CN113288575A

CN113288575A - Clamping device with accurate positioning function for ophthalmic surgery

Info

Publication number: CN113288575A
Application number: CN202110575584.5A
Authority: CN
Inventors: 梁国宁
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-05-26
Filing date: 2021-05-26
Publication date: 2021-08-24

Abstract

The invention relates to a clamping device, in particular to a clamping device with accurate positioning for ophthalmic surgery. It at least comprises: the supporting pillow comprises a supporting pillow body, a clamping mechanism and an eye positioning mechanism, two symmetrical adjusting grooves are formed in the edge of the top of the supporting pillow body, adjusting screw rods are arranged in the adjusting grooves in a rotating mode, the clamping mechanism is provided with two symmetrical adjusting blocks, the bottom of the supporting frame is provided with an adjusting block, the cross section of the adjusting block is matched with the inner size of the adjusting groove, the two adjusting blocks are arranged in the two adjusting grooves in a sliding mode respectively, adjusting screw holes are formed in the surfaces of the adjusting blocks, the inner portions of the adjusting screw holes are in threaded fit with the outer wall of the adjusting screw rods, the outer wall of the supporting frame is provided with two symmetrical clamping blocks, and the clamping blocks are air bags made of elastic rubber.

Description

Clamping device with accurate positioning function for ophthalmic surgery

Technical Field

The invention relates to a clamping device, in particular to a clamping device with accurate positioning for ophthalmic surgery.

Background

Ophthalmology is the research and takes place in visual system, including eyeball and the discipline of the relevant disease of its associated tissue, need examine patient's eye when treating ophthalmic patient, at present when examining patient's eye, can not carry out effectual location to patient's head, make the patient rock easily, influence normal examination, and inconvenient fix a position patient's eye, can not fix a position the inspection to eye position when making medical personnel's inspection, lead to the inspection result inaccurate, in view of this, we provide a clamping device for ophthalmic surgery with accurate location.

Disclosure of Invention

The present invention is directed to a clamping device for ophthalmic surgery with precise positioning, which solves the above problems of the prior art.

To achieve the above object, the present invention provides a clamping device for ophthalmic surgery with precise positioning, comprising at least:

the adjusting mechanism comprises a supporting pillow, wherein two symmetrical adjusting grooves are formed in the edge of the top of the supporting pillow, an adjusting screw rod is rotatably arranged in each adjusting groove, a driven bevel gear is arranged on the outer wall, close to the end part, of each adjusting screw rod, a driving bevel gear is connected to the outer wall of each driven bevel gear in a meshed mode, a connecting rod is fixedly connected to the end part of each driving bevel gear, the end part of each connecting rod rotatably extends out of the corresponding adjusting groove, and a turntable is fixedly connected to the inner part of each adjusting groove and is in a disc shape;

when the supporting pillow in the embodiment is used specifically, the supporting pillow is placed on a sickbed for ophthalmologic examination, so that the head of a patient can be rested at the center of the top of the supporting pillow, and the two adjusting grooves are positioned at the left side and the right side of the head of the patient, so that the ophthalmologic examination of the patient is more comfortable.

The clamping mechanism is provided with two symmetrical clamping blocks, the clamping mechanism comprises a support frame, adjusting blocks are arranged at the bottom of the support frame, the size of the cross section of each adjusting block is matched with the size of the inside of each adjusting groove, the two adjusting blocks are respectively arranged inside the two adjusting grooves in a sliding mode, adjusting screw holes are formed in the surfaces of the adjusting blocks, the insides of the adjusting screw holes are in threaded fit connection with the outer wall of each adjusting screw rod, the outer wall of the support frame is provided with the two symmetrical clamping blocks, and the clamping blocks are air bags made of elastic rubber;

fixture in this embodiment when specifically using, hold the carousel and rotate, it rotates to drive the connecting rod, thereby drive initiative conical gear and rotate inside the adjustment tank, can make the screw thread slip of the regulation silk downthehole portion on adjustment block surface along the accommodate the lead screw outer wall, thereby can drive two adjustment blocks respectively and slide respectively in two adjustment tank insides, thereby make the support frame horizontal slip, make two support frames draw close to patient's head, the grip block can move along with the support frame, make the grip block draw close patient's head, spacing fixing patient's head between two grip blocks, thereby fix patient's head.

