Clamping type intraocular lens with replaceable optical area capsular membrane and use method of clamping type intraocular lens

Abstract

The invention discloses a replaceable optical area capsular membrane clamping type artificial lens which comprises an artificial lens optical part and an annular clamping part, a first clamping part used for being fixed to a capsular membrane is arranged on the periphery of the annular clamping part, and a second clamping part used for fixing the artificial lens optical part is arranged on the inner periphery of the annular clamping part. And the intraocular lens optical part is detachably connected with the second clamping part. The invention further discloses a using method of the replaceable artificial lens. The using method comprises the following steps that (1) continuous annular capsulorhexis and cataract removal of the anterior capsular membrane of the lens and annular capsulorhexis or partial resection of the posterior capsular membrane are completed; (2) implanting the annular clamping part into the eye through an implanting device, and clamping the edges of the front and rear capsule membranes by the first clamping part; and (3) implanting the optical part of the intraocular lens into the annular clamping part through an implanting device, so that the peripheral edge of the optical part of the intraocular lens is clamped and fixed with the second clamping part.

Description

Technical Field

[0001] The present invention relates to the technical field of ophthalmic appliances, and in particular to a replaceable optical zone capsule clamping type intraocular lens and a use method thereof. Background Art

[0002] Currently, there are two major problems faced after congenital cataract surgery: one is the turbidity of the visual axis area, and the other is the refractive error after surgery. If the child with congenital cataract is less than 1 year old, the surgical method is usually lens removal, combined with initial posterior capsulotomy and anterior vitrectomy, leaving the anterior capsule and posterior capsule edge (for later IOL implantation). For older patients, cataract extraction combined with intraocular lens (IOL) implantation can be performed.

[0003] In conventional cataract extraction combined with IOL implantation, the IOL is usually placed in the capsular bag of the lens. In a few cases, it is clamped in the ciliary sulcus by the lens haptic or fixed to the sclera by sutures. Although the capsular bag is an ideal location for IOL implantation, postoperative capsule opacification and organization are common postoperative complications of capsular bag implantation, especially in patients with congenital cataracts, resulting in decreased visual acuity and visual quality after surgery.

[0004] As children age after congenital cataract surgery, their corneal curvature and eye axis continue to change, and the development patterns vary greatly from person to person, leading to larger refractive errors after surgery.

[0005] To this end, there is currently a Chinese patent authorization announcement number CN221845103U that discloses an intraocular lens for anterior capsule optical incarceration, the intraocular lens includes an intraocular lens optical part, a first intraocular lens haptic, a second intraocular lens haptic, a first elliptical shielding piece, and a second elliptical shielding piece. Although this patent improves the stability and centering of the optical part position after the intraocular lens is implanted in the ciliary sulcus in the event of complications during phacoemulsification of cataracts, it can also reduce the traction of vitreous displacement on retinal tissue, and improve the patient's postoperative visual quality while ensuring the safety of the operation. However, the intraocular lens optical part of this patent is integrally formed with other parts and cannot be replaced. Summary of the invention

[0006] The object of the present invention is to provide a replaceable optical zone capsule-clamped intraocular lens and a method of using the same in view of the above-mentioned deficiencies and defects of the prior art. The replaceable optical zone capsule-clamped intraocular lens avoids the problem of post-cataract, and the optical part of the intraocular lens can be replaced to solve the above-mentioned problems.

[0007] The technical problem solved by the present invention can be achieved by adopting the following technical solutions:

[0008] A replaceable optical zone capsule-clamping intraocular lens, comprising an intraocular lens optical part and an annular clamping part. A first clamping part for fixing on the capsule is arranged on the outer periphery of the annular clamping part, and a second clamping part for fixing the intraocular lens optical part is arranged on the inner periphery of the annular clamping part. The intraocular lens optical part is detachably connected to the second clamping part.

[0009] In a preferred embodiment of the present invention, the first clamping part and the second clamping part are respectively a first clamping groove structure and a second clamping groove structure.

[0010] In a preferred embodiment of the present invention, the notch of the first clamping groove structure is set as a reduced opening structure.

[0011] In a preferred embodiment of the present invention, the notch of the second clamping groove structure is set as a flared opening structure.

[0012] In a preferred embodiment of the present invention, the material of the annular clamping part includes one of silicone, acrylate, hydrogel, hydrophobic acrylate, and copolymer.

[0013] A method for using the replaceable optical zone capsule-clamping intraocular lens according to any one of the above technical solutions, comprising the following steps:

[0014] (1) Perform continuous circular capsulorhexis of the anterior capsule of the lens, cataract extraction, and circular capsulorhexis or partial resection of the posterior capsule;

[0015] (2) Implant the annular clamping part into the eye through an injector, and the first clamping part clamps the edges of the anterior and posterior capsules;

[0016] (3) Implant the intraocular lens optical part into the annular clamping part through an injector, so that the outer peripheral edge of the intraocular lens optical part is clamped and fixed by the second clamping part.

[0017] In a preferred embodiment of the present invention, it further includes a step of replacing the intraocular lens. Take out the intraocular lens optical part, and use an injector to implant a new intraocular lens optical part into the annular clamping part, so that the outer peripheral edge of the new intraocular lens optical part is clamped and fixed by the second clamping part.

[0018] In a preferred embodiment of the present invention, when taking out the intraocular lens optical part, cut open the intraocular lens optical part with scissors and then take it out with a clamp.

[0019] Due to the adoption of the above technical solution, the intraocular lens optical part of the replaceable intraocular lens of the present invention can be detachably fixed on the annular clamping part, and the entire outer peripheral edge of the intraocular lens optical part is fixed, preventing displacement and avoiding the problem of posterior capsular opacification. Moreover, the intraocular lens optical part can be replaced. Description of the Drawings

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 The present invention is a schematic diagram of a replaceable optical zone capsule clamped intraocular lens in use according to an embodiment of the present invention.

[0022] Figure 2 yes Figure 1 Half-section diagram of .

[0023] Figure 3 yes Figure 2 Schematic diagram after omitting the optic of the intraocular lens.

[0024] Figure 4 This is one of the state diagrams of a method for using a replaceable optical zone capsule clamped intraocular lens according to an embodiment of the present invention.

[0025] Figure 5 This is the second state diagram of a method for using a replaceable optical zone capsule clamped intraocular lens according to an embodiment of the present invention.

[0026] Figure 6 This is the third state diagram of a method for using a replaceable optical zone capsule clamped intraocular lens according to an embodiment of the present invention.

[0027] Reference numerals: intraocular lens optical part 100 ; annular clamping part 200 ; first clamping part 210 ; contraction structure 211 ; second clamping part 220 ; expansion structure 221 ; capsule 300 . DETAILED DESCRIPTION

[0028] The preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0029] The terms used in the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The singular forms "a", "the" and "the" used in the present invention and the appended claims are also intended to include plural forms unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0030] It should be understood that although the terms "first", "second", "third", etc. may be used to describe various information in the present invention, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0031] See also Figures 1 to 3 The illustrated replaceable optical zone capsule-clamped intraocular lens comprises an intraocular lens optical part 100 and an annular clamping part 200, wherein the outer periphery of the annular clamping part 200 is provided with a first clamping part 210 for fