Anterior capsulotomy guiding device for cataract surgery and using method

Abstract

The invention discloses an anterior capsulotomy guiding device for cataract surgery and a using method, and belongs to the technical field of medical instruments for cataract surgery. The device comprises a handle, a connecting rod, a cylinder clamping seat, an auxiliary positioning ring and a replaceable marking assembly, the handle is fixed with the bent connecting rod, the connecting rod is connected with the cylinder clamping seat, the auxiliary positioning ring is arranged in the cylinder clamping seat, the lower end of the cylinder clamping seat is detachably connected with the replaceable marking assembly, and the axes of all the assemblies coincide. The replaceable marking assembly is assembled and disassembled through clamping of the clamping block and the L-shaped clamping groove, the sponge block in the supporting ring is fully soaked with the coloring agent, the sealing steel ball is separated from the round hole during pressing, and the annular marking tongue is stained with the coloring agent. The using method comprises the steps of coloring before an operation, positioning adjustment, adaptive replacement and holding operation. Accurate positioning is achieved through the auxiliary positioning ring, the annular marking tongue guides standard capsulorhexis, the operation difficulty is lowered, and the operation success rate is increased.

Description

Technical Field

[0001] This application relates to the field of medical device technology for cataract surgery, specifically to an anterior capsulotomy guide device for cataract surgery and its usage method. Background Technology

[0002] Cataracts are a common cause of blindness, and surgery is currently the only recognized effective treatment. During cataract surgery, capsulorhexis is a crucial step. This step involves tearing away a portion of the anterior capsule of the cloudy lens to remove the lens and implant an artificial lens. The success of the capsulorhexis procedure directly determines the success or failure of the surgery and is a significant test of the surgeon's skill.

[0003] Currently, manual capsulotomy is the most common clinical procedure, requiring the implantation of the intraocular lens (IOL) into the anterior capsule through the capsulotomy opening. Because the IOL is a perfectly round shape and needs to be implanted in the center of the anterior capsule, precise control over the shape, size, and position of the capsulotomy opening is extremely crucial, making manual capsulotomy quite challenging. Surgeons rely solely on their experience; insufficient experience or poor technique can easily result in irregularities in the shape, size, or position of the capsulotomy opening, affecting subsequent IOL implantation, increasing the difficulty, and significantly reducing the success rate. Therefore, there is an urgent need for a device that can assist surgeons in precisely performing the anterior capsulotomy. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide an anterior capsulotomy guide device and its usage method for cataract surgery, so as to solve the problems mentioned in the background art.

[0005] According to one aspect of this application, an anterior capsulotomy guide device for cataract surgery includes a handle, a connecting rod, a cylindrical holder, an auxiliary positioning ring, and a replaceable marking assembly. One end of the handle is fixedly connected to one end of the connecting rod, the connecting rod having a bent structure, and the other end of the connecting rod is fixedly connected to the outer wall of the cylindrical holder. An auxiliary positioning ring is disposed inside the cylindrical holder, and a replaceable marking assembly is detachably connected to the lower end of the cylindrical holder. The axis of the replaceable marking assembly, the axis of the cylindrical holder, and the axis of the auxiliary positioning ring coincide.