The eye positioning mechanism is provided with two symmetries, the eye positioning mechanism slides and sets up the support frame internal surface, the eye positioning mechanism includes the telescopic link, the telescopic link tip is provided with the movable plate, the movable plate slides and sets up inside the support frame, the telescopic link tip is provided with the eyelid and opens the device, the eyelid opens the device and includes the spacing frame of two symmetries, spacing frame is "U" word form, the spout has been seted up to spacing frame tip, two symmetries slide between the spout and be provided with the sliding plate, the sliding plate tip is provided with the limiting plate.

When the eye positioning mechanism in the embodiment is used specifically, the eye positioning mechanism is adjusted up and down, the movable plate slides inside the support frame, the height of the eye positioning mechanism is adjusted, the two symmetrical limiting frames are positioned above the eyes of a patient, and then the limiting frames move downwards along with the movable plate, so that the bottoms of the limiting frames are close to the skin around the eyes of the patient, and the eyes of the patient are positioned.

As a further improvement of the technical scheme, the top of the support pillow close to the center is provided with an arc-shaped groove, the arc-shaped groove is positioned between the two adjusting grooves, a plurality of massage bulges are arranged in the arc-shaped groove at equal intervals, and the massage bulges are in a hemispherical shape.

As a further improvement of the technical scheme, the outer wall of the adjusting block is provided with two symmetrical rotating grooves, a plurality of rollers are arranged in the rotating grooves in an equidistant rotating mode and are in a cylindrical shape, and the outer wall of each roller is tightly attached to the inner wall of the adjusting groove.

As a further improvement of the technical scheme, a plurality of air holes are formed in the surface of the clamping block at equal intervals, the outer wall of the clamping block is communicated with an inflation tube, and a sealing cover is sleeved at the end part of the inflation tube.

As a further improvement of the technical scheme, the telescopic rod comprises a fixed rod, a movable rod is arranged inside the fixed rod in a sliding mode, a plurality of connecting screw holes are formed in the outer wall of the movable rod at equal intervals, an extruding bolt is connected to the outer wall of the fixed rod close to the end portion in a threaded mode, and the extruding bolt is connected with the inner portion of the connecting screw holes in a threaded matching mode.

As a further improvement of the technical scheme, a movable screw rod is arranged in the support frame in a rotating mode, the end portion of the movable screw rod extends out in a rotating mode, a movable motor output shaft is connected to the inside of the support frame, a movable screw hole is formed in the surface of the movable plate, and the inside of the movable screw hole is in threaded fit connection with the outer wall of the movable screw rod.

As a further improvement of the technical scheme, a conveying groove is formed in the edge of the top of the limiting frame, two symmetrical conveying plates are arranged inside the conveying groove in a sliding mode, the conveying plates are L-shaped, and conveying wire holes are formed in the surfaces, close to the end portions, of the conveying plates.

As a further improvement of the technical scheme, two symmetrical conveying screw rods are rotatably arranged inside the conveying groove, the conveying screw holes are connected with the outer wall of each conveying screw rod in a threaded fit mode, and the bottom, close to the end, of each conveying plate is provided with an opening plate.

As a further improvement of the technical scheme, the end part of the opening plate is provided with a silica gel hook which is in an L shape and is made of elastic silica gel.

As a further improvement of the technical scheme, a power cavity is formed in the center of the inner portion of the conveying groove, the end portions of the conveying screw rods rotate to stretch into the power cavity, a first bevel gear is connected to the inner portion of the power cavity, a second bevel gear is connected between the first bevel gear in a meshed mode, the end portion of the second bevel gear is connected with an output shaft of a conveying motor, and the outer wall of the conveying motor is fixedly arranged at the top of the power cavity.

Compared with the prior art, the invention has the beneficial effects that:

1. in this clamping device for ophthalmic surgery with accurate location, through setting up fixture, when accommodate the lead screw rotates, can make the screw thread slip of the adjusting screw downthehole portion along the accommodate the lead screw outer wall on regulating block surface, thereby can drive two regulating blocks respectively and slide in two adjustment tank insides, thereby make the support frame horizontal slip, conveniently make two support frames draw close to patient's head, the grip block can move along with the support frame, make the grip block draw close patient's head, spacing the fixing of patient's head between two grip blocks, thereby fix patient's head, avoid when ophthalmic examination, the head rocks, lead to the inspection inaccurate.

