Scleral flap maker for glaucoma operations

Abstract

The present application belongs to the technical field of surgical instruments, and provides a sclera flap making knife for glaucoma surgery, which comprises a holding rod, a cutting device and a transmission mechanism. When making a rectangular sclera flap, the surgeon holds the holding rod to stab the two sets of blades into the patient's sclera, then keeps the holding rod still, rotates the rotating member by fingers, and drives the cutting mechanism to move through the transmission assembly, so that the two sets of blades are separated and reciprocally moved to form a cutting action to cut the sclera, thereby making a rectangular sclera flap. During the cutting process of the rectangular sclera flap, the holding rod remains still, the blades form a cutting action by rotating the rotating member, the movement range of the surgeon's hand is small, the cutting trajectory of the blades is easy to control, and the sclera flap with smooth and flat wound surface and consistent thickness is easy to cut.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of surgical instruments, in particular to a scleral flap making knife for glaucoma surgery. BACKGROUND

[0002] Glaucoma is a disease of the optic nerve caused by damage to the optic nerve from abnormally high pressure in the eye. It is divided into angle-closure glaucoma and open-angle glaucoma. The treatment of glaucoma is mainly to reduce the intraocular pressure, and the methods that can be used include drugs, laser and surgery. Among them, angle-closure glaucoma should be treated mainly by surgery, such as iridectomy or trabeculectomy.

[0003] At present, when treating angle-closure glaucoma by surgery, a flap making knife is needed to cut the scleral flap. In order to improve the effect of reducing intraocular pressure, the thickness of the scleral flap should be uniform and the wound surface should be smooth during the production of the rectangular scleral flap. However, the existing flap making knives are mostly simple in structure and are composed of a single blade and a handle. During use, the surgeon holds the handle and inserts the blade into the sclera, and then moves the blade by moving the arm and wrist to form a cutting action. However, the movement range of the blade driven by the surgeon's hand is large, and the cutting trajectory of the blade is not easy to control, so it is not convenient to cut the scleral flap with a smooth and flat wound surface and uniform thickness. Therefore, a scleral flap making knife for glaucoma surgery is proposed to solve the above technical problems. SUMMARY

[0004] In view of the deficiencies in the prior art, the present application provides a scleral flap making knife for glaucoma surgery, which facilitates the control of the cutting trajectory of the blade and the cutting of the scleral flap with a smooth and flat wound surface and uniform thickness.

[0005] The scleral flap making knife for glaucoma surgery comprises:

[0006] A handle, one end of the handle is provided with a mounting seat;

[0007] A cutting device, comprising a cutting mechanism and two groups of blades, the cutting mechanism is slidably arranged on the mounting seat, the two groups of blades are connected with the cutting mechanism, and the sliding of the cutting mechanism can make the two groups of blades separate and reciprocate respectively to form a cutting action; and

[0008] A transmission mechanism, comprising a rotating member and a transmission assembly, the rotating member is rotatably arranged on the handle, the transmission assembly is arranged on the mounting seat and connected with the rotating member and the cutting mechanism respectively, and the rotation of the rotating member can make the cutting mechanism slide through the transmission assembly to make the two groups of blades separate and reciprocate respectively to form a cutting action.

[0009] The sclera flap making knife for glaucoma surgery has the following beneficial effects:

[0010] In the process of making the rectangular sclera flap, the two sets of blades are inserted into the sclera by holding the handle, then the handle is kept stationary, and then the rotating member is rotated, the rotating member rotates through the transmission assembly to slide the cutting mechanism, the sliding of the cutting assembly separates the two sets of blades and reciprocally moves them to form a cutting action, thereby cutting the sclera. In the process of cutting the sclera, the handle remains stationary, and the blades can be moved to cut the sclera by rotating the rotating member. The movement range of the hands of the surgical personnel is small, the cutting trajectory of the blades is easy to control, and the sclera flap with a smooth and flat wound surface and uniform thickness is easy to cut.