[0006] Preferably, the replaceable marking assembly includes a connecting ring, support rods, a supporting ring, sealing steel balls, a sponge block, an annular retaining seat, and an annular marking tongue. Two retaining blocks are symmetrically fixed on the outer wall of the connecting ring. An L-shaped slot is symmetrically formed through the side wall of the cylindrical retaining seat. The vertical portion of the L-shaped slot is perpendicular to and connects to the lower side of the cylindrical retaining seat. The horizontal portion of the L-shaped slot is parallel to the lower side of the cylindrical retaining seat. The width of the vertical portion of the L-shaped slot matches the width of the retaining block, and the width of the horizontal portion matches the thickness of the retaining block. The connecting ring is fixedly connected to the cylindrical retaining seat through the engaging connection of the retaining blocks and the L-shaped slot. The lower end of the connecting ring is fixedly connected to the upper end of multiple support rods. The multiple support rods are evenly and equidistantly distributed along the circumference of the connecting ring, and each support rod extends obliquely downwards towards the axis of the connecting ring. The lower end of each support rod is connected to the supporting ring. The outer wall of the support ring is fixedly connected. The support ring has a filling cavity inside, and the upper end of the filling cavity is open. The support ring has a plurality of circular holes evenly spaced along its circumference on the bottom surface of the filling cavity. A sealing steel ball is provided at each of the circular holes in the filling cavity. The lower outer wall of each sealing steel ball is in sealing contact with the edge of its corresponding circular hole, and the lower vertex of each sealing steel ball extends beyond its corresponding circular hole. The filling cavity is filled with a sponge block soaked in dye, and the sponge block is in contact with the sealing steel ball. An annular cover plate is provided at the upper end of the support ring at the upper opening of the filling cavity. An annular bracket is fixedly provided at the lower end of the support ring. The annular bracket covers the outer periphery of the exposed part of the sealing steel ball. An annular marking tongue is fixedly engaged in the annular bracket. The upper end of the annular marking tongue is in contact with the exposed part of the sealing steel ball, and the lower end of the annular marking tongue extends beyond the lower end of the annular bracket.

[0007] Preferably, the axes of the cylindrical holder, the auxiliary positioning ring, the connecting ring, the support ring, the annular holder, and the annular marking tongue coincide with each other.

[0008] Preferably, a limiting protrusion is fixedly provided on the bottom of the card block along the radial direction of the connecting ring, and a limiting groove is provided on the bottom of the horizontal part of the L-shaped card slot along the radial direction of the cylindrical card seat, and the shape and size of the limiting protrusion are adapted to the shape and size of the limiting groove.

[0009] Preferably, the auxiliary positioning ring is located at a lower position inside the cylindrical holder. The outer wall of the auxiliary positioning ring is fixedly connected to the lower ends of a plurality of fixed bent rods. The plurality of fixed bent rods are evenly and equidistantly distributed along the circumference of the auxiliary positioning ring. The upper end of each fixed bent rod is fixedly connected to the upper part of the inner sidewall of the cylindrical holder. The auxiliary positioning ring is located above the support ring, and the diameter of the auxiliary positioning ring is smaller than the diameter of the support ring.

[0010] Preferably, the bending angle of the connecting rod is 100°~120°.

[0011] Preferably, the upper side wall of the handle body is provided with anti-slip grooves, and the lower side wall of the handle body is provided with anti-slip textures.

[0012] A method for using an anterior capsulotomy guiding device for cataract surgery includes the following steps: Step 1, Preoperative preparation: The anterior capsulotomy guide device for cataract surgery is repeatedly pressed on a sterile cotton cloth, causing the annular marking tongue to continuously push against the sealing steel ball, separating the sealing steel ball from the round hole to create a gap. The sealing steel ball squeezes the sponge block soaked in dye, causing the dye to seep out from the gap and stain the annular marking tongue, thus completing the coloring of the annular marking tongue for subsequent marking of the capsulotomy position; Step 2, Positioning Adjustment: During the surgery, the doctor observes whether the center of the auxiliary positioning ring corresponds to the patient's pupil. Based on the observation results, the position of the support ring is finely adjusted to achieve precise positioning of the patient's capsulorhexis position. Step 3: Adaptation and Replacement: Based on the different eye conditions of different patients, the replaceable marking component is disassembled and assembled by the cooperation of the card block and the L-shaped card slot to achieve the adaptation and replacement of the replaceable marking component; Step 4, Handling Operation: When marking the surgical area, the doctor holds the lower part of the handle, using the anti-slip texture to increase grip stability; when picking up or adjusting the device, the doctor holds the upper part of the handle, using the anti-slip groove to improve grip comfort and ease of operation.

