Cornea anastomat

Abstract

The invention provides a cornea anastomat, relates to the technical field of medical equipment, and solves the technical problem of high occurrence rate of iatrogenic astigmatism of a patient due to different needle inlet and outlet distances, different distances between adjacent needles and different forces in manual suture in the prior art. The cornea anastomat comprises a cylinder body, the positioning mechanism is used for limiting and positioning cornea edges, needing to be sutured, on the eyes of the patient; the suturing mechanism is used for being matched with the positioning mechanism to suture the cornea needing to be sutured and the cornea on the eyes of the patient; the sewing mechanism comprises at least two thread box assemblies mounted on the cylinder body and puncturing assemblies corresponding to the thread box assemblies; the anastomosis nails in the thread box assembly are pushed out to the positioning mechanism through cooperation with the thread box assembly, so that the cornea needing to be sutured and the cornea on the eyes of a patient are subjected to cornea opposite side positioning suturing. The consistency and symmetry of each sewing operation are ensured, and the iatrogenic astigmatism risk caused by asymmetric sewing is effectively reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and more particularly to a corneal stapler. Background Art

[0002] Corneal surgery is a surgical procedure aimed at improving vision, treating eye diseases, or repairing injuries. This surgery can involve a variety of different techniques and methods, including but not limited to laser surgery (such as LASIK), corneal transplantation, and various types of corneal reshaping surgeries. With the progress of ophthalmology, corneal surgery has become an effective means of treating many eye diseases.

[0003] However, during corneal surgery, especially in cases involving corneal suturing, doctors often face a series of challenges. Although traditional manual suturing techniques can meet the surgical needs to a certain extent, their limitations are obvious. For example, iatrogenic astigmatism is a common problem during manual suturing, which is usually caused by the following factors: Suturing symmetry: Imprecise manual operation may lead to an asymmetric distribution of sutures, thereby affecting the postoperative corneal shape and increasing the risk of astigmatism.

[0004] The distance of needle entry and exit and the spacing between adjacent needles: If these parameters are not properly controlled, it will directly affect the suturing quality and result in poor postoperative visual effects.

[0005] The depth of the suture needle: Too deep or too shallow suture needles not only affect wound healing but may also lead to postoperative complications such as infection or poor healing.

[0006] In summary, there are problems in current manual suturing, such as a high incidence of iatrogenic astigmatism, low suturing precision, and poor postoperative recovery. Therefore, it is necessary to improve the existing technology according to the needs of eye surgery to improve surgical accuracy, reduce postoperative complications, and optimize the visual recovery effect of patients. Summary of the Invention

[0007] The purpose of the present invention is to provide a corneal stapler to solve the technical problem in the prior art that the distances of needle entry and exit and the spacing between adjacent needles during manual suturing are inconsistent, as well as the inconsistent force, resulting in a high incidence of iatrogenic astigmatism in patients. The many technical effects that can be produced by the preferred technical solutions provided by the present invention are described in detail below.

[0008] To achieve the above purpose, the present invention provides the following technical solutions: A corneal stapler, comprising: A cylinder, arranged in a cylindrical shape, with one end for placing the cornea to be sutured and the other end for holding. The positioning mechanism is fixedly installed at one end of the cylinder body for placing the cornea, and is used to limit and position the edge of the cornea on the patient's eye that needs to be sutured. The suture mechanism is fixedly installed at one end of the cylinder body for placing the cornea, and is used to cooperate with the positioning mechanism to suture the cornea to be sutured and the cornea on the patient's eye to each other. The suture mechanism includes at least two cartridge assemblies installed on the cylinder body and a puncture assembly corresponding to each cartridge assembly. At least two of the cartridge assemblies are evenly arranged along the circumferential direction of the cylinder body, and the cartridge assemblies store anastomosis nails for suturing the cornea. The puncture assembly cooperates with the cartridge assembly to push the anastomosis nails in the cartridge assembly to the positioning mechanism, so as to complete the positioning suture of the cornea on the opposite side of the cornea to be sutured and the cornea on the patient's eye.

