An eyeball fixator for all-femtosecond SMILE surgery

Abstract

This utility model belongs to the field of medical devices, specifically an ocular fixator for SMILE surgery. It includes a negative pressure unit for a negative pressure suction ocular fixator. An adjustment housing is fixedly installed on one side of the negative pressure unit, and an adjustment mechanism is provided on the inner side of the adjustment housing. An adjustment slider is slidably installed on the inner side of the adjustment housing. A support arm is fixedly installed on one side of the adjustment slider, and a ring clamp is fixedly installed at the other end of the support arm. A replacement housing is engaged on the inner side of the ring clamp, and a replacement mechanism is provided on the inner side of the replacement housing. A negative pressure suction cup is located at the bottom of the replacement mechanism. This utility model allows for quick disassembly and replacement of the negative pressure suction cup, facilitating postoperative disinfection and handling emergencies. It also allows for the replacement of different negative pressure suction cups according to different situations, thus adapting to patients with different conditions and increasing the practicality and applicability of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to an eye fixator for SMILE surgery. Background Technology

[0002] SMILE surgery, or femtosecond laser-assisted lenticule extraction, is an ophthalmic procedure and one of the most advanced corneal refractive surgery techniques currently available. During the SMILE procedure, the corneal surface and corneal stromal lenticule are scanned and created in one go, and the entire procedure is completed without the need to switch between several different surgical platforms.

[0003] During surgery, the patient's eyeballs may move, so an eye fixator is needed to fix them and prevent them from deviating. Most existing eye fixators are negative pressure suction eye fixators. Using the principle of negative pressure, a suction cup that contacts the surface of the eyeball applies a certain negative pressure to the surface of the eyeball. When the air in the suction cup is extracted and a negative pressure environment is formed, it will hold the surface of the eyeball in place, keeping the eyeball in a relatively stable position. This helps doctors to better control the surgical process and ensure that the femtosecond laser can accurately perform operations such as cutting the corneal stroma, improving the safety and precision of the surgery.

[0004] However, existing negative pressure suction eye fixation devices often require the suction cup body to be disassembled for cleaning and disinfection after use. In some special cases, if the suction cup cannot adhere to the eyeball or detaches from the eyeball during surgery, it needs to be replaced temporarily. However, the existing suction cup body is relatively soft, making it inconvenient to disassemble and replace, and the replacement process is cumbersome and time-consuming. Utility Model Content

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An ocular fixator for SMILE surgery includes a negative pressure device for a negative pressure suction ocular fixator. An adjustment housing is fixedly installed on one side of the negative pressure device, and an adjustment mechanism is provided on the inner side of the adjustment housing. An adjustment slider is slidably installed on the inner side of the adjustment housing. A support arm is fixedly installed on one side of the adjustment slider, and an annular clamp is fixedly installed on the other end of the support arm. A replacement housing is snapped onto the inner side of the annular clamp, and a replacement mechanism is provided on the inner side of the replacement housing. A negative pressure suction cup is provided at the bottom of the replacement mechanism.

[0007] Specifically, a negative pressure regulator is provided on one side of the negative pressure machine, and a telescopic tube is fixedly installed on the output port of the negative pressure regulator to facilitate the adjustment of negative pressure.

[0008] Specifically, a negative pressure bottle is fixedly installed on the top of the replacement shell, and the other end of the telescopic tube is connected to the top of the negative pressure bottle to facilitate the extraction of air between the eyeball and the suction cup body.

[0009] Specifically, the adjustment mechanism includes a ball screw and an adjustment servo motor. The ball screw is rotatably mounted on one inner wall of the adjustment housing. The adjustment slider is threaded onto the ball screw. The adjustment servo motor is fixedly mounted on the top of the adjustment housing. The output shaft of the adjustment servo motor is fixedly connected to the ball screw, and the ball screw can be rotated by the adjustment servo motor.

[0010] Specifically, the replacement mechanism includes a worm gear, a worm, a replacement servo motor, a linkage assembly, a guide plate, a clamping assembly, and a negative pressure suction cup. A worm gear is rotatably mounted on the top inner wall of the replacement housing, and a worm is rotatably mounted on one inner wall of the replacement housing. The worm and worm gear mesh with each other. A replacement servo motor is fixedly mounted on the bottom inner wall of the replacement housing, and the output shaft of the replacement servo motor is fixedly connected to the worm. A linkage assembly is provided inside the replacement housing, and a guide plate is fixedly mounted inside the replacement housing. Multiple clamping assemblies are provided at the bottom of the guide plate, and the bottoms of the multiple clamping assemblies all clamp the same negative pressure suction cup.

