Eyelid opening device for taking off and wearing orthokeratology lens

Abstract

The utility model relates to the technical field of ophthalmology medical instruments, and discloses an eyelid distraction device for taking off and wearing an orthokeratology lens, which comprises a base, a fixing clamp, a U-shaped cylindrical rod, a chin support, an eyelid distraction component and a forehead baffle, the eyelid distraction component comprises a first sliding block, a second sliding block, a third sliding block, a gear set, an upper distraction device and a lower distraction device, a first sliding block is arranged in the middle of the U-shaped cylindrical rod. According to the eyelid opening device for taking off and putting on the orthokeratology lens, the risks of lens pollution and damage are reduced, the safety of the cornea is protected through the soft eyelid opening assembly material and the adjustable structural design, the eyelid opening device is suitable for users of different age groups, different facial forms and different eye forms, the application range is wide, and the eyelid opening device is simple in structure, convenient to operate and suitable for popularization and application. And the manual adjusting function of the eyelid opening assembly enables the user to adjust the eyelid opening assembly according to own requirements, so that the use comfort level and the operation accuracy are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ophthalmic medical instruments, in particular to an eyelid opening device for wearing and removing orthokeratology lenses. Background Art

[0002] Orthokeratology is a hard contact lens that corrects vision by changing the shape of the cornea. It is widely used in the treatment of refractive errors such as myopia and astigmatism, and is especially effective in controlling myopia in adolescents.

[0003] The traditional method of wearing and removing orthokeratology lenses mainly relies on manual operation by the user, requiring the user to use both hands to hold open the eyelids and wear or remove the lenses. This method is not only difficult to operate, but also easily causes fingers to contact the lens surface, increasing the risk of lens contamination. In addition, when wearing or removing the lenses, if the hands are unstable or the operation is improper, it may also cause damage to the cornea. There are currently some auxiliary devices on the market, such as handheld eyelid retractors and auxiliary instruments mounted on the desktop. These devices can reduce the difficulty of manual operation to a certain extent. However, these devices have some design deficiencies. The handheld eyelid retractor still requires the user to manually hold open the eyelids, which makes it difficult to completely free both hands. Although the auxiliary instruments mounted on the desktop can provide a certain degree of stability, they are usually complex in structure and not easy to adjust. It is difficult to adjust to the needs of different users' own conditions and is difficult to operate. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the utility model provides an eyelid opening device for wearing and removing orthokeratology lenses, which has the advantages of assisting in opening the user's eyelids, thereby simplifying the wearing and removal process of orthokeratology lenses, reducing the difficulty of operation, and reducing the risk of lens contamination and corneal damage, thereby solving the problems raised in the background technology.

[0005] The present invention provides the following technical solutions: an eyelid stretching device for wearing and removing orthokeratology lenses, comprising a base, a fixing clamp, a U-shaped cylindrical rod, a chin rest, an eyelid stretching assembly and a forehead baffle, wherein the eyelid stretching assembly comprises a first slider, a second slider, a third slider, a gear set, an upper stretcher and a lower stretcher, a first slider is provided at the middle portion of the U-shaped cylindrical rod, a threaded hole 1 is provided in the first slider, a hand-tightening bolt 3 is provided inside the threaded hole 1, a second slider is provided inside the first slider, a threaded hole 2 is provided in the second slider, and a hand-tightening bolt 4 is connected to the inner thread of the threaded hole 2, A third slider is provided inside the second slider, and a threaded hole three is provided on the third slider, and a hand-tightening bolt five is connected to the internal thread of the threaded hole three. A gear group is provided on the side of the third slider, and the gear group includes gear one, gear two, gear three and a hand-tightening bolt six. The third slider is provided with a threaded hole four, and the internal thread of the threaded hole four is connected to the hand-tightening bolt six. The side of the hand-tightening bolt six is fixedly connected to gear one, the gear one is meshed with gear two, and the surface of the gear two is meshed with gear three. A lower spreader is installed on the side of the gear two, and an upper spreader is installed on the side of the gear three.

[0006] Preferably, a fixing clamp is provided at the bottom of the base, the fixing clamp is provided with a threaded hole four, and the internal thread of the threaded hole four is connected with a hand-tightened bolt one.