[0009] Furthermore, the cartridge assembly includes a cartridge holder detachably connected to the side wall of the cylinder body. A receiving groove with an opening on the side wall is formed on the side wall of the cylinder body. The cartridge holder is clamped in the receiving groove. One end of the cartridge holder is close to the end of the cylinder body for placing the cornea, and a receiving hole for receiving the anastomosis nails is formed at this end of the cartridge holder. The opening direction of the receiving hole is perpendicular to the axial direction of the cylinder body when the cartridge holder is installed on the cylinder body. The puncture mechanism sutures by pushing the anastomosis nails in the receiving hole and sequentially passing through the cornea to be sutured and the patient's cornea.

[0010] Furthermore, the cartridge assembly further includes a magnet fixedly installed on the side wall of the receiving groove. A card slot for cooperating with the magnet is formed on the cartridge holder, and an iron sheet is fixedly installed in the card slot. When the cartridge holder is clamped in the receiving groove, the magnet is embedded in the card slot to generate magnetic attraction fixation with the patch.

[0011] Furthermore, the puncture assembly includes a puncture rod arranged in the radial direction of the cylinder body. A sliding groove is formed on the circumferential side wall of one end of the cylinder body for placing the cornea to be sutured in the radial direction thereof. When the cartridge holder is clamped in the receiving groove, the receiving hole corresponds to the sliding groove. The puncture rod is slidably arranged in the sliding groove, and slides from the sliding groove into the receiving hole during the suture process to push the anastomosis nails in the receiving hole out for suturing. The suture mechanism further includes a pushing assembly for pushing the puncture rod to move.

[0012] Furthermore, A groove is formed at one end of the puncture rod for contacting the anastomosis nail, and the groove is used for positioning the suture nail to be embedded in the groove.

[0013] Furthermore, the pushing assembly includes a pushing shaft sliding along the axial direction of the cylinder and a pushing block for pushing the puncture rod to move; The center of the cylinder is provided with an inner cavity for driving the shaft to slide; The cylinder is provided with a push groove for pushing the block to slide along its radial direction, the push groove is connected to the inner cavity in the radial direction of the cylinder, and the push groove is connected to the slide groove in the axial direction of the cylinder; One end of the puncture rod is fixedly connected to the push block, and the other end of the puncture rod extends toward the outer peripheral side wall of the cylinder; One end of the pushing block away from the puncture rod extends out into the inner cavity through the pushing groove; The driving shaft slides in the inner cavity to squeeze the driving block to drive the puncture rod to slide out; The pushing assembly is also provided with a resetting component for resetting the puncture rod.

[0014] Further, the reset component includes a reset spring; One end of the return spring is fixedly connected to the side wall opposite to the connecting point between the push groove and the inner cavity, and the other end of the return spring is fixedly connected to the push block; When the puncture rod is extended, the reset spring is squeezed, and when the push shaft does not squeeze the push block, the push block and the puncture rod are reset under the action of the spring, and the push block is squeezed to abut against the side wall of the slide groove on the outer circumference of the inner cylinder.

[0015] Furthermore, one end of the moving shaft for contacting the pushing block is provided with a tapered end, the peripheral side wall of the tapered end is in contact with the pushing block, and the diameter of the tapered end gradually increases along the direction in which the pushing shaft squeezes the pushing block to move.

[0016] Furthermore, the pushing assembly further comprises a toggle plate and a threaded shaft, one end of the threaded shaft is sleeved on the pushing shaft, and the other end of the threaded shaft extends from the top end of the sleeve and is threadedly connected to the sleeve; The toggle plate is fixedly connected to one end of the threaded shaft away from the driving shaft; When in use, the paddle piece is pushed to drive the threaded shaft to rotate, so as to push the driving shaft to move in the axial direction of the cylinder.

