Cornea moisturizing anti-dazzling screen suitable for ophthalmologic operation

Abstract

The utility model discloses a cornea moisturizing anti-dazzling screen suitable for an ophthalmologic operation, which belongs to the field of medical instruments and comprises an outer ring sheet, an inner ring sheet and an outer ring sheet, the plugging piece comprises a plugging outer wall, and the thickness of the plugging piece is the same as that of the outer ring piece; the inner ring piece comprises an inner ring outer wall and an inner ring inner wall, the inner ring inner wall of the inner ring piece is connected with the plugging outer wall of the plugging piece, the inner ring outer wall of the inner ring piece is connected with the outer ring inner wall of the outer ring piece, and the thickness of the inner ring piece is the same as that of the outer ring piece; the outer ring piece, the plugging piece and the inner ring piece have the same radian, and when the outer ring piece, the plugging piece and the inner ring piece are connected, the cornea moisturizing shading piece is provided with a concave face and a convex face. Through the arrangement, the moisturizing shading sheet can be adjusted into moisturizing shading sheets with different contours through disassembly or cutting, so that cornea water shortage or edema of a patient can be prevented through application in a surgical operation of a non-cornea area.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of medical apparatus and instruments, and particularly relates to a corneal moisturizing and light shielding sheet suitable for ophthalmic surgery. BACKGROUND

[0002] In ophthalmic surgery operation, the shadowless lamp or ophthalmic surgery microscope gives strong light illumination, and in the open eyelid state, the strong light is shot into the fundus retina through the cornea and pupil, and in addition to the necessary period of observing the internal eye for examination and operation and the like through the transparent cornea, the strong light not only causes fundus light damage, but also brings extreme discomfort and psychological fear to patients in most local anesthesia or surface anesthesia operations in ophthalmology. Especially when we need the patients in the open eyelid state to perform operation on the non-corneal area of the ocular surface, such as pterygium excision, lid ball adhesion separation ocular surface reconstruction, ciliary body photocoagulation and the like, or to perform vitrectomy and the like before or after the intraocular operation, it is necessary to frequently point water or apply an ophthalmic viscoelastic agent to prevent the naked cornea from drying, and the long operation time will also cause corneal epithelial edema, and a large piece of corneal epithelium needs to be removed for clear intraocular observation, which causes great damage to the cornea.

[0003] Therefore, a light shielding and moisturizing device capable of being attached to the cornea of a patient is designed, and the light shielding and moisturizing device is specifically a corneal moisturizing and light shielding sheet suitable for ophthalmic surgery. CONTENT OF THE UTILITY MODEL

[0004] In order to overcome the problems in the background art, the utility model adopts the following technical scheme:

[0005] A corneal moisturizing and light shielding sheet suitable for ophthalmic surgery, comprising: an outer ring sheet comprising an outer ring inner wall; a blocking sheet comprising a blocking outer wall, the thickness of the blocking sheet being the same as the thickness of the outer ring sheet; an inner ring sheet comprising an inner ring outer wall and an inner ring inner wall, the inner ring inner wall of the inner ring sheet being connected with the blocking outer wall of the blocking sheet, the inner ring outer wall of the inner ring sheet being connected with the outer ring inner wall of the outer ring sheet, and the thickness of the inner ring sheet being the same as the thickness of the outer ring sheet; the outer ring sheet, the blocking sheet and the inner ring sheet have the same curvature, and the corneal moisturizing and light shielding sheet has a concave surface and a convex surface when the outer ring sheet, the blocking sheet and the inner ring sheet are connected.

[0006] Further, the inner ring piece comprises at least two inner ring sub-pieces which are nested with each other, and the radial thickness of each inner ring sub-piece is the same, which makes the coverage diameter increment of each circle of inner ring sub-pieces from inside to outside the same; during use, the structure of the corneal moisturizing and light shielding piece is partially disassembled according to the area of the required light shielding position of the cornea of the patient, and the specific disassembled part is the outer ring piece and the inner ring sub-piece; the inner ring sub-piece also has an inner ring outer wall and an inner ring inner wall, the inner ring outer wall of the inner ring sub-piece abuts against the inner ring inner wall of the outer ring piece or the inner ring inner wall of the adjacent inner ring sub-piece, and the inner ring inner wall of the inner ring sub-piece abuts against the blocking outer wall of the blocking piece or the inner ring outer wall of the adjacent inner ring sub-piece.

