Eyelid fixing device for ophthalmologic operation
By designing an eyelid fixing device for ophthalmic surgery that integrates masks, mounting rods, piston cylinders and collection mechanisms, the problem of difficult to control the flow of normal saline in ophthalmic surgery is solved, and automatic eyelid opening and cleaning is achieved, reducing the cost and safety risks of surgical personnel.
Patent Information
- Application Number
- CN202510397123.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2025-05-13
AI Technical Summary
In ophthalmic surgery, the prior art is difficult to effectively control the flow direction of normal saline, which leads to normal saline flowing everywhere and may flow to the hospital bed or the ground, increasing the difficulty of cleaning and safety risks.
An eyelid fixing device for ophthalmic surgery is designed, including a mask, a mounting rod, a piston cylinder, a piston block, a spring, a moving rod, an electric push rod, a strut rack, a cleaning mechanism and a collection mechanism. The device can automatically open the patient's eyelid through the cooperation of the electric push rod and the piston cylinder, and rinse the patient's eyelid through the universal tube. At the same time, a collection mechanism is set up to collect the flushed wastewater to prevent it from flowing to a place where it should not flow.
It effectively avoids fatigue and safety hazards caused by unstable handheld operators, reduces the cost of surgical personnel, and ensures the cleanliness of the surgical area through automated cleaning and collection processes, and reduces the difficulty of cleaning and safety hazards.
Smart Images
Figure CN119970122A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of medical devices, and in particular to an eyelid fixing device for ophthalmic surgery. Background Art
[0002] During ophthalmic surgery, the patient's eyelids are generally held open and fixed so that the patient cannot blink, in order to provide a clear surgical field of view, protect the eyeball and surrounding tissues, improve patient comfort, and ensure surgical safety.
[0003] During ophthalmic surgery, nurses and other professionals usually use eyelid retractors to manually open the patient's eyelids to prevent involuntary blinking when discomfort occurs during the operation. After the eyelids are opened, the eyes need to be manually rinsed with saline to ensure the cleanliness of the surgical area.
[0004] However, the existing surgery requires nurses with professional skills to perform special operations. During long operations, nurses and other operators may have unstable hand-holding effects. Moreover, during the flushing process, the flow of saline is difficult to control, causing the saline to easily flow along the face and may fall to the ground. In severe cases, it may cause the medical staff in the operation to fall, increasing safety hazards. Summary of the invention
[0005] In order to overcome the disadvantage that the flow direction of saline solution is difficult to control, which causes the saline solution to easily flow everywhere, flow onto the bed, and fall onto the ground, thereby greatly increasing the difficulty of cleaning, the present invention provides an eyelid fixing device for ophthalmic surgery.
[0006] The technical solution is: an eyelid fixing device for ophthalmic surgery, including a mask, mounting rods are connected to the front and back sides of the mask, piston cylinders are sleeved on the mounting rods, two piston blocks are slidably and sealedly connected in the piston cylinder, a spring is connected between the two piston blocks in the same piston cylinder, a first moving rod is connected to the piston block, the first moving rod slides through the piston cylinder, the first moving rod is connected to the second moving rod, an electric push rod is installed on the second moving rod, the upper end of the telescopic rod of the electric push rod is connected to a detachable opening frame, the opening frame is used to open the patient's eyelids, the mask is provided with a cleaning mechanism for flushing the patient's eyes, and the cleaning mechanism is located between the two eyes, and the mask is provided with a collecting mechanism for collecting waste water generated by flushing the eyes.
[0007] As a further preferred scheme, the cleaning mechanism includes a box body, a water outlet pipe, a first valve, a universal tube, a piston chamber, a piston rod, a first connecting pipe, a first connecting head, a one-way valve, a second connecting pipe, a second connecting head, a piston tube and a slider. The top of the mask is connected to the box body, the box body is connected to the water outlet pipe, the water outlet pipe is installed with a first valve, the water outlet pipe is connected to the universal tube, piston chambers are provided on the front and back sides of the box body, the piston chambers are both connected to the piston rods in a sliding and sealing manner, two first connecting pipes are connected to the box body, the first connecting pipes and the piston chamber are communicated, the first connecting pipes are connected to the first connecting head, the first connecting pipes are installed with a one-way valve, the piston cylinder is connected to the second connecting pipe, the second connecting pipes are rotatably sealed and connected to the second connecting head, the second connecting head is located in the first connecting head, and the second connecting head and the first connecting head are threadedly connected, the box body is connected to the piston tube, the piston tube is connected to the slider in a sliding and sealing manner, the slider extends into the box body and is connected to the two piston rods.
