CN114176976A

CN114176976A - An adjustable head immobilization device for ophthalmic surgery

Info

Publication number: CN114176976A
Application number: CN202210083616.4A
Authority: CN
Inventors: 董一; 万光明; 钱诚; 闫磐石; 梁申芝
Original assignee: First Affiliated Hospital of Zhengzhou University
Current assignee: First Affiliated Hospital of Zhengzhou University
Priority date: 2022-01-25
Filing date: 2022-01-25
Publication date: 2022-03-15
Anticipated expiration: 2042-01-25
Also published as: CN114176976B

Abstract

An adjustable head fixing device for ophthalmologic operation comprises a fixed bed, wherein supporting legs are arranged on the bottom surface of the fixed bed, a back plate movable assembly is arranged on the upper portion of the fixed bed, a head plate movable assembly is arranged on the back plate movable assembly, and a head fixing assembly is arranged on the head plate movable assembly; the bottom surface of the fixed bed is provided with an electric box, the side wall of the electric box is hinged with an electric box opening and closing door, a controller is arranged in the electric box, and the controller is connected with the backboard movable assembly and the head fixing assembly through circuits; the invention has the advantages that: the inclination angles of the back plate and the head plate can be adjusted through the back plate movable assembly and the head plate movable assembly, so that a doctor can conveniently adjust the posture of a patient to conveniently perform surgical operation; the angle of the position of arc fixture block is adjusted respectively through three gasbag about the head fixed subassembly in the upper and lower, can adapt to various head types, better simultaneously fixes patient's head, avoids patient's head to rock, remove, influences doctor's operation precision.

Description

Adjustable head fixing equipment for ophthalmologic operation

Technical Field

The invention relates to a fixing device, in particular to an adjustable head fixing device for an ophthalmic operation.

Background

The general term of ophthalmology is "ophthalmology specialty", which is the discipline for studying diseases occurring in the visual system, including the eyeball and its associated tissues. In ophthalmology, various ophthalmic diseases such as vitreous body, retinal diseases, ocular optics, glaucoma, optic neuropathy, cataract and the like are generally researched. When the eye diseases are treated, operations are frequently needed, and the head of a patient needs to be fixed in the operation process, so that the head of the patient is prevented from shaking to influence the operation of a doctor.

Head fixing equipment now adopts be hemisphere groove structure, and patient's head lies into in the recess and carries on spacingly, but patient's head still can rock in the recess. Meanwhile, different patients have different head sizes, and the same fixing equipment is obviously not suitable for different head types.

In view of the above problems, there is a need for an adjustable head fixation device for ophthalmic surgery to meet the need for head fixation in ophthalmic surgery.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and provides the adjustable head fixing equipment for the ophthalmologic operation, which has a better fixing effect and can adapt to the sizes of the heads of various patients.

The purpose of the invention is realized as follows:

an adjustable head fixing device for ophthalmologic operation comprises a fixed bed, wherein supporting legs are arranged on the bottom surface of the fixed bed, a back plate movable assembly is arranged on the upper portion of the fixed bed, a head plate movable assembly is arranged on the back plate movable assembly, and a head fixing assembly is arranged on the head plate movable assembly; the fixed bed bottom surface is provided with the electric box, the electric box lateral wall articulates there is the electric box switch door, the inside controller that is provided with of electric box, the controller with backplate movable assembly the head is all through circuit connection between the fixed subassembly.

Furthermore, the back plate movable assembly comprises a back plate, a sliding block, hinge lug plates, a hinge plate and an electric push rod, a back plate mounting groove is formed in the front half part of the top surface of the fixed bed, the back plate is hinged to the top end of the rear side of the back plate mounting groove, a sliding groove is formed in the center of the bottom surface of the back plate along the width direction of the back plate, the sliding block is connected in the sliding groove in a sliding mode, an extension groove is formed in the bottom surface of the sliding groove, a pair of hinge lug plates is arranged in the center of the bottom surface of the sliding block, the bottom ends of the hinge lug plates extend to the lower side of the back plate through the extension groove, the electric push rod is mounted on the bottom surface of the inner cavity of the back plate mounting groove, the output end of the electric push rod is provided with the hinge plate, and the hinge plate is hinged to the hinge lug plates; the fixed bed front side is opened and is equipped with the button groove, install back jack-up button and back button that falls in the button groove, the controller with back jack-up button back button fall back button pass through circuit connection between the electric putter.