[0007] Further, the material of the corneal moisturizing and light shielding piece is opaque moisturizing gel.

[0008] Further, the outer diameters of adjacent inner ring sub-pieces are different, and the outer diameter of an inner ring sub-piece on the inner side is the same as the inner diameter of an adjacent inner ring sub-piece on the outer side.

[0009] Further, the blocking outer wall and the inner ring outer wall of the inner ring sub-piece are provided with a lifting corner, the outer ring inner wall and the inner ring inner wall of the inner ring sub-piece are both provided with a groove, the number of the lifting corners is the same as the number of the grooves, and the lifting corners and the grooves correspond to each other one by one.

[0010] Further, when the outer ring piece, the blocking piece and the inner ring piece are connected, the outer ring inner wall, the inner ring inner wall, the inner ring outer wall and the blocking outer wall are all cylindrical and the central axes thereof coincide with each other.

[0011] Further, when the outer ring piece, the blocking piece and the inner ring piece are connected, the outer ring inner wall, the inner ring inner wall, the inner ring outer wall and the blocking outer wall are all cylindrical and the central axes thereof do not coincide with each other.

[0012] Further, the inner ring outer wall of the inner ring sub-piece and the blocking outer wall of the blocking piece both comprise a convex part, and the lifting corner is arranged on the convex part; the inner ring inner wall of the inner ring sub-piece and the outer ring inner wall of the outer ring piece both comprise a concave part, and the groove is arranged on the concave part, and each convex part abuts against one concave part.

[0013] Further, each inner ring sub-piece has at least one concave part and at least one convex part, the number of the concave parts on the outer ring inner wall is the same as the number of the convex parts on the inner ring outer wall, and the number of the convex parts on the blocking outer wall is the same as the number of the concave parts on the inner ring inner wall.

[0014] Further, the outer ring inner wall of the outer ring piece and the inner ring outer wall of the inner ring piece are connected under the action of surface tension, and the blocking outer wall of the blocking piece and the inner ring inner wall of the inner ring piece are connected under the action of surface tension.

[0015] Further, the outer ring piece, the blocking piece and the inner ring piece are integrally connected, the outer ring piece and the inner ring piece are provided with a mark line, and the inner ring piece and the blocking piece are provided with a mark line. The mark line is provided with a plurality of circles from the blocking piece to the outer ring piece, and the diameter difference of adjacent mark lines from inside to outside is the same, which enables the user to accurately cut the corneal moisturizing and shading piece according to the actual area of the shading and moisturizing area required by the patient's eye, and the cut corneal moisturizing and shading piece is more suitable for the patient's cornea, which is beneficial to optimize the patient experience.

[0016] The beneficial effects of the utility model are as follows:

[0017] By setting the corneal moisturizing and shading piece into a combination of outer ring piece, inner ring piece and blocking piece, and the outer diameter increment of each inner ring piece is the same, the user can cut or split the corneal moisturizing and shading piece according to the different actual signs of the patient during eye treatment and the difference of the operation area, so that the moisturizing and shading piece can be trimmed into the actual required shape when the cornea is shielded before operation, which is also beneficial to provide size and positioning reference during operation, and is beneficial to assist the user to more accurately and conveniently complete the eye treatment operation, and has excellent practical effect. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor. Among them:

[0019] Figure 1 It is a whole structure schematic view of the utility model embodiment 1;

[0020] Figure 2 It is a whole structure schematic view of the utility model embodiment 1;

[0021] Figure 3 It is an explosion structure schematic view of the utility model embodiment 1;

