[0036] Figure 3 A front cross-sectional view of an embodiment of a capsulorhexis assembly of the present invention;

[0037] Figure 4 It is an axonometric view of an embodiment of the elastic connection assembly of the present invention.

[0038] The figure marks in the drawings of the specification include: 1. cannula; 2. positioning guide wire; 3. limit block; 4. adjusting rod; 5. auxiliary tube; 6. first pusher head; 7. capsulorhexis scraper; 8. elastic guide wire; 9. capsulorhexis guide wire; 10. capsulorhexis tube; 11. capsulorhexis rod; 12. second pusher head. DETAILED DESCRIPTION

[0039] The following is further described in detail through specific implementation methods:

[0040] Embodiment 1:

[0041] As attached Figure 1 , Figure 2 As shown: a telescopic and foldable cataract capsulorhexis assistant, comprising a sleeve 1, in which an auxiliary component for assisting cataract capsulorhexis surgery is arranged; the auxiliary component comprises an auxiliary tube 5, the auxiliary tube 5 is integrally formed with the inner wall of the sleeve 1, a limiting block 3 is integrally formed on the top of the auxiliary tube 5, the limiting block 3 is located outside the sleeve 1, an adjusting rod 4 is slidably connected in the auxiliary tube 5, a positioning guide wire 2 is fixedly bonded to one end of the adjusting rod 4 close to the limiting block 3, the end of the positioning guide wire 2 away from the adjusting rod 4 obliquely penetrates the side wall of the limiting block 3 from the side of the limiting block 3 close to the auxiliary tube 5, and the end of the positioning guide wire 2 away from the adjusting rod 4 is fixedly bonded to the side wall of the limiting block 3 away from the penetration point. The positioning guide wire 2 is connected end to end to form a positioning ring, the minimum diameter of the positioning ring is 0mm, and the maximum diameter of the positioning ring is 5.5mm.

[0042] The specific implementation process is as follows:

[0043] Before the operation, the doctor confirms that the diameter of the positioning ring formed by the positioning guide wire 2 is zero, ensuring that only a very small incision is required when the positioning guide wire 2 is inserted into the patient's cornea; after the confirmation is completed, the doctor instills eye drops for anesthesia into the patient's eyes, and then makes an incision on the cornea; the doctor holds the sleeve 1, pushes the adjustment rod 4, and inserts the positioning guide wire 2 into the incision.

[0044] At this time, the doctor pushes the positioning guide wire 2 through the adjusting rod 4, and the end of the positioning guide wire 2 close to the adjusting rod 4 is pushed out from the auxiliary tube 5. Since the positioning guide wire 2 itself has a certain elasticity and strength, and cooperates with the limiting effect of the limit block 3 on the two ends of the positioning guide wire 2, the positioning guide wire 2 will form a retractable and adjustable positioning ring; the doctor pushes the adjusting rod 4 to adjust the size of the positioning ring according to the required position and size of the membrane tearing; after the positioning ring is adjusted, the doctor presses the edge of the positioning guide wire 2 to press a circular mark on the surface of the patient's anterior membrane sac, providing the doctor with a membrane tearing trajectory.

[0045] The maximum diameter of the positioning ring is 5.5mm. The 5.5mm capsulorhexis diameter matches the natural pupil size of most patients, which helps reduce optical problems caused by excessive capsulorhexis after surgery. The 5.5mm capsulorhexis diameter can provide a stable and suitable intraocular lens implantation environment, help reduce the displacement or tilt of the intraocular lens, and thus improve postoperative visual quality.

[0046] After the positioning is completed, the doctor pulls the adjustment rod 4, and the adjustment rod 4 pulls the positioning guide wire 2 close to one end of the adjustment rod 4 into the auxiliary tube 5, and the positioning guide wire 2 can leave the inside of the patient's cornea to avoid affecting the doctor's subsequent operations.

[0047] In this embodiment, since the circular ring formed by the positioning guide wire 2 has the smallest diameter in the initial state, the doctor only needs a very small incision to insert the positioning guide wire 2 into the patient's cornea during the operation. This minimally invasive operation not only reduces surgical trauma, but also facilitates postoperative recovery and reduces the risk of infection, thereby effectively achieving better surgical treatment effects and improving the patient's surgical experience.

[0048] In this embodiment, the positioning guide wire 2 can form a retractable and adjustable ring by pushing the adjusting rod 4. The doctor can accurately control the size of the ring according to the needs of the operation, thereby pressing an accurate circular mark on the surface of the patient's anterior membrane sac; so that the positioning guide wire 2 can adapt to the different eye conditions of different patients; at the same time, the circular mark provides the doctor with a clear membrane tearing trajectory, thereby improving the accuracy and success rate of the operation.

[0049] The telescopic and foldable cataract capsulorhexis assistant of the present invention is easy to operate, so that the doctor can quickly master it during the operation. Whether it is pushing the adjustment rod 4 to adjust the size of the positioning ring or pressing the edge of the positioning guide wire 2 to form a circular imprint, it is simple and easy. This simplicity reduces the difficulty of the operation, simplifies the operation process, is convenient for the doctor to operate, shortens the operation time, and alleviates the pain of the patient.