[0017] Furthermore, the positioning mechanism includes a positioning sleeve and a connecting rod The positioning sleeve is sleeved on the barrel, and there is a gap between the positioning sleeve and the barrel for placing the edge of the cornea to be sutured and the edge of the patient's cornea; The connecting rod is used to be fixedly connected to the positioning sleeve and the outer side wall of the cylinder; The inner circumferential side wall of the positioning sleeve is provided with a protrusion corresponding to the cone of the staple, and the protrusion is used for radial deformation of the staple after the staple passes through the cornea, so as to increase the width of the end of the staple and prevent it from falling off.

[0018] Through a series of innovative designs, the corneal stapler of the present invention aims to solve the problems of high incidence of iatrogenic astigmatism, low suture precision, and poor postoperative recovery existing in the existing manual suture technology. The following are the main technical effects that the invention can achieve: Improve suture symmetry and precision: Since a positioning mechanism is adopted to fix the edge of the cornea, and both the thread box assembly and the puncture assembly are evenly distributed circumferentially along the cylinder, the consistency and symmetry of each suture operation are ensured, effectively reducing the risk of iatrogenic astigmatism caused by asymmetric suture.

[0019] Optimize the control of the distance of needle entry and exit and the adjacent needle spacing: Through the staples preset in each thread box assembly and their corresponding puncture assemblies, the distance of needle entry and exit and the adjacent needle spacing can be precisely controlled, ensuring a high degree of consistency in suture quality, thereby improving the postoperative visual effect.

[0020] Enhance the controllability of the suture depth: The design of the puncture assembly enables the depth of each suture to be precisely regulated, avoiding the problems of too deep or too shallow that may occur in traditional manual operations, reducing the risk of infection and other complications, and promoting good wound healing.

[0021] Reduce the operation time and complexity: The corneal stapler simplifies the surgical procedure, shortens the operation time, and at the same time reduces the degree of dependence on the skills of surgeons, enabling more patients to benefit from more standardized and efficient treatment plans.

[0022] Improve the postoperative quality of life of patients: Due to the combined effect of the above improvement measures, the postoperative recovery of patients has been significantly improved, not only reducing the incidence of postoperative complications, but also contributing to a faster recovery of normal vision and improving the overall quality of life.

[0023] In summary, through its unique structural design and technical principle, the corneal stapler provided by the present invention shows significant advantages in solving the deficiencies of traditional manual suture, bringing new solutions and development directions to the field of corneal surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 It is a schematic diagram of the overall structure provided by an embodiment of the present invention; Figure 2 It is a schematic diagram of the internal structure provided by an embodiment of the present invention; Figure 3 yes Figure 2 Enlarged view of Q in the figure; Figure 4 yes Figure 3 Enlarged view of point W in the figure.

[0026] Explanation of the reference numerals: 100, cylinder; 120, inner cavity; 130, handle; 140, receiving groove; 160, slide groove; 170, push groove; 180, positioning groove; 200, suturing mechanism; 210, push shaft; 211, tapered end; 220, threaded shaft; 230, toggle plate; 240, box frame; 241, slot; 242, iron sheet; 243, magnetic block; 244, disassembly rod; 245, receiving hole; 250, cylindrical head; 260, puncture rod; 270, push block; 280, reset spring; 300, positioning mechanism; 310, positioning sleeve; 320, connecting rod; 330, embedded groove; 340, protrusion. DETAILED DESCRIPTION

[0027] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0028] In the description of the present invention, it should be noted that, unless otherwise specified, the meaning of "multiple" is two or more; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present invention, it should also be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] The following further elaborates on this application in conjunction with the attached Figures 1-4 This application embodiment discloses a corneal stapler.