[0022] Figure 4 It is a whole structure schematic view of the utility model embodiment 2;

[0023] Figure 5 It is a whole structure schematic view of the utility model embodiment 2;

[0024] Figure 6 It is an explosion structure schematic view of the utility model embodiment 2;

[0025] In the diagram, 1 is the outer ring piece; 11 is the inner wall of the outer ring; 2 is the inner ring piece; 20 is the inner ring segment; 21 is the outer wall of the inner ring; 22 is the inner wall of the inner ring; 3 is the sealing piece; 31 is the outer wall of the sealing piece; 4 is the convex surface; 5 is the concave surface; 6 is the corner; 7 is the groove; 8 is the convex part; and 9 is the concave part. Detailed Implementation

[0026] The technical solutions of this utility model are clearly and completely described below through specific embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] Example 1

[0028] A corneal moisturizing and light-blocking lens suitable for use in ophthalmic surgery, such as Figures 1-3 As shown, it includes: an outer ring plate 1, which includes an outer ring inner wall 11; a sealing plate 3, which includes a sealing outer wall 31, the thickness of the sealing plate 3 being the same as the thickness of the outer ring plate 1; an inner ring plate 2, which includes an inner ring outer wall 21 and an inner ring inner wall 22, the inner ring inner wall 22 of the inner ring plate 2 being connected to the sealing outer wall 31 of the sealing plate 3, the inner ring outer wall 21 of the inner ring plate 2 being connected to the outer ring inner wall 11 of the outer ring plate 1, the thickness of the inner ring plate 2 being the same as the thickness of the outer ring plate 1; the outer ring plate 1, the sealing plate 3, and the inner ring plate 2 having the same curvature, and when the outer ring plate 1, the sealing plate 3, and the inner ring plate 2 are connected, the corneal moisturizing and light-blocking sheet has a concave surface 5 and a convex surface 4.

[0029] A more preferred embodiment is, for example, Figures 1-3As shown, the inner ring piece 2 comprises at least two mutually nested inner ring segments 20, and the radial thickness of each inner ring segment 20 is the same, which makes the coverage diameter increment of each circle of inner ring segments 20 from inside to outside the same; in use, the structure of the corneal moisturizing and light shielding piece is partially disassembled according to the area of the required light shielding position of the cornea of the patient, and the specific disassembled parts are the outer ring piece 1 and the inner ring segment 20; the maximum coverage area of the corneal moisturizing and light shielding piece is the area of the concave surface 5, and the minimum coverage area of the corneal moisturizing and light shielding piece is the area of the region occupied by the blocking piece 3 on the concave surface 5; by adjusting the number of inner ring segments 20, the coverage area of the corneal moisturizing and light shielding piece can be uniformly and accurately controlled; the inner ring segment 20 also has an inner ring outer wall 21 and an inner ring inner wall 22, the inner ring outer wall 21 of the inner ring segment 20 abuts against the inner ring inner wall 11 of the outer ring piece 1 or the inner ring inner wall 22 of the adjacent inner ring segment 20, and the inner ring inner wall 22 of the inner ring segment 20 abuts against the blocking outer wall 31 of the blocking piece 3 or the inner ring outer wall 21 of the adjacent inner ring segment 20. The material of the corneal moisturizing and light shielding piece is opaque moisturizing gel, so as to block the light from passing through the cornea of the patient, while keeping the surface moist and supplementing water to the cornea of the patient.

[0030] More preferably, as shown in Figures 1-3 The outer diameter of adjacent inner ring segments 20 is different, and the outer diameter of the inner ring segment 20 on the inner side is the same as the inner diameter of the adjacent inner ring segment 20 on the outer side, so as to facilitate the mutual engagement of adjacent inner ring segments 20. The blocking outer wall 31 and the inner ring outer wall 21 of the inner ring segment 20 are provided with a reveal angle 6, and the outer ring inner wall 11 and the inner ring inner wall 22 of the inner ring segment 20 are provided with a groove 7, the number of the reveal angle 6 is the same as the number of the groove 7, and the reveal angle 6 corresponds to the groove 7 one by one.

