Eyelid opening device for ophthalmic surgery

Abstract

The utility model relates to the technical field of ophthalmic surgical instruments, specifically, an eyelid opening device for ophthalmic surgery, the device comprises an operating table, a distance adjustment mechanism is installed on the operating table, the distance adjustment mechanism comprises a distance adjustment platform arranged on the operating table, the distance adjustment platform comprises a horizontally arranged base and four vertically arranged side walls, a lead screw is also installed on the distance adjustment platform, the rear end of the lead screw penetrates the rear side wall of the distance adjustment platform and is connected with a nut, the front end is rotatably connected to the front side wall of the distance adjustment platform, the front half of the lead screw has a thread rotation direction opposite to the rear half of the lead screw, two fixing mechanisms for fixing the distance adjustment mechanism on the operating table are respectively installed on the left and right sides of the distance adjustment platform, and the front and rear parts of the lead screw are respectively connected to a first eyelid opening device and a second eyelid opening device. The design of the distance adjustment mechanism will not block the doctor's line of sight, so that the doctor can observe the patient's condition at any time during the operation.

Description

Technical Field

[0001] The utility model relates to the technical field of ophthalmic surgical instruments, in particular to an eyelid opening device used in ophthalmic surgery. Background Art

[0002] The eyelid speculum plays a vital role in ophthalmic surgery. It can fix the patient's eyelids and keep the eyes stable during the operation to avoid interference with the operation due to involuntary movement of the eyelids. In addition, by fixing the eyelids with the eyelid speculum, the doctor can obtain a clear and undisturbed field of vision, which is crucial for delicate ophthalmic surgery.

[0003] In the prior art, a Chinese utility model patent with application number 202321811937.8 introduces an eyelid opening device for ophthalmic surgery, which includes a support plate and a clamping mechanism, wherein the clamping mechanism includes a third fixed block, a third connecting rod, a torsion spring, a connecting tube, a bracket and a clamping plate, and the inner wall of the support plate is provided with limited grooves on both sides, and the surface of the support plate is provided with connecting grooves on both sides. The eyelid opening device for ophthalmic surgery, through the arrangement of the third fixed block, the third connecting rod, the torsion spring, the connecting tube, the bracket and the clamping plate, under the action of the torsion spring, drives the bracket to tighten, so that the clamping plate can be clamped on both sides of the face of the person, so that the support plate can be fixed above the face, and then the position of the sliding block can be moved on one side of the support plate to align the position of the eye, and then the sliding block is fixed by connecting the threaded cover and the threaded tube, so that when performing the eyelid opening work, there is no need to keep holding the hand all the time, and the opening frame is more stable. However, when using the device, the doctor needs to adjust it above the patient's eyes, which will cause the device to block the doctor's line of sight during surgery, making it inconvenient for the doctor to observe the patient's condition at any time during surgery. Summary of the invention

[0004] The technical problem to be solved by the utility model is to design an eyelid opening device for ophthalmic surgery, which will not block the doctor's sight when in use, making it convenient for the doctor to observe the patient's condition at any time during the operation.

[0005] To solve the above technical problems, the utility model provides an eyelid opening device for ophthalmic surgery, including an operating table that can be moved up and down, and is characterized in that a distance adjusting mechanism that can move left and right is installed on the operating table, and the distance adjusting mechanism includes a distance adjusting platform arranged on the operating table, and the distance adjusting platform includes a horizontally arranged base and four vertically arranged side walls, and a lead screw is also installed on the distance adjusting platform, the rear end of the lead screw penetrates the rear side wall of the distance adjusting platform and is connected with a nut, and the front end is rotatably connected to the front side wall of the distance adjusting platform, the front half of the lead screw and the rear half of the lead screw have opposite rotation directions, and two fixing mechanisms for fixing the distance adjusting mechanism on the operating table are respectively installed on the left and right sides of the distance adjusting platform, and the front and rear parts of the lead screw are respectively connected to the first eyelid opener and the second eyelid opener, and the first eyelid opener is located directly in front of the second eyelid opener.