[0007] Preferably, the base is provided with a plurality of fixing holes, wherein a U-shaped cylindrical rod is inserted into the interior of one group of the fixing holes.

[0008] Preferably, a cylindrical tube 1 is provided on the surface of the U-shaped cylindrical rod, a threaded hole 5 is opened in the cylindrical tube 1, and the internal thread of the threaded hole 5 is connected to a hand-tightened bolt 2, and a chin rest is fixedly installed on the outer arc surface of the cylindrical tube 1.

[0009] Preferably, a cylindrical tube 2 is provided on the surface of the U-shaped cylindrical rod, a threaded hole 6 is opened in the cylindrical tube 2, and the internal thread of the threaded hole 6 is connected with a hand-tightened bolt 7, and a forehead baffle is fixedly installed on the outer arc surface of the cylindrical tube 2.

[0010] Preferably, the middle portion of the chin rest and forehead baffle is an arc-shaped structure and is made of soft silicone material.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] The eyelid stretcher device for wearing and removing orthokeratology lenses improves operational stability through the support of the chin rest and forehead baffle, keeps the user's head stable during the wearing and removing process, reduces operational errors caused by head shaking, and reduces the risk of lens contamination and damage. The soft eyelid stretcher component material and adjustable structural design protect corneal safety. The device is suitable for users of different age groups, different face shapes and eye shapes, and has a wide range of applications. The invention has a simple structure and is easy to operate, making it particularly suitable for novice and inexperienced orthokeratology lens wearers. The manual adjustment function of the eyelid stretcher component allows the user to adjust according to their own needs, thereby improving user comfort and operational accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of the device of the utility model;

[0014] Figure 2 For this utility model Figure 1 Schematic diagram of the back structure;

[0015] Figure 3 This is a schematic diagram of the structure of the eyelid opening component of the present invention.

[0016] In the figure: 1. Base; 11. Fixing hole; 2. Fixing clip; 21. Thumb bolt 1; 3. U-shaped cylindrical rod; 4. Chin rest; 41. Cylindrical barrel 1; 42. Thumb bolt 2; 5. Eyelid spreader assembly; 51. First slider; 511. Thumb bolt 3; 52. Second slider; 521. Thumb bolt 4; 53. Third slider; 531. Thumb bolt 5; 54. Gear set; 541. Gear 1; 542. Gear 2; 543. Gear 3; 544. Thumb bolt 6; 55. Upper spreader; 56. Lower spreader; 6. Forehead baffle; 61. Cylindrical barrel 2; 62. Thumb bolt 7. DETAILED DESCRIPTION

[0017] 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.

[0018] See also Figure 1-3, an eyelid stretching device for wearing and removing orthokeratology lenses, comprising a base 1, a fixing clamp 2, a U-shaped cylindrical rod 3, a chin rest 4, an eyelid stretching assembly 5 and a forehead baffle 6, the eyelid stretching assembly 5 comprising a first slider 51, a second slider 52, a third slider 53, a gear set 54, an upper stretcher 55 and a lower stretcher 56, a first slider 51 is provided in the middle of the U-shaped cylindrical rod 3, the first slider 51 is provided with a threaded hole 1, and a hand-tightening bolt 3 511 is provided inside the threaded hole 1, a second slider 52 is provided inside the first slider 51, the second slider 52 is provided with a threaded hole 2, and the threaded hole 2 The inner thread is connected with a hand-tightening bolt 4 521. The inner part of the second slider 52 is provided with a third slider 53. The third slider 53 is provided with a threaded hole 3, and the inner thread of the threaded hole 3 is connected with a hand-tightening bolt 531. The side of the third slider 53 is provided with a gear set 54. The gear set 54 includes a gear 1 541, a gear 2 542, a gear 3 543 and a hand-tightening bolt 6 544. The third slider 53 is provided with a threaded hole 4, and the inner thread of the threaded hole 4 is connected with a hand-tightening bolt 6 544. The side of the hand-tightening bolt 6 544 is fixedly connected with a gear 1 541, and the gear 1 541 is meshed with the gear 2 542. The surface of the second gear 542 is meshed with the third gear 543. The side of the second gear 542 is installed with a lower spreader 56. The side of the third gear 543 is installed with an upper spreader 55. The first slider 51 is installed in the middle of the U-shaped cylindrical rod 3. The third hand screw 511 is used to adjust the overall height of the eyelid spreader assembly 5. The second slider 52 uses the fourth hand screw 521 to adjust the longitudinal distance between the upper spreader 55 and the lower spreader 56 and the human eye. By tightening the fifth hand screw 531, the third slider 53 can be adjusted to adjust the lateral distance between the upper spreader 55 and the lower spreader 56 and the human eye. The upper spreader 55 The upper and lower spreaders 55 and 56 are installed at the end of the third slider 53. An arc-shaped spreader is provided on one side of the upper spreader 55 and the lower spreader 56, which is ergonomically designed. The spreader is made of medical-grade soft silicone material to avoid damage to the eyelids. The rotation of the upper spreader 55 and the lower spreader 56 is completed by the gear set 54 and the hand-tightening bolt six 544. When the hand-tightening bolt six 544 is tightened, the gear one 541 rotates. Due to the engagement of the gears, the gear two 542 and the gear three 543 will rotate in opposite directions, thereby driving the upper spreader 55 and the lower spreader 56 to rotate in opposite directions.