[0011] In one embodiment, the cutting mechanism includes two sets of guide seats and two sets of reciprocating assemblies. The two sets of guide seats are slidably arranged on the mounting seat along the long edge direction of the mounting seat, and the two sets of reciprocating assemblies are rotatably arranged on the two sets of guide seats and connected with the two sets of blades respectively. The reciprocating assembly is used to convert the sliding of the guide seat into the reciprocating movement of the blade along the wide edge direction of the mounting seat. By moving the guide seat along the long edge direction of the mounting seat, the blade can be moved along the long edge direction of the mounting seat and reciprocally moved along the wide edge direction of the mounting seat to form a cutting action, and the cutting trajectory of the blade is easy to control.

[0012] In one embodiment, the reciprocating assembly includes a push block, a shaft, a rack, and a first driving member. The push block is slidably arranged on the guide seat along the wide edge direction of the mounting seat and detachably connected with the blade. The shaft is rotatably arranged on the guide seat, and one end of the shaft is provided with a gear. The rack is detachably arranged on the mounting seat along the long edge direction of the mounting seat. The gear is engaged with the rack. The first driving member is arranged at the other end of the shaft and connected with the push block, and is used to convert the rotation of the shaft into the reciprocating movement of the push block. By moving the guide seat to move the shaft, the movement of the shaft drives the gear to move along the rack, the rotation of the gear drives the first driving member to rotate, and the reciprocating movement of the push block is facilitated.

[0013] In one embodiment, the first driving member includes a rotating disc. The rotating disc is fixedly connected with the shaft, and an eccentric push rod is arranged on the rotating disc. A push slot is formed in the push block, and the push rod is slidably arranged in the push slot.

[0014] In one of the embodiments, the transmission assembly comprises a transmission member and a second driving member; the transmission member is connected with the rotating member to transmit the rotation of the rotating member; the second driving member is rotatably arranged on the mounting base and connected with the transmission member and the two groups of guide bases respectively; the second driving member is used to convert the rotation of the rotating member into the relative approaching or moving away of the two groups of guide bases. The transmission member and the second driving member are arranged to facilitate the conversion of the rotation of the rotating member into the relative approaching or moving away of the two groups of guide bases, and the control of the movement of the guide bases is facilitated.

[0015] In one of the embodiments, the second driving member comprises a first bidirectional screw; the first bidirectional screw is rotatably arranged on the mounting base along the length direction of the mounting base; and the two groups of guide bases are threadedly connected at the two ends of the first bidirectional screw. The rotation of the first bidirectional screw and the threaded connection with the two groups of guide bases can facilitate the relative moving away or approaching of the two groups of guide bases; the movement of the guide bases is facilitated; and the positioning of the two groups of guide bases can be achieved by stopping the rotation of the first bidirectional screw, and the movement and positioning of the guide bases are facilitated.

[0016] In one of the embodiments, the limiting assembly is arranged on the mounting base and can limit the movement of the two groups of guide bases when the two groups of guide bases move away from each other. The limiting of the movement of the guide bases away from each other can limit the moving distance of the blades driven by the guide bases, and thus the maximum moving distance of the blades can be limited to facilitate the control of the maximum size of the cut scleral flap.

[0017] In one of the embodiments, the limiting assembly comprises two groups of limiting seats and a third driving member; the two groups of limiting seats are movably arranged on the mounting base along the length direction of the mounting base and can abut against the side walls of the two groups of guide bases away from each other; the third driving member is rotatably arranged on the mounting base and connected with the two groups of limiting seats; and the rotation of the third driving member can drive the two groups of limiting seats to move away from or approach each other. When the two groups of guide bases abut against the limiting seats during the movement away from each other, the two groups of guide bases cannot continue to move away from each other, and the limiting of the movement of the two groups of guide bases away from each other is facilitated; the two groups of guide bases are simultaneously limited, and the stability of the limiting of the guide bases is improved.