[0008] As a further preferred embodiment, the collecting mechanism includes an annular frame, a liquid guide plate, a collecting frame, a discharge pipe and a sealing plug. The bottom of the mask is connected to the annular frame, the front and rear sides of the top of the annular frame are connected to the liquid guide plate, the liquid guide plate is connected to the mask, the annular frame is connected to the collecting frame, the waste water generated by flushing the eyes will flow into the annular frame and flow into the collecting frame through the annular frame, the collecting frame is connected to the discharge pipe, and the lower end of the discharge pipe is connected to the sealing plug through a thread.
[0009] As a further preferred solution, it also includes an annular airbag, an air intake pipe and a second valve. The annular airbag is connected inside the annular frame, the annular airbag is connected to the air intake pipe, and the second valve is installed on the air intake pipe.
[0010] As a further preferred solution, it also includes a fixed block, a connecting frame and an insert block. The top of the mask is connected to the fixed block, the two piston cylinders are commonly connected to the connecting frame, the connecting frame is connected to the insert block, and the insert block is inserted into the fixed block.
[0011] As a further preferred solution, it also includes a connecting block and an elastic belt. The front and rear sides of the mask are both connected to the connecting blocks, and the elastic belt is connected between the two connecting blocks.
[0012] As a further preferred embodiment, a connecting belt and a dust plug are also included. The piston tube is connected to the connecting belt, and the connecting belt is connected to the dust plug for sealing the upper end of the piston tube.
[0013] As a further preferred solution, it also includes a limiting block, and the top of the water outlet pipe is connected with a limiting block for limiting the first valve.
[0014] As a further preferred solution, the mask is provided with a hollow circular ring structure near the eyes, and the inner edge of the circular ring abuts against the face, and the outer edge of the circular ring is integrally formed with the mask.
[0015] Compared with the prior art, the present invention has the following advantages: 1. The present invention provides a mask that can be covered on the face, and integrates the mounting rod, piston cylinder, piston block, spring, first moving rod, second moving rod, electric push rod, opening frame, cleaning mechanism and collection mechanism on the mask, thereby avoiding the phenomenon of fatigue of the operator holding the mask for a long time, and reducing the personnel cost of the operation. The opening frame can move away from each other to open and fix the patient's eyelids to provide a clear surgical field of view. The physiological saline can be sprayed on the patient's eyes through the universal tube to flush the patient's eyes, ensure the cleanliness of the surgical area, and avoid the accident of medical staff falling down. Moreover, the waste water generated by flushing the eyes will flow into the annular frame and flow into the collection frame along the annular frame, so as to control the flow of the waste water and collect the waste water to avoid the physiological saline from falling on the ground. In severe cases, it will affect the medical staff in the operation and cause them to fall down, increasing safety hazards.
[0016] 2. By injecting air into the annular airbag, the annular airbag can be expanded so that the annular airbag can fully contact the patient's face. The annular airbag can seal the gap between the annular frame and the patient's face to prevent wastewater leakage and ensure that all wastewater can flow into the annular frame. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 A three-dimensional structural schematic diagram of the present invention is shown.
[0018] Figure 2 The three-dimensional structural schematic diagram of the piston cylinder, the electric push rod and the support frame of the present invention is shown.
[0019] Figure 3 A three-dimensional structural schematic diagram of the first moving rod, the second moving rod, the electric push rod and the propping frame of the present invention is shown.
[0020] Figure 4 A cross-sectional view of a piston cylinder of the present invention is shown.
[0021] Figure 5 A first three-dimensional structural schematic diagram of the cleaning mechanism of the present invention is shown.
[0022] Figure 6 A second three-dimensional structural schematic diagram of the cleaning mechanism of the present invention is shown.
[0023] Figure 7 A cross-sectional view of the housing and piston tube of the present invention is shown.
[0024] Figure 8 A first three-dimensional structural schematic diagram of the collecting mechanism of the present invention is shown.