[0031] More preferably, as shown in Figures 1-3 When the outer ring piece 1, the blocking piece 3 and the inner ring piece 2 are connected, the outer ring inner wall 11, the inner ring inner wall 22, the inner ring outer wall 21 and the blocking outer wall 31 are all cylindrical and the central axes thereof coincide with each other. Alternatively, when the outer ring piece 1, the blocking piece 3 and the inner ring piece 2 are connected, the outer ring inner wall 11, the inner ring inner wall 22, the inner ring outer wall 21 and the blocking outer wall 31 are all cylindrical and the central axes thereof do not coincide with each other, which is beneficial to reducing the contact area of the engagement position with the disassembling instrument when the instrument is disassembled, thereby reducing the risk of disassembling the wrong inner ring piece 2 or disassembling too many inner ring pieces 2.

[0032] Example 2

[0033] Unlike example 1, as shown in Figures 4-6As shown, the inner ring outer wall 21 of the inner ring piece 20 and the blocking outer wall 31 of the blocking piece 3 both comprise convex portions 8, and the revealing angle 6 is arranged on the convex portion 8; the inner ring inner wall 22 of the inner ring piece 20 and the outer ring inner wall 11 of the outer ring piece 1 both comprise concave portions 9, and the concave groove 7 is arranged on the concave portion 9, and each convex portion 8 is in abutment with one concave portion 9. The arrangement of the convex portion 8 is conducive to the moisturizing and shading piece having a larger fitting area when being fitted to the cornea of the patient, so that the surface tension distribution obtained by the contact is more uniform, which is conducive to improving the adhesion of the moisturizing and shading piece. The arrangement of the concave portion 9 is adapted to the convex portion 8, and can increase the circumferences of the outer ring inner wall 11, the inner ring outer wall 21, the inner ring inner wall 22 and the blocking outer wall 31, thereby increasing the surface tension for maintaining the connection relationship between adjacent ring pieces, so that the moisturizing and shading piece has higher structural stability.

[0034] More preferably, as shown in FIG. 1, each inner ring piece 20 has at least one concave portion 9 and at least one convex portion 8, the number of concave portions 9 on the outer ring inner wall 11 is the same as the number of convex portions 8 on the inner ring outer wall 21, and the number of convex portions 8 on the blocking outer wall 31 is the same as the number of concave portions 9 on the inner ring inner wall 22. Figures 4-6

[0035] More preferably, as shown in FIG. 1, each inner ring piece 20 has at least one concave portion 9 and at least one convex portion 8, the number of concave portions 9 on the outer ring inner wall 11 is the same as the number of convex portions 8 on the inner ring outer wall 21, and the number of convex portions 8 on the blocking outer wall 31 is the same as the number of concave portions 9 on the inner ring inner wall 22. Figures 4-6

[0036] Example 3

[0037] Unlike the above examples, the outer ring piece 1, the blocking piece 3 and the inner ring piece 2 are integrally connected, and the outer ring piece 1 and the inner ring piece 2 are provided with a mark line, and the inner ring piece 2 and the blocking piece 3 are provided with a mark line. The mark line is provided with a plurality of circles from the blocking piece 3 to the outer ring piece 1, and the diameter difference of adjacent mark lines from inside to outside is the same, which enables the user to accurately cut the corneal moisturizing and shading piece according to the actual area of the light-shading and moisturizing area required by the patient's eye, so that the cut corneal moisturizing and shading piece is more suitable for the patient's cornea, which is conducive to optimizing the patient experience.​​

Claims

1. A contact lens for use in ophthalmic surgery, comprising a hydrophilic, light- shielding sheet, wherein The application relates to a contact lens, which comprises: an outer ring piece comprising an outer ring inner wall; a blocking piece comprising a blocking outer wall, the thickness of the blocking piece being the same as that of the outer ring piece; an inner ring piece comprising an inner ring outer wall and an inner ring inner wall, the inner ring inner wall of the inner ring piece being connected with the blocking outer wall of the blocking piece, the inner ring outer wall of the inner ring piece being connected with the outer ring inner wall of the outer ring piece, and the thickness of the inner ring piece being the same as that of the outer ring piece; the outer ring piece, the blocking piece and the inner ring piece have the same curvature, and the contact lens has a concave surface and a convex surface when the outer ring piece, the blocking piece and the inner ring piece are connected.