[0013] Preferably, the dye is 2% trypan blue, and the annular marking tongue is made of carbon fiber.

[0014] The advantages of this application compared to existing technologies are as follows: The anterior capsulotomy guidance device for cataract surgery provided by this application, through the setting of an auxiliary positioning ring, can help doctors quickly and accurately determine the center position of the capsulotomy, ensuring that the capsulotomy opening is located in the middle of the anterior capsule, solving the problem of inaccurate capsulotomy position control in existing technologies, and providing favorable conditions for subsequent intraocular lens implantation; the replaceable marking component can leave a standardized ring mark on the patient's anterior capsule through a ring marking tongue, guiding the doctor to perform capsulotomy along the mark, effectively ensuring that the shape and size of the capsulotomy opening are regular and uniform, reducing the difficulty of the capsulotomy operation. This design improves surgical success rates and makes it easier for less experienced doctors to master. The replaceable marking components use a snap-fit ​​connection between the blocks and L-shaped slots, along with the limiting protrusions and grooves, enabling convenient and stable assembly and disassembly. Adaptive components can be replaced according to different patients' eye conditions, enhancing the device's versatility. The connecting rod features a 100- to 120-degree bending angle design, which is ergonomic and effectively reduces the operating lever arm. The anti-slip grooves and textures on the handle are adapted to different operating scenarios, improving grip stability and comfort, and facilitating doctor operation. Attached Figure Description

[0015] Figure 1 This is a perspective view of an anterior capsulotomy guide device for cataract surgery according to an embodiment of this application.

[0016] Figure 2 This is a partial perspective view (1) of an anterior capsulotomy guide device for cataract surgery according to an embodiment of this application.

[0017] Figure 3 This is a cross-sectional view of an anterior capsulotomy guide device for cataract surgery according to an embodiment of this application.

[0018] Figure 4 This is a bottom view structural diagram of an anterior capsulotomy guide device for cataract surgery according to an embodiment of this application.

[0019] Figure 5 This is a three-dimensional exploded view of an anterior capsulotomy guide device for cataract surgery according to an embodiment of this application.

[0020] Figure 6 This is a partial perspective view (2) of an anterior capsulotomy guide device for cataract surgery according to an embodiment of this application.

[0021] Reference numerals: 1. Handle; 2. Connecting rod; 3. Cylindrical seat; 301. L-shaped groove; 3011. Limiting groove; 302. Fixing bent rod; 4. Auxiliary positioning ring; 5. Replaceable marking assembly; 501. Connecting ring; 502. Support rod; 503. Support ring; 5031. Filling cavity; 504. Sealing steel ball; 505. Sponge block; 506. Annular seat; 507. Annular marking tongue; 508. Locking block; 5081. Limiting protrusion; 509. Annular cover plate; 101. Anti-slip groove; 102. Anti-slip texture. Detailed Implementation

[0022] To make the content of this application easier to understand, the appendices in the embodiments of this application will be described below. Figure 1-6 The technical solutions in the embodiments of this application will be clearly and completely described. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to the appendix. Figure 3 In the context of direction, the terms "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0023] like Figures 1-6 As shown, an anterior capsulotomy guide device for cataract surgery includes a handle 1, a connecting rod 2, a cylindrical holder 3, an auxiliary positioning ring 4, and a replaceable marking assembly 5. One end of the handle 1 is fixedly connected to one end of the connecting rod 2. The connection method can be welding or integral molding to ensure that the connection strength meets the requirements of surgical operation. The connecting rod 2 has a bent structure with a bending angle set at 100°~120°. This angle range conforms to ergonomic design, which can effectively reduce the operating lever arm and improve the stability and convenience of the doctor's operation. The other end of the connecting rod 2 is fixedly connected to the outer wall of the cylindrical holder 3. The connection method is preferably bolted or welded to ensure the connection is firm.