[0031] Refer to Figure 1 and Figure 2 As shown, the present invention provides a corneal stapler, including a cylinder 100, a positioning mechanism 300, and a suturing mechanism 200; The cylinder 100 is cylindrically arranged, with a concave rounded corner design at one end for stably placing the cornea to be sutured to the patient. This design not only ensures the stability of the cornea during the operation but also reduces the potential damage to the tissue. At the other end, a grip 130 is fixedly installed along the radial direction of the cylinder 100, and the grip 130 is firmly connected to the outer circumferential side wall of the cylinder 100, facilitating the user's grip and enhancing the convenience and comfort of the operation.

[0032] The positioning mechanism 300 is fixedly installed at the end of the cylinder 100 with the rounded corner. Its function is to limit and fix the cornea to be sutured and the patient's cornea, facilitating the precise positioning of the cornea during the suturing process. The suturing mechanism 200 is also installed on the cylinder 100 and is specifically used to seamlessly dock the cornea to be sutured with the patient's cornea.

[0033] Through the cooperation between the positioning mechanism 300 and the limiting mechanism, the consistency and symmetry of each suturing operation are ensured, significantly reducing the risk of iatrogenic astigmatism caused by asymmetric suturing.

[0034] Refer to Figure 3 and Figure 4 As shown, the positioning mechanism 300 includes a positioning sleeve 310 and a connecting rod 320. The positioning sleeve 310 is sleeved outside the cylinder 100, and there is a specific-sized gap between its inner wall and the outer wall of the cylinder 100 for placing the edge of the cornea to be sutured and the edge of the patient's own cornea. This design not only ensures the stability of the cornea during the operation but also avoids unnecessary pressure or damage to the tissue.

[0035] In addition, a plurality of embedding grooves 330 are formed on the inner circumferential side wall of the positioning sleeve 310. These embedding grooves 330 are evenly distributed in the circumferential direction of the positioning sleeve 310, and a conical protrusion 340 is provided in each embedding groove 330. When the anastomosis nails sequentially pass through the cornea to be sutured and the patient's own cornea, they will just abut against the embedding grooves 330 and undergo radial deformation under the action of the conical protrusions 340, increasing the width of the end of the anastomosis nail, effectively preventing the anastomosis nail from detaching from the cornea after the operation, and improving the safety and stability of the operation.

[0036] There are at least two connecting rods 320. One end of the connecting rod 320 is firmly fixed to the top of the positioning sleeve 310, and the other end is fixed to the outer circumferential side wall of the cylinder body 100, forming a stable overall structure. This multi-point support design not only enhances the mechanical strength of the entire device, but also ensures that the position of the positioning sleeve 310 remains precisely unchanged during use, ensuring that each suturing operation can achieve the best effect. The number of connecting rods 320 can be adjusted according to actual needs.

[0037] Referring to Figure 1 and Figure 2 As shown, the suturing mechanism 200 includes a wire box assembly for storing anastomosis nails, a puncturing assembly for pushing the anastomosis nails to sequentially pass through the cornea to be sutured and the patient's own cornea, and a pushing assembly for providing power to the puncturing assembly.

[0038] There are at least two wire box assemblies, and in a preferred embodiment, eight wire box assemblies are configured. These wire box assemblies are evenly distributed in the circumferential direction of the cylinder body 100. Each wire box assembly is correspondingly equipped with a puncturing assembly. This layout not only ensures that the anastomosis nails can be evenly distributed in the area to be sutured, improving the accuracy and consistency of suturing, but also shortens the operation time through multi-point synchronous operation. At the same time, the same pushing assembly provides driving force for the puncturing assembly, and the extrusion force, pushing speed, etc. borne by each gentle needle during the suturing process are all the same, thereby effectively reducing the risk of iatrogenic astigmatism caused by asymmetric suturing.

[0039] Referring to Figure 3 and Figure 4 As shown, the wire box assembly includes a magnetic block 243 and a box frame 240 detachably connected to the cylinder body 100. This design realizes the efficient loading and replacement of anastomosis nails through a clever mechanical structure, improving the convenience and flexibility of surgical operations.