[0011] Specifically, the linkage component includes a linkage disk and multiple linkage slots. The linkage disk is rotatably mounted on the inner side of the replacement housing. Multiple linkage slots are opened at the bottom of the linkage disk, and multiple guide holes are opened at the bottom of the guide disk.

[0012] Specifically, the clamping assembly includes a linkage column and a limiting metal block. The linkage column is slidably installed on the bottom inner wall of the linkage groove. The linkage column is slidably installed in the corresponding guide hole. The limiting metal block is slidably installed on the bottom of the guide plate. The top of the limiting metal block is fixedly connected to the bottom end of the linkage column. The movement of the linkage column can drive the limiting metal block to move, thereby clamping the suction cup base.

[0013] Specifically, the negative pressure suction cup includes a suction cup base and a suction cup body. The bottom of the guide plate is provided with a suction cup base, and the top of the suction cup base is provided with multiple limiting grooves. Multiple limiting metal blocks are respectively adapted to the corresponding limiting grooves. The suction cup body is fixedly installed at the bottom of the suction cup base, and the suction cup body can be quickly replaced through the suction cup base.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: the set replacement mechanism can quickly disassemble and replace the negative pressure suction cup, which is convenient for postoperative disinfection and dealing with emergencies. At the same time, it is also convenient to replace different negative pressure suction cups according to different situations, thereby adapting to patients with different conditions and increasing the practicality and applicability of the equipment. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of an ocular fixator for SMILE surgery proposed in this utility model;

[0016] Figure 2 This is a three-dimensional cross-sectional view of the adjustment mechanism of the eyeball fixator for SMILE surgery proposed in this utility model;

[0017] Figure 3 This is a three-dimensional structural breakdown diagram of the adjustment mechanism of the eyeball fixator for SMILE surgery proposed in this utility model;

[0018] Figure 4 This is a three-dimensional cross-sectional view of a replacement mechanism for an ocular fixator used in SMILE surgery proposed in this utility model.

[0019] Figure 5 This is a three-dimensional structural disassembly diagram of a replacement mechanism for an ocular fixator used in SMILE surgery proposed in this utility model.

[0020] In the diagram: 1. Negative pressure machine; 2. Negative pressure regulator; 3. Adjustment housing; 4. Ball screw; 5. Adjustment servo motor; 6. Adjustment slider; 7. Support arm; 8. Ring clamp; 9. Replacement housing; 10. Negative pressure bottle; 11. Telescopic tube; 12. Worm gear; 13. Worm; 14. Replacement servo motor; 15. Linkage plate; 16. Linkage groove; 17. Guide plate; 18. Guide hole; 19. Linkage column; 20. Limiting metal block; 21. Suction cup base; 22. Suction cup body. Detailed Implementation

[0021] Reference Figure 1-5 An ocular fixator for SMILE surgery includes a negative pressure unit 1 for a negative pressure suction ocular fixator. An adjustment housing 3 is fixedly installed on one side of the negative pressure unit 1, and an adjustment mechanism is provided on the inner side of the adjustment housing 3. An adjustment slider 6 is slidably installed on the inner side of the adjustment housing 3. A support arm 7 is fixedly installed on one side of the adjustment slider 6, and an annular clip 8 is fixedly installed on the other end of the support arm 7. A replacement housing 9 is snapped onto the inner side of the annular clip 8, and a replacement mechanism is provided on the inner side of the replacement housing 9. A negative pressure suction cup is provided at the bottom of the replacement mechanism.

[0022] In this embodiment, a negative pressure regulator 2 is provided on one side of the negative pressure machine 1, and a telescopic tube 11 is fixedly installed on the output port of the negative pressure regulator 2 to facilitate the adjustment of the negative pressure.

[0023] In this embodiment, a negative pressure bottle 10 is fixedly installed on the top of the replacement shell 9, and the other end of the telescopic tube 11 is connected to the top of the negative pressure bottle 10 to facilitate the extraction of air between the eyeball and the suction cup body 22.

