Suturing-free contact lens fixing ring

Abstract

The utility model relates to a suturing-free contact lens fixing ring which comprises a fixing ring body, and the diameter of the top of the fixing ring body is smaller than that of the bottom of the fixing ring body. The boss is arranged at the top of the fixing ring body; the clamping groove is formed in the inner side of the boss; the supporting feet are connected to the bottom of the fixing ring body and extend outwards; and the lens is detachably clamped in the clamping groove. According to the suture-free contact lens fixing ring, the supporting feet are arranged at the bottom of the fixing ring body, and the phenomenon that the fixing ring body and a lens shift or incline to cause interruption of an operation is avoided by utilizing the principle that a triangle is stable when canthus are opened; and the lenses with different shapes and angles can be replaced by arranging the clamping grooves, so that the eyeballs of the patient can be observed at different angles, medical staff can conveniently carry the eyeballs, the manufacturing cost is reduced, and the universality is higher.

Description

Technical Field

[0001] The utility model belongs to the technical field of ophthalmic surgical instruments, and in particular relates to a suture-free contact lens fixing ring. Background Art

[0002] Vitrectomy is a high-level modern microscopic ophthalmic surgery developed in the early 1970s. Its emergence is considered a major revolution in the history of ophthalmic treatment, breaking many surgical taboos that were previously untreatable and bringing light to countless patients with eye diseases.

[0003] Contact lens fixing rings are commonly used as auxiliary surgical instruments for fixing the cornea during vitrectomy surgery in ophthalmology. Their purpose is to prevent the contact lens from tilting or shifting.

[0004] Existing contact lenses are usually fixed in a fixing ring and can only complete eye imaging at a certain angle. When imaging a different field of view is required, the contact lens fixing ring with different lenses needs to be replaced. During the replacement process, the previously found corneal position will change, and the patient's cornea needs to be fixed again, which undoubtedly increases the operation time, reduces the patient's treatment experience, and also increases the production and processing costs, and has poor versatility. Utility Model Content

[0005] The utility model provides a suture-free contact lens fixing ring, which solves the defects of poor universality and high manufacturing cost of the existing contact lens fixing ring.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a suture-free contact lens fixing ring, which comprises:

[0007] A fixing ring body, wherein the diameter of the top of the fixing ring body is smaller than the diameter of the bottom;

[0008] A boss, wherein the boss is disposed on the top of the fixing ring body;

[0009] A card slot, the card slot is arranged on the inner side of the boss;

[0010] A support leg connected to the bottom of the fixing ring body and extending outward;

[0011] The lens is detachably clamped in the clamping slot.

[0012] Optimally, it also includes an adaptor portion arranged on the inner side of the bottom of the fixing ring body, a main anti-scratch portion arranged on the outer side of the bottom of the fixing ring body, and a secondary anti-scratch portion arranged on the outer side of the support foot.

[0013] Optimally, the lens is a plano-concave lens, which includes a lens body, an eyeball surface arranged at the bottom of the lens body, and a plane arranged at the top of the lens body.

[0014] Optimally, the lens is a concave-convex magnifying glass, which includes a lens body, an eyeball surface arranged at the bottom of the lens body, and a convex spherical surface arranged at the top of the lens body.

[0015] Optimally, the lens is a wide-field lens, which includes a lens body, an eyeball surface arranged at the bottom of the lens body, and a first concave surface arranged at the top of the lens body;

[0016] Optimally, the lens is a biconcave mirror, which includes a lens body, an eyeball surface arranged at the bottom of the lens body, and a second concave surface arranged at the top of the lens body.

[0017] Optimally, the lens is a circular prism, which includes a lens body, an eyeball surface arranged at the bottom of the lens body, and a first inclined surface obliquely arranged at the top of the lens body.

[0018] Optimally, the lens is a rounded biconcave mirror, which includes a lens body, an eyeball surface arranged at the bottom of the lens body, a second inclined surface obliquely arranged at the top of the lens body, and an oblique concave surface arranged at the top of the second inclined surface.

[0019] Optimally, it also includes an annular groove formed on the outer side of the lens and an identification ring clamped in the annular groove.

[0020] Optimally, the fixing ring body, the boss and the support foot are integrally connected and are all made of silicone material.