[0040] An opening is provided along the length direction of the side wall of the cylinder body 100, and a receiving groove 140 is formed on the side wall. This receiving groove 140 adopts a stepped design with different levels in the radial direction of the cylinder body 100, ensuring precise fit between components. A cylinder head 250 is fixedly connected to the bottom end of the cylinder body 100. Meanwhile, a positioning groove 180 is provided on the cylinder body 100, and this positioning groove 180 is located on the end face at the bottom of the receiving groove 140 to achieve precise positioning of the cartridge holder 240. This design not only improves the assembly accuracy but also enhances the stability of the overall structure.

[0041] The magnetic block 243 is fixedly connected to one side wall of the receiving groove 140, and a card slot 241 for cooperating with the magnetic block 243 is provided at the corresponding position of the cartridge holder 240. An iron sheet 242 is fixedly installed inside the card slot 241. When it is necessary to install the cartridge holder 240 onto the cylinder body 100, just align the cylinder head 250 on the cartridge holder 240 with the positioning groove 180, and rotate the cartridge holder 240 to align the card slot 241 with the magnetic block 243. By using the magnetic force to attract the iron sheet 242, the fixation of the cartridge holder 240 can be easily completed. This magnetic attraction connection method simplifies the assembly process and improves work efficiency.

[0042] A receiving hole 245 for accommodating the anastomosis nail is provided through one end of the cartridge holder 240 close to the cylinder head 250. When the cartridge holder 240 is correctly installed on the cylinder body 100, the direction of the receiving hole 245 is consistent with the radial direction of the cylinder body 100, one end faces the axis direction of the cylinder body 100, and the other end points to the inner wall of the positioning sleeve 310 and corresponds to the gap between the positioning sleeve 310 and the cylinder body 100. This layout ensures that the anastomosis nail can accurately pass through the suture corneal tissue and finally embed into the embedding groove 330 on the positioning sleeve 310, thus achieving a stable suture effect.

[0043] In addition, for the convenience of disassembling the cartridge holder 240, a disassembly groove is provided on the outer side wall of the cartridge holder 240, and a disassembly rod 244 is hingedly installed therein. When it is necessary to remove the cartridge holder 240, just swing the disassembly rod 244 to make it perpendicular to the length direction of the cartridge holder 240, and then pull the disassembly rod 244 to easily remove the cartridge holder 240 from the cylinder body 100. This design greatly simplifies the disassembly and assembly process of the cartridge holder 240, reduces the surgical preparation time, and improves the doctor's work efficiency. The opening provided along the length direction of the side wall of the cylinder body 100 is located in the receiving groove 140 on the side wall. The receiving groove 140 is arranged in a stepped groove shape, that is, there are steps in the radial direction of the cylinder body 100. The bottom end of the cylinder body 100 is fixedly connected with a cylinder head 250. A positioning groove 180 is provided on the cylinder body 100, and the positioning groove 180 is opened on the bottom surface at the rounded corner end of the receiving groove 140 in the cylinder body 100.

[0044] Refer to Figure 3 and Figure 4As shown, the puncture assembly includes a puncture rod 260 slidably disposed along the radial direction of the cylinder 100. This design realizes the stable ejection of the staples through precise mechanical movement, ensuring the accuracy and safety of the surgical operation.

[0045] One end of the cylinder 100 near the cylinder head 250 of the cartridge holder 240 is provided with a chute 160 along its radial direction. When the cartridge holder 240 is correctly clamped in the receiving groove 140, the receiving hole 245 is opposite to and communicated with the chute 160. The puncture rod 260 is slidably installed in the chute 160 and slides along the chute 160 into the receiving hole 245 under the action of the pushing assembly during the suturing process, and finally abuts against the end of the staple, thereby ejecting the staple from the receiving hole 245 and making it pass through the cornea to be sutured and the patient's cornea in sequence. This design not only simplifies the pushing process of the staple but also improves the accuracy and efficiency of the operation.

