Eye speculum convenient to adjust for ophthalmologic operation

Abstract

The utility model provides an eye speculum convenient to adjust for ophthalmologic operation, and relates to the technical field of medical instruments, the eye speculum comprises an adjusting block, nose pads are fixedly connected to two sides of the bottom of the adjusting block, and an adjusting groove I is formed in the top of the adjusting block. The distance between the nose support and the eyelid opening hook is adjusted according to the nose bridge and eyelid opening position of a patient needing an ophthalmologic operation, the threaded rod can move along with rotation of the internal threaded pipe by rotating the internal threaded pipe because the interior of the internal threaded pipe is in threaded connection with the threaded rod, and therefore the distance between the nose support and the eyelid opening hook is adjusted. By means of the design, the eye speculum is suitable for patients with different distances from eyes to the nose bridge. The upper eyelid and the lower eyelid of the eye of a patient needing to be operated are manually opened, the two eyelid opening hooks respectively hook the upper eyelid and the lower eyelid of the patient, and then the two nose pads are arranged on the outer side of the nose bridge of the patient, so that a supporting point can be provided for the eye speculum, and the situation that the eye speculum shakes in the process of the operation and influences the operation is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to an eyelid speculum for ophthalmic surgery which is easy to adjust. Background Art

[0002] Ophthalmic surgery is a very delicate surgical method. A clear field of vision is very important during the operation. The eyelid speculum is an indispensable tool in ophthalmic surgery and a special tool for ophthalmic surgery. Its function is to expand the eyelids, which is conducive to expanding the surgical field of view.

[0003] However, in the prior art, when using eyelid speculum for ophthalmic surgery to open the patient's eyelids, it was found that some eyelid speculum for ophthalmic surgery could not be fixed after opening the patient's eyelids, which may cause the eyelid speculum to shake during the ophthalmic surgery and affect the progress of the surgery.

[0004] Therefore, an eyelid speculum for ophthalmic surgery that is easy to adjust is proposed to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to solve the problems existing in the prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: an eyelid speculum for ophthalmic surgery that is easy to adjust, comprising: an adjustment block, nose pads are fixedly connected to both sides of the bottom of the adjustment block, an adjustment groove 1 is provided on the top of the adjustment block, adjustment groove 2 is penetrated on both sides of the inside of the adjustment groove 1, bearing holes 1 are provided on the other two sides of the inside of the adjustment groove 1, internal threaded tubes are embedded in the two bearing holes 1 through bearings, an adjustment component is provided inside the internal threaded tube, and an eyelid speculum component is provided on both sides of the adjustment component.

[0007] As a preferred embodiment, a movable groove is provided at the other end of one of the two bearing holes, a limiting groove is provided at the other end of one of the movable grooves, and the other movable groove passes through one side of the adjustment block.

[0008] As a preferred embodiment, the adjustment assembly includes a threaded rod, one end of which is fixedly connected to a limiting block, and the surface of the other end of the threaded rod is provided with a U-shaped connecting plate through a bearing sleeve, and the other side of the U-shaped connecting plate is fixedly connected to a fixing rod.

[0009] As a preferred embodiment, hollow worms are provided at both ends of the surface of the fixed rod through bearing sleeves, and semicircular adjusting block movable grooves are provided at both ends of the U-shaped connecting plate. Two bearing holes are provided on both sides of the two semicircular adjusting block movable grooves, and both ends of one side of the U-shaped connecting plate are fixedly connected to limit rods, and a rotating block is fixedly sleeved on the surface of one end of the hollow worm, and the surfaces of the two limit rods are movably embedded in the inside of the adjusting block.

[0010] As a preferred embodiment, the eyelid opening component includes a semicircular adjustment block, a side of the semicircular adjustment block is provided with worm gear teeth, a rotating shaft is fixedly embedded at the center of the semicircular adjustment block, one end of the semicircular adjustment block is fixedly connected to a connecting rod, and the other end of the connecting rod is fixedly connected to an eyelid opening hook.

[0011] As a preferred embodiment, the surface thread of the threaded rod is embedded in the interior of the internal threaded tube, the surface of the threaded rod is movably embedded in the interior of two bearing holes and a movable groove, and the surface of the limit block is movably embedded in the interior of the limit groove.