Furthermore, the head plate movable assembly comprises a head plate, fixing bolts and a steel wire connecting rope, a head plate mounting groove is formed in the center of the front side, a head plate is hinged to the top end of the rear side of the head plate mounting groove, a base plate is arranged at the front end of an inner cavity of the head plate mounting groove, fixing bolts are arranged at the left end and the right end of the front side of the top surface of the head plate respectively and are symmetrical about a vertical plane of the head plate, a plurality of fixing holes are formed in the left end and the right end of the rear side of the back plate at equal intervals, the lower ends of the fixing holes face towards the head plate, the fixing bolts are inserted into the fixing holes, and the steel wire connecting rope is arranged between the fixing bolts at the same sides.

Further, the head fixing component comprises a fixing plate, a connecting bulge, a fixing box, an adjusting air bag, an introducing pipe, an electromagnetic switch valve, a detecting air bag, an exhaust pipe, an exhaust valve, an arc-shaped fixture block, a middle fixture block and an air pump, wherein the fixing plate is arranged on the upper side and the lower side of the top surface of the head plate respectively, the three connecting bulges are sequentially arranged on the inner side of the fixing plate from top to bottom, the fixing box is arranged on the other side of the connecting bulge, the fixing box is of a hollow box structure with one open side, the opening of the fixing box faces to the side far away from the connecting bulge, the adjusting air bag is arranged in the fixing box, one side of the adjusting air bag is fixedly connected with the side wall of the inner cavity of the fixing box, the arc-shaped fixture block is arranged on one side far away from the connecting bulge of the three adjusting air bags, and the upper, middle and lower positions on the outer side of the arc-shaped fixture block are respectively connected with the three adjusting air bags, an induction pipe and an exhaust pipe are arranged on one side of the adjusting air bag, the induction pipe and the exhaust pipe are communicated with an inner cavity of the detecting air bag, the induction pipe and the exhaust pipe extend to the outer side of the fixing box, an electromagnetic switch valve is arranged on the induction pipe, the exhaust pipe is provided with the detecting air bag, the inner cavity of the detecting air bag is communicated with the exhaust pipe, an exhaust valve is arranged at the outer end of the exhaust pipe, a middle fixture block is arranged in the middle of the head, the middle fixture block is positioned between the two arc fixture blocks, the two arc fixture blocks and the inner side of the middle fixture block jointly form a semicircular structure for fixing the head of a patient, and rubber pads are arranged on the inner side of each arc fixture block and the top surface of the middle fixture block; the button inslot is installed and is aerifyd button, left side in, aerify button, left side down aerify button, upper right aerify button, right side in and aerify button, the air pump is installed to the electric box outside, the output of air pump with all communicate through the pipeline between the induction pipe, the controller with the air pump the upper left aerify button in the left side aerify button the left side down aerify button the upper right aerify button in the right side aerify the button all through circuit connection between the button down on the right side.

Further, a surgical auxiliary assembly is arranged on one side of the top surface of the fixed bed.

Furthermore, the operation auxiliary assembly comprises a screw rod, a limiting nut, a hand wheel, a support plate, telescopic rods, a connecting plate and a support plate, wherein the screw rod is connected to one side of the fixed bed in a threaded manner, the limiting nut is connected to the screw rod in a threaded manner, the bottom surface of the limiting nut is in surface contact with the fixed bed, the hand wheel is arranged at the bottom end of the screw rod, the support plate is connected to the top surface of the screw rod in a threaded manner, a plurality of telescopic rods are arranged between the support plate and the fixed bed, the connecting plate is arranged on one side, close to the fixed bed, of the support plate, and the support plate is inserted into the other end of the connecting plate.

Furthermore, each edge of the supporting plate is provided with a jack, a jack board is inserted in the jack, and the supporting plate is inserted at the other end of the jack board.

Further, the support plate is hexagonal.