[0046] In particular, a groove is provided on one side of the puncture rod 260 for contacting the end of the staple. When the puncture rod 260 abuts against the end of the staple, the staple is embedded in the groove, realizing the precise positioning and limitation of the staple. This structural design effectively prevents the staple from shifting or falling off during the pushing process, ensuring the smooth progress of the surgical operation and ensuring a certain pressure on the staple. In addition, the depths of the groove and the embedding groove 330 are carefully designed to ensure that they are shallow enough not to pull the staple when the device is removed, thereby avoiding secondary damage to the tissue and improving the safety of the operation.

[0047] Refer to Figure 3 and Figure 4 As shown, the pushing assembly includes a pushing block 270 corresponding to each puncture assembly and a reset member.

[0048] An inner cavity 120 is provided in the cylinder 100 along its axial direction, and a pushing groove 170 for the sliding of the pushing block 270 is provided in the cylinder 100 along its radial direction. The pushing groove 170 communicates with the inner cavity 120 in the radial direction of the cylinder 100 and communicates with the chute 160 in the axial direction of the cylinder 100, forming a stepped communication structure. This design not only optimizes the utilization of the internal space but also ensures the smooth linkage between the components, improving the accuracy and efficiency of the overall operation. The pushing block 270 is installed in the pushing groove 170, with one end extending out of the inner cavity 120 and the other end fixedly connected to the puncture rod 260, so as to drive the puncture rod 260 to slide along the chute 160 through the movement of the pushing block 270.

[0049] The reset assembly includes a reset spring 280, which is used to automatically drive the puncture rod 260 and the push block 270 back to the initial position after each suturing is completed. One end of the reset spring 280 is fixedly connected to the side wall opposite to the connection point between the push groove 170 and the inner cavity 120, and the other end is fixedly connected to the push block 270. When the puncture rod 260 is pushed forward, the reset spring 280 is compressed; when the push block 270 is no longer subjected to external force, the reset spring 280 will quickly return to its original state, so that the push block 270 and the puncture rod 260 are automatically reset. This self-reset mechanism greatly simplifies the operation process.

[0050] Specifically, when the piercing rod 260 is pushed out, the return spring 280 is squeezed and deformed, storing elastic potential energy. Once the push block 270 is no longer compressed, the return spring 280 releases the stored energy, and the push block 270 and the connected piercing rod 260 immediately return to the original position, and the push block 270 will abut against the side wall of the chute 160 facing the outer circumference of the inner cylinder. That is, at the stepped side wall formed by the chute 160 and the push groove 170, the push block 270 is set in an L shape, so as to prevent the push block 270 from popping out under the action of the return spring 280.

[0051] This process ensures that each component can be accurately returned to its initial state, avoiding operational errors caused by residual stress, and further improving the reliability and service life of the device.

[0052] The push assembly further includes a push shaft 210, a tapered end 211, a toggle piece 230 and a threaded shaft 220, which work together to achieve precise control and adjustment of the puncture assembly. The push shaft 210 is slidably arranged along the inner cavity 120 of the barrel 100 to ensure that it can move freely in the barrel 100 without deviation or jamming. The tapered end 211 is fixedly connected to the bottom end of the push shaft 210, and the tapered end 211 is designed to have a gradually increasing diameter, that is, the diameter gradually increases from the bottom to the end connected to the push shaft 210. This design allows the pressure on the push block 270 to be gradually increased through the different cross-sectional areas of the tapered end 211 when the push shaft 210 moves along the axial direction of the barrel 100, thereby achieving precise control of the advancement and retreat of the puncture rod 260. The end of the push block 270 located in the inner cavity 120 abuts against the side wall of the tapered end 211, ensuring the continuity and stability of power transmission.