[0021] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0022] The suture-free contact lens fixing ring of the utility model is provided with a support foot at the bottom of the fixing ring body, and the triangle stability principle is used when the eye angle is stretched to avoid the fixing ring body and the lens from shifting or tilting, thereby causing the interruption of the operation; and the fixing slot is provided to complete the replacement of the lens without changing the corneal fixing position, thereby realizing imaging observation of the patient's eyeball at different angles, making it convenient for medical staff to carry, reducing the production cost, and having stronger versatility;

[0023] Furthermore, identification rings of different colors can assist medical staff in quickly identifying different types of lenses during surgery, reducing the risk of misusing lenses;

[0024] Furthermore, the fixing ring body, the boss and the support foot are connected in one piece, and the structural strength is higher. Moreover, it can be mass-produced and manufactured through the injection molding process, and is easy to process and shape. The whole is made of silicone material, which has good skin-friendly effect and is convenient for subsequent disinfection.

[0025] Furthermore, the arc-shaped design of the main anti-scratch portion and the secondary anti-scratch portion prevents sharp edges from scratching the patient's eyelids. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a cross-sectional view of the utility model;

[0027] Figure 2 It is a structural schematic diagram of the fixing ring of the utility model;

[0028] Figure 3 It is a top view of the fixing ring of the utility model;

[0029] Figure 4 It is a cross-sectional view of the fixing ring of the utility model;

[0030] Figure 5 It is a cross-sectional view of the lens in the first embodiment of the utility model;

[0031] Figure 6 This is a schematic diagram of the lens in Embodiment 1 of the present utility model when in use;

[0032] Figure 7 It is a cross-sectional view of the lens in the second embodiment of the present utility model;

[0033] Figure 8 This is a schematic diagram of the lens in the second embodiment of the present utility model when in use;

[0034] Fig. 9 It is a cross-sectional view of the lens in the third embodiment of the present utility model;

[0035] Fig.10 This is a schematic diagram of the lens in Embodiment 3 of the present utility model when in use;

[0036] Fig.11 It is a cross-sectional view of the lens in the fourth embodiment of the present utility model;

[0037] Fig.12 This is a schematic diagram of the lens in the fourth embodiment of the present utility model when in use;

[0038] Fig.13 It is a cross-sectional view of the lens in the fifth embodiment of the present utility model;

[0039] Fig.14 This is a schematic diagram of the lens in Embodiment 5 of the present utility model when in use;

[0040] Fig.15 It is a cross-sectional view of the lens in the sixth embodiment of the present utility model;

[0041] Fig.16 This is a schematic diagram of the lens in Embodiment 6 of the present utility model when in use;

[0042] Fig.17 It is a cross-sectional view of the lens in the seventh embodiment of the present utility model;

[0043] Fig.18 This is a schematic diagram of the lens in Embodiment 7 of the present utility model when in use;

[0044] Fig.19 It is a cross-sectional view of the lens in the eighth embodiment of the present utility model;

[0045] Fig. 20 This is a schematic diagram of the lens in Embodiment 8 of the present utility model when in use;

[0046] Description of reference numerals:

[0047] 1. Fixing ring body; 2. Boss; 3. Slot; 4. Main anti-scratch part; 5. Support foot; 6. Secondary anti-scratch part; 7. Adapter part; 8. Ring groove; 9. Identification ring;

[0048] 101, eyeball surface; 103, first inclined surface; 104, plane; 105, convex spherical surface; 106, first concave surface; 107, second concave surface; 108, second inclined surface; 109, oblique concave surface. DETAILED DESCRIPTION

[0049] The utility model is further described below in conjunction with the embodiments shown in the accompanying drawings.

[0050] Embodiment 1

[0051] like Figure 1 As shown in FIG. 1 , it is a schematic diagram of the structure of the suture-free contact lens fixing ring of the utility model, and the fixing ring comprises a fixing ring body 1, as shown in FIG. Figure 2-4 As shown, the fixing ring body 1 is in a truncated cone shape and the diameter of the top is smaller than the diameter of the bottom. The inside of the fixing ring body 1 is a hollow structure, which is used to avoid the eyeball of the patient during ophthalmic surgery.

[0052] The boss 2 is annular and integrally connected to the top of the fixing ring body 1. An annular clamping groove 3 is provided on the inner side of the boss 2 for clamping the lens. The fixing ring body 1 and the boss 2 are both made of silicone material. The lens is clamped in the clamping groove 3 by utilizing the deformation performance of the silicone material, and the lens can also be flexibly removed.