Furthermore, the top surface of the support plate is provided with a sight suction assembly.

Further, the eyesight attracts the subassembly to include gooseneck, mounting panel, display screen, the extension board top surface is provided with the gooseneck, the other end of gooseneck is provided with the mounting panel, the mounting panel bottom surface is provided with the display screen.

The advantages of the invention are as follows:

1. through backplate movable assembly and head board movable assembly, can adjust the inclination of backplate, head board, the doctor of being convenient for adjusts patient's gesture, comes the convenient operation that performs the operation.

2. The angle of the position of arc fixture block is adjusted respectively through three gasbag about the head fixed subassembly in the upper and lower, can adapt to various head types, better simultaneously fixes patient's head, avoids patient's head to rock, remove, influences doctor's operation precision.

3. Through the operation auxiliary assembly, a plate for auxiliary support can be provided for a doctor, the support is convenient to carry out in the operation process, the hand shaking of the doctor is reduced, and the operation is convenient to improve.

Drawings

Fig. 1 is a schematic structural view of an adjustable head fixation device for ophthalmic surgery.

Fig. 2 is a schematic sectional structure view of an adjustable head fixing device for ophthalmologic operation.

Fig. 3 is a schematic diagram of the electrical box being opened.

Fig. 4 is a schematic sectional structure view of the support plate.

Fig. 5 is a schematic structural view of the head fixation assembly.

In the figure: 1. the multifunctional electric bicycle comprises a fixed bed, 2 supporting legs, 3 a back plate movable assembly, 4 a head plate movable assembly, 5 a head fixed assembly, 6 an electric box, 7 an electric box switch door, 8 a controller, 9 a back plate, 10 a sliding block, 11 an articulated lug plate, 12 a hinged plate, 13 an electric push rod, 14 a back plate mounting groove, 15 sliding grooves, 16 an extension groove, 17 a button groove, 18 a back jacking button, 19 a back falling button, 20 a head plate, 21 a fixed bolt, 22 a steel wire connecting rope, 23 a head plate mounting groove, 24 a backing plate, 25 a fixed hole, 26 a fixed plate, 27 a connecting protrusion, 28 a fixed box, 29 an adjusting air bag, 30 an inlet pipe, 31 an electromagnetic switch valve, 32 a detection air bag, 33 an exhaust pipe, 34 an exhaust valve, 35 an arc-shaped clamping block, 36 a middle clamping block, 37 an air pump, 38 a rubber pad, 39 an upper left air inflation button, 39 an electromagnetic switch button, 30 an electromagnetic switch valve, 32 a detection air bag, 32 an air pump, 23 an air outlet valve, 35 an arc-shaped clamping block, 36 an arc-shaped clamping block, 37 an air pump, 38, a gas pump, 40. the surgical instrument comprises a left middle inflating button, 41, a left lower inflating button, 42, a right upper inflating button, 43, a right middle inflating button, 44, a right lower inflating button, 45, an operation auxiliary assembly, 46, a screw rod, 47, a limiting nut, 48, a hand wheel, 49, a support plate, 50, an expansion rod, 51, a connecting plate, 52, a support plate, 53, a plug hole, 54, a plug plate, 55, a gaze suction assembly, 56, a gooseneck, 57, a mounting plate and 58, and a display screen.

Detailed Description

In order to make the technical solutions in the embodiments of the present application better understood, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, 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 application.

The embodiment of the application provides an adjustable head fixing equipment for an ophthalmic surgery.

As shown in fig. 1-5.

An adjustable head fixing device for ophthalmologic operation comprises a fixed bed 1, wherein supporting legs 2 are arranged on the bottom surface of the fixed bed 1. The upper part of the fixed bed 1 is provided with a backboard moving component 3 for changing the posture of the back of the patient. The backboard moving assembly 3 is provided with a head board moving assembly 4 to change the head posture of the patient. The head plate movable assembly 4 is provided with a head fixing assembly 5 for fixing the head of the patient. The bottom surface of the fixed bed 1 is provided with an electric box 6, and the side wall of the electric box 6 is hinged with an electric box switch door 7. The electric box 6 is internally provided with a controller 8, and the controller 8 preferably selects a standard PLC of a military and creative automation technology and technology company Limited with the model of JS-68T-D. The controller 8 is connected with the backboard moving component 3 and the head fixing component 4 through circuits.