2. Among this clamping device for ophthalmic surgery with accurate location, through setting up eye positioning mechanism, adjust eye positioning mechanism from top to bottom, make the movable plate slide inside the support frame, adjust eye positioning mechanism's height, be located patient's eye top with the spacing frame of two symmetries, then spacing frame is along with the movable plate downstream, make the skin around the inseparable patient's eye of spacing frame bottom, fix a position patient's eye, be favorable to improving medical personnel's inspection to patient's eye, it is fixed to make patient's eye pinpoint, the practicality is stronger.

3. Among this clamping device for ophthalmic surgery with accurate location, open the device through setting up the eyelid, when the conveying lead screw rotates, can make conveying silk hole on conveying plate surface inside along conveying lead screw outer wall screw thread slip, thereby drive two conveying boards and slide in the conveying inslot portion, make the silica gel hook be located patient eyelid department, open the board and can remove along with the conveying board, make the eyelid that opens the board and aim at the patient of two symmetries, prop open patient's eyelid, make things convenient for follow-up eye examination that carries on, the practicality is stronger.

4. In this clamping device for ophthalmic surgery with accurate location, through setting up the cylinder, slide when the adjustment block is inside the adjustment tank, drive the cylinder and rotate and rotating inside the rotation tank, make the cylinder outer wall roll along the adjustment tank is inside, reduce the adjustment block with the frictional resistance of adjustment tank inner wall avoids the adjustment block to slide for a long time and seriously damages at the inside wearing and tearing of adjustment tank, is favorable to improving life.

5. In this clamping device for ophthalmic surgery with accurate location, through setting up the telescopic link, the push-and-pull movable rod can adjust the movable rod lower extreme and slide at the inside distance of dead lever to adjust the length of telescopic link, conveniently adjust the length of telescopic link according to different patients, make spacing frame can be located the eye directly over, thereby fix a position the restriction to the eye, then pass inside one of them connection screw through extrusion bolt tip screw, make the movable rod fix inside the dead lever, guarantee structural integrity.

Drawings

FIG. 1 is a schematic view of the entire structure of embodiment 1;

FIG. 2 is a schematic view of the structure of the support pillow of embodiment 1;

FIG. 3 is a schematic structural view of a lead screw according to embodiment 1;

FIG. 4 is a schematic structural view of a chucking mechanism according to embodiment 1;

FIG. 5 is a schematic view of the supporting frame of embodiment 1;

FIG. 6 is an exploded view of the adjusting block of embodiment 1;

FIG. 7 is a schematic view of the structure of the holding block of embodiment 1;

FIG. 8 is a schematic structural view of an eye positioning mechanism according to embodiment 1;

FIG. 9 is an exploded view of the telescopic rod of embodiment 1;

FIG. 10 is a schematic view showing the construction of the eyelid retractor of embodiment 1;

fig. 11 is a schematic structural view of a limiting frame in embodiment 1;

FIG. 12 is a schematic view of the structure of the transfer plate of example 1;

fig. 13 is a partially exploded view of the structure of the position-limiting frame of embodiment 1;

fig. 14 is a schematic view of the sliding panel structure of embodiment 1.

The various reference numbers in the figures mean:

100. a support pillow; 110. an arc-shaped slot; 111. massaging the bumps; 120. an adjustment groove; 121. adjusting the screw rod; 122. a driven bevel gear; 123. a driving bevel gear; 124. a connecting rod; 125. a turntable;

200. a clamping mechanism; 210. a support frame; 211. an adjusting block; 2110. adjusting the screw hole; 2111. a rotating groove; 2112. a drum; 212. moving the screw rod; 2120. a moving motor; 220. a clamping block; 221. air holes are formed; 222. an inflation tube; 223. a sealing cover;