[0018] In one of the embodiments, the third driving member comprises a second bidirectional screw; the second bidirectional screw is rotatably arranged on the mounting base; and the two groups of limiting seats are threadedly connected at the two ends of the second bidirectional screw. The rotation of the second bidirectional screw and the threaded connection with the two groups of limiting seats can drive the two groups of limiting seats to move away from or approach each other, and the movement of the two groups of limiting seats is facilitated; the second bidirectional screw and the two groups of limiting seats are threadedly connected; and the positioning of the two groups of limiting seats can be achieved by stopping the rotation of the second bidirectional screw, and the positioning is facilitated.

[0019] In one of the embodiments, the mounting base is detachably provided with a mounting cover, the two groups of limiting seats are slidably arranged on the mounting cover, and the second bidirectional screw rod is rotatably arranged on the mounting cover. The second bidirectional screw rod and the two groups of limiting seats can be detached by detaching the mounting cover, and the mounting and detaching of the second bidirectional screw rod and the two groups of limiting seats are convenient. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the specific embodiments of the present application, the drawings required to be used in the specific embodiments will be briefly introduced below. In all the drawings, the elements or parts are not necessarily drawn according to the actual proportion.

[0021] Figure 1 A perspective structural schematic view of a sclera flap making knife for glaucoma surgery provided by an embodiment of the present application is shown in the figure;

[0022] Figure 2 An exploded view of the sclera flap making knife for glaucoma surgery shown in the figure; Figure 1

[0023] A perspective structural schematic view of the local structure after the sclera flap making knife for glaucoma surgery shown in the figure is cut open; Figure 3 Figure 1 An enlarged schematic view of the area A in the sclera flap making knife for glaucoma surgery shown in the figure;

[0024] Figure 4 Figure 3 A perspective structural schematic view of the mounting base in the sclera flap making knife for glaucoma surgery shown in the figure;

[0025] Figure 5 An exploded view of the cutting device in the sclera flap making knife for glaucoma surgery shown in the figure; Figure 1

[0026] A perspective structural schematic view of the mounting base in the sclera flap making knife for glaucoma surgery shown in the figure; Figure 6 Figure 1 An exploded view of the cutting device in the sclera flap making knife for glaucoma surgery shown in the figure;

[0027] Figure 7 Figure 1 An exploded view of the guide seat after being cut open in the sclera flap making knife for glaucoma surgery shown in the figure;

[0028] Figure 8 An exploded view of the mounting base and the limiting assembly in the sclera flap making knife for glaucoma surgery shown in the figure; Figure 1

[0029] An exploded view of the mounting base and the limiting assembly in the sclera flap making knife for glaucoma surgery shown in the figure; Figure 9 Figure 1 An exploded view of the mounting base and the limiting assembly in the sclera flap making knife for glaucoma surgery shown in the figure;

[0030] Figure 10 Figure 1 ​​​​​​The partial structure of the sclera flap knife for glaucoma surgery is shown in the perspective view.

[0031] Reference signs:

[0032] 10, handle; 11, mounting seat; 111, spring piece clamping groove; 112, first through groove; 113, guide sliding groove; 114, fixed block; 115, second through groove; 12, blade; 121, connecting buckle; 13, mounting cover; 131, third through groove; 132, spring piece clamping buckle; 133, scale; 14, transmission mechanism; 141, rotating piece; 142, first transmission shaft; 143, first bidirectional screw; 144, bevel gear; 145, universal joint; 146, second transmission shaft; 15, cutting mechanism; 151, rack; 152, gear; 153, guide seat; 154, screw hole seat; 155, limiting sliding groove; 156, push block; 1561, push groove; 1562, connecting clamping groove; 157, rotating shaft; 158, rotating disc; 1581, push shaft; 16, limiting assembly; 161, second bidirectional screw; 162, limiting seat; 1621, indicating mark. DETAILED DESCRIPTION

[0033] The embodiments of the technical solutions of the present application will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, therefore only as an example, and cannot limit the protection scope of the present application.