[0019] Among them, a fixing clamp 2 is provided at the bottom of the base 1, and the fixing clamp 2 is provided with a threaded hole four, and the internal thread of the threaded hole four is connected to a hand-tightening bolt 21. The base 1 provides stable support for the entire device and is fixed to a desktop or other flat surface through two fixing clamps 2. The fixing clamp 2 is made of high-strength metal or plastic material. By tightening the hand-tightening bolt 21, the desktop is firmly clamped to prevent the device from sliding during use.

[0020] Among them, the base 1 is provided with several fixing holes 11, and a U-shaped cylindrical rod 3 is inserted into the inside of one group of fixing holes 11. There are multiple rows of fixing holes 11 on the base 1 for installing and adjusting the position of the U-shaped cylindrical rod 3. The bottom of the base 1 is provided with an anti-slip pad to further enhance stability and anti-slip effect.

[0021] Among them, a cylindrical tube 41 is provided on the surface of the U-shaped cylindrical rod 3, and a threaded hole five is opened in the cylindrical tube 41, and the internal thread of the threaded hole five is connected to a hand-tightening bolt 2 42, and a chin rest 4 is fixedly installed on the outer arc surface of the cylindrical tube 41. The chin rest 4 is installed at the lower end of the U-shaped cylindrical rod 3 to support the user's chin and keep the head stable. The middle part of the chin rest 4 is an arc structure, which is made of soft silicone material and covered with a non-slip coating on the surface to increase the comfort and stability of use. The chin rest 4 is connected to the U-shaped cylindrical rod 3 through the cylindrical tube 41. The height of the chin rest 4 is adjusted by a hand-tightening bolt 2 42 on the cylindrical tube 41 to adapt to the face shape and height of different users.

[0022] Among them, a cylindrical tube 2 61 is provided on the surface of the U-shaped cylindrical rod 3, and a threaded hole 6 is opened in the cylindrical tube 2 61, and the internal thread of the threaded hole 6 is connected with a hand-tightening bolt 7 62. The outer arc surface of the cylindrical tube 2 61 is fixedly installed with a forehead baffle 6, and the forehead baffle 6 is installed on the upper part of the U-shaped cylindrical rod 3 to support the user's forehead and further fix the head. The forehead baffle 6 is made of soft silicone material and is covered with a non-slip coating on the surface. The forehead baffle 6 is connected to the U-shaped cylindrical rod 3 through the cylindrical tube 2 61. The cylindrical tube 2 61 adjusts the height of the forehead baffle 6 through the hand-tightening bolt 7 62, thereby ensuring that the head remains comfortable and stable during the process of taking it off and wearing it.

[0023] The middle parts of the chin rest 4 and the forehead baffle 6 are arc-shaped structures and are made of soft silicone material.