300. an eye positioning mechanism; 310. a telescopic rod; 311. fixing the rod; 312. extruding the bolt; 313. a movable rod; 314. a connecting screw hole; 320. an eyelid retractor; 321. a limiting frame; 3210. a chute; 3211. a transfer slot; 3212. a power cavity; 3213. a conveying screw rod; 3214. a first bevel gear; 3215. a second bevel gear; 3216. a transfer motor; 322. a transfer plate; 3220. a transfer filament aperture; 3221. opening the plate; 3222. a silicone hook; 323. a sliding plate; 3230. a limiting plate; 330. moving the plate; 331. and moving the filament hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1 to 14, the present embodiment provides a clamping device for ophthalmic surgery with precise positioning, which at least includes:

the supporting pillow 100 is characterized in that two symmetrical adjusting grooves 120 are formed in the edge of the top of the supporting pillow 100, an adjusting screw rod 121 is rotatably arranged in each adjusting groove 120, a driven bevel gear 122 is arranged on the outer wall, close to the end portion, of each adjusting screw rod 121, a driving bevel gear 123 is connected to the outer wall of each driven bevel gear 122 in a meshed mode, when each driving bevel gear 123 rotates, each driven bevel gear 122 can rotate in a meshed mode, so that each adjusting screw rod 121 can be driven to rotate in each adjusting groove 120, a connecting rod 124 is fixedly connected to the end portion of each driving bevel gear 123, the end portion of each connecting rod 124 rotates to extend out of the corresponding adjusting groove 120, each rotating disk 125 is in a disc shape, each rotating disk 125 is held to rotate, each connecting rod 124 is conveniently driven to rotate, each driving bevel gear 123 is driven to rotate in each adjusting groove 120, and operation is convenient;

when the support pillow 100 in this embodiment is used specifically, the support pillow 100 is placed on a hospital bed for ophthalmologic examination, so that the head of a patient can be rested on the center of the top of the support pillow 100, and the two adjustment grooves 120 are located on the left and right sides of the head of the patient, so that the ophthalmologic examination of the patient is more comfortable.

The clamping mechanism 200, the clamping mechanism 200 is provided with two symmetrical clamping blocks 220, the clamping mechanism 200 comprises a support frame 210, the bottom of the support frame 210 is provided with an adjusting block 211, the size of the cross section of the adjusting block 211 is matched with the size of the inside of the adjusting groove 120, the two adjusting blocks 211 are respectively arranged inside the two adjusting grooves 120 in a sliding manner, the surface of the adjusting block 211 is provided with an adjusting screw hole 2110, the inside of the adjusting screw hole 2110 is in threaded fit connection with the outer wall of the adjusting screw 121, when the adjusting screw 121 rotates, the inside of the adjusting screw hole 2110 on the surface of the adjusting block 211 can slide along the threads on the outer wall of the adjusting screw 121, so that the two adjusting blocks 211 can be respectively driven to slide inside the two adjusting grooves 120, the support frame 210 can slide left and right, the two support frames 210 can be conveniently drawn close to the head of a patient, the outer wall of, the clamping blocks 220 are close to the head of the patient, the head of the patient is limited and fixed between the two clamping blocks 220, so that the head of the patient is fixed, the problem that the head shakes during ophthalmologic examination to cause inaccurate examination is avoided, the clamping blocks 220 are air bags made of elastic rubber, and when the clamping blocks 220 contact the head of the patient, the head of the patient is prevented from being damaged by extruded rigid impact under the action of the inflated elastic force of the clamping blocks 220, so that the head of the patient is clamped more comfortably;

clamping mechanism 200 in this embodiment is when specifically using, it rotates to hold carousel 125, it rotates to drive connecting rod 124, thereby drive initiative conical gear 123 and rotate inside adjustment tank 120, can make inside the screw thread slip along accommodate the lead screw 121 outer wall of adjusting screw hole 2110 on adjusting block 211 surface, thereby can drive two adjusting blocks 211 respectively and slide inside two adjustment tank 120, thereby make support frame 210 horizontal slip, make two support frames 210 draw close to patient's head, grip block 220 can move along with support frame 210, make grip block 220 draw close patient's head, spacing the fixing of patient's head between two grip blocks 220, thereby fix patient's head.

