CN219480748U - Head fixing device in eye operation - Google Patents

Abstract

The utility model belongs to the technical field of auxiliary instruments for ophthalmic surgery, in particular to a head fixing device for ophthalmic surgery, which is characterized in that a spring and an elastic strap are used for fixing the forehead of a patient in the prior art, the spring and the elastic strap have elastic deformation characteristics, the forehead of the patient cannot be completely fixed, the head raising of the patient can drive the spring and the elastic strap to deform, the problem of poor fixation stability of the forehead of the patient cannot be solved, or the problem of influence on the surgery can be solved, the utility model provides a scheme which comprises an operating table, a cavity is formed in the operating table, and a double-shaft motor is fixedly connected to the inner wall of the bottom of the cavity.

Description

Head fixing device in eye operation

Technical Field

The utility model relates to the technical field of ophthalmic surgery auxiliary instruments, in particular to a head fixing device in an ophthalmic surgery.

Background

In prior art, the application embodiment of application number 201921794216.4 discloses an ophthalmic surgery head fixing device, including the operating table, encircle on the inner wall of operating table and have the puigging, and the middle part fixed mounting of operating table inner chamber has the biax motor, the inside fixed cover of operating table has the support frame that is located biax motor both sides. This ophthalmic surgery head fixing device, it rotates to drive two lead screws through the biax motor of controller start, utilize spacing and the support of gag lever post, thereby drive two and remove seat relative motion, and then drive two fixed plate relative motion on the operating table and fix patient's head, this device utilizes the cooperation of the pressure sensor of setting up on the inboard cushion of fixed plate and cushion, when fixed plate and patient's head contact, pressure sensor senses pressure, give the controller with data information feedback, the biax motor is closed immediately to the controller, thereby realize the automatic fixation of fixed plate to patient's head, this device degree of automation is high, and convenient to use is simple.

However, the above technical scheme is that the forehead of the patient is fixed by using the spring and the elastic binding belt, and the spring and the elastic binding belt have elastic deformation characteristics at first, so that the forehead of the patient cannot be completely fixed, the patient can drive the spring and the elastic binding belt to deform when the patient lifts the head, and therefore, the problem that the stability of the forehead of the patient is poor, the fundamental problem cannot be solved, and the problem of influence on the operation can be solved.

Disclosure of Invention

The utility model aims to solve the problems that in the prior art, the forehead of a patient is fixed by using a spring and an elastic strap, firstly, the spring and the elastic strap have elastic deformation characteristics, the forehead of the patient cannot be completely fixed, and the head of the patient can drive the spring and the elastic strap to deform, so that the forehead of the patient is poor in fixation stability, the fundamental problem cannot be solved, and the operation is influenced.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a head fixing device in eye operation, includes the operating table, the cavity has been seted up to the inside of operating table, fixedly connected with biax motor on the bottom inner wall of cavity, all fixedly connected with lead screw on two output shafts of biax motor, the one end that two lead screws kept away from each other is rotated respectively and is connected on the left side inner wall and the right side inner wall of cavity, all threaded connection has the nut on two lead screws, the top of two nuts is all fixedly connected with connecting rod, two slide holes have been seted up on the top inner wall of cavity, the top of connecting rod runs through corresponding slide hole and with slide hole's inner wall sliding connection, the top of two connecting rods is all fixedly connected with fixed plate, the top fixedly connected with headrest of operating table;

the top fixedly connected with support of operating table, sliding connection has the depression bar on the support, and the bottom fixedly connected with clamp plate of depression bar, a plurality of draw-in grooves have been seted up to equidistant on the right side of depression bar, the top fixedly connected with box of support, and the inside of box is provided with positioning mechanism, and positioning mechanism cooperatees with the draw-in groove.

By means of the structure, through the transmission cooperation between the double-shaft motor and the two fixing plates, the side clamping fixation of the head of the patient can be achieved, the head of the patient can not shake and rotate, stable fixation of the head of the patient can be achieved, then the forehead of the patient is pressed and fixed by the cooperation of the pressing plate, complete fixation of the head of the patient can be achieved, and the fixation stability is high in such a mode, so that the eye surgery of the patient is not affected.

Preferably, the top of the bracket is fixedly connected with a reset spring, and the top end of the reset spring is fixedly connected to the compression bar.

Furthermore, the reset spring can drive the compression bar and the pressing plate to move upwards for reset.