[0034] Please refer to Figure 1 , Figure 3 , Figure 7 The sclera flap knife for glaucoma surgery in an embodiment comprises a handle 10, a cutting device and a transmission mechanism 14.

[0035] Specifically, one end of the handle 10 is provided with a mounting seat 11. The cutting device comprises a cutting mechanism 15 and two groups of blades 12, the cutting mechanism 15 is slidably arranged on the mounting seat 11, the two groups of blades 12 are connected with the cutting mechanism 15, and the cutting mechanism 15 slides to make the two groups of blades 12 separate and reciprocate respectively to form a cutting action. The transmission mechanism 14 comprises a rotating piece 141 and a transmission assembly, the rotating piece 141 is rotatably arranged on the handle 10, the transmission assembly is arranged on the mounting seat 11 and connected with the rotating piece 141 and the cutting mechanism 15 respectively, and the rotating piece 141 is rotated to make the cutting mechanism 15 slide through the transmission assembly, so that the two groups of blades 12 separate and reciprocate respectively to form a cutting action.

[0036] In the above embodiment, when the rectangular scleral flap is made, the two groups of blades 12 are inserted into the sclera of the patient by holding the handle 10, then the handle 10 is kept stationary, the rotating member 141 is rotated by the fingers, the rotating member 141 is rotated to drive the cutting mechanism 15 to move through the transmission assembly, the cutting mechanism 15 moves to make the two groups of blades 12 separate and reciprocate to form a cutting action to cut the sclera, thereby making the rectangular scleral flap. During the cutting of the rectangular scleral flap, the handle 10 is kept stationary, the blades 12 form a cutting action by rotating the rotating member 141, the movement range of the hands of the operator is small, the cutting trajectory of the blades 12 is easy to control, and the scleral flap with a smooth and flat wound surface and uniform thickness is easy to cut.

[0037] Referring to Figures 5 to 7 In an embodiment, the cutting mechanism 15 includes two groups of guide seats 153 and two groups of reciprocating moving assemblies. The two groups of guide seats 153 are slidably arranged on the mounting seat 11 along the long edge direction of the mounting seat 11. The two groups of reciprocating moving assemblies are rotatably arranged on the two groups of guide seats 153, respectively, and are connected with the two groups of blades 12, respectively. The reciprocating moving assembly is used to convert the sliding of the guide seat 153 into the reciprocating movement of the blade 12 along the wide edge direction of the mounting seat 11.

[0038] On the basis of the above embodiment, further, a guide sliding groove 113 is formed on the mounting seat 11, and the two groups of guide seats 153 are slidably arranged in the guide sliding groove 113 along the long edge direction of the mounting seat 11. By forming the guide sliding groove 113, the guide seat 153 is slidably arranged in the mounting seat 11, thereby facilitating the reduction of the overall volume of the device and improving the flexibility of the operation of the device.

[0039] Referring to Figure 5 , Figure 7 , Figure 8 In an embodiment, the reciprocating moving assembly includes a pushing block 156, a rotating shaft 157, a rack 151, and a first driving member. The pushing block 156 is slidably arranged on the guide seat 153 along the wide edge direction of the mounting seat 11 and is detachably connected with the blade 12. The rotating shaft 157 is rotatably arranged on the guide seat 153, and one end of the rotating shaft 157 is provided with a gear 152. The rack 151 is detachably arranged on the mounting seat 11 along the long edge direction of the mounting seat 11, the gear 152 is engaged with the rack 151, and the first driving member is arranged at the other end of the rotating shaft 157. The first driving member is connected with the pushing block 156 and is used to convert the rotation of the rotating shaft 157 into the reciprocating movement of the pushing block 156.

[0040] On the basis of the above embodiment, further, a limiting sliding groove 155 is formed on the guide seat 153, and the pushing block 156 is slidably arranged in the limiting sliding groove 155.