The eye positioning mechanism 300 is provided with two symmetrical eye positioning mechanisms 300, the eye positioning mechanism 300 is arranged on the inner surface of a support frame 210 in a sliding manner, the eye positioning mechanism 300 comprises an expansion link 310, a moving plate 330 is arranged at the end part of the expansion link 310, the moving plate 330 is arranged inside the support frame 210 in a sliding manner, the eye positioning mechanism 300 is adjusted up and down to enable the moving plate 330 to slide inside the support frame 210, the height of the eye positioning mechanism 300 is convenient to adjust, so that the eye positioning mechanism is suitable for heads of different patients, an eyelid opening device 320 is arranged at the end part of the expansion link 310, the eyelid opening device 320 comprises two symmetrical limiting frames 321, the limiting frames 321 are in a U shape, sliding grooves 3210 are formed at the end part of the limiting frames 321, a sliding plate 323 is arranged between the two symmetrical sliding grooves 3210, a limiting plate 3230 is arranged at the end part of the sliding plate 323, and the end part of the sliding plate 323 can be limited by arranging the limiting plate 3230, thereby avoid the inside roll-off of sliding plate 323 tip from spout 3210 to influence normal use, be located patient's eye top with two symmetrical spacing frames 321, then spacing frame 321 makes the inseparable skin around the patient's eye in spacing frame 321 bottom along with movable plate 330 downstream, fixes a position patient's eye, is favorable to improving medical personnel to the inspection of patient's eye, makes patient's eye pinpoint fixedly, and the practicality is stronger.

When the eye positioning mechanism 300 in this embodiment is used specifically, the eye positioning mechanism 300 is adjusted up and down, so that the moving plate 330 slides inside the supporting frame 210, the height of the eye positioning mechanism 300 is adjusted, the two symmetrical limiting frames 321 are positioned above the eyes of the patient, and then the limiting frames 321 move downward along with the moving plate 330, so that the bottoms of the limiting frames 321 are close to the skin around the eyes of the patient, and the eyes of the patient are positioned.

In this embodiment, support pillow 100 and seted up arc wall 110 near the top of center department, arc wall 110 is located between two adjustment tank 120, and arc wall 110 is inside equidistant a plurality of massage protruding 111 that are provided with, and massage protruding 111 is "hemisphere" form, and patient's head can be rested head inside arc wall 110, and under the effect of gravity, makes the protruding 111 in close contact with patient's head of massage, can extrude the massage to patient's head, makes the patient more comfortable.

Wherein, two symmetrical rotation grooves 2111 are seted up to regulating block 211 outer wall, the inside equidistant rotation of rotation groove 2111 is provided with a plurality of cylinders 2112, cylinder 2112 is "cylinder" form, cylinder 2112 outer wall and the inseparable laminating of regulating groove 120 inner wall, slide when regulating block 211 is inside regulating groove 120, drive cylinder 2112 and rotate inside rotating groove 2111, make cylinder 2112 outer wall roll along regulating groove 120 is inside, reduce the frictional resistance of regulating block 211 and regulating groove 120 inner wall, avoid regulating block 211 to slide at the inside serious damage of wearing and tearing of regulating groove 120 for a long time, be favorable to improving life.

It is worth to say, a plurality of air vents 221 are formed in the surface of the clamping block 220 at equal intervals, when the clamping block 220 contacts the head of a patient, air can be conducted through the inside of the air vents 221, discomfort caused by the fact that the clamping block 220 covers the head of the patient is avoided, the outer wall of the clamping block 220 is communicated with the inflation tube 222, the end portion of the inflation tube 222 is sleeved with the sealing cover 223, the sealing cover 223 is pulled out to enable the end portion of the inflation tube 222 to inflate the inside of the clamping block 220, gas can be conveniently supplemented into the clamping block 220 at any time, the service life is prolonged, the sealing cover 223 is sleeved at the end portion of the inflation tube 222, and gas inside the clamping block 220 can be prevented from leaking from the end portion of the inflation tube 222.

Further, the telescopic link 310 includes dead lever 311, the inside slip of dead lever 311 is provided with movable rod 313, the equidistant a plurality of connection screw holes 314 that are provided with of movable rod 313 outer wall, the outer wall threaded connection that dead lever 311 is close to the tip has extrusion bolt 312, extrusion bolt 312 is connected with the inside screw-thread fit of connection screw hole 314, push-and-pull movable rod 313, can adjust the slip of movable rod 313 lower extreme at the inside distance of dead lever 311, thereby adjust the length of telescopic link 310, the length of telescopic link 310 is conveniently adjusted according to different patients, make spacing frame 321 can be located the eye directly over, thereby fix a position the restriction to the eye, then pass inside one of them connection screw hole 314 through extrusion bolt 312 tip screw, make movable rod 313 fix inside dead lever 311, guarantee structural integrity.