[0024] In this embodiment, the adjustment mechanism includes a ball screw 4 and an adjustment servo motor 5. The ball screw 4 is rotatably mounted on the inner wall of one side of the adjustment housing 3. The adjustment slider 6 is threaded onto the ball screw 4. The adjustment servo motor 5 is fixedly mounted on the top of the adjustment housing 3. The output shaft of the adjustment servo motor 5 is fixedly connected to the ball screw 4. The ball screw 4 can be rotated by the adjustment servo motor 5.

[0025] In this embodiment, the replacement mechanism includes a worm gear 12, a worm 13, a replacement servo motor 14, a linkage assembly, a guide plate 17, a clamping assembly, and a negative pressure suction cup. The worm gear 12 is rotatably mounted on the top inner wall of the replacement housing 9, and the worm 13 is rotatably mounted on one side inner wall of the replacement housing 9. The worm 13 and the worm gear 12 mesh with each other. The replacement servo motor 14 is fixedly mounted on the bottom inner wall of the replacement housing 9. The output shaft of the replacement servo motor 14 is fixedly connected to the worm 13. A linkage assembly is provided on the inner side of the replacement housing 9. A guide plate 17 is fixedly mounted on the inner side of the replacement housing 9. Multiple clamping assemblies are provided at the bottom of the guide plate 17. The bottom of each of the multiple clamping assemblies clamps the same negative pressure suction cup.

[0026] In this embodiment, the linkage component includes a linkage disk 15 and multiple linkage slots 16. The linkage disk 15 is rotatably installed on the inner side of the replacement housing 9. Multiple linkage slots 16 are opened at the bottom of the linkage disk 15, and multiple guide holes 18 are opened at the bottom of the guide disk 17.

[0027] In this embodiment, the clamping assembly includes a linkage post 19 and a limiting metal block 20. The linkage post 19 is slidably installed on the bottom inner wall of the linkage groove 16. The linkage post 19 is slidably installed in the corresponding guide hole 18. The limiting metal block 20 is slidably installed on the bottom of the guide plate 17. The top of the limiting metal block 20 is fixedly connected to the bottom end of the linkage post 19. The movement of the linkage post 19 can drive the limiting metal block 20 to move, thereby clamping the suction cup base 21.

[0028] In this embodiment, the negative pressure suction cup includes a suction cup base 21 and a suction cup body 22. The bottom of the guide plate 17 is provided with a suction cup base 21. The top of the suction cup base 21 is provided with multiple limiting grooves. Multiple limiting metal blocks 20 are respectively adapted to the corresponding limiting grooves. The suction cup body 22 is fixedly installed at the bottom of the suction cup base 21. The suction cup body 22 can be quickly replaced through the suction cup base 21.

[0029] Working principle: When replacing the negative pressure suction cup, the operator starts the replacement servo motor 14 via the control panel. The replacement servo motor 14 drives the worm gear 13 to rotate, which in turn drives the worm wheel 12. The worm wheel 12 then drives the linkage plate 15 to rotate, which in turn drives multiple linkage slots 16 to move around the center of the linkage plate 15. The movement of the multiple linkage slots 16 drives the corresponding linkage columns 19 to move. However, since the multiple linkage columns 19 are also slidably installed in the corresponding guide holes 18 on the guide plate 17, the movement trajectory of the multiple linkage columns 19 is restricted. The multiple linkage columns 19 can only move back and forth. The movement of the multiple linkage columns 19 drives the corresponding limit metal blocks 20 to move. The top of the suction cup base 21 has multiple limit slots, and the multiple limit metal blocks 20 are respectively adapted to the corresponding limit slots. The metal block 20 moves out of the corresponding limiting groove. At this time, medical staff can quickly disassemble and replace the suction cup base 21 connected to the suction cup body 22. When in use, the staff first moves the negative pressure machine 1 to the designated position, and then starts the adjustment servo motor 5 through the control panel. The adjustment servo motor 5 drives the ball screw 4 to rotate, which in turn drives the adjustment slider 6 to move. The adjustment slider 6 moves, which drives the support arm 7 to move, which in turn drives the ring clamp 8 to move. The inner side of the ring clamp 8 is fitted with a replacement shell 9. After the replacement shell 9 moves the suction cup body 22 to the designated position and contacts the eyeball, the staff starts the negative pressure machine 1. After the negative pressure machine 1 generates suction, the suction is adjusted by the negative pressure regulator 2. The air in the negative pressure bottle 10 is extracted through the telescopic tube 11 to generate negative pressure, so that the suction cup body 22 is more tightly connected to the eyeball.