[0053] There are three groups of legs 5, which are integrally connected to the bottom of the fixing ring body 1 and extend outward, so the fixing ring structure can be integrally formed by injection molding. Figure 2 As shown, the outer side surface of the support leg 5 and the outer side surface of the fixing ring body 1 are on the same conical surface, so the support leg 5 expands outward as a whole. In ophthalmic surgery, the support leg 5 is against the corner of the patient's eye to open the corner of the eye, thereby obtaining a larger range of the eyeball and improving the accuracy of the surgery.

[0054] like Figure 3 As shown, the three groups of legs 5 are defined as the first leg, the second leg and the third leg (in Figure 3 From the perspective of the eye, the third leg on the leftmost side of the fixing ring body 1 and the first leg and the second leg on the rightmost side are respectively arranged on both sides of the third leg, that is, the third leg is at the vertex of the isosceles triangle, and the first leg and the second leg are at the two bottom corners of the isosceles triangle. When the eye corner is stretched, the principle of triangle stability is used to prevent the fixing ring body 1 and the lens from shifting or tilting, thereby interrupting the operation.

[0055] like Figure 4 As shown, the adapting portion 7 is tiltedly arranged on the inner side of the fixing ring body 1, and can press the eyeball when in use, so that the eyeball is confined in the adapting portion 7, which is convenient for subsequent surgery. The main anti-scratch portion 4 is arranged on the outer side of the fixing ring body 1, and the auxiliary anti-scratch portion 6 is arranged on the outer side of the support foot 5. The main anti-scratch portion 4 and the auxiliary anti-scratch portion 6 are both arc-shaped to prevent sharp edges from scratching the patient's eyelids.

[0056] The fixing ring body 1, the boss 2 and the support leg 5 are connected in one piece, and the structural strength is higher. Moreover, the fixing ring body 1, the boss 2 and the support leg 5 can be mass-produced by the injection molding process, and the fixing ring body 1 and the support leg 5 can be easily processed and molded. The fixing ring body 1 and the boss 2 are integrally connected, and the structural strength is higher. Moreover, the fixing ring body 1 and the support leg 5 can be mass-produced by the injection molding process, and the processing is easy ... are integrally connected, and the structural strength is higher. Moreover, the fixing ring body 1 and the support

[0057] The lens is composed of high-refractive-index glass, which provides a wider field of view with less distortion and reflection, thereby producing clear images of the peripheral and posterior retina and vitreous body, and is used to observe the fundus and retina near the equator in phakic or artificial-phakic eyes and to perform delicate surgery.

[0058] like Figure 5 As shown, it is a cross-sectional view of the lens in this embodiment. In this embodiment, the lens is a plano-concave lens, a group of planes 104 are arranged on the top of the lens body, and an eyeball surface 101 matching the curvature of the cornea is arranged on the bottom of the lens body. The lens directly contacts the cornea to produce a real image of the fundus, and the surgeon can observe the fundus and the surrounding area more intuitively, thereby reducing the difficulty and risk of the operation.

[0059] like Figure 6 As shown in the figure, the lens can observe a 36° angle of view directly below the patient's eye. A ring groove 8 is provided on the outside of the lens body, and a red identification ring 9 is provided inside the ring groove 8 to ensure that medical staff can quickly identify the lens during surgery and reduce the risk of misusing the lens.

[0060] Embodiment 2

[0061] The technical solution of this embodiment is almost the same as that of the first embodiment, and the only difference is the lens structure. Figure 7, which is a cross-sectional view of the lens in this embodiment. In this embodiment, the lens is a concave-convex magnifying lens. The bottom of the lens body is provided with an eyeball surface 101 that matches the curvature of the cornea. The lens directly contacts the cornea to produce a real fundus image. The surgeon can observe the fundus and the surrounding area more intuitively, thereby reducing the difficulty and risk of the operation. The top of the lens body is provided with a convex spherical surface 105, and the curvature of the convex spherical surface 105 is R28.

[0062] like Figure 8 As shown in the figure, the lens can observe a 30° angle of view directly below the patient's eye. A ring groove 8 is provided on the outside of the lens body, and an orange identification ring 9 is provided inside the ring groove 8 to ensure that medical staff can quickly identify the lens during surgery and reduce the risk of misusing the lens.

[0063] Embodiment 3

[0064] The technical solution of this embodiment is almost the same as that of the first embodiment, and the only difference is the lens structure. Fig. 9 , which is a cross-sectional view of the lens in this embodiment. In this embodiment, the lens is a wide-field lens. The bottom of the lens body is provided with an eyeball surface 101 that matches the curvature of the cornea. The lens directly contacts the cornea to produce a real fundus image. The surgeon can observe the fundus and the surrounding area more intuitively, thereby reducing the difficulty and risk of the operation. The top of the lens body is provided with a first concave surface 106, and the curvature of the first concave surface 106 is R7.6.