Furthermore, a movable screw rod 212 is rotatably arranged inside the support frame 210, an output shaft of a movable motor 2120 is connected to the end of the movable screw rod 212, which extends out of the support frame 210, an output shaft of the movable motor 2120 is connected to the surface of the movable plate 330, the inner portion of the movable screw rod 331 is in threaded fit with the outer wall of the movable screw rod 212, the movable motor 2120 is powered on to work, the output shaft of the movable motor 2120 drives the movable screw rod 212 to rotate, and therefore the inner portion of the movable screw rod 331 on the surface of the movable plate 330 slides along the threads on the outer wall of the movable screw rod 212, the movable plate 330 is driven to move up and down inside the support frame 210, and operation is convenient.

In addition, the top edge of the limiting frame 321 is provided with a conveying groove 3211, two symmetrical conveying plates 322 are slidably arranged in the conveying groove 3211, the conveying plates 322 are L-shaped, and the surface of the conveying plates 322 close to the end portion is provided with a conveying wire hole 3220.

Specifically, the inside rotation of conveying groove 3211 is provided with the conveying lead screw 3213 of two symmetries, conveying silk hole 3220 is inside to be connected with conveying lead screw 3213 outer wall screw-thread fit, when conveying lead screw 3213 rotates, can make conveying silk hole 3220 on conveying board 322 surface inside along conveying lead screw 3213 outer wall screw-thread slide, thereby drive two conveying boards 322 and slide in conveying groove 3211 is inside, the bottom that conveying board 322 is close to the tip is provided with opens board 3221, it can remove along with conveying board 322 to open board 3221, make the eyelid of patient is aimed at to two symmetrical opening boards 3221, prop open patient's eyelid, make things convenient for follow-up to carry out the eye inspection, the practicality is stronger.

Wherein, open the board 3221 tip and be provided with silica gel hook 3222, silica gel hook 3222 is "L" form, and silica gel hook 3222 adopts elasticity silica gel material, makes silica gel hook 3222 be located patient eyelid department, and the damage of silica gel hook 3222 of elasticity silica gel material to patient's eye is little, can be more accurate strut patient's eyelid.

Specifically, a power cavity 3212 is arranged at the center inside a transmission groove 3211, the ends of two transmission screws 3213 extend into the power cavity 3212 to be connected with a first bevel gear 3214, a second bevel gear 3215 is engaged and connected between the two first bevel gears 3214, the end of the second bevel gear 3215 is connected with an output shaft of a transmission motor 3216, the outer wall of the transmission motor 3216 is fixedly arranged at the top of the power cavity 3212, the transmission motor 3216 is powered on to operate, the output shaft of the transmission motor 3216 drives the second bevel gear 3215 to rotate, so that the two first bevel gears 3214 are engaged and rotated to drive the two transmission screws 3213 to rotate simultaneously, and the two transmission plates 322 are gathered together inwards or diffused outwards more easily.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An ophthalmic surgical clamping device with precise positioning, characterized by comprising at least:

the supporting pillow (100) is characterized in that two symmetrical adjusting grooves (120) are formed in the edge of the top of the supporting pillow (100), an adjusting screw rod (121) is rotatably arranged in each adjusting groove (120), a driven bevel gear (122) is arranged on the outer wall, close to the end portion, of each adjusting screw rod (121), a driving bevel gear (123) is connected to the outer wall of each driven bevel gear (122) in a meshed mode, a connecting rod (124) is fixedly connected to the end portion of each driving bevel gear (123), a turntable (125) is fixedly connected to the end portion of each connecting rod (124) and extends out of the corresponding adjusting groove (120) in a rotating mode, and each turntable (125) is in a disc shape;

the clamping mechanism (200) is provided with two symmetrical clamping mechanisms (200), the clamping mechanism (200) comprises a supporting frame (210), adjusting blocks (211) are arranged at the bottom of the supporting frame (210), the size of the cross section of each adjusting block (211) is matched with the size of the inside of each adjusting groove (120), the two adjusting blocks (211) are respectively arranged inside the two adjusting grooves (120) in a sliding mode, adjusting screw holes (2110) are formed in the surfaces of the adjusting blocks (211), the insides of the adjusting screw holes (2110) are in threaded fit connection with the outer wall of each adjusting screw rod (121), the outer wall of the supporting frame (210) is provided with two symmetrical clamping blocks (220), and each clamping block (220) is an air bag made of elastic rubber;