[0012] As a preferred embodiment, the surfaces of the two ends of the rotating shaft are embedded in the four bearing holes two through bearings, the surfaces of the two worm gear teeth are meshed and connected to the surfaces on both sides of the hollow worm, and the surfaces of the two semicircular adjustment blocks are movably embedded in the movable grooves of the two semicircular adjustment blocks.

[0013] Compared with the prior art, the advantages and positive effects of the present invention are:

[0014] The utility model discloses a lid retractor, before using the lid retractor, first, the distance between the nose pad and the lid retractor hook is adjusted according to the nose bridge and the lid opening position of the patient who needs eye surgery. By rotating the internal threaded tube, since the internal threaded tube is threadedly connected to the threaded rod, the threaded rod can move along with the rotation of the internal threaded tube, thereby adjusting the distance between the nose pad and the lid retractor hook. This design makes the lid retractor suitable for patients with different distances from the eye to the nose bridge; manually pry open the upper and lower eyelids of the patient's eyes to be operated on, hook the two lid retractor hooks on the upper and lower eyelids of the patient respectively, and then place the two nose pads on the outside of the patient's nose bridge. This design can provide a support point for the lid retractor, thereby preventing the lid retractor from shaking during the operation and affecting the operation; by rotating the rotating block, since the hollow worm and the semicircular adjusting block are meshed and connected, the semicircular adjusting block can follow the hollow worm to rotate the moving angle, so that the opening and closing angle of the lid retractor hook is changed. The doctor can adjust the opening and closing angle of the lid retractor hook by rotating the rotating block so that the patient's eye opening size is the size required for the operation, and this design makes the lid retractor easy to adjust. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1This is a schematic overview of an easily adjustable eyelid speculum for ophthalmic surgery provided by the present invention;

[0016] Figure 2 A side sectional view of an adjustment block of an easily adjustable eyelid speculum for ophthalmic surgery provided by the utility model;

[0017] Figure 3 A schematic diagram showing the connection between the adjustment component and the eyelid opening component of an eyelid speculum for eye surgery that is easily adjustable provided by the present invention;

[0018] Figure 4 This is a schematic diagram of an eyelid opening component of an eyelid opening device for ophthalmic surgery that is easy to adjust provided by the utility model.

[0019] Legend:

[0020] 1. Adjustment block; 101. Nose pad; 102. Adjustment slot 1; 103. Adjustment slot 2; 104. Bearing hole 1; 105. Movable slot; 106. Limiting slot; 107. Internal threaded tube; 2. Adjustment assembly; 201. Threaded rod; 202. Limiting block; 203. U-shaped connecting plate; 204. Fixed rod; 205. Hollow worm; 206. Movable slot of semicircular adjustment block; 207. Bearing hole 2; 208. Limiting rod; 209. Rotating block; 3. Eyelid opening assembly; 301. Semicircular adjustment block; 302. Worm gear; 303. Rotating shaft; 304. Connecting rod; 305. Eyelid opening hook. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-4 The utility model provides a technical solution: an eyelid speculum for ophthalmic surgery that is easy to adjust, comprising: an adjusting block 1, nose pads 101 are fixedly connected to both sides of the bottom of the adjusting block 1, an adjusting slot 102 is provided on the top of the adjusting block 1, and adjusting slots 2 103 are provided on both sides of the inside of the adjusting slot 102, and bearing holes 104 are provided on the other two sides of the inside of the adjusting slot 102, and internal threaded tubes 107 are embedded in the two bearing holes 104 through bearings, an adjusting component 2 is provided inside the internal threaded tube 107, and an eyelid speculum component 3 is provided on both sides of the adjusting component 2.

[0023] Specifically: the distance between the nose pad 101 and the eyelid opening hook 305 is adjusted according to the nose bridge and eyelid opening position of the patient who needs ophthalmic surgery. By rotating the internal threaded tube 107, since the internal threaded tube 107 is threadedly connected to the threaded rod 201, the threaded rod 201 can move with the rotation of the internal threaded tube 107, thereby adjusting the distance between the nose pad 101 and the eyelid opening hook 305. This design makes this eyelid opening device suitable for patients with different distances from the eyes to the nose bridge; manually pry open the upper and lower eyelids of the patient's eyes that need surgery, hook the two eyelid opening hooks 305 on the patient's upper and lower eyelids respectively, and then place the two nose pads 101 on the outside of the patient's nose bridge. This design can provide a support point for this eyelid opening device, avoiding the eyelid opening device from shaking during the operation and affecting the progress of the operation.