[0065] like Fig.10 As shown in the figure, the lens can observe a 48° angle of view directly below the patient's eye. A ring groove 8 is provided on the outside of the lens body, and a yellow identification ring 9 is provided inside the ring groove 8 to ensure that medical staff can quickly identify the lens during surgery and reduce the risk of misusing the lens.

[0066] Embodiment 4

[0067] The technical solution of this embodiment is almost the same as that of the first embodiment, and the only difference is the lens structure. Fig.11 , which is a cross-sectional view of the lens in this embodiment. In this embodiment, the lens is a double concave lens. The bottom of the lens body is provided with an eyeball surface 101 that matches the curvature of the cornea. The lens directly contacts the cornea to produce a real fundus image. The surgeon can observe the fundus and the surrounding area more intuitively, thereby reducing the difficulty and risk of the operation. The top of the lens body is provided with a second concave surface 107, and the curvature of the second concave surface 107 is R6.

[0068] like Fig.12As shown in the figure, the lens can observe a 25° angle of view directly below the patient's eye. A ring groove 8 is provided on the outside of the lens body, and a green identification ring 9 is provided inside the ring groove 8 to ensure that medical staff can quickly identify the lens during surgery and reduce the risk of misusing the lens.

[0069] Embodiment 5

[0070] The technical solution of this embodiment is almost the same as that of the first embodiment, and the only difference is the lens structure. Fig.13 , which is a cross-sectional view of the lens in this embodiment. In this embodiment, the lens is a round prism, and the bottom of the lens body is provided with an eyeball surface 101 that matches the curvature of the cornea. The lens directly contacts the cornea to produce a real fundus image, and the surgeon can observe the fundus and the surrounding area more intuitively, thereby reducing the difficulty and risk of the operation. The top of the lens body is inclined with a first inclined surface 103, and the inclination angle of the first inclined surface 103 is 20°.

[0071] like Fig.14 As shown in the figure, the lens can observe the visual angle of 36° below the left side of the patient's eye. A ring groove 8 is provided on the outside of the lens body, and a blue identification ring 9 is provided in the ring groove 8 to ensure that medical staff can quickly identify the lens during surgery and reduce the risk of misusing the lens.

[0072] Embodiment 6

[0073] The technical solution of this embodiment is almost the same as that of the first embodiment, and the only difference is the lens structure. Fig.15 , which is a cross-sectional view of the lens in this embodiment. In this embodiment, the lens is a round prism, and the bottom of the lens body is provided with an eyeball surface 101 that matches the curvature of the cornea. The lens directly contacts the cornea to produce a real fundus image, and the surgeon can observe the fundus and the surrounding area more intuitively, thereby reducing the difficulty and risk of the operation. The top of the lens body is inclined with a first inclined surface 103, and the inclination angle of the first inclined surface 103 is 30°.

[0074] like Fig.16 As shown in the figure, the lens can observe the visual angle of 33° below the left side of the patient's eye. A ring groove 8 is provided on the outer side of the lens body, and a cyan identification ring 9 is provided in the ring groove 8 to ensure that medical staff can quickly identify the lens during surgery and reduce the risk of misusing the lens.

[0075] Embodiment 7

[0076] The technical solution of this embodiment is almost the same as that of the first embodiment, and the only difference is the lens structure. Fig.17, which is a cross-sectional view of the lens in this embodiment. In this embodiment, the lens is a round prism, and the bottom of the lens body is provided with an eyeball surface 101 that matches the curvature of the cornea. The lens directly contacts the cornea to produce a real fundus image, and the surgeon can observe the fundus and the surrounding area more intuitively, thereby reducing the difficulty and risk of the operation. The top of the lens body is inclinedly provided with a first inclined surface 103, and the inclination angle of the first inclined surface 103 is 60°.

[0077] like Fig.18 As shown in the figure, the lens can observe the visual angle of 22° above the left side of the patient's eye. A ring groove 8 is provided on the outer side of the lens body, and a purple identification ring 9 is provided in the ring groove 8 to ensure that medical staff can quickly identify the lens during surgery and reduce the risk of misusing the lens.