The back plate moving assembly 3 comprises a back plate 9, a sliding block 10, a hinge lug plate 11, a hinge plate 12 and an electric push rod 13. The fixed bed is characterized in that a back plate mounting groove 14 is formed in the front half part of the top surface of the fixed bed 1, a back plate 9 is hinged to the top end of the rear side of the back plate mounting groove 14, a sliding groove 15 is formed in the center of the bottom surface of the back plate 9 in the width direction, a sliding block 10 is connected in the sliding groove 15 in a sliding mode, an extending groove 16 is formed in the bottom surface of the sliding groove 15, a pair of hinged plates 12 is arranged in the center of the bottom surface of the sliding block 10, the bottom ends of the hinged plates 12 extend to the lower portion of the back plate 9 through the extending groove 16, an electric push rod 13 is mounted on the bottom surface of an inner cavity of the back plate mounting groove 14, and the electric push rod 13 preferably adopts a multistage electric push rod of Beijing Tianyu Innovation technology Limited company. The output end of the electric push rod 13 is provided with a hinge lug plate 11, the hinge plate 12 is hinged to the hinge lug plate 11, the electric push rod 13 jacks up to drive the backboard 9 to rotate upwards along the hinged position of the backboard 9 and the backboard mounting groove 14, and then the angle of the backboard 9 is changed to change the back posture of the patient. The fixed bed is characterized in that a button groove 17 is formed in the front side of the fixed bed 1, a back jacking button 18 and a back falling button 19 are installed in the button groove 17, and the controller 8 is connected with the back jacking button 18, the back falling button 19 and the electric push rod 13 through circuits.

The head plate moving assembly 4 comprises a head plate 20, a fixing bolt 21 and a steel wire connecting rope 22, a head plate mounting groove 23 is formed in the center of the front side of the back plate 9, a head plate 20 is hinged to the top end of the rear side of the head plate mounting groove 23, a backing plate 24 is arranged at the front end of an inner cavity of the head plate mounting groove 23, and when the head plate 20 is arranged on the backing plate 24, the surface of the head plate 20 is flush with the back plate 9. The left end and the right end of the front side of the top surface of the head plate 20 are respectively provided with a fixing bolt 21, the two fixing bolts 21 are symmetrical about the middle vertical plane of the head plate 20, the left end and the right end of the rear side of the back plate 9 are equally provided with a plurality of fixing holes 25 at intervals, the lower ends of the fixing holes 25 are obliquely arranged towards the head plate 20, the fixing bolts 21 are inserted into the fixing holes 25, and a steel wire connecting rope 22 is arranged between the two fixing bolts 21 on the same side. The fixing pegs 21 are inserted into different fixing holes 25, and the head plate 20 can be pulled up through the steel wire connecting ropes 22, so that the angle of the head plate 20 is changed, and the head posture of the patient can be changed.