2. The corneal hydrating and light shielding sheet for use in ophthalmic surgery according to claim 1, wherein The inner ring piece comprises at least two inner ring sub-pieces which are sleeved with each other, and the radial thickness of each inner ring sub-piece is the same; the inner ring sub-piece also comprises an inner ring outer wall and an inner ring inner wall, the inner ring outer wall of the inner ring sub-piece abuts against the outer ring inner wall of the outer ring piece or the inner ring inner wall of an adjacent inner ring sub-piece, and the inner ring inner wall of the inner ring sub-piece abuts against the blocking outer wall of the blocking piece or the inner ring outer wall of an adjacent inner ring sub-piece.

3. The corneal hydrating and light shielding sheet for use in ophthalmic surgery according to claim 2, wherein The outer diameters of adjacent inner ring sub-pieces are different, and the outer diameter of an inner ring sub-piece located at the inner side is the same as the inner diameter of an adjacent inner ring sub-piece located at the outer side.

4. The corneal hydrating and light shielding sheet for use in ophthalmic surgery according to claim 2, wherein The blocking outer wall and the inner ring outer wall of the inner ring sub-piece are provided with a plurality of bevels, and the outer ring inner wall and the inner ring inner wall of the inner ring sub-piece are provided with a plurality of grooves, the number of the bevels is the same as that of the grooves, and the bevels and the grooves are in one-to-one correspondence.

5. The corneal hydrating and light shielding sheet for use in ophthalmic surgery according to claim 4, wherein When the outer ring piece, the blocking piece and the inner ring piece are connected, the outer ring inner wall, the inner ring inner wall, the inner ring outer wall and the blocking outer wall are all in the shape of a cylinder and have coaxial central axes.

6. The corneal hydrating and light shielding sheet for use in ophthalmic surgery according to claim 4, wherein When the outer ring piece, the blocking piece and the inner ring piece are connected, the outer ring inner wall, the inner ring inner wall, the inner ring outer wall and the blocking outer wall are all in the shape of a cylinder and have non-coaxial central axes.

7. The corneal hydrating and light shielding sheet for use in ophthalmic surgery according to claim 4, wherein The inner ring outer wall of the inner ring sub-piece and the blocking outer wall of the blocking piece both comprise convex portions, and the bevels are arranged on the convex portions; the inner ring inner wall of the inner ring sub-piece and the outer ring inner wall of the outer ring piece both comprise concave portions, and the grooves are arranged on the concave portions, and each convex portion abuts against a concave portion.

8. The corneal hydrating and light shielding sheet for use in ophthalmic surgery according to claim 7, wherein Each inner ring sub-piece has at least one concave portion and at least one convex portion, the number of the concave portions on the outer ring inner wall is the same as that of the convex portions on the inner ring outer wall, and the number of the convex portions on the blocking outer wall is the same as that of the concave portions on the inner ring inner wall.

9. The corneal hydrating and light shielding sheet for use in ophthalmic surgery according to claim 1, wherein The outer ring inner wall of the outer ring piece and the inner ring outer wall of the inner ring piece are connected under the action of surface tension, and the blocking outer wall of the blocking piece and the inner ring inner wall of the inner ring piece are connected under the action of surface tension.

10. The corneal hydrating and light shielding sheet for use in ophthalmic surgery according to claim 1, wherein The outer ring piece, the blocking piece and the inner ring piece are integrally connected, a mark line is arranged between the outer ring piece and the inner ring piece, and a mark line is arranged between the inner ring piece and the blocking piece.

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