[0078] Embodiment 8

[0079] The technical solution of this embodiment is almost the same as that of the first embodiment, and the only difference is the lens structure. Fig.19 , which is a cross-sectional view of the lens in this embodiment. In this embodiment, the lens is a round prism-shaped biconcave lens. The bottom of the lens body is provided with an eyeball surface 101 that matches the curvature of the cornea. The lens directly contacts the cornea to produce a real fundus image. The surgeon can observe the fundus and the surrounding area more intuitively, thereby reducing the difficulty and risk of the operation. The top of the lens body is provided with a second inclined surface 108, and the top of the second inclined surface 108 is provided with an inclined concave surface 109. The inclination angle of the second inclined surface 108 is 30°, and the curvature of the inclined concave surface 109 is R6.

[0080] like Fig. 20 As shown in the figure, the lens can observe the visual angle of 18° above the left side of the patient's eye. A ring groove 8 is provided on the outer side of the lens body, and a black identification ring 9 is provided in the ring groove 8 to ensure that medical staff can quickly identify the lens during surgery and reduce the risk of misusing the lens.

[0081] The suture-free contact lens fixing ring of the utility model is provided with a support foot 5 at the bottom of the fixing ring body 1, and the principle of triangle stability is utilized when the canthus is stretched to open the eye, so as to avoid the fixing ring body 1 and the lens from shifting or tilting, thereby causing interruption of the operation; and by providing a card slot 3, lenses of different shapes and angles can be replaced without changing the position of the cornea, so as to achieve observation of different angles of the patient's eyeball, and the utility model has stronger versatility. The identification rings 9 of different colors can assist medical staff in quickly identifying different types of lenses during the operation, thereby reducing the risk of misusing lenses.

[0082] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A suture-free contact lens fixing ring, characterized in that it include: A fixing ring body (1), wherein the diameter of the top of the fixing ring body (1) is smaller than the diameter of the bottom; A boss (2), wherein the boss (2) is arranged on the top of the fixing ring body (1); A card slot (3), wherein the card slot (3) is arranged on the inner side of the boss (2); A support leg (5), the support leg (5) being connected to the bottom of the fixing ring body (1) and extending outward; A lens is detachably snap-fitted into the snap-fit ​​slot (3).

2. The suture-free contact lens fixing ring according to claim 1, characterized in that: It also comprises an adapting portion (7) arranged on the inner side of the bottom of the fixing ring body (1), a main anti-scratch portion (4) arranged on the outer side of the bottom of the fixing ring body (1), and a secondary anti-scratch portion (6) arranged on the outer side of the supporting foot (5).

3. The suture-free contact lens fixing ring according to claim 1, characterized in that: The lens is a plano-concave lens, comprising a lens body, an eyeball surface (101) arranged at the bottom of the lens body, and a plane (104) arranged at the top of the lens body.

4. The suture-free contact lens fixing ring according to claim 1, characterized in that: The lens is a concave-convex magnifying glass, comprising a lens body, an eyeball surface (101) arranged at the bottom of the lens body, and a convex spherical surface (105) arranged at the top of the lens body.

5. The suture-free contact lens fixing ring according to claim 1, characterized in that: The lens is a wide-field lens, comprising a lens body, an eyeball surface (101) arranged at the bottom of the lens body, and a first concave surface (106) arranged at the top of the lens body.

6. The suture-free contact lens fixing ring according to claim 1, characterized in that: The lens is a biconcave mirror, comprising a lens body, an eyeball surface (101) arranged at the bottom of the lens body, and a second concave surface (107) arranged at the top of the lens body.

7. The suture-free contact lens fixing ring according to claim 1, characterized in that: The lens is a circular prism, which comprises a lens body, an eyeball surface (101) arranged at the bottom of the lens body, and a first inclined surface (103) obliquely arranged at the top of the lens body.

8. The suture-free contact lens fixing ring according to claim 1, characterized in that: The lens is a round prism-shaped biconcave lens, comprising a lens body, an eyeball surface (101) arranged at the bottom of the lens body, a second inclined surface (108) obliquely arranged at the top of the lens body, and an oblique concave surface (109) arranged at the top of the second inclined surface (108).

9. The suture-free contact lens fixing ring according to claim 1, characterized in that: It also includes an annular groove (8) formed on the outer side of the lens and an identification ring (9) clamped in the annular groove (8).

10. The suture-free contact lens fixing ring according to claim 1, characterized in that: The fixing ring body (1), the boss (2) and the support foot (5) are integrally connected and are all made of silicone material.

Images