[0006] Preferably, the front and rear parts of the lead screw are respectively slidably mounted with a first slide plate and a second slide plate, and the left and right ends of the first slide plate and the second slide plate are respectively mounted with two first sliding blocks, and the inner sides of the left and right side walls of the distance adjustment platform are both provided with first slide rails compatible with the first sliding blocks, and the first and second support rods horizontally arranged in the front and rear directions are respectively installed on the first and second slide plates, and the first eyelid opener and the second eyelid opener are respectively arranged at the front end parts of the first and second support rods.

[0007] Preferably, a second sliding block is installed at the bottom of the distance-adjusting platform, a second sliding rail is provided on the operating table along its length direction, and the second sliding block is slidably arranged in the second sliding rail.

[0008] Preferably, a stop rail is provided on the operating table along its length direction and is located behind the second slide rail. The fixing mechanism includes a vertically arranged first nut block and a first bolt. A threaded hole is provided on the first nut block. The lower end of the first bolt passes through the threaded hole and can abut the stop rail. The first nut block is slidably arranged in the stop rail.

[0009] Preferably, two first support columns and two second support columns are vertically installed at the bottom of the operating table, the two first support columns are respectively sleeved in the two second support columns, the two second support columns are each provided with a threaded hole passing through the side walls thereof, two second nut blocks are respectively installed on the two second support columns, two second bolts are respectively installed on the ends of the two second nut blocks close to the two first support columns, and the two second bolts can respectively pass through the two threaded holes to abut the two first support columns.

[0010] Preferably, a support seat is installed at the bottom of the two second support columns, and a headrest is installed on the support seat.

[0011] Preferably, an inflatable bag is installed on the support seat, and a sponge is provided in the inflatable bag for resetting the inflatable bag after being squeezed. A first one-way valve for intake of air from the outside into the inflatable bag is installed on the inflatable bag. The inflatable bag is connected to the headrest through an air pipe, and a second one-way valve for intake of air from the inside of the inflatable bag into the headrest is installed in the air pipe.

[0012] In summary, the beneficial effects of the utility model are: the design of the distance adjusting mechanism will not block the doctor's line of sight, making it convenient for the doctor to observe the patient's condition at any time during the operation; a headrest is installed on the support seat to provide comfortable head support for the patient, and the design of the inflatable bag allows further fine-tuning of the height of the headrest, making it convenient for the doctor to fine-tune the distance from the eyelid speculum to the patient's eyes; through the up and down moving operating table and the left and right moving distance adjusting mechanism, the doctor can easily adjust the eyelid speculum to a distance suitable for the eyes, and the operation is simple and convenient; through the design of the stop rail and the bolt, the distance adjusting mechanism can be firmly fixed to ensure the stability of the eyelid speculum during the operation and avoid affecting the surgical effect due to the movement of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0014] Figure 1 A top view of a lid opening device for ophthalmic surgery;

[0015] Figure 2 An axonometric view of a lid opening device for use in ophthalmic surgery;

[0016] Figure 3 for Figure 1 A schematic diagram of the enlarged structure of the middle part A;

[0017] Figure 4 It is a schematic diagram of the cooperation between the first supporting column and the second supporting column.

[0018] In the figure: 1. operating table; 2. distance-adjusting platform; 3. base; 4. side wall; 5. lead screw; 6. nut; 71. first eyelid opener; 72. second eyelid opener; 81. first slide plate; 82. second slide plate; 9. first slider; 10. first slide rail; 810. first support rod; 820. second support rod; 12. second slider; 13. second slide rail; 14. stop rail; 15. first nut block; 16. first bolt; 17. first support column; 18. second support column; 19. second nut block; 20. second bolt; 21. support seat; 22. headrest; 23. inflatable bag; 24. first one-way valve; 25. trachea. DETAILED DESCRIPTION

[0019] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0020] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0021] The terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the feature. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0022] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0023] The following is a description of preferred embodiments of the present invention in conjunction with the accompanying drawings.