[0024] In one embodiment, a movable groove 105 is defined at the other end of each of the two bearing holes 104 , wherein a limiting groove 106 is defined at the other end of one of the movable grooves 105 , and the other movable groove 105 passes through one side of the adjustment block 1 .

[0025] Specifically, the movable groove 105 , the limiting groove 106 and the interior of the internal threaded tube 107 all provide movable space for the movement of the threaded rod 201 .

[0026] In one embodiment, the adjustment assembly 2 includes a threaded rod 201, one end of the threaded rod 201 is fixedly connected to a limit block 202, the surface of the other end of the threaded rod 201 is provided with a U-shaped connecting plate 203 through a bearing sleeve, and the other side of the U-shaped connecting plate 203 is fixedly connected to a fixing rod 204.

[0027] Specifically, the surface of the limiting block 202 fits in with the interior of the limiting groove 106 , and the diameter of the limiting block 202 is larger than the diameter of the threaded rod 201 but slightly smaller than the diameter of the limiting groove 106 .

[0028] In one embodiment, hollow worm gears 205 are provided at both ends of the surface of the fixed rod 204 through bearing sleeves, and semicircular adjustment block movable grooves 206 are provided at both ends of the U-shaped connecting plate 203. Bearing holes 207 are provided on both sides of the two semicircular adjustment block movable grooves 206. Both ends of one side of the U-shaped connecting plate 203 are fixedly connected to limit rods 208. A rotating block 209 is fixedly provided on the surface of one end of the hollow worm gear 205, and the surfaces of the two limit rods 208 are movably embedded in the interior of the adjustment block 1.

[0029] Specifically, the limiting rod 208 limits the U-shaped connecting plate 203 to prevent the U-shaped connecting plate 203 from rotating when the internal threaded tube 107 rotates.

[0030] In one embodiment, the eyelid opening component 3 includes a semicircular adjustment block 301, a worm gear 302 is provided on the side of the semicircular adjustment block 301, a rotating shaft 303 is fixedly embedded at the center of the semicircular adjustment block 301, one end of the semicircular adjustment block 301 is fixedly connected to a connecting rod 304, and the other end of the connecting rod 304 is fixedly connected to an eyelid opening hook 305.

[0031] Specifically, both ends of the rotating shaft 303 are fixedly connected to limit blocks to prevent the worm gear 302 from being separated from the hollow worm 205 .

[0032] In one embodiment, the surface thread of the threaded rod 201 is embedded in the interior of the internal threaded tube 107, the surface of the threaded rod 201 is movably embedded in the interior of two bearing holes 104 and a movable groove 105, and the surface of the limit block 202 is movably embedded in the interior of the limit groove 106.

[0033] Specifically, the limiting block 202 can only move inside the limiting groove 106 , limiting the movement of the threaded rod 201 and preventing the threaded rod 201 and the limiting rod 208 from escaping from the inside of the adjusting block 1 .

[0034] In one embodiment, the surfaces at both ends of the two rotating shafts 303 are embedded in the four bearing holes 207 through bearings, the surfaces of the two worm gear teeth 302 are meshed and connected to the surfaces on both sides of the hollow worm 205, and the surfaces of the two semicircular adjustment blocks 301 are movably embedded in the two semicircular adjustment block movable grooves 206.

[0035] Specifically: According to the transmission principle of the worm gear, the hollow worm gear 205 can drive the semicircular adjustment block 301 to rotate, while the semicircular adjustment block 301 cannot drive the hollow worm gear 205 to rotate, thereby preventing the interaction between the patient's eyelids from changing the opening and closing angle of the eyelid hook 305.