[0024] An auxiliary positioning ring 4 is provided inside the cylindrical holder 3. The auxiliary positioning ring 4 is used for precise positioning of the capsulorhexis position. It is located in a lower position inside the cylindrical holder 3 for easy observation and positioning by the doctor. The outer wall of the auxiliary positioning ring 4 is fixedly connected to the lower ends of multiple fixed bent rods 302. The multiple fixed bent rods 302 are evenly and equidistantly distributed along the circumference of the auxiliary positioning ring 4. The upper end of each fixed bent rod 302 is fixedly connected to the upper part of the inner wall of the cylindrical holder 3. The fixed bent rods 302 ensure stable fixation of the auxiliary positioning ring 4 within the cylindrical holder 3 without obstructing the field of vision. The auxiliary positioning ring 4 is located above the support ring 503, and the diameter of the auxiliary positioning ring 4 is smaller than the diameter of the support ring 503, making it easier for the doctor to observe the patient's pupil position through the auxiliary positioning ring 4, thus improving positioning accuracy.

[0025] The lower end of the cylindrical holder 3 is detachably connected to a replaceable marking component 5. The axis of the replaceable marking component 5, the axis of the cylindrical holder 3, and the axis of the auxiliary positioning ring 4 are coincident, ensuring that the marking position is consistent with the positioning center and avoiding offset errors.

[0026] The replaceable marking assembly 5 includes a connecting ring 501, a support rod 502, a support ring 503, a sealing steel ball 504, a sponge block 505, an annular retainer 506, and an annular marking tongue 507. Two retaining blocks 508 are symmetrically fixed on the outer wall of the connecting ring 501. An L-shaped groove 301 is symmetrically formed through the side wall of the cylindrical retainer 3. The vertical portion of the L-shaped groove 301 is perpendicular to and connected to the lower side of the cylindrical retainer 3, while the horizontal portion is parallel to the lower side of the cylindrical retainer 3. The width of the vertical portion of the L-shaped groove 301 matches the width of the retaining block 508, and the width of the horizontal portion matches the thickness of the retaining block 508. The connecting ring 501 is fixedly connected to the cylindrical retainer 3 through the engaging connection of the retaining blocks 508 and the L-shaped groove 301, enabling convenient assembly and disassembly of the replaceable marking assembly 5. To improve connection stability, a limiting protrusion 5081 is fixedly provided on the radial side of the connecting ring 501 at the bottom upper edge of the card block 508. A limiting groove 3011 is provided on the radial side of the cylindrical card seat 3 at the bottom upper edge of the horizontal part of the L-shaped card groove 301. The shape and size of the limiting protrusion 5081 are adapted to the shape and size of the limiting groove 3011. When locked, the limiting protrusion 5081 is embedded in the limiting groove 3011 to prevent the replaceable marking component 5 from rotating or falling off during the operation.

[0027] The lower end of the connecting ring 501 is fixedly connected to the upper ends of multiple support rods 502. The support rods 502 are evenly and equidistantly distributed along the circumference of the connecting ring 501, and each support rod 502 extends obliquely downwards towards the axis of the connecting ring 501. The support rods 502 achieve a stable connection between the connecting ring 501 and the support ring 503, while also providing stable support for the support ring 503. The lower end of each support rod 502 is fixedly connected to the outer wall of the support ring 503 by welding to ensure connection strength.

[0028] The support ring 503 has a filling cavity 5031 inside, with an opening at the upper end for holding the sponge block 505. Multiple circular holes are evenly spaced along the circumference of the bottom surface of the support ring 503 within the filling cavity 5031. A sealing steel ball 504 is positioned at each circular hole within the filling cavity 5031. The lower outer wall of each sealing steel ball 504 is in sealing contact with the edge of its corresponding circular hole, thus sealing the filling cavity 5031 and preventing dye leakage. The lower apex of each sealing steel ball 504 extends beyond its corresponding circular hole, facilitating contact with the annular marking tongue 507. The filling cavity 5031 is filled with sponge blocks 505 soaked in dye. The sponge blocks 505 are in contact with the sealing steel balls 504, storing the dye and allowing it to seep out under pressure. An annular cover plate 509 is provided at the upper end of the support ring 503 at the upper opening of the filling cavity 5031. The annular cover plate 509 and the support ring 503 can be connected by threads or snap-fit ​​to seal the filling cavity 5031 and prevent the sponge block 505 from falling off or the dye from evaporating.