[0030] The technological advancements of this invention compared to existing technologies are: the negative pressure suction cups can be quickly disassembled and replaced, facilitating postoperative disinfection and handling emergencies. It also allows for the replacement of different negative pressure suction cups according to different situations, thus adapting to patients with different conditions and increasing the practicality and applicability of the equipment.

Claims

1. An eye fixator for all-femtosecond SMILE surgery, characterized in that, Includes a negative pressure machine (1) for a negative pressure suction eye fixation device, wherein an adjustment housing (3) is fixedly installed on one side of the negative pressure machine (1), and an adjustment mechanism is provided on the inner side of the adjustment housing (3); An adjusting slider (6) is slidably installed on the inner side of the adjusting housing (3). A support arm (7) is fixedly installed on one side of the adjusting slider (6). An annular clip (8) is fixedly installed on the other end of the support arm (7). A replacement housing (9) is snapped onto the inner side of the annular clip (8). A replacement mechanism is provided on the inner side of the replacement housing (9). A negative pressure suction cup is provided at the bottom of the replacement mechanism.

2. The ocular fixator for SMILE surgery according to claim 1, characterized in that, A negative pressure regulator (2) is provided on one side of the negative pressure machine (1), and a telescopic pipe (11) is fixedly installed on the output port of the negative pressure regulator (2).

3. The eye fixator for all-femtosecond SMILE surgery according to claim 2, characterized in that, The top of the replacement outer shell (9) is fixedly installed with a negative pressure bottle (10), and the other end of the telescopic tube (11) is connected to the top of the negative pressure bottle (10).

4. The eye fixator for all-femtosecond SMILE surgery according to claim 1, characterized in that, The adjustment mechanism includes a ball screw (4) and an adjustment servo motor (5). The ball screw (4) is rotatably mounted on one inner wall of the adjustment housing (3). The adjustment slider (6) is threaded onto the ball screw (4). The adjustment servo motor (5) is fixedly mounted on the top of the adjustment housing (3). The output shaft of the adjustment servo motor (5) is fixedly connected to the ball screw (4).

5. The eye fixator for all-femtosecond SMILE surgery according to claim 1, characterized in that, The replacement mechanism includes a worm gear (12), a worm (13), a replacement servo motor (14), a linkage assembly, a guide plate (17), and a clamping assembly. The worm gear (12) is rotatably mounted on the top inner wall of the replacement housing (9), and the worm (13) is rotatably mounted on one inner wall of the replacement housing (9). The worm (13) and the worm gear (12) mesh with each other. The replacement servo motor (14) is fixedly mounted on the bottom inner wall of the replacement housing (9). The output shaft of the replacement servo motor (14) is fixedly connected to the worm (13). The inner side of the replacement housing (9) is provided with a linkage assembly. The inner side of the replacement housing (9) is fixedly mounted with a guide plate (17). The bottom of the guide plate (17) is provided with multiple clamping assemblies, and the bottom of the multiple clamping assemblies clamps the same negative pressure suction cup.

6. The eye fixator for all-femtosecond SMILE surgery according to claim 5, characterized in that, The linkage assembly includes a linkage disk (15) and multiple linkage slots (16). The linkage disk (15) is rotatably mounted on the inner side of the replacement housing (9). Multiple linkage slots (16) are provided at the bottom of the linkage disk (15), and multiple guide holes (18) are provided at the bottom of the guide disk (17).

7. The eye fixator for all-femtosecond SMILE surgery according to claim 6, characterized in that The clamping assembly includes a linkage column (19) and a limiting metal block (20). The linkage column (19) is slidably installed on the bottom inner wall of the linkage groove (16). The linkage column (19) is slidably installed in the corresponding guide hole (18). The limiting metal block (20) is slidably installed on the bottom of the guide plate (17). The top of the limiting metal block (20) is fixedly connected to the bottom end of the linkage column (19).

8. The eye fixator for all-femtosecond SMILE surgery according to claim 7, characterized in that, The negative pressure suction cup includes a suction cup base (21) and a suction cup body (22). The bottom of the guide plate (17) is provided with a suction cup base (21). The top of the suction cup base (21) is provided with multiple limiting grooves. Multiple limiting metal blocks (20) are respectively adapted to the corresponding limiting grooves. The bottom of the suction cup base (21) is fixedly installed with a suction cup body (22).

Images