The head fixing component 5 comprises a fixing plate 26, a connecting bulge 27, a fixing box 28, an adjusting air bag 29, a lead-in pipe 30, an electromagnetic switch valve 31, a detection air bag 32, an exhaust pipe 33, an exhaust valve 34, an arc-shaped clamping block 35, a middle clamping block 36 and an air pump 37, wherein the fixing plate 26 is respectively arranged on the upper side and the lower side of the top surface of the head plate 20, three connecting bulges 27 are sequentially arranged on the inner side of the fixing plate 26 from top to bottom, the fixing box 28 is arranged on the other side of the connecting bulge 27, the fixing box 28 is of a hollow box structure with an opening at one side, the opening of the fixing box 28 faces to one side far away from the connecting bulge 27, the adjusting air bag 29 is placed in the fixing box 28, one side of the adjusting air bag 29 is fixedly connected with the inner cavity side wall of the fixing box 28, and the arc-shaped clamping block 35 is arranged on one side far away from the connecting bulge 27, the upper, middle and lower three positions of the outer side of the arc-shaped fixture block 35 are respectively connected with three adjusting air bags 29, one side of each adjusting air bag 29 is provided with a leading-in pipe 30 and an exhaust pipe 33, the leading-in pipe 30 and the exhaust pipe 33 are communicated with the inner cavity of each detecting air bag 32, the leading-in pipe 30 and the exhaust pipe 33 extend to the outer side of the fixed box 28, the leading-in pipe 30 is provided with an electromagnetic switch valve 31, the exhaust pipe 33 is provided with the detecting air bags 32, the inner cavities of the detecting air bags 32 are communicated with the exhaust pipe 33, and the outer ends of the exhaust pipes 33 are provided with exhaust valves 34. The medical staff can intuitively feel the communicated inflation condition in the adjusting air bag 29 by pinching the detecting air bag 32, and the inflation can be stopped until the adjusting air bag 29 adjusts the position of the arc-shaped clamping block 35 to the right position. When the inflation is excessive, the deflation is performed through the deflation valve 34. The middle fixture block 26 is arranged in the middle of the head plate 20, the middle fixture block 36 is located between the two arc fixture blocks 35, and the two arc fixture blocks 35 and the inner side of the middle fixture block 36 jointly form a semicircular structure for fixing the head of a patient. Rubber pads 38 are arranged on the inner side of the arc-shaped clamping block 35 and the top surface of the middle clamping block 36, so that the comfort degree of a patient is improved. Install in the button groove 17 and aerify button 39, aerify button 40 in the left side, aerify button 41, aerify button 42 on the right side, aerify button 43 in the right side, aerify button 44 under the right side down, air pump 37 is installed in the electric box 6 outside, air pump 37 is preferred along the air pump of following intelligent science and technology limited company, and the model is 798. The output end of the air pump 37 is communicated with the inlet pipe 30 through a pipeline, and the controller 8 is connected with the air pump 37, the upper left inflation button 39, the middle left inflation button 40, the lower left inflation button 41, the upper right inflation button 42, the middle right inflation button 43 and the lower right inflation button 44 through a circuit. The posture of the arc-shaped fixture block 35 is changed by the inflation degree of the upper, middle and lower three adjustment air bags 29 on the left and right sides, so that the head of the patient can be better fixed by the two arc-shaped fixture blocks 35.

An operation auxiliary assembly 45 is arranged on one side of the top surface of the fixed bed 1. Can provide a board for assisting the support for doctors, is convenient for supporting in the operation process, reduces the shaking of the hands of the doctors and is convenient for improving the operation precision of the operation.

The operation auxiliary assembly 45 comprises a screw rod 46, a limiting nut 47, a hand wheel 48, a support plate 49, an expansion rod 50, a connecting plate 51 and a support plate 52. A screw rod 46 is screwed on one side of the fixed bed 1, a limit nut 47 is screwed on the screw rod 46, and the bottom surface of the limit nut 47 is in contact with the surface of the fixed bed 1 to limit the position of the screw rod 46. A hand wheel 48 is arranged at the bottom end of the screw rod 46, a support plate 49 is screwed on the top surface of the screw rod 46, a plurality of telescopic rods 50 are arranged between the support plate 49 and the fixed bed 1, a connecting plate 51 is arranged on one side of the support plate 49 close to the fixed bed 1, and a support plate 52 is inserted into the other end of the connecting plate 51. Each side of the support plate 52 is provided with a plugging hole 53, a plugging plate 54 is inserted in the plugging hole 53, and the support plate 52 is plugged at the other end of the plugging plate 54. Medical personnel can be according to the operation condition and individual operation habit a plurality of backup pad 52 provides the support for hand or elbow of oneself, and the hand that is convenient for reduce in the operation shakes, and then better carries out meticulous operation. The supporting plate 52 is hexagonal, so that on one hand, a larger supporting area can be provided, a doctor can support the supporting plate conveniently, on the other hand, the inserting connection is convenient, the inserting connection can be performed from six angles at most, and therefore, the supporting plate 52 is convenient for medical staff to flexibly adjust the setting position of the supporting plate 52.

The top surface of the plate 49 is provided with a gaze attracting assembly 55 for attracting the gaze of the patient.