[0025] Fig. 9A second three-dimensional structural schematic diagram of the collecting mechanism of the present invention is shown.
[0026] Fig.10 A three-dimensional structural schematic diagram of the annular airbag, the air intake pipe and the second valve of the present invention is shown.
[0027] Fig.11 The three-dimensional structural schematic diagram of the fixing block, the connecting frame and the inserting block of the present invention is shown.
[0028] Fig.12 A schematic diagram of the three-dimensional structure of the connecting block and the elastic band of the present invention is shown.
[0029] Fig.13 A three-dimensional structural schematic diagram of the connecting belt and the dust plug of the present invention is shown.
[0030] Fig.14 A schematic diagram of the three-dimensional structure of the limit block of the present invention is shown.
[0031] The markings of the components in the accompanying drawings are as follows: 1. mask, 2. mounting rod, 3. piston cylinder, 4. piston block, 5. spring, 6. first moving rod, 7. second moving rod, 8. electric push rod, 9. support frame, 101. box body, 102. water outlet pipe, 103. first valve, 104. universal pipe, 105. piston chamber, 106. piston rod, 107. first connecting pipe, 108. first connecting head, 109. one-way valve, 1010. second connecting pipe , 1011, the second connecting head, 1012, the piston tube, 1013, the slider, 111, the annular frame, 112, the liquid guide plate, 113, the collecting frame, 114, the discharge pipe, 115, the sealing plug, 121, the annular air bag, 122, the air inlet pipe, 123, the second valve, 131, the fixing block, 132, the connecting frame, 133, the plug block, 141, the connecting block, 142, the elastic band, 151, the connecting band, 152, the dust plug, 16, the limit block. DETAILED DESCRIPTION
[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0033] Reference Figure 1-Figure 9, an eyelid fixing device for ophthalmic surgery, comprising a mask 1, a mounting rod 2, a piston cylinder 3, a piston block 4, a spring 5, a first moving rod 6, a second moving rod 7, an electric push rod 8, a propping frame 9, a cleaning mechanism and a collecting mechanism, the mask 1 is connected with mounting rods 2 on both the front and rear sides, the mounting rods 2 are sleeved with piston cylinders 3, the piston cylinders 3 are slidingly and sealingly connected with two piston blocks 4, a spring 5 is connected between the two piston blocks 4 in the same piston cylinder 3, the two piston blocks 4 in the same piston cylinder 3 are connected with the first moving rod 6 on the side away from each other, the first moving rod 6 slides through the piston cylinder 3, the first moving rod 6 is connected with the second moving rod 7, the second moving rod 7 is installed with electric push rods 8 by bolts, the upper ends of the telescopic rods of the electric push rods 8 are connected with a detachable propping frame 9, the mask 1 is provided with a cleaning mechanism for flushing the patient's eyes, and the cleaning mechanism is located between the eyes. In order to avoid the technical problem that the flow direction of saline solution is difficult to control during the flushing process, resulting in the saline solution easily flowing everywhere, the saline solution may flow onto the bed, and may fall onto the ground, thereby greatly increasing the difficulty of cleaning, a collection mechanism is also provided on the mask 1 for collecting waste water generated by flushing the eyes.
[0034] Reference Figure 5-Figure 7 The cleaning mechanism includes a box body 101, a water outlet pipe 102, a first valve 103, a universal tube 104, a piston chamber 105, a piston rod 106, a first connecting pipe 107, a first connector 108, a one-way valve 109, a second connecting pipe 1010, a second connector 1011, a piston tube 1012 and a slider 1013. The top right side of the mask 1 is connected to the box body 101, the middle of the left side of the box body 101 is connected to the water outlet pipe 102, the first valve 103 is installed on the water outlet pipe 102, the front and rear sides of the left side of the water outlet pipe 102 are connected to the universal tube 104, the front and rear sides of the box body 101 are provided with piston chambers 105, the piston chambers 105 are connected with piston rods 106 in a sliding and sealing manner, and the front and rear sides of the left side of the box body 101 are connected The first connecting pipe 107, the two first connecting pipes 107 are respectively connected to the two piston chambers 105, the first connecting pipes 107 are connected to the first connecting heads 108, the first connecting pipes 107 are installed with a one-way valve 109, the middle of the top of the piston cylinder 3 is connected to the second connecting pipe 1010, the second connecting pipe 1010 is rotatably sealed and connected with the second connecting head 1011, the two second connecting heads 1011 are respectively located in the two first connecting heads 108, and the second connecting head 1011 and the first connecting head 108 are connected by threads, the right side of the box body 101 is connected to the piston tube 1012, the piston tube 1012 is slidingly sealed and connected with a slider 1013, the slider 1013 extends into the box body 101 and is connected to the two piston rods 106.