[0036] Working principle: Before using this eyelid opener, you must first adjust the distance between the nose pad 101 and the eyelid opening hook 305 according to the nose bridge and eyelid opening position of the patient who needs eye surgery. By rotating the internal threaded tube 107, since the internal threaded tube 107 is threadedly connected to the threaded rod 201, and the U-shaped connecting plate 203 is limited by the limiting rod 208, the threaded rod 201 drives the U-shaped connecting plate 203 to move along with the rotation of the internal threaded tube 107, thereby adjusting the distance between the nose pad 101 and the eyelid opening hook 305. This design makes this eyelid opener suitable for patients with different distances from the eye to the nose bridge; manually pry open the upper and lower eyelids of the patient's eye that needs surgery, The two eyelid opening hooks 305 are hooked onto the patient's upper and lower eyelids respectively, and then the two nose pads 101 are placed on the outside of the patient's nose bridge. This design can provide a support point for the eyelid opening device, preventing the eyelid opening device from shaking during the operation and affecting the progress of the operation; by rotating the rotating block 209, since the hollow worm 205 and the semicircular adjustment block 301 are engaged and connected, the semicircular adjustment block 301 can follow the hollow worm 205 to rotate the moving angle, so that the opening and closing angle of the eyelid opening hook 305 changes. The doctor can adjust the opening and closing angle of the eyelid opening hook 305 by rotating the rotating block 209 to adjust the patient's eyelid opening size to the size required for the operation. This design makes this eyelid opening device easy to adjust.

[0037] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. An eyelid speculum for ophthalmic surgery that is easy to adjust, characterized in that: include: An adjusting block (1) is provided, wherein nose pads (101) are fixedly connected to both sides of the bottom of the adjusting block (1), an adjusting groove (102) is provided on the top of the adjusting block (1), an adjusting groove (103) is provided on both sides of the inside of the adjusting groove (102), a bearing hole (104) is provided on the other two sides of the inside of the adjusting groove (102), internal threaded tubes (107) are embedded in the two bearing holes (104) through bearings, an adjusting component (2) is provided inside the internal threaded tubes (107), and an eyelid opening component (3) is provided on both sides of the adjusting component (2).

2. The adjustable eyelid speculum for ophthalmic surgery according to claim 1, characterized in that: The other ends of the two bearing holes (104) are each provided with a movable groove (105), the other end of one of the movable grooves (105) is provided with a limiting groove (106), and the other movable groove (105) passes through one side of the adjustment block (1).

3. The easily adjustable eyelid speculum for ophthalmic surgery according to claim 1, characterized in that: The adjustment assembly (2) comprises a threaded rod (201), one end of the threaded rod (201) is fixedly connected to a limit block (202), a surface of the other end of the threaded rod (201) is provided with a U-shaped connecting plate (203) via a bearing sleeve, and the other side of the U-shaped connecting plate (203) is fixedly connected to a fixing rod (204).

4. The easily adjustable eyelid speculum for ophthalmic surgery according to claim 3, characterized in that: Hollow worms (205) are provided at both ends of the surface of the fixed rod (204) through bearing sleeves, and semicircular adjustment block movable grooves (206) are provided at both ends of the U-shaped connecting plate (203). Two bearing holes (207) are provided on both sides of the interior of the two semicircular adjustment block movable grooves (206). Both ends of one side of the U-shaped connecting plate (203) are fixedly connected to limit rods (208), and a rotating block (209) is fixedly provided on the surface of one end of the hollow worm (205), and the surfaces of the two limit rods (208) are movably embedded in the interior of the adjustment block (1).

5. The easily adjustable eyelid speculum for ophthalmic surgery according to claim 1, characterized in that: The eyelid opening component (3) comprises a semicircular adjustment block (301), a worm gear (302) is provided on the side of the semicircular adjustment block (301), a rotating shaft (303) is fixedly embedded at the center of the semicircular adjustment block (301), one end of the semicircular adjustment block (301) is fixedly connected to a connecting rod (304), and the other end of the connecting rod (304) is fixedly connected to an eyelid opening hook (305).

6. The easily adjustable eyelid speculum for ophthalmic surgery according to claim 3, characterized in that: The surface thread of the threaded rod (201) is embedded in the interior of the internal threaded tube (107), the surface of the threaded rod (201) is movably embedded in the interior of two bearing holes (104) and a movable groove (105), and the surface of the limit block (202) is movably embedded in the interior of the limit groove (106).

7. The easily adjustable eyelid speculum for ophthalmic surgery according to claim 5, characterized in that: The surfaces of the two ends of the rotating shafts (303) are embedded in the four bearing holes (207) through bearings, the surfaces of the two worm gear teeth (302) are meshed and connected to the surfaces on both sides of the hollow worm (205), and the surfaces of the two semicircular adjustment blocks (301) are movably embedded in the two semicircular adjustment block movable grooves (206).

Images