[0041] Further based on the above embodiment, the first driving member comprises a rotating disc 158; the rotating disc 158 is fixedly connected with the rotating shaft 157, and an eccentric driving shaft 1581 is arranged on the rotating disc 158; a driving groove 1561 is arranged on the driving block 156, and the driving shaft 1581 is slidably arranged in the driving groove 1561.

[0042] In the above embodiment, when the guide seat 153 moves, the guide seat 153 drives the rotating shaft 157 to move, the rotating shaft 157 drives the gear 152 to move, the gear 152 moves and engages with the gear rack 151 to drive the gear 152 to rotate, the gear 152 rotates to drive the rotating shaft 157 to rotate, the rotating shaft 157 rotates to drive the rotating disc 158 to rotate, the rotating disc 158 rotates to drive the driving shaft 1581 to rotate eccentrically, the driving shaft 1581 rotates eccentrically and slides in the driving groove 1561, and the driving groove 1561 drives the driving block 156 to reciprocate, and the driving block 156 reciprocates to drive the blade 12 to reciprocate, so that the blade 12 reciprocates to cut the sclera, and the sclera is conveniently cut.

[0043] Please refer to Figure 6 、 Figure 7 Further based on the above embodiment, the first driving member comprises a rotating disc 158; the rotating disc 158 is fixedly connected with the rotating shaft 157, and an eccentric driving shaft 1581 is arranged on the rotating disc 158; a driving groove 1561 is arranged on the driving block 156, and the driving shaft 1581 is slidably arranged in the driving groove 1561.

[0044] Please refer to Figure 3 、 Figure 4 In an embodiment, the transmission assembly comprises a transmission member and a second driving member. The transmission member is connected with the rotating member 141 and is used to transmit the rotation of the rotating member 141, the second driving member is rotatably arranged on the mounting seat 11 and is connected with the transmission member and the two groups of guide seats 153, respectively, and the second driving member is used to convert the rotation of the rotating member 141 into the relative close or far movement of the two groups of guide seats 153.

[0045] Further based on the above embodiment, the second driving member comprises a first bidirectional screw 143, the first bidirectional screw 143 is rotatably arranged on the mounting seat 11 along the long side direction of the mounting seat 11, and the two groups of guide seats 153 are threadedly connected with the two ends of the first bidirectional screw 143, respectively.

[0046] In the above embodiment, the rotating rotating member 141 drives the first bidirectional screw 143 to rotate through the transmission member, the first bidirectional screw 143 rotates and is screwed with the two sets of guide seats 153, so that the two sets of guide seats 153 are relatively moved away or close to each other, the movement of the two sets of guide seats 153 is controlled conveniently, and the rotation of the rotating member 141 is stopped, so that the rotation of the first bidirectional screw 143 is stopped, and the position of the two sets of guide seats 153 is positioned at this time. It is convenient to position the two sets of guide seats 153.

[0047] On the basis of the above embodiment, further, the transmission member includes a first transmission shaft 142, a second transmission shaft 146 and a universal joint 145. The first transmission shaft 142 is rotatably arranged in the handle 10 and coaxially connected with the rotating member 141. The second transmission shaft 146 is rotatably arranged on the mounting seat 11. The one end of the second transmission shaft 146 and the middle part of the first bidirectional screw 143 are both provided with bevel gears 144. The two sets of bevel gears 144 are engaged. The universal joint 145 connects the first transmission shaft 142 and the second transmission shaft 146.

[0048] In the above embodiment, the first transmission shaft 142 is driven to rotate by rotating the rotating member 141. The second transmission shaft 146 is driven to rotate by the universal joint 145 through the rotation of the first transmission shaft 142. The first bidirectional screw 143 is driven to rotate by the engagement of the bevel gears 144 through the rotation of the second transmission shaft 146. It is convenient to drive the first bidirectional screw 143 to rotate.