[0053] One end of the threaded shaft 220 is sleeved on the driving shaft 210, and the other end passes through the top of the cylinder 100 and is threadedly connected to the cylinder 100, so that when the threaded shaft 220 rotates, the threaded shaft 220 can be axially moved relative to the cylinder 100 through threaded cooperation. This design not only simplifies the mechanical structure, but also improves the controllability and accuracy of the system. The toggle piece 230 is fixedly connected to the side wall of the outer end of the threaded shaft 220, so that the operator can manually toggle the threaded shaft 220 to rotate, thereby realizing fine adjustment of the position of the driving shaft 210.

[0054] In actual use, the operator drives the threaded shaft 220 to rotate by turning the toggle piece 230, thereby adjusting the axial position of the driving shaft 210 inside the barrel 100. As the driving shaft 210 moves, the tapered end 211 will change the degree of squeezing the driving block 270 accordingly, thereby achieving precise control of the puncture assembly. When the puncture rod 260 needs to be released, the threaded shaft 220 can be rotated in the opposite direction to make the driving shaft 210 retreat, and the tapered end 211 reduces the pressure on the driving block 270, thereby allowing the reset spring 280 to bring the driving block 270 and the puncture rod 260 back to the initial position. This process ensures the accuracy and safety of the surgical operation, reduces human errors, and improves the treatment effect.

[0055] In summary, the corneal stapler provided by the present invention, through its unique structural design and technical principles, demonstrates significant advantages in solving the shortcomings of traditional manual suturing, and brings new solutions and development directions to the field of corneal surgery.

[0056] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A corneal stapler, characterized in that, Comprising: A cylinder body (100), which is arranged in a columnar shape, with one end for placing the cornea to be sutured and the other end for holding; A positioning mechanism (300), fixedly installed at one end of the cylinder body (100) for placing the cornea, to limit and position the edge of the cornea on the patient's eye that needs to be sutured; A suture mechanism (200), fixedly installed at one end of the cylinder body (100) for placing the cornea, to cooperate with the positioning mechanism (300) to suture the cornea to be sutured with the cornea on the patient's eye; The suture mechanism (200) includes at least two wire box assemblies installed on the cylinder body (100) and a puncture assembly corresponding to each wire box assembly; At least two of the wire box assemblies are evenly arranged along the circumferential direction of the cylinder body (100), and the wire box assemblies store anastomosis nails for suturing the cornea. The puncture assembly cooperates with the wire box assemblies to push the anastomosis nails in the wire box assemblies to the positioning mechanism (300) to complete the positioning suture of the cornea on the opposite side of the cornea to be sutured with the cornea on the patient's eye.

2. The corneal stapler according to claim 1, wherein, The wire box assembly includes a box frame (240) detachably connected to the side wall of the cylinder body (100); A receiving groove (140) with an opening on the side wall is formed on the side wall of the cylinder body (100). The box frame (240) is clamped in the receiving groove (140). One end of the box frame (240) is close to the end of the cylinder body (100) for placing the cornea, and a receiving hole (245) for receiving the anastomosis nails is formed at this end of the box frame (240). The opening direction of the receiving hole (245) is perpendicular to the axial direction of the cylinder body (100) when the box frame (240) is installed on the cylinder body (100); The puncture mechanism sutures by pushing the anastomosis nails in the receiving hole (245) and passing through the cornea to be sutured and the patient's cornea in sequence.

3. The corneal stapler according to claim 2, characterized in that, The wire box assembly further includes a magnet block (243) fixedly installed on the side wall of the receiving groove (140); A card slot (241) for cooperating with the magnet block (243) is formed on the box frame (240), and an iron sheet (242) is fixedly installed in the card slot (241). When the box frame (240) is clamped in the receiving groove (140), the magnet block (243) is embedded in the card slot (241) to generate magnetic attraction fixation with the patch.