[0029] A ring-shaped retainer 506 is fixedly mounted on the lower end of the support ring 503. The ring-shaped retainer 506 covers the outer periphery of the exposed portion of the sealing steel ball 504, protecting the sealing steel ball 504 and fixing the ring-shaped marking tongue 507. The ring-shaped marking tongue 507 is fixedly engaged within the ring-shaped retainer 506. The upper end of the ring-shaped marking tongue 507 contacts the exposed portion of the sealing steel ball 504, and the lower end of the ring-shaped marking tongue 507 extends beyond the lower end of the ring-shaped retainer 506, facilitating contact with the patient's anterior capsule and leaving a mark. The axes of the cylindrical retainer 3, the auxiliary positioning ring 4, the connecting ring 501, the support ring 503, the ring-shaped retainer 506, and the ring-shaped marking tongue 507 are coincident, ensuring coaxiality of all components and further improving marking accuracy.

[0030] The upper side wall of the handle 1 has an anti-slip groove 101. The anti-slip groove 101 can be multiple and evenly distributed around the handle 1. It is used to improve the grip comfort and anti-slip performance when the doctor picks up or adjusts the device. The lower side wall of the handle 1 has an anti-slip texture 102. The anti-slip texture 102 can be a diamond pattern or a stripe pattern. It is used to increase the friction between the hand and the handle 1 when making surgical marks, improve grip stability, and prevent the device from sliding during operation.

[0031] The present invention also provides a method of using the above-described guiding device, comprising the following steps: Step 1: Preoperative Preparation: The anterior capsulotomy guide device for cataract surgery is repeatedly pressed onto a sterile cotton cloth. The pressure should be sufficient to move the sealing steel ball 504 without damaging the device. This causes the annular marking tongue 507 to continuously push against the sealing steel ball 504, creating a gap between the sealing steel ball 504 and the circular hole. The sealing steel ball 504 then squeezes the sponge block 505, which is soaked in dye, allowing the dye to seep out from the gap and stain the annular marking tongue 507, thus completing the staining of the annular marking tongue 507 for subsequent marking of the capsulotomy site. The dye used is 2% trypan blue, which provides clear staining and is harmless to the human body. The annular marking tongue 507 is made of carbon fiber, which has good adsorption properties, stably adsorbs the dye, is harmless to the human body, and has suitable structural strength, making it resistant to damage.

[0032] Step 2, Positioning Adjustment: During the operation, the doctor observes with a surgical microscope whether the center of the auxiliary positioning ring 4 corresponds to the patient's pupil. If they do not correspond, the position of the device is slightly adjusted according to the observation results, and the position of the support ring 503 is finely adjusted until the center of the auxiliary positioning ring 4 corresponds completely to the pupil, so as to achieve precise positioning of the patient's capsulorhexis position.

[0033] Step 3: Adaptation and Replacement: Based on the different eye conditions of each patient, such as eyeball size and anterior capsule area, the replaceable marking component 5 can be disassembled and replaced by engaging the locking block 508 with the L-shaped slot 301. During replacement, first rotate the connecting ring 501 clockwise or counterclockwise to move the locking block 508 from the horizontal part to the vertical part of the L-shaped slot 301, then pull the connecting ring 501 downwards to complete disassembly. During installation, align the locking block 508 with the vertical part of the L-shaped slot 301 and insert it. Then rotate the connecting ring 501 in the opposite direction to move the locking block 508 into the horizontal part of the L-shaped slot 301 until the limiting protrusion 5081 engages with the limiting groove 3011, completing the fixation.