[0049] Please refer to Figure 4 , Figure 5 , Figure 7 On the basis of the above embodiment, further, the side wall of the mounting seat 11 close to the handle 10 is provided with a second through groove 115. Two sets of screw hole seats 154 are respectively arranged on the two sets of guide seats 153. The two sets of screw hole seats 154 are slidably arranged in the second through groove 115, so as to improve the stability of the guide seat 153 during movement. The first bidirectional screw 143 is rotatably arranged in the second through groove 115. The two sets of screw hole seats 154 are respectively screwed at the two ends of the first bidirectional screw 143. The second through groove 115 is provided with a fixed block 114. The second transmission shaft 146 is rotatably arranged in the fixed block 114 and perpendicular to the first bidirectional screw 143.

[0050] Please refer to Figure 2 , Figure 7 , Figure 9 , Figure 10 In an embodiment, a limiting assembly 16 is further included. The limiting assembly 16 is arranged on the mounting seat 11 and can limit the two sets of guide seats 153 when the two sets of guide seats 153 are relatively moved away.

[0051] Further based on the above-mentioned embodiment, the limiting assembly 16 comprises two groups of limiting seats 162 and a third driving member. The two groups of limiting seats 162 are movably arranged on the mounting base 11 along the long direction of the mounting base 11 and can abut against the side walls away from the two groups of guide seats 153. The third driving member is rotatably arranged on the mounting base 11 and connected with the two groups of limiting seats 162. Rotating the third driving member can drive the two groups of limiting seats 162 to move away from or close to each other.

[0052] Further based on the above-mentioned embodiment, the third driving member comprises a second bidirectional screw 161. The second bidirectional screw 161 is rotatably arranged on the mounting base 11, and the two groups of limiting seats 162 are threadedly connected to the two ends of the second bidirectional screw 161 respectively.

[0053] In the above-mentioned embodiment, by rotating the second bidirectional screw 161, the second bidirectional screw 161 is rotated and threadedly cooperated with the two groups of limiting seats 162, so as to drive the two groups of limiting seats 162 to move away from or close to each other. When the two groups of limiting seats 162 are moved to the appropriate positions, the rotation of the second bidirectional screw 161 is stopped. At this time, the positions of the two groups of limiting seats 162 can be limited. When the two groups of guide seats 153 are moved away from each other and abut against the two groups of limiting seats 162, the two groups of guide seats 153 cannot continue to move away from each other, so as to limit the movement of the two groups of guide seats 153 away from each other, and further limit the maximum size of the two groups of blades 12 away from each other. Therefore, the maximum size of the two groups of blades 12 cutting the sclera away from each other can be adjusted according to the requirements, and the practicability of the device is improved.

[0054] Please refer to Figure 9 In an embodiment, the mounting base 11 is detachably provided with a mounting cover 13. The two groups of limiting seats 162 are slidably arranged on the mounting cover 13, and the second bidirectional screw 161 is rotatably arranged on the mounting cover 13.

[0055] Further based on the above-mentioned embodiment, the two ends of the mounting cover 13 are provided with elastic piece buckles 132. The mounting base 11 is provided with elastic piece slots 111 corresponding to the two groups of elastic piece buckles 132. The two groups of elastic piece buckles 132 are clamped in the elastic piece slots 111. The mounting cover 13 is provided with a third through slot 131. The two groups of limiting seats 162 are slidably arranged in the third through slot 131. By applying a certain force to the mounting cover 13 to make the elastic piece buckles 132 elastically deform, the elastic piece buckles 132 can be clamped in the elastic piece slots 111 or separated from the elastic piece slots 111. Therefore, the mounting cover 13 can be mounted on or detached from the mounting base 11, and further the second bidirectional screw 161 and the two groups of limiting seats 162 can be simultaneously detached or mounted. Moreover, the two groups of limiting seats 162 are limited by the third through slot 131, so as to improve the stability of the movement of the two groups of limiting seats 162, and further improve the stability of the limiting of the guide seats 153.