Preferably, the positioning mechanism comprises a moving rod, an auxiliary spring, a pushing rod, a triangular block, a telescopic rod, a sliding rod, an unlocking rod and a clamping rod;

the bottom sliding connection of movable rod is on the bottom inner wall of box, auxiliary spring's right-hand member fixed connection is on the right side inner wall of box, auxiliary spring's left end fixed connection is on the right side of movable rod, the right-hand member of clamping rod runs through the left side of box and fixed connection in the left side of movable rod, the left end swing joint of clamping rod is in corresponding draw-in groove, the bottom swivelling joint of push rod is on the left side of movable rod, the top swivelling joint of push rod is in the bottom of triangle piece, the top fixed connection of telescopic link is on the top inner wall of box, the bottom fixed connection of telescopic link is on the left side of triangle piece, the top sliding connection of slide bar is on the top inner wall of box, the bottom of slide bar cooperatees with the triangle piece, the left end of release lever runs through the right side of box and fixed connection is on the right side of slide bar.

Further, through the spacing cooperation of clamping between clamping pole and the draw-in groove, can realize fixed to the location of depression bar and clamp plate to it is more stable when the clamp plate compresses tightly fixedly to patient's forehead, can not take place the displacement, in addition through the transmission cooperation between release lever and the clamping pole, can drive between clamping pole and the draw-in groove and relieve the clamping spacing, thereby realize the reciprocates of depression bar and clamp plate, so that the clamp plate adapts to different patient's head and forehead height of different sizes and compresses tightly fixedly to patient's forehead.

Preferably, a first chute is formed in the inner wall of the bottom of the box body, the bottom end of the moving rod is slidably connected in the first chute, a second chute is formed in the inner wall of the top of the box body, and the top end of the sliding rod is slidably connected in the second chute.

Further, through setting up first spout and second spout, can realize the slip spacing and the slip support to movable rod and slide bar stability.

Preferably, the bottom of the sliding rod is rotationally connected with a squeezing wheel, and the squeezing wheel is in rolling contact with the top of the triangular block.

Furthermore, the squeezing wheel is arranged, so that the sliding rod and the triangular block can be conveniently connected and driven.

Preferably, the unlocking rod is sleeved with a compression spring, the left end of the compression spring is fixedly connected to the right side of the box body, and the right end of the compression spring is fixedly connected to the unlocking rod.

Furthermore, the unlocking rod can be driven to move to the right side for resetting by the compression spring.

The beneficial effects are that:

1. through the transmission cooperation between biax motor and two fixed plates, can realize carrying out the side to patient's head and press from both sides tight fixedly, can make patient's head can't rock and rotate to can realize the stable fixed to patient's head, then cooperate the clamp plate to compress tightly the forehead of patient and fix, can realize the complete fixation to patient's head, through this kind of mode fixed stability is high, can not cause the influence to patient's eye operation;

2. the clamping limit fit between the clamping rod and the clamping groove can achieve positioning fixation of the pressing rod and the pressing plate, so that the pressing plate is more stable when pressing fixation is carried out on the forehead of a patient, displacement cannot occur, in addition, the clamping limit can be relieved between the clamping rod and the clamping groove through transmission fit between the unlocking rod and the clamping groove, and accordingly the pressing rod and the pressing plate can move up and down, so that the pressing plate can adapt to different sizes of the forehead of the patient and the forehead height can be pressed fixation of the forehead of the patient.

The utility model realizes the complete fixation of the head of the patient through a simple structure, so that the head of the patient can not rotate, shake and raise the head when the patient performs the eye operation, the stability of the head of the patient can be ensured, the eye operation of the patient can not be influenced, and the practicability is strong.

Drawings

FIG. 1 is a front view of a head fixation device in an eye surgery according to the present utility model;

FIG. 2 is a front cross-sectional view of a head restraint case in an eye surgery according to the present utility model;

FIG. 3 is a three-dimensional view showing the structure of a compression bar, a compression plate and a clamping groove of a head fixing device in an eye surgery according to the present utility model;

fig. 4 is a three-dimensional view of a telescopic rod of a head fixing device in eye surgery according to the present utility model.

In the figure: 1. an operating table; 2. a biaxial motor; 3. a screw rod; 4. a nut; 5. a connecting rod; 6. a fixing plate; 7. a headrest; 8. a bracket; 9. a compression bar; 10. a pressing plate; 11. a clamping groove; 12. a return spring; 13. a case; 14. a moving rod; 15. a first chute; 16. an auxiliary spring; 17. a push rod; 18. triangular blocks; 19. a telescopic rod; 20. a slide bar; 21. a pressing wheel; 22. a second chute; 23. unlocking the rod; 24. a compression spring; 25. and (5) clamping the rod.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-4, a head fixing device in eye surgery comprises an operating table 1, wherein a cavity is formed in the operating table 1, a double-shaft motor 2 is welded on the inner wall of the bottom of the cavity, screw rods 3 are welded on two output shafts of the double-shaft motor 2, one ends of the two screw rods 3, which are far away from each other, are respectively connected on the left inner wall and the right inner wall of the cavity through shaft rotation, nuts 4 are connected on the two screw rods 3 in a threaded manner, connecting rods 5 are welded on the tops of the two nuts 4, two sliding holes are formed in the inner wall of the top of the cavity, the top ends of the connecting rods 5 penetrate through the corresponding sliding holes and are in sliding connection with the inner walls of the sliding holes, fixing plates 6 are welded on the top ends of the two connecting rods 5, and a headrest 7 is welded on the top of the operating table 1;