[0035] Reference Figure 8 and Fig. 9The collecting mechanism includes an annular frame 111, a liquid guide plate 112, a collecting frame 113, a discharge pipe 114 and a sealing plug 115. The bottom of the mask 1 is connected to the annular frame 111, and the front and rear sides of the top of the annular frame 111 are connected to the liquid guide plates 112. The two liquid guide plates 112 are connected to the mask 1. The front and rear sides of the annular frame 111 are connected to the collecting frame 113, and the bottom of the collecting frame 113 is connected to the discharge pipe 114. The lower end of the discharge pipe 114 is connected to the sealing plug 115 through a thread.
[0036] Reference Fig.14 , and also includes a limiting block 16, and the top of the water outlet pipe 102 is connected to the limiting block 16.
[0037] The doctor puts the mask 1 on the patient's face and makes the stretching frame 9 contact with the patient's eyelids. If the stretching frame 9 cannot contact with the patient's eyelids, the telescopic rod of the electric push rod 8 can be controlled to extend and retract to drive the stretching frame 9 to move up and down, and adjust the position of the stretching frame 9 to make the stretching frame 9 contact with the patient's eyelids to adapt to patients with different eyelid positions. At this time, the annular frame 111 also contacts the patient's face, and then the doctor adjusts the universal tube 104 to align the universal tube 104 with the patient's eyes, and then injects saline into the piston tube 1012. The saline pushes the slider 1013 and the piston rod 106 to move leftward, and the piston rod 106 pushes the air in the piston chamber 105. The air in the piston chamber 105 passes through the first connecting tube 107 and the first connecting head 1 08. The second connector 1011 and the second connecting tube 1010 enter the piston cylinder 3, and the air pushes the piston block 4, causing the two piston blocks 4 to move away from each other. The spring 5 is stretched, and the piston block 4 drives the first moving rod 6 and the second moving rod 7 to move, thereby driving the electric push rod 8 and the opening frame 9 to move. The two opening frames 9 move away from each other to open and fix the patient's eyelids to provide a clear surgical field of view. When the slider 1013 completely enters the box 101, the patient's eyelids are just opened, and the physiological saline no longer pushes the slider 1013, and the slider 1013 stops moving. Under the action of the one-way valve 109, the air in the piston cylinder 3 cannot flow into the piston cavity 105, so the opening frame 9 will not occur. The doctor moves the mask 1 so that the patient's eyelids can remain open, and saline solution will enter the box body 101. Then the doctor opens the first valve 103, and the saline solution is sprayed out from the universal tube 104 through the outlet pipe 102, sprayed onto the patient's eyes, and the patient's eyes are rinsed to ensure the cleanliness of the surgical area. The waste water generated by rinsing the eyes will flow into the annular frame 111, and flow into the collection frame 113 along the annular frame 111. The waste water splashed on the mask 1 will flow into the liquid guide plate 112, and flow into the annular frame 111 along the liquid guide plate 112. The flow of waste water is controlled and collected to prevent waste water from flowing onto the bed, thereby reducing the difficulty of cleaning. When the waste water in the collection frame 113 needs to be discharged, the sealing plug 115 can be opened. After the patient's eyes are rinsed, the first valve 103 is closed, and the limit block 16 can limit the first valve 103 to prevent the first valve 103 from turning too far, and then the operation is performed. During the operation, if the patient's eyes need to be rinsed, the first valve 103 can be opened and the patient's eyes can be rinsed again. After the operation is completed, the mask 1 is removed from the patient's face, and then the piston cylinder 3 is removed from the mounting rod 2, and then the second connector 1011 is screwed out of the first connector 108. Under the action of the spring 5, the two piston blocks 4 move toward each other, and the air in the piston cylinder 3 is discharged through the second connecting pipe 1010. The piston cylinder 3 can be recycled, and the support frame 9 can be disassembled and replaced to save resources.