[0050] Embodiment 2:

[0051] As attached Figure 1 , Figure 3 , Figure 4 As shown, the difference from the above embodiment is that, Figure 3 As shown, a capsulorhexis assembly for cataract capsulorhexis is also provided in the sleeve 1, and the capsulorhexis assembly includes a capsulorhexis tube 10, which is integrally formed with the inner wall of the sleeve 1, and a capsulorhexis rod 11 is slidably connected in the capsulorhexis tube 10, and a plurality of capsulorhexis guide wires 9 are fixedly bonded to one end of the capsulorhexis rod 11, and an arc-shaped capsulorhexis scraper 7 is fixedly bonded to the end of the capsulorhexis guide wires 9 away from the capsulorhexis rod 11, and an elastic connecting assembly for unfolding the capsulorhexis guide wires 9 is provided between adjacent capsulorhexis guide wires 9.

[0052] like Figure 4 As shown, the elastic connection assembly includes a plurality of elastic guide wires 8 and connection blocks. The elastic guide wires 8 are fixedly bonded between adjacent connection blocks. The connection blocks are fixedly bonded to the capsulorhexis guide wires 9 adjacent to the elastic guide wires 8 on one side away from the elastic guide wires 8. The elastic guide wires 8 are all spiral-shaped.

[0053] The specific implementation process is as follows:

[0054] Before the operation, the doctor confirms that the capsulotomy blade 7 is in a retracted state to ensure that the incision is minimized; after the doctor has positioned the patient's eye, the doctor pushes the capsulotomy rod 11, and the capsulotomy rod 11 pushes the capsulotomy guide wire 9 to slide out of the capsulotomy tube 10. At this time, the capsulotomy guide wire 9 lacks the limit of the capsulotomy tube 10, and the elastic guide wire 8 unfolds the adjacent capsulotomy guide wires 9. The capsulotomy guide wire 9 drives the capsulotomy blade 7 to unfold. Several capsulotomy blades 7 are unfolded to form a semicircular scraper, and the doctor can use the semicircular scraper to scrape the patient's anterior theca.

[0055] After scraping is completed, the doctor pulls the capsulorhexis rod 11, and the capsulorhexis rod 11 pulls the capsulorhexis guide wire 9 to slide into the capsulorhexis tube 10. At this time, due to the limitation of the capsulorhexis guide wire 9 by the capsulorhexis tube 10, the capsulorhexis guide wire 9 exerts pressure on the elastic guide wire 8, causing the elastic guide wire 8 to fold and shrink. At this time, the capsulorhexis guide wire 9 drives the adjacent capsulorhexis scraper 7 to shrink. When the capsulorhexis scraper 7 shrinks, the side walls of the adjacent capsulorhexis scraper 7 will clamp the scraped anterior membrane sac, thereby removing the scraped anterior membrane sac.

[0056] like Figure 1As shown, the adjusting rod 4 and the capsulotomy rod 11 are both located inside the sleeve 1, so that the doctor only needs to make one incision when positioning and tearing the capsulotomy of the patient's anterior theca. By telescopically rotating the adjusting rod 4 and the capsulotomy rod 11 in this incision, the operation can be performed in one incision, which greatly reduces the need for the amount of incision, thereby reducing damage to the patient and improving the patient's recovery effect.

[0057] Embodiment 3:

[0058] As attached Figure 1 , Figure 2 , Figure 3 As shown, the difference from the above embodiment is that the end of the adjusting rod 4 away from the limit block 3 is integrally formed with a first pusher head 6. The end of the capsulorhexis rod 11 away from the capsulorhexis guide wire 9 is integrally formed with a second pusher head 12. The first pusher head 6 and the second pusher head 12 are dyed with different colors, the first pusher head 6 is yellow, and the second pusher head 12 is blue.

[0059] The specific implementation process is as follows:

[0060] When performing surgery, the doctor distinguishes the first pusher head 6 and the second pusher head 12 according to the different colors, so as to accurately adjust the positioning guide wire 2 and control the extension and scraping of the capsulorhexis scraper 7.

[0061] When the doctor adjusts the positioning guide wire 2, the first pusher head 6 is used to push the adjustment rod 4; this design facilitates the doctor to more accurately adjust the positioning guide wire 2. When the doctor adjusts the capsulorhexis scraper 7, the second pusher head 12 is used to push the capsulorhexis rod 11; this design facilitates the doctor to more accurately control the extension and scraping of the capsulorhexis scraper 7. The design of the first pusher head 6 and the second pusher head 12 makes the doctor more convenient and labor-saving when operating.

[0062] Embodiment 4:

[0063] As attached Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the difference from the above embodiment is that the positioning guide wire 2 and the capsulorhexis guide wire 9 are both made of memory metal materials.

[0064] The sleeve 1, the auxiliary tube 5, the limit block 3, the adjusting rod 4, the capsulorhexis tube 10, the capsulorhexis rod 11, the first pusher head 6 and the second pusher head 12 are all made of plastic.