The eye attraction assembly 55 comprises a gooseneck 56, a mounting plate 57 and a display screen 58, the gooseneck 56 is arranged on the top surface of the support plate 49, the mounting plate 57 is arranged at the other end of the gooseneck 56, and the display screen 58 is arranged on the bottom surface of the mounting plate 57. The gooseneck 56 can be used for freely twisting the position of the mounting plate 57, so that the position of the display screen 58 can be adjusted, and the eyeball can be positioned at an angle in the operation process by enabling the patient to look at the display screen 58.

When the invention is used:

the angle of the back plate and the head plate is first adjusted.

When the back jacking button and the back falling button are pressed down, the controller receives signals and controls the output end of the electric push rod to jack up or fall back, and further the angle of the back plate is adjusted.

And the fixing bolt is inserted into a proper fixing hole, and the head plate is pulled up through the steel wire connecting rope, so that the angle of the head plate is changed.

After the adjustment is finished, the patient is on the fixed bed, and the head of the patient is arranged in a semicircular space defined by the two arc-shaped clamping blocks and the middle clamping block.

Then the upper left inflation button, the middle left inflation button, the lower left inflation button, the upper right inflation button, the middle right inflation button and the lower right inflation button are pressed, the controller receives signals, the air pump is controlled to start, and the corresponding adjusting air bag is inflated. Medical personnel pinch the detection gasbag, feel that it is linked together the atmospheric pressure in the adjustment gasbag waits for two arc fixture block position, angle modulation back in place, press corresponding button, close can.

Medical personnel adjust the backup pad in the operation auxiliary assembly, peg graft according to actual conditions, make it provide suitable support position to the primary knife doctor.

The medical staff adjusts the position of the display screen in the eye attraction assembly, so that when the patient stares at the eye, the eyeballs are at the angle required by the operation.

It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims. It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims

1. An adjustable head fixing device for ophthalmic surgery, comprising a fixed bed, the bottom surface of the fixed bed is provided with a support leg, and it is characterized in that: the top of the fixed bed is provided with a backboard movable assembly, and the backboard movable assembly A head plate movable assembly is arranged thereon, and a head fixed assembly is arranged on the head plate movable assembly;

The bottom surface of the fixed bed is provided with an electrical box, the side wall of the electrical box is hinged with an electrical box switch door, the inside of the electrical box is provided with a controller, and the controller is fixed with the back panel movable assembly and the head. The components are connected by electrical circuits.

2 . The adjustable head immobilization device for ophthalmic surgery according to claim 1 , wherein the movable back plate assembly comprises a back plate, a slider, a hinged ear plate, a hinged plate, and an electric push rod, 2 . The front half of the top of the fixed bed is provided with a back plate installation slot, the top of the rear side of the back plate installation slot is hinged with a back plate, and the center of the bottom surface of the back plate is provided with a chute along its width direction. A sliding block is slidably connected inside, an extension groove is formed on the bottom surface of the sliding groove, and a pair of hinge plates is arranged at the center of the bottom surface of the sliding block. An electric push rod is installed on the bottom surface of the inner cavity of the back plate installation groove, an output end of the electric push rod is provided with a hinged lug plate, and the hinged plate is hinged with the hinged lug plate;

The front side of the fixed bed is provided with a button slot, and the back push button and the back drop button are installed in the button slot. The controller is connected with the back push button, the back drop button, and the electric push rod. connected by a circuit.

3 . The adjustable head fixing device for ophthalmic surgery according to claim 2 , wherein the movable assembly of the head plate comprises a head plate, a fixing bolt and a wire connecting rope, and the center of the front side of the back plate is located at the center of the front side of the back plate. 4 . A head plate installation slot is opened, the top end of the rear side of the head plate installation slot is hinged with a head plate, the front end of the inner cavity of the head plate installation slot is provided with a backing plate, and the left and right ends of the front side of the top of the head plate are respectively arranged There are fixing bolts. The two fixing bolts are symmetrical about the vertical plane of the head plate. The left and right ends of the back plate are equally spaced with a number of fixing holes. The lower ends of the fixing holes face the head. The direction of the plate is inclined and opened, a fixing bolt is inserted into the fixing hole, and a steel wire connecting rope is arranged between the fixing bolts on the same side.