[0034] Step 4, Handling Operation: When marking the surgical area, the doctor holds the lower part of the handle 1, and the anti-slip texture 102 increases the stability of the grip and prevents the device from sliding during the operation; when picking up or adjusting the device, the doctor holds the upper part of the handle 1, and the anti-slip groove 101 improves the grip comfort and ease of operation. After marking is completed, the doctor can perform the capsule tearing operation along the circular marking.

[0035] The above embodiments are only used to illustrate the technical solutions of the embodiments of this application, and are not intended to limit them. Although the embodiments of this application have been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features, without departing from the spirit and scope defined by the claims of this application.

Claims

1. An anterior capsulotomy guide for cataract surgery, characterized by, Including handle (1), connecting rod (2), cylinder clamping seat (3), auxiliary positioning ring (4) and replaceable marking assembly (5), one end of handle (1) is fixedly connected with one end of connecting rod (2), connecting rod (2) is a bending structure, the other end of connecting rod (2) is fixedly connected with the outer side wall of cylinder clamping seat (3), auxiliary positioning ring (4) is arranged in cylinder clamping seat (3), replaceable marking assembly (5) is detachably connected with the lower end of cylinder clamping seat (3), the axis of replaceable marking assembly (5), the axis of cylinder clamping seat (3) and the axis of auxiliary positioning ring (4) coincide.

2. The anterior capsulotomy guide for cataract surgery of claim 1, wherein, The replaceable marking assembly (5) comprises a connecting ring (501), a support rod (502), a support ring (503), a sealing steel ball (504), a sponge block (505), a ring-shaped clamping seat (506) and a ring-shaped marking tongue (507), two clamping blocks (508) are symmetrically arranged on the outer side wall of the connecting ring (501), an L-shaped clamping groove (301) is symmetrically and through arranged on the side wall of the cylindrical clamping seat (3), the vertical part of the L-shaped clamping groove (301) is perpendicular to the lower side of the cylindrical clamping seat (3), the horizontal part of the L-shaped clamping groove (301) is arranged in parallel to the lower side of the cylindrical clamping seat (3), the groove width of the vertical part of the L-shaped opening slot is matched with the width of the clamping block (508), the groove width of the horizontal part of the L-shaped opening slot is matched with the thickness of the clamping block (508), the connecting ring (501) is fixedly connected with the cylindrical clamping seat (3) through the clamping connection of the clamping block (508) and the L-shaped clamping groove (301), the lower end of the connecting ring (501) is fixedly connected with the upper end of a plurality of support rods (502), the plurality of support rods (502) are uniformly and equidistantly distributed along the circumference of the connecting ring (501), and each support rod (502) is arranged to be inclined downward towards the axis of the connecting ring (501), the lower end of each support rod (502) is fixedly connected with the outer side wall of a support ring (503), a filling cavity (5031) is arranged in the support ring (503), the upper end of the filling cavity (5031) is open, a plurality of circular holes are through arranged on the inner bottom surface of the filling cavity (5031) along the circumference thereof, a sealing steel ball (504) is arranged at the position of each circular hole in the filling cavity (5031), the lower outer side wall of each sealing steel ball (504) is in sealing contact with the edge of the corresponding circular hole, and the lower vertex of each sealing steel ball (504) extends beyond the corresponding circular hole, a sponge block (505) soaked with a dyeing agent is filled in the filling cavity (5031), the sponge block (505) is in contact with the sealing steel ball (504), a ring-shaped cover plate (509) is arranged at the upper end opening of the filling cavity (5031) on the upper end of the support ring (503), a ring-shaped clamping seat (506) is fixedly arranged on the lower end of the support ring (503), the ring-shaped clamping seat (506) is arranged on the outer circumferential side of the exposed part of the sealing steel ball (504), a ring-shaped marking tongue (507) is fixedly clamped in the ring-shaped clamping seat (506), the upper end of the ring-shaped marking tongue (507) is in contact with the exposed part of the sealing steel ball (504), and the lower end of the ring-shaped marking tongue (507) exceeds the lower end of the ring-shaped clamping seat (506).