[0024] See attached Figure 1-4The utility model discloses an eyelid opening device for ophthalmic surgery, which structure includes an operating table 1 that can be moved up and down, and a distance adjusting mechanism that can be moved left and right is installed on the operating table 1. The distance adjusting mechanism includes a distance adjusting platform 2 arranged on the operating table 1, and the distance adjusting platform 2 includes a horizontally arranged base 3 and four vertically arranged side walls 4. A lead screw 5 is also installed on the distance adjusting platform 2. The rear end of the lead screw 5 passes through the rear side wall of the distance adjusting platform 2 and is connected with a nut 6, and the front end is rotatably connected to the front side wall of the distance adjusting platform 2. The front half of the lead screw 5 and the rear half of the lead screw 5 have opposite rotation directions. Two fixing mechanisms for fixing the distance adjusting mechanism on the operating table 1 are respectively installed on the left and right sides of the distance adjusting platform 2. The front and rear parts of the lead screw 5 are respectively connected to a first eyelid opener 71 and a second eyelid opener 72, and the first eyelid opener 71 is located directly in front of the second eyelid opener 72. When in use, the nut 6 is rotated. Since the front half of the thread and the rear half of the thread on the lead screw 5 rotate in opposite directions, the lead screw 5 rotates while allowing the first eyelid opener 71 and the second eyelid opener 72 to move in opposite directions, thereby adjusting to a distance suitable for the eyes.

[0025] As a further explanation of the present embodiment, the front and rear parts of the lead screw 5 are respectively slidably mounted with a first slide plate 81 and a second slide plate 82, and the left and right ends of the first slide plate 81 and the second slide plate 82 are respectively mounted with two first sliding blocks 9, and the inner sides of the left and right side walls of the distance adjustment platform 2 are both provided with first slide rails 10 adapted to the first sliding blocks 9, and the first support rod 810 and the second support rod 820 horizontally arranged in the front and rear directions are respectively installed on the first slide plate 81 and the second slide plate 82, and the first eyelid opener 71 and the second eyelid opener 72 are respectively arranged at the front end portions of the first support rod 810 and the second support rod 820.

[0026] Specifically, by rotating the nut 6, the threads on the first slide 81 and the second slide 82 cooperate with the threads on the lead screw 5, so that the first slide 81 and the second slide 82 move in opposite directions on the lead screw 5, thereby driving the first support rod 810 and the second support rod 820 connected to the first slide 81 and the second slide 82 to move in opposite directions, thereby enabling the first eyelid opener 71 and the second eyelid opener 72 to move in opposite directions and adjust to a distance suitable for the eyes and just above the eyes; at the same time, due to the cooperation between the first slider 9 and the first slide rail 10, the first slide 81 and the second slide 82 slide more smoothly and stably in the distance adjustment platform 2.

[0027] The first slide plate 81 is provided with a through hole, and the second support rod 820 can pass through the through hole and slideably cooperate with the first slide plate 81 .

[0028] As a further explanation of this embodiment, a second slider 12 is installed at the bottom of the distance adjustment platform 2, and a second slide rail 13 is provided on the operating table 1 along its length direction, and the second slider 12 is slidably arranged in the second slide rail 13. When in use, the distance adjustment mechanism can slide left and right on the operating table 1 to adjust the distance through the cooperation of the second slider 12 on the distance adjustment platform 2 and the second slide rail 13 on the operating table 1, so that the first eyelid opener 71 and the second eyelid opener 72 are just located above the patient's eyes, which is simple and convenient to operate, and reduces the operating burden of the doctor.

[0029] As a further explanation of this embodiment, a stop rail 14 is provided on the operating table 1 along its length direction and is located behind the second slide rail 13. The fixing mechanism includes a vertically arranged first nut block 15 and a first bolt 16. A threaded hole is provided on the first nut block 15. The lower end of the first bolt 16 passes through the threaded hole and can abut against the stop rail 14. The first nut block 15 is slidably arranged in the stop rail 14. Specifically, the bottom surface of the stop rail 4 is rough and has a large friction force. When the distance adjustment mechanism is adjusted to a suitable position, the first nut block 15 is twisted until the first bolt 16 abuts against the stop rail 4, so that the distance adjustment mechanism can be fixed to ensure the stability of the first eyelid opener 71 and the second eyelid opener 72 during surgery.