[0038] Reference Fig.10 , also includes an annular airbag 121, an air intake pipe 122 and a second valve 123. The annular airbag 121 is connected inside the annular frame 111, the right side of the annular airbag 121 is connected to the air intake pipe 122, and the second valve 123 is installed on the air intake pipe 122.
[0039] The doctor puts the mask 1 on the patient's face, then connects the air inlet pipe 122 to an air pump, opens the second valve 123, and then injects air into the air inlet pipe 122 through the air pump. The air flows into the annular airbag 121 through the air inlet pipe 122, so that the annular airbag 121 expands and makes full contact with the patient's face. The annular airbag 121 can seal the gap between the annular frame 111 and the patient's face to avoid wastewater leakage and ensure that all wastewater can flow into the annular frame 111.
[0040] Reference Fig.11 , also includes a fixing block 131, a connecting frame 132 and an insert block 133. The front and rear sides of the right side of the top of the mask 1 are connected to the fixing block 131, the right sides of the two piston cylinders 3 are commonly connected to the connecting frame 132, and the front and rear sides of the right side of the connecting frame 132 are connected to the insert blocks 133. The two insert blocks 133 are respectively inserted into the two fixing blocks 131.
[0041] The insert block 133 is inserted into the fixed block 131, so that the fixed block 131 can support the piston cylinder 3 and improve the stability of the piston cylinder 3. When the piston cylinder 3 needs to be removed from the mounting rod 2, the connecting frame 132 is pulled to the right, and the connecting frame 132 drives the piston cylinder 3 and the insert block 133 to move to the right, the insert block 133 will be moved out of the fixed block 131, and the piston cylinder 3 will be removed from the mounting rod 2.
[0042] Reference Fig.12 , also includes a connecting block 141 and an elastic belt 142. The front and rear sides of the right part of the mask 1 are connected to the connecting blocks 141, and the elastic belt 142 is connected between the two connecting blocks 141.
[0043] The doctor puts the mask 1 on the patient's face and puts the elastic band 142 on the patient's head to prevent the mask 1 from falling off the patient's face.
[0044] Reference Fig.13 , also includes a connecting belt 151 and a dust plug 152. The upper part of the piston tube 1012 is connected to the connecting belt 151, and the connecting belt 151 is connected to the dust plug 152 for sealing the upper end of the piston tube 1012.
[0045] The doctor pulls out the dust plug 152 from the piston tube 1012, then injects physiological saline into the piston tube 1012 to rinse the patient's eyes. After the patient's eyes are rinsed, the doctor inserts the dust plug 152 into the piston tube 1012 to seal the upper end of the piston tube 1012 to prevent dust from floating into the piston tube 1012.
[0046] Furthermore, the mask 1 is provided with a hollow circular ring structure near the eyes, and the inner edge of the circular ring abuts against the face, and the outer edge of the circular ring is integrally formed with the mask. This can prevent saline from flowing between the mask and the face, thereby better collecting saline. Moreover, the mask 1 can be a sterilized mask, and the collected saline can be recycled.
[0047] The above description is only an example of the present invention and is not intended to limit the present invention. Any equivalent substitutions made within the principles of the present invention should be included in the protection scope of the present invention. The contents not elaborated in detail in the present invention belong to the existing technologies known to those skilled in the art.
Claims
1. An eyelid fixing device for ophthalmic surgery, comprising a mask (1), characterized in that: The mask (1) is connected to mounting rods (2) on both the front and rear sides, and a piston cylinder (3) is sleeved on the mounting rods (2). Two piston blocks (4) are slidably and sealably connected in the piston cylinder (3). A spring (5) is connected between the two piston blocks (4) in the same piston cylinder (3). The piston blocks (4) are connected to first moving rods (6), which slide through the piston cylinder (3). The first moving rods (6) are connected to second moving rods (7), and electric push rods (8) are installed on the second moving rods (7). The upper ends of the telescopic rods of the electric push rods (8) are connected to detachable opening frames (9), and the opening frames (9) are used to open the eyelids of the patient. The mask (1) is provided with a cleaning mechanism for washing the patient's eyes, and the cleaning mechanism is located between the two eyes. The mask (1) is provided with a collecting mechanism for collecting waste water generated by washing the eyes.