3. An anterior capsulotomy guide for cataract surgery according to claim 2, wherein The axis of the cylindrical clamping seat (3), the axis of the auxiliary positioning ring (4), the axis of the connecting ring (501), the axis of the supporting ring (503), the axis of the annular clamping seat (506), and the axis of the annular marking tongue (507) coincide with each other.

4. The anterior capsulotomy guide of claim 3, wherein the anterior capsulotomy guide is configured to be positioned on the cornea of the eye. A limiting protrusion (5081) is arranged on the bottom of the clamping block (508) along the radial direction of the connecting ring (501), and a limiting groove (3011) is arranged on the bottom of the horizontal part of the L-shaped clamping groove (301) along the radial direction of the cylindrical clamping seat (3), and the shape and size of the limiting protrusion (5081) are matched with the shape and size of the limiting groove (3011).

5. An anterior capsulotomy guide for cataract surgery according to claim 4, wherein The auxiliary positioning ring (4) is arranged at a lower position inside the cylindrical clamping seat (3), and the outer side wall of the auxiliary positioning ring (4) is fixedly connected with the lower ends of a plurality of fixed bent rods (302), and the plurality of fixed bent rods (302) are uniformly and equidistantly distributed along the circumferential direction of the auxiliary positioning ring (4), and the upper end of each fixed bent rod (302) is fixedly connected with the upper part of the inner side wall of the cylindrical clamping seat (3), and the auxiliary positioning ring (4) is arranged at a position above the supporting ring (503), and the diameter size of the auxiliary positioning ring (4) is smaller than the diameter size of the supporting ring (503).

6. The anterior capsulotomy guide of claim 1, wherein, The bending angle of the connecting rod (2) is 100°-120°.

7. The anterior capsulotomy guide of claim 1, wherein, A slip-resistant groove (101) is arranged on the side wall of the upper part of the handle (1), and a slip-resistant pattern (102) is arranged on the side wall of the lower part of the handle (1).

8. A method of using the anterior capsulotomy guide device for cataract surgery according to any one of claims 1-7, characterized in that, The method comprises the following steps: Step one, preoperative preparation: repeatedly press the anterior capsule incision guiding device for cataract surgery on sterile cotton cloth, so that the annular marking tongue (507) constantly pushes the sealed steel ball (504) to separate the sealed steel ball (504) from the circular hole to form a gap, and the sealed steel ball (504) extrudes the sponge block (505) soaked with the dyeing agent, so that the dyeing agent seeps out of the gap and stains the annular marking tongue (507), completing the coloring of the annular marking tongue (507) to mark the position of capsulorhexis in the subsequent operation; Step two, positioning adjustment: during the operation, the doctor observes whether the ring center of the auxiliary positioning ring (4) is in the corresponding position with the pupil of the patient, and adjusts the position of the supporting ring (503) according to the observation result to realize the accurate positioning of the capsulorhexis position of the patient; Step three, adaptive replacement: according to the eye conditions of different patients, the replaceable marking assembly (5) is disassembled and assembled through the cooperation of the clamping block (508) and the L-shaped clamping groove (301) to realize the adaptive replacement of the replaceable marking assembly (5); Step four, holding operation: when marking the operation, the doctor holds the lower part of the handle (1), and the slip-resistant pattern (102) increases the holding stability; when taking or adjusting the device, the doctor holds the upper part of the handle (1), and the slip-resistant groove (101) improves the holding comfort and operation convenience.

9. The method of use of claim 8, wherein, The dyeing agent is 2% trypan blue, and the annular marking tongue (507) is made of carbon fiber material.

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