[0065] The elastic guide wire 8 and the connecting block are both made of thermoplastic elastomer material.

[0066] The specific implementation process is as follows:

[0067] The positioning guide wire 2 and the capsulorhexis guide wire 9 are bent during multiple adjustments, sliding and extension, but since the memory metal material has good recovery and adaptability, the positioning guide wire 2 and the capsulorhexis guide wire 9 can return to their initial state without plastic deformation; therefore, during the use of the positioning guide wire 2 and the capsulorhexis guide wire 9, they can adapt well to the deformation occurring during the adjustment process.

[0068] Plastic materials are lighter than traditional materials such as metal, which makes the entire surgical instrument lighter during operation, reduces the physical burden on doctors, and improves the flexibility and comfort of surgery. At the same time, the production cost of plastic materials is relatively low. Using plastic to make surgical instruments can significantly reduce manufacturing costs, thereby reducing medical costs and benefiting patients.

[0069] Thermoplastic elastomer material has good foldability and elasticity, so that the elastic guide wire 8 can be well folded and contracted when contracted, and can be well unfolded by utilizing its elasticity when unfolded. At the same time, the thermoplastic elastomer material has good biocompatibility, which can reduce the harm to the patient's eyes.

[0070] The present invention effectively reduces the cost of medical devices by improving various materials, thereby reducing the treatment cost of patients and improving the medical experience of patients.

[0071] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A retractable and foldable cataract capsulorhexis aid, characterized in that: The invention comprises a sleeve (1), wherein an auxiliary component for assisting cataract capsulorhexis surgery is arranged inside the sleeve (1); The auxiliary component comprises an auxiliary tube (5), the auxiliary tube (5) is fixedly connected to the inside of the sleeve (1), the top of the auxiliary tube (5) is fixedly connected to a limit block (3), the limit block (3) is located outside the sleeve (1), an adjustment rod (4) is slidably connected inside the auxiliary tube (5), one end of the adjustment rod (4) close to the limit block (3) is fixedly connected to a positioning guide wire (2), one end of the positioning guide wire (2) away from the adjustment rod (4) obliquely penetrates the side wall of the limit block (3) from the side of the limit block (3) close to the auxiliary tube (5), and one end of the positioning guide wire (2) away from the adjustment rod (4) is fixedly connected to the side wall of the limit ring away from the penetration point.

2. The telescopic and foldable cataract capsulorhexis aid according to claim 1, characterized in that: A capsulotomy assembly for cataract capsulotomy is also provided in the sleeve (1), the capsulotomy assembly comprising a capsulotomy tube (10), a capsulotomy rod (11) is slidably connected in the capsulotomy tube (10), one end of the capsulotomy rod (11) is fixedly connected to a plurality of capsulotomy guide wires (9), one end of the capsulotomy guide wires (9) away from the capsulotomy rod (11) is fixedly connected to an arc-shaped capsulotomy scraper (7), and an elastic connection assembly for unfolding the capsulotomy guide wires (9) is provided between adjacent capsulotomy guide wires (9).

3. The telescopic and foldable cataract capsulorhexis aid according to claim 2, characterized in that: One end of the adjusting rod (4) away from the limiting block (3) is fixedly connected to a first pushing head (6).

4. The telescopic and foldable cataract capsulorhexis aid according to claim 3, characterized in that: One end of the capsulorhexis rod (11) away from the capsulorhexis guide wire (9) is fixedly connected to a second pusher head (12).

5. The telescopic and foldable cataract capsulorhexis aid according to claim 4, characterized in that: The first pusher head (6) and the second pusher head (12) are dyed with different colors.

6. The telescopic and foldable cataract capsulorhexis aid according to claim 5, characterized in that: The elastic connection assembly comprises a plurality of elastic guide wires (8) and connection blocks. The elastic guide wires (8) are fixedly connected to adjacent connection blocks. The connection blocks are fixedly connected to the capsulorhexis guide wires (9) adjacent to the elastic guide wires (8) on the sides away from the elastic guide wires (8). The elastic guide wires (8) are all spiral-shaped.

7. The telescopic and foldable cataract capsulorhexis aid according to claim 6, characterized in that: The positioning guide wire (2) and the capsulorhexis guide wire (9) are both made of memory metal materials.

8. The telescopic and foldable cataract capsulorhexis aid according to claim 7, characterized in that: The sleeve (1), the auxiliary tube (5), the limit block (3), the adjusting rod (4), the capsulorhexis tube (10), the capsulorhexis rod (11), the first pusher head (6) and the second pusher head (12) are all made of plastic.

9. The telescopic and foldable cataract capsulorhexis aid according to claim 8, characterized in that: The elastic guide wire (8) and the connecting block are both made of thermoplastic elastomer material.

10. The telescopic and foldable cataract capsulorhexis aid according to claim 9, characterized in that: The positioning guide wires (2) are connected end to end to form a positioning ring, and the maximum diameter of the positioning ring is 5.5 mm.

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