2. An eyelid fixing device for ophthalmic surgery according to claim 1, characterized in that: The cleaning mechanism comprises a box (101), a water outlet pipe (102), a first valve (103), a universal tube (104), a piston chamber (105), a piston rod (106), a first connecting pipe (107), a first connecting head (108), a one-way valve (109), a second connecting pipe (1010), a second connecting head (1011), a piston tube (1012) and a slider (1013). The top of the mask (1) is connected to the box (101), the box (101) is connected to the water outlet pipe (102), the first valve (103) is installed on the water outlet pipe (102), the universal tube (104) is connected to the water outlet pipe (102), the piston chamber (105) is provided on both the front and rear sides of the box (101), the piston chamber (105) is connected to the piston rod (106) in a sliding and sealing manner, the box (101) is connected to the Two first connecting pipes (107) are connected, the first connecting pipes (107) and the piston chamber (105) are communicated, the first connecting pipes (107) are connected to the first connecting head (108), the first connecting pipes (107) are installed with a one-way valve (109), the piston cylinder (3) is connected to the second connecting pipe (1010), the second connecting pipe (1010) is rotatably sealed and connected to the second connecting head (1011), the second connecting head (1011) is located in the first connecting head (108), and the second connecting head (1011) and the first connecting head (108) are connected by threads, the box body (101) is connected to the piston tube (1012), the piston tube (1012) is slidably sealed and connected to a slider (1013), the slider (1013) extends into the box body (101) and is connected to the two piston rods (106).
3. An eyelid fixing device for ophthalmic surgery as claimed in claim 2, characterized in that: The collecting mechanism comprises an annular frame (111), a liquid guide plate (112), a collecting frame (113), a discharge pipe (114) and a sealing plug (115); the bottom of the mask (1) is connected to the annular frame (111); the front and rear sides of the top of the annular frame (111) are both connected to the liquid guide plates (112); the liquid guide plates (112) are connected to the mask (1); the annular frame (111) is connected to the collecting frame (113); waste water generated by flushing the eyes flows into the annular frame (111) and flows into the collecting frame (113) through the annular frame (111); the collecting frame (113) is connected to the discharge pipe (114); the lower end of the discharge pipe (114) is connected to the sealing plug (115) through a thread.
4. An eyelid fixing device for ophthalmic surgery as claimed in claim 3, characterized in that: It also includes an annular airbag (121), an air intake pipe (122) and a second valve (123); the annular airbag (121) is connected inside the annular frame (111); the annular airbag (121) is connected to the air intake pipe (122); and the second valve (123) is installed on the air intake pipe (122).
5. An eyelid fixing device for ophthalmic surgery as claimed in claim 4, characterized in that: It also includes a fixed block (131), a connecting frame (132) and an inserting block (133); the top of the mask (1) is connected to the fixed block (131); the two piston cylinders (3) are commonly connected to the connecting frame (132); the connecting frame (132) is connected to the inserting block (133); and the inserting block (133) is inserted into the fixed block (131).
6. An eyelid fixing device for ophthalmic surgery as claimed in claim 5, characterized in that: It also comprises a connecting block (141) and an elastic band (142); the front and rear sides of the mask (1) are both connected to the connecting blocks (141); and the elastic band (142) is connected between the two connecting blocks (141).
7. An eyelid fixing device for ophthalmic surgery according to claim 6, characterized in that: It also includes a connecting belt (151) and a dust plug (152); the piston tube (1012) is connected to the connecting belt (151); the connecting belt (151) is connected to the dust plug (152) for sealing the upper end of the piston tube (1012).
8. An eyelid fixing device for ophthalmic surgery as claimed in claim 7, characterized in that: It also includes a limiting block (16), and the top of the water outlet pipe (102) is connected to the limiting block (16) for limiting the first valve (103).
9. An eyelid fixing device for ophthalmic surgery as claimed in claim 7, characterized in that: The mask (1) is provided with a hollow circular ring structure near the eyes, and the inner edge of the circular ring abuts against the face, while the outer edge of the circular ring is integrally formed with the mask.