4 . The adjustable head fixing device for ophthalmic surgery according to claim 3 , wherein the head fixing assembly comprises a fixing plate, a connecting protrusion, a fixing box, an adjustment airbag, an introduction tube, and an electromagnetic switch. 5 . Valve, detection air bag, exhaust pipe, exhaust valve, arc block, middle block, air pump, the top of the head plate is provided with fixed plates on the upper and lower sides respectively, and the inner side of the fixed plate is in order from top to bottom Three connecting protrusions are provided, the other side of the connecting protrusions is provided with a fixing box, the fixing box is a hollow box structure with an opening on one side, and the opening of the fixing box faces a side away from the connecting protrusions. An adjustment airbag is placed in the fixed box, one side of the adjustment airbag is fixedly connected with the side wall of the inner cavity of the fixed box, and the side of the three adjustment airbags away from the connection protrusion is provided with an arc clip The upper, middle and lower positions on the outer side of the arc-shaped block are respectively connected with the three adjustment airbags, and an introduction pipe and an exhaust pipe are arranged on one side of the adjustment airbag, and the introduction pipe is connected with the exhaust air. The pipes are all communicated with the inner cavity of the detection airbag, the introduction pipe and the exhaust pipe extend to the outside of the fixed box, the introduction pipe is provided with an electromagnetic switch valve, and the exhaust pipe is provided with a detection airbag , the inner cavity of the detection airbag is communicated with the exhaust pipe, the outer end of the exhaust pipe is provided with an exhaust valve, the middle part of the head plate is provided with a middle block, and the middle block is located in the two arcs. Between the two arc-shaped blocks, the two arc-shaped blocks and the inner side of the middle block together form a semi-circular structure to fix the patient's head. The inner side of the arc-shaped block and the top of the middle block All surfaces are provided with rubber pads;

The upper left inflation button, the middle left inflation button, the lower left inflation button, the upper right inflation button, the middle right inflation button, and the lower right inflation button are installed in the button groove. The introduction pipes are all connected through pipes, and the controller is connected to the air pump, the upper left inflation button, the middle left inflation button, the lower left inflation button, the upper right inflation button, and the middle right inflation button. The button and the lower right inflation button are all connected through a circuit.

5 . The adjustable head fixing device for ophthalmic surgery according to claim 1 , wherein a surgical auxiliary component is provided on one side of the top surface of the fixed bed. 6 .

6 . The adjustable head fixation device for ophthalmic surgery according to claim 5 , wherein the surgical auxiliary component comprises a screw rod, a limit nut, a hand wheel, a support plate, a telescopic rod, a connecting plate, a support A screw is screwed through one side of the fixed bed, a limit nut is screwed on the screw, the bottom surface of the limit nut is in contact with the surface of the fixed bed, and the bottom end of the screw is provided with a hand wheel, so The top surface of the screw is screwed with a support plate, a number of telescopic rods are arranged between the support plate and the fixed bed, a connecting plate is provided on the side of the support plate close to the fixed bed, and the other side of the connecting plate is provided. One end is plugged with a support plate.

7 . The adjustable head fixation device for ophthalmic surgery according to claim 6 , wherein each side of the support plate is provided with insertion holes, and the insertion holes are inserted into the adjustable head fixing device. 8 . A connecting plate is inserted into the other end of the connecting plate with the supporting plate.

8 . The adjustable head fixing device for ophthalmic surgery according to claim 7 , wherein the support plate is hexagonal. 9 .

9 . The adjustable head fixation device for ophthalmic surgery according to claim 6 , wherein an eye attracting component is provided on the top surface of the support plate. 10 .

10 . The adjustable head fixation device for ophthalmic surgery according to claim 9 , wherein the eye attraction component comprises a gooseneck, a mounting plate, and a display screen, and the top surface of the support plate is provided with a gooseneck. 11 . The other end of the gooseneck is provided with a mounting plate, and the bottom surface of the mounting plate is provided with a display screen.