[0056] Please join in Figure 10 Further, on the basis of the above embodiment, two sets of scales 133 are oppositely arranged on the mounting cover 13, the two sets of scales 133 are arranged along the long edge direction of the mounting base 11, and the two sets of limiting seats 162 are respectively provided with indicating marks 1621, and the indicating marks 1621 point to the scales 133. When the limiting seat 162 moves, the indicating mark 1621 can be driven to move along the scale 133, thereby facilitating accurate adjustment of the distance between the two sets of limiting seats 162 and improving the accuracy of the adjustment.

[0057] The specific embodiment of the sclera flap knife for glaucoma surgery is:

[0058] First, according to the size of the rectangular sclera flap to be cut, the two sets of limiting seats 162 are relatively moved by rotating the second bidirectional screw 161 and the two sets of limiting seats 162 are threadedly connected, the two sets of limiting seats 162 are relatively moved to drive the indicating marks 1621 to move along the scales 133, when the indicating marks 1621 move to the specified position on the scale 133, the rotation of the second bidirectional screw 161 is stopped to position the two sets of limiting seats 162, at this time, the two sets of limiting seats 162 can limit the maximum size of the two sets of guide seats 153 driven by the blade 12 to move away, thereby limiting the size of the two sets of blades 12 to cut the sclera, and facilitating the cutting of the rectangular sclera flap with the required size.

[0059] Then the two groups of blades 12 are inserted into the patient's sclera by holding the handle 10, and then the handle 10 is kept stationary, the rotating member 141 is rotated by fingers, the rotating member 141 is rotated to drive the first bidirectional screw 143 by the meshing of the first transmission shaft 142, the universal joint 145, the second transmission shaft 146 and the two groups of bevel gears 144, the first bidirectional screw 143 is rotated to drive the two groups of guide seats 153 to move away from each other by the threaded cooperation of the first bidirectional screw 143 and the two groups of screw hole seats 154, the two groups of guide seats 153 move away from each other to drive the two groups of blades 12 to move away from each other, and at the same time that the two groups of guide seats 153 move away from each other, the guide seat 153 drives the gear 152 to move by the rotating shaft 157, the gear 152 is rotated to drive the rotating disc 158 to rotate by the meshing of the gear 152 and the rack 151, the rotating disc 158 is rotated to drive the eccentric rotating shaft 1581 to eccentric rotate in the push groove 1561, the eccentric rotating shaft 1581 slides in the push groove 1561 to drive the push block 156 to reciprocate, the push block 156 reciprocates to drive the blade 12 to reciprocate, so that the two groups of blades 12 move away from each other and reciprocate at the same time to form a cutting action to cut the sclera, when the two groups of guide seats 153 move away from each other and are in contact with the two groups of limiting seats 162, the two groups of guide seats 153 stop moving, at this time the rotating member 141 cannot be rotated, so that the two groups of blades 12 stop the cutting action, and the cutting of the rectangular scleral flap of the required size is completed, and finally the two groups of blades 12 are taken out of the sclera, in the process of cutting the rectangular scleral flap, the handle 10 is kept stationary, the blade 12 is moved to cut the sclera by rotating the rotating member 141, the movement range of the hands of the surgical personnel is small, the cutting trajectory of the blade 12 is convenient to control, and the scleral flap with a smooth and flat wound surface and uniform thickness is convenient to cut.

[0060] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit the same; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the specification of the present application.