the eye positioning device comprises two symmetrical eye positioning mechanisms (300), the eye positioning mechanisms (300) are arranged on the inner surface of the support frame (210) in a sliding mode, the eye positioning mechanisms (300) comprise telescopic rods (310), movable plates (330) are arranged at the end portions of the telescopic rods (310), the movable plates (330) are arranged inside the support frame (210) in a sliding mode, eyelid stretching devices (320) are arranged at the end portions of the telescopic rods (310), the eyelid stretching devices (320) comprise two symmetrical limiting frames (321), the limiting frames (321) are U-shaped, sliding grooves (3210) are formed in the end portions of the limiting frames (321), sliding plates (323) are arranged between the two symmetrical sliding grooves (3210) in a sliding mode, and limiting plates (3230) are arranged at the end portions of the sliding plates (323).

2. An ophthalmic surgical clamping device with precision positioning as claimed in claim 1, characterized in that: support pillow (100) and seted up arc wall (110) near the top of center department, arc wall (110) are located two between adjustment tank (120), arc wall (110) inside equidistant a plurality of massage are protruding (111), massage arch (111) are "hemisphere" form.

3. An ophthalmic surgical clamping device with precision positioning as claimed in claim 1, characterized in that: two symmetrical rotating grooves (2111) are formed in the outer wall of the adjusting block (211), a plurality of rollers (2112) are arranged in the rotating grooves (2111) in an equidistant rotating mode, the rollers (2112) are cylindrical, and the outer wall of each roller (2112) is tightly attached to the inner wall of the adjusting groove (120).

4. An ophthalmic surgical clamping device with precision positioning as claimed in claim 1, characterized in that: a plurality of air holes (221) are formed in the surface of the clamping block (220) at equal intervals, an air charging pipe (222) is communicated with the outer wall of the clamping block (220), and a sealing cover (223) is sleeved at the end of the air charging pipe (222).

5. An ophthalmic surgical clamping device with precision positioning as claimed in claim 1, characterized in that: the telescopic rod (310) comprises a fixing rod (311), a movable rod (313) is arranged inside the fixing rod (311) in a sliding mode, a plurality of connecting screw holes (314) are formed in the outer wall of the movable rod (313) at equal intervals, an extruding bolt (312) is connected to the outer wall of the fixing rod (311) close to the end portion in a threaded mode, and the extruding bolt (312) is connected with the inner threads of the connecting screw holes (314) in a matched mode.

6. An ophthalmic surgical clamping device with precision positioning as claimed in claim 1, characterized in that: the movable screw rod (212) is arranged in the support frame (210) in a rotating mode, the end portion of the movable screw rod (212) extends out of the support frame (210) in a rotating mode and is connected with an output shaft of a movable motor (2120), a movable screw hole (331) is formed in the surface of the movable plate (330), and the interior of the movable screw hole (331) is connected with the outer wall of the movable screw rod (212) in a threaded fit mode.

7. An ophthalmic surgical clamping device with precision positioning as claimed in claim 1, characterized in that: conveying groove (3211) have been seted up to spacing frame (321) top edge, conveying groove (3211) inside slides and is provided with two symmetrical conveying boards (322), conveying board (322) are "L" form, conveying wire hole (3220) have been seted up to the surface that conveying board (322) are close to the tip.

8. An ophthalmic surgical clamping device with precision positioning as claimed in claim 7, characterized in that: two symmetrical conveying screw rods (3213) are rotatably arranged in the conveying groove (3211), the conveying screw holes (3220) are in threaded fit connection with the outer wall of the conveying screw rods (3213), and an opening plate (3221) is arranged at the bottom of the conveying plate (322) close to the end.

9. An ophthalmic surgical clamping device with precision positioning as claimed in claim 8, characterized in that: the end part of the opening plate (3221) is provided with a silica gel hook (3222), the silica gel hook (3222) is L-shaped, and the silica gel hook (3222) is made of elastic silica gel.

10. An ophthalmic surgical clamping device with precision positioning as claimed in claim 9, characterized in that: a power cavity (3212) is arranged at the center inside the transmission groove (3211), a first bevel gear (3214) is connected to the end portions of the two transmission screw rods (3213) which extend into the power cavity (3212) in a rotating manner, a second bevel gear (3215) is connected between the two first bevel gears (3214) in a meshing manner, an output shaft of a transmission motor (3216) is connected to the end portion of the second bevel gear (3215), and the outer wall of the transmission motor (3216) is fixedly arranged at the top of the power cavity (3212).