the top of the operating table 1 is welded with a support 8, the support 8 is connected with a pressing rod 9 in a sliding manner, the bottom end of the pressing rod 9 is welded with a pressing plate 10, the right side of the pressing rod 9 is provided with a plurality of clamping grooves 11 at equal intervals, the top of the support 8 is welded with a box 13, and a positioning mechanism is arranged in the box 13 and matched with the clamping grooves 11;

the positioning mechanism comprises a moving rod 14, an auxiliary spring 16, a pushing rod 17, a triangular block 18, a telescopic rod 19, a sliding rod 20, an unlocking rod 23 and a clamping rod 25; the bottom sliding connection of movable rod 14 is on the bottom inner wall of box 13, the right-hand member welding of auxiliary spring 16 is on the right side inner wall of box 13, the left end welding of auxiliary spring 16 is on the right side of movable rod 14, the right-hand member of clamping rod 25 runs through the left side of box 13 and welds in the left side of movable rod 14, the left end swing joint of clamping rod 25 is in corresponding draw-in groove 11, the bottom of catch bar 17 is connected in the left side of movable rod 14 through the axle rotation, the top of catch bar 17 is connected in the bottom of triangle 18 through the axle rotation, the top of telescopic link 19 is welded on the top inner wall of box 13, the bottom of telescopic link 19 is welded in the left side of triangle 18, the top sliding rod 20's top sliding connection is on the top inner wall of box 13, the bottom and triangle 18 cooperate of sliding rod 20, the left end of unlocking rod 23 runs through the right side of box 13 and welds in the right side of slide rod 20.

By means of the structure, the clamping limiting cooperation between the clamping rod 25 and the clamping groove 11 can be used for fixing the compression rod 9 and the compression plate 10, so that the compression plate 10 is more stable when being used for compressing and fixing the forehead of a patient, displacement cannot occur, in addition, the clamping limiting cooperation between the unlocking rod 23 and the clamping rod 25 can be used for driving the clamping rod 25 and the clamping groove 11 to release the clamping limiting, and accordingly the compression rod 9 and the compression plate 10 can move up and down, so that the compression plate 10 can be conveniently used for compressing and fixing the forehead of the patient according to different sizes of different patients.

In the utility model, the top of the bracket 8 is welded with the return spring 12, the top end of the return spring 12 is welded on the compression bar 9, and the compression bar 9 and the compression plate 10 can be driven to move upwards for return by arranging the return spring 12.

In the utility model, the inner wall of the bottom of the box body 13 is provided with the first chute 15, the bottom end of the moving rod 14 is slidably connected in the first chute 15, the inner wall of the top of the box body 13 is provided with the second chute 22, the top end of the sliding rod 20 is slidably connected in the second chute 22, and stable sliding limiting and sliding support of the moving rod 14 and the sliding rod 20 can be realized by arranging the first chute 15 and the second chute 22.

In the utility model, the bottom end of the slide bar 20 is rotationally connected with the extrusion wheel 21 through the shaft, the extrusion wheel 21 is in rolling contact with the top of the triangular block 18, and the connection and transmission between the slide bar 20 and the triangular block 18 can be facilitated through the arrangement of the extrusion wheel 21.

In the utility model, the unlocking lever 23 is sleeved with the compression spring 24, the left end of the compression spring 24 is welded on the right side of the box 13, the right end of the compression spring 24 is welded on the unlocking lever 23, and the unlocking lever 23 can be driven to move and reset to the right side by arranging the compression spring 24.