Claims

1. A scleral flap-making knife for glaucoma surgery, characterized in that, include: A grip (10) is provided with a mounting base (11) at one end of the grip (10). A cutting device includes a cutting mechanism (15) and two sets of blades (12). The cutting mechanism (15) is slidably mounted on the mounting base (11), and the two sets of blades (12) are connected to the cutting mechanism (15). The transmission mechanism (14) includes a rotating component (141) and a transmission assembly. The rotating component (141) is rotatably mounted on the handle (10). The transmission assembly is mounted on the mounting base (11) and is connected to the rotating component (141) and the cutting mechanism (15) respectively. By rotating the rotating component (141), the cutting mechanism (15) can slide through the transmission assembly, so that the two sets of blades (12) separate and reciprocate to form a cutting action. The cutting mechanism (15) includes two sets of guide seats (153) and two sets of reciprocating moving components; the two sets of guide seats (153) are slidably disposed on the mounting base (11) relative to each other or away from each other along the long side direction of the mounting base (11), and the two sets of reciprocating moving components are rotatably disposed on the two sets of guide seats (153) and are respectively connected to the two sets of blades (12). The reciprocating moving components are used to convert the sliding of the guide seats (153) into the reciprocating movement of the blades (12) along the wide side direction of the mounting base (11); The reciprocating motion assembly includes a paddle (156), a rotating shaft (157), a rack (151), and a first driving member. The paddle (156) is slidably disposed on the guide seat (153) along the wide side of the mounting base (11) and is detachably connected to the blade (12). The rotating shaft (157) is rotatably disposed on the guide seat (153), and a gear (152) is provided at one end of the rotating shaft (157). The rack (151) is detachably disposed on the mounting base (11) along the long side of the mounting base (11), and the gear (152) meshes with the rack (151). The first driving member is disposed at the other end of the rotating shaft (157) and is connected to the paddle (156) to convert the rotation of the rotating shaft (157) into the reciprocating movement of the paddle (156). The first driving component includes a turntable (158); the turntable (158) is fixedly connected to the rotating shaft (157), and a dial shaft (1581) is eccentrically arranged on the turntable (158). A dial groove (1561) is opened on the dial block (156), and the dial shaft (1581) can slide through the dial groove (1561).

2. The scleral flap-making knife for glaucoma surgery according to claim 1, characterized in that, The transmission assembly includes a transmission component and a second driving component; the transmission component is connected to the rotating component (141) to transmit the rotation of the rotating component (141); the second driving component is rotatably mounted on the mounting base (11) and is connected to the transmission component and the two sets of guide seats (153) respectively; the second driving component is used to convert the rotation of the rotating component (141) into the relative movement of the two sets of guide seats (153) towards or away from each other.

3. The scleral flap-making knife for glaucoma surgery according to claim 2, characterized in that, The second driving component includes a first bidirectional screw (143), which is rotatably mounted on the mounting base (11) along the long side direction of the mounting base (11), and two sets of guide seats (153) are threadedly connected to the two ends of the first bidirectional screw (143).

4. The scleral flap-making knife for glaucoma surgery according to claim 2, characterized in that, It also includes a limiting component (16) disposed on the mounting base (11), which can limit the two sets of guide seats (153) when the two sets of guide seats (153) move away from each other.

5. The scleral flap-making knife for glaucoma surgery according to claim 4, characterized in that, The limiting component (16) includes two sets of limiting seats (162) and a third driving member; the two sets of limiting seats (162) are movable along the long side of the mounting base (11) and are disposed on the mounting base (11), and can abut against the side wall opposite to the two sets of guide seats (153); the third driving member is rotatably disposed on the mounting base (11) and connected to the two sets of limiting seats (162); rotating the third driving member can drive the two sets of limiting seats (162) to move away from or closer to each other.

6. The scleral flap-making knife for glaucoma surgery according to claim 5, characterized in that, The third driving component includes a second bidirectional screw (161); the second bidirectional screw (161) is rotatably mounted on the mounting base (11), and two sets of limiting seats (162) are threadedly connected to both ends of the second bidirectional screw (161).

7. The scleral flap-making knife for glaucoma surgery according to claim 6, characterized in that, The mounting base (11) is detachably provided with a mounting cover (13), and two sets of limiting seats (162) are slidably provided on the mounting cover (13). The second bidirectional screw (161) is rotatably provided on the mounting cover (13).

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