4. A corneal stapler according to claim 2, wherein, The puncture assembly includes a puncture rod (260) arranged along the radial direction of the cylinder body (100); A sliding groove (160) is formed on the circumferential side wall of one end of the cylinder body (100) for placing the cornea to be sutured along its radial direction. When the box frame (240) is clamped in the receiving groove (140), the receiving hole (245) corresponds to the sliding groove (160); The puncture rod (260) is slidably arranged in the sliding groove (160) and slides from the sliding groove (160) into the receiving hole (245) during the suture process to push the anastomosis nails in the receiving hole (245) out for suturing; The suture mechanism (200) further includes a pushing assembly for pushing the puncture rod (260) to move.

5. The corneal stapler according to claim 4, wherein One end of the puncture rod (260) for contacting the anastomosis nail is provided with a groove for positioning the suture fixed in the groove.

6. The corneal stapler according to claim 4, wherein, The pushing assembly includes a pushing shaft (210) sliding along the axial direction of the cylinder body (100) and a pushing block (270) for pushing the puncture rod (260) to move. A central cavity (120) for the sliding of the pushing shaft (210) is provided in the center of the cylinder body (100). A pushing groove (170) for the sliding of the pushing block (270) is provided in the cylinder body (100) along its radial direction. The pushing groove (170) communicates with the cavity (120) in the radial direction of the cylinder body (100), and the pushing groove (170) communicates with the sliding groove (160) in the axial direction of the cylinder body (100). One end of the puncture rod (260) is fixedly connected to the pushing block (270), and the other end of the puncture rod (260) extends towards the outer peripheral side wall of the cylinder body (100). One end of the pushing block (270) away from the puncture rod (260) extends out of the cavity (120) from the pushing groove (170). The pushing shaft (210) slides in the cavity (120) to squeeze the pushing block (270) to drive the puncture rod (260) to slide out. The pushing assembly is further provided with a reset member for resetting the puncture rod (260).

7. A corneal stapler according to claim 6, characterized in that, The reset member includes a reset spring (280). One end of the reset spring (280) is fixedly connected to the side wall opposite to the connection point of the pushing groove (170) and the cavity (120), and the other end of the reset spring (280) is fixedly connected to the pushing block (270). When the puncture rod (260) extends out, the reset spring (280) is squeezed. When the pushing shaft (210) does not squeeze the pushing block (270), the pushing block (270) and the puncture rod (260) are reset under the action of the spring force and squeeze the pushing block (270) to abut against the side wall of the sliding groove (160) facing the outer circumference of the inner cylinder.

8. The corneal stapler according to claim 6, wherein, One end of the moving shaft for contacting the pushing block (270) is provided with a tapered end (211). The circumferential side wall of the tapered end (211) contacts the pushing block (270), and the diameter of the tapered end (211) gradually increases along the direction when the pushing shaft (210) squeezes the pushing block (270) to move.

9. A corneal stapler according to claim 6, wherein, The pushing assembly further includes a dial piece (230) and a threaded shaft (220). One end of the threaded shaft (220) is sleeved on the pushing shaft (210), and the other end of the threaded shaft (220) extends out from the top end of the sleeve and is threadedly connected to the sleeve. The dial piece (230) is fixedly connected to the end of the threaded shaft (220) away from the pushing shaft (210). When in use, the dial piece (230) is toggled to drive the threaded shaft (220) to rotate, so as to push the pushing shaft (210) to move in the axial direction of the cylinder body (100).

10. A corneal stapler according to claim 1, characterized in that, The positioning mechanism (300) includes a positioning sleeve (310) and a connecting rod (320). The positioning sleeve (310) is sleeved on the cylinder body (100), and there is a gap between the positioning sleeve (310) and the cylinder body (100) for placing the edge of the cornea to be sutured and the edge of the patient's cornea. The connecting rod (320) is used for fixedly connecting to the outer side wall of the positioning sleeve (310) and the cylinder body (100); The inner circumferential side wall of the positioning sleeve (310) is provided with a protrusion (340) for corresponding to the conical shape of the staples. The protrusion (340) is used for the staples to undergo radial deformation after passing through the cornea, so as to increase the width of the end of the staples and prevent detachment.

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