Working principle: when the eyes of a patient need to be operated, the patient is firstly laid on the operating table 1, then the face is upwards rested on the headrest 7, at the moment, the double-shaft motor 2 is started to drive the two screw rods 3 to rotate, when the screw rods 3 rotate, the two screw rods 4 can be driven to be mutually close through threaded connection fit between the screw rods 3 and the screw nuts 4, when the two screw nuts 4 are mutually close, the two connecting rods 5 can be driven to be mutually close, when the two connecting rods 5 are mutually close, the two fixing plates 6 can be driven to be mutually close and contact with two sides of the head of the patient, at the moment, the side clamping and fixing of the head of the patient are realized, when the side fixing of the head of the patient is finished, the unlocking rod 23 can be pushed to the left side to drive the slide rod 20 and the extrusion wheel 21 to the left side, when the extrusion wheel 21 moves to the left side, through rolling connection fit between the extrusion wheel 21 and the triangular block 18, can press the triangular block 18 to move downwards, when the triangular block 18 moves downwards, the top end of the pushing rod 17 can be driven to move downwards, at the moment, the bottom end of the pushing rod 17 can push the moving rod 14 to move rightwards, when the moving rod 14 moves rightwards, the clamping rod 25 can be driven to move rightwards and release clamping limit with the clamping groove 11, at the moment, the pressing rod 9 can be pressed downwards to drive the pressing plate 10 to move downwards and contact with the head of a patient, at the moment, the forehead of the patient can be fixed by pressing the forehead of the patient through the pressing plate 10, after the forehead of the patient is fixed, the unlocking rod 23 is released, and the clamping rod 25 can be driven to move leftwards for resetting through the cooperation between the elastic resetting characteristics of the compression spring 24 and the auxiliary spring 16, at the moment, the left end of the clamping rod 25 can be inserted into the corresponding clamping groove 11, at this time, the clamping limiting cooperation between the clamping rod 25 and the clamping groove 11 realizes the positioning fixation of the pressing rod 9 and the pressing plate 10, so that the pressing plate 10 is more stable in such a way that the position movement cannot occur, the forehead of the patient can be stably fixed, the head of the patient cannot be lifted when the eye surgery is performed, and the eye surgery of the patient cannot be influenced.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (6)

1. The utility model provides a head fixing device in eye operation, includes operating table (1), its characterized in that, the cavity has been seted up to the inside of operating table (1), fixedly connected with biax motor (2) on the bottom inner wall of cavity, all fixedly connected with lead screw (3) on two output shafts of biax motor (2), the one end that two lead screws (3) keep away from each other rotates respectively and connects on the left side inner wall and the right side inner wall of cavity, all threaded connection has nut (4) on two lead screws (3), the top of two nuts (4) is fixedly connected with connecting rod (5), two slide holes have been seted up on the top inner wall of cavity, the top of connecting rod (5) runs through corresponding slide hole and with slide hole's inner wall sliding connection, the top of two connecting rods (5) is fixedly connected with fixed plate (6), the top fixedly connected with headrest (7) of operating table (1);

the top fixedly connected with support (8) of operating table (1), sliding connection has depression bar (9) on support (8), and bottom fixedly connected with clamp plate (10) of depression bar (9), a plurality of draw-in grooves (11) have been seted up to equidistant on the right side of depression bar (9), and the top fixedly connected with box (13) of support (8), the inside of box (13) is provided with positioning mechanism, and positioning mechanism cooperatees with draw-in groove (11).

2. The head fixing device in eye surgery according to claim 1, wherein the top of the bracket (8) is fixedly connected with a return spring (12), and the top end of the return spring (12) is fixedly connected to the compression bar (9).

3. The head fixation device in eye surgery according to claim 1, wherein the positioning mechanism comprises a moving rod (14), an auxiliary spring (16), a pushing rod (17), a triangle block (18), a telescopic rod (19), a sliding rod (20), an unlocking rod (23) and a clamping rod (25);

the bottom sliding connection of movable rod (14) is on the bottom inner wall of box (13), the right-hand member fixed connection of auxiliary spring (16) is on the right side inner wall of box (13), the left end fixed connection of auxiliary spring (16) is on the right side of movable rod (14), the right-hand member of kelly (25) runs through the left side of box (13) and fixed connection is on the left side of movable rod (14), the left end swing joint of kelly (25) is in corresponding draw-in groove (11), the bottom of catch bar (17) rotates to be connected in the left side of movable rod (14), the top of catch bar (17) rotates to be connected in the bottom of triangle (18), the top of telescopic link (19) is fixed connection on the top inner wall of box (13), the bottom of telescopic link (19) is fixed connection on the left side of triangle (18), the top sliding connection of slide bar (20) is on the top inner wall of box (13), the bottom of telescopic link (20) matches with triangle (18), the left end of kelly (23) runs through the right side of box (13) and is fixed connection on the slide bar (20).

4. A head fixing device in eye surgery according to claim 3, wherein the bottom inner wall of the box body (13) is provided with a first chute (15), the bottom end of the moving rod (14) is slidably connected in the first chute (15), the top inner wall of the box body (13) is provided with a second chute (22), and the top end of the sliding rod (20) is slidably connected in the second chute (22).

5. A head fixation device in eye surgery according to claim 3, characterized in that the bottom end of the slide bar (20) is rotatably connected to a squeeze wheel (21), and the squeeze wheel (21) is in rolling contact with the top of the triangle block (18).

6. A head fixing device in an eye surgery according to claim 3, wherein the unlocking rod (23) is sleeved with a compression spring (24), the left end of the compression spring (24) is fixedly connected to the right side of the box body (13), and the right end of the compression spring (24) is fixedly connected to the unlocking rod (23).