[0030] As a further explanation of the present embodiment, two first support columns 17 and two second support columns 18 are vertically installed at the bottom of the operating table 1. The two first support columns 17 are respectively sleeved in the two second support columns 18. The two second support columns 18 are both provided with threaded holes penetrating the side walls thereof. Two second nut blocks 19 are respectively installed on the two second support columns 18. Two second bolts 20 are respectively installed at the ends of the two second nut blocks 19 close to the two first support columns 17. The two second bolts 20 can respectively pass through the two threaded holes to abut the two first support columns 17. When in use, the two first support columns 17 are respectively sleeved in the two second support columns 18 and adjusted to a suitable height, the two second bolts 20 are respectively passed through the threaded holes of the two second support columns 18, and the two second nut blocks 19 are twisted until the ends of the two second bolts 20 are respectively pressed against the two first support columns 17, thereby respectively fixing the two first support columns 17 and the two second support columns 18.

[0031] As a further explanation of this embodiment, a support seat 21 is installed at the bottom of the two second support columns 18, and a headrest 22 is installed on the support seat 21. When in use, the arrangement of the support seat 21 makes the area of ​​the two second support columns 18 contacting the plane larger, the whole structure is more stable, and the arrangement of the headrest 22 makes the patient more comfortable when lying flat.

[0032] As a further explanation of this embodiment, an inflatable bag 23 is installed on the support seat 21, and a sponge is arranged inside the inflatable bag 23 for restoring the inflatable bag 23 after being squeezed. A first one-way valve 24 for introducing air from the outside to the inside of the inflatable bag 23 is installed on the inflatable bag 23. The inflatable bag 23 is connected to the headrest 22 through an air pipe 25, and a second one-way valve for introducing air from the inside of the inflatable bag 23 to the headrest 22 is installed in the air pipe 25. When in use, the inflatable bag 23 is pressed, and the gas in the inflatable bag 23 enters the headrest 22 through the air pipe 25. The headrest 22 is inflated and raised so that the first eyelid opener 71 and the second eyelid opener 72 can be close to the eyes when the patient lies flat. At this time, the sponge is squeezed and deformed, and the sponge rebounds and resets after the hand is released. The outside air enters the inflatable bag 23 through the first one-way valve 24, so that the height can be fine-tuned continuously so that the patient's eyes are close to the first eyelid opener 71 and the second eyelid opener 72.

[0033] The working principle of the utility model is as follows: first, the patient lies flat with his head on the headrest 22, the two first support columns 17 and the two second support columns 18 are matched to be set to a suitable height close to the patient's head, the distance adjustment mechanism is slid left and right on the operating table 1 until the distance adjustment mechanism is just above the patient's head, and then the two first nut blocks 15 are twisted until the two first bolts 16 are pressed against the stop rail 4, so that the distance adjustment mechanism can be fixed, and the nut 6 is turned to make the first slide plate 81 and the second slide plate 82 move in opposite directions on the lead screw 5, thereby driving the first support rod 810 and the second support rod 82 connected to the first slide plate 81 and the second slide plate 82. The support rod 820 moves in the opposite direction, so that the first eyelid opener 71 and the second eyelid opener 72 can move in the opposite direction, adjust to a distance suitable for the eyes and just above the eyes, and then press the inflatable bag 23, the gas in the inflatable bag 23 enters the headrest 22 through the trachea 25, and the headrest 22 is inflated and raised so that the first eyelid opener 71 and the second eyelid opener 72 can be close to the eyes when the patient lies flat, at this time the sponge is squeezed and deformed, and the sponge rebounds and resets after the hand is released, and the outside air enters the inflatable bag 23 through the first one-way valve 24, so that the height can be fine-tuned to make the patient's eyes close to the first eyelid opener 71 and the second eyelid opener 72. During the operation, the distance adjustment mechanism will not block the doctor's line of sight, which is convenient for the doctor to observe the patient's condition during the operation.