[0024] Working principle: During the installation and adjustment process, fix the device to the desktop or other flat surface with two fixing clips 2 to ensure that the base 1 is stable. Then, according to the user's height and face shape, respectively tighten the hand screw bolt 2 42 and the hand screw bolt 7 62 to adjust the height of the chin support 4 and the forehead guard 6 so that the user can comfortably place the chin and forehead on the chin support 4 and the forehead guard 6 respectively. Adjust the hand screw bolt 3 511, the hand screw bolt 4 521 and the hand screw bolt 5 531 to make the upper spreader 55 and the lower spreader The device 56 can accurately fit the user's upper eyelids and lower eyelids. When in use, the user places the chin on the chin rest 4 and the forehead on the forehead baffle 6 to ensure that the head is stable. The user closes his eyes, puts the eyes close to the upper opener 55 and the lower opener 56, and turns the hand-tightening bolt 6 544 to gently open the upper eyelids and lower eyelids to ensure that the eyes are fully exposed. When wearing or removing the lenses, the user can manually adjust the angles of the upper opener 55 and the lower opener 56 to ensure smooth operation.

[0025] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0026] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An eyelid opening device for wearing orthokeratology lenses, characterized in that: The eyelid stretching device comprises a base (1), a fixing clamp (2), a U-shaped cylindrical rod (3), a chin support (4), an eyelid stretching assembly (5) and a forehead baffle (6), wherein the eyelid stretching assembly (5) comprises a first slider (51), a second slider (52), a third slider (53), a gear set (54), an upper stretcher (55) and a lower stretcher (56), wherein the middle portion of the U-shaped cylindrical rod (3) is provided with a first slider (51), a threaded hole 1 is provided on the first slider (51), and a hand-tightening bolt 3 (511) is provided inside the threaded hole 1, a second slider (52) is provided inside the first slider (51), a threaded hole 2 is provided on the second slider (52), and a hand-tightening bolt 4 (521) is connected to the threaded hole 2, a third slider (53) is provided inside the second slider (52), and the third slider (53) is provided inside the third slider The block (53) is provided with a threaded hole three, and the internal thread of the threaded hole three is connected with a hand-tightening bolt five (531). The side of the third slider (53) is provided with a gear group (54), and the gear group (54) includes a gear one (541), a gear two (542), a gear three (543) and a hand-tightening bolt six (544). The third slider (53) is provided with a threaded hole four, and the internal thread of the threaded hole four is connected with a hand-tightening bolt six (544). The side of the hand-tightening bolt six (544) is fixedly connected with gear one (541), the gear one (541) is meshed with gear two (542), the surface of the gear two (542) is meshed with gear three (543), the side of the gear two (542) is installed with a lower spreader (56), and the side of the gear three (543) is installed with an upper spreader (55).

2. The eyelid opening device for wearing orthokeratology lenses according to claim 1, characterized in that: A fixing clamp (2) is provided at the bottom of the base (1), and a threaded hole four is provided in the fixing clamp (2), and a hand-tightened bolt (21) is connected to the inner thread of the threaded hole four.

3. The eyelid opening device for wearing orthokeratology lenses according to claim 1, characterized in that: The base (1) is provided with a plurality of fixing holes (11), wherein a U-shaped cylindrical rod (3) is inserted into the interior of one group of the fixing holes (11).

4. The eyelid opening device for wearing orthokeratology lenses according to claim 1, characterized in that: The surface of the U-shaped cylindrical rod (3) is provided with a cylindrical tube (41), the cylindrical tube (41) is provided with a threaded hole (5), and the internal thread of the threaded hole (5) is connected with a hand-tightened bolt (42), and the outer arc surface of the cylindrical tube (41) is fixedly installed with a chin support (4).

5. The eyelid opening device for wearing orthokeratology lenses according to claim 1, characterized in that: The surface of the U-shaped cylindrical rod (3) is provided with a cylindrical tube 2 (61), the cylindrical tube 2 (61) is provided with a threaded hole 6, and the internal thread of the threaded hole 6 is connected with a hand-tightened bolt 7 (62), and the outer arc surface of the cylindrical tube 2 (61) is fixedly installed with a forehead baffle (6).

6. The eyelid opening device for wearing orthokeratology lenses according to claim 1, characterized in that: The middle parts of the chin support (4) and the forehead baffle (6) are arc-shaped structures and are made of soft silicone material.

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