[0034] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, multiple improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A lid opening device for ophthalmic surgery, comprising an operating table (1) capable of moving up and down, characterized in that The operating table (1) is provided with a distance adjustment mechanism capable of moving left and right, the distance adjustment mechanism comprising a distance adjustment platform (2) arranged on the operating table (1), the distance adjustment platform (2) comprising a horizontally arranged base (3) and four vertically arranged side walls (4), the distance adjustment platform (2) is also provided with a lead screw (5), the rear end of the lead screw (5) passes through the rear side wall of the distance adjustment platform (2) and is connected to a nut (6), the front end is rotatably connected to the front side wall of the distance adjustment platform (2), the front half of the lead screw (5) and the rear half of the lead screw (5) have opposite rotation directions, the left and right sides of the distance adjustment platform (2) are respectively provided with two fixing mechanisms for fixing the distance adjustment mechanism on the operating table (1), the front and rear parts of the lead screw (5) are respectively connected to a first eyelid opener (71) and a second eyelid opener (72), the first eyelid opener (71) is located directly in front of the second eyelid opener (72).

2. The eyelid opening device for ophthalmic surgery according to claim 1, characterized in that The front and rear parts of the lead screw (5) are respectively slidably mounted with a first slide plate (81) and a second slide plate (82); the left and right ends of the first slide plate (81) and the second slide plate (82) are respectively mounted with two first sliders (9); the inner sides of the left and right side walls of the distance adjustment platform (2) are both provided with first slide rails (10) adapted to the first sliders (9); the first slide plate (81) and the second slide plate (82) are respectively mounted with a first support rod (810) and a second support rod (820) horizontally arranged in the front and rear directions; the first eyelid opener (71) and the second eyelid opener (72) are respectively arranged at the front ends of the first support rod (810) and the second support rod (820).

3. The eyelid opening device for ophthalmic surgery according to claim 2, characterized in that A second slide block (12) is installed at the bottom of the distance adjustment platform (2), a second slide rail (13) is provided on the operating table (1) along its length direction, and the second slide block (12) is slidably arranged in the second slide rail (13).

4. The eyelid opening device for ophthalmic surgery according to claim 3, characterized in that The operating table (1) is provided with a stop rail (14) located behind the second slide rail (13) along its length direction. The fixing mechanism comprises a vertically arranged first nut block (15) and a first bolt (16). The first nut block (15) is provided with a threaded hole. The lower end of the first bolt (16) passes through the threaded hole and can abut against the stop rail (14). The first nut block (15) is slidably arranged in the stop rail (14).

5. The eyelid opening device for ophthalmic surgery according to claim 1, characterized in that The bottom of the operating table (1) is provided with two first support columns (17) and two second support columns (18) which are vertically arranged. The two first support columns (17) are respectively sleeved in the two second support columns (18). The two second support columns (18) are provided with threaded holes penetrating through their side walls. The two second support columns (18) are respectively provided with two second nut blocks (19). The ends of the two second nut blocks (19) close to the two first support columns (17) are respectively provided with two second bolts (20). The two second bolts (20) can respectively pass through the two threaded holes and abut against the two first support columns (17).

6. The eyelid opening device for ophthalmic surgery according to claim 5, characterized in that A support seat (21) is installed at the bottom of the two second support columns (18), and a headrest (22) is installed on the support seat (21).

7. The eyelid opening device for ophthalmic surgery according to claim 6, characterized in that An inflatable bag (23) is mounted on the support seat (21), a sponge is arranged inside the inflatable bag (23) for resetting the inflatable bag (23) after being squeezed, a first one-way valve (24) is mounted on the inflatable bag (23) for introducing air from the outside into the inflatable bag (23), the inflatable bag (23) is connected to the headrest (22) via an air pipe (25), and a second one-way valve is mounted inside the air pipe (25) for introducing air from the inside of the inflatable bag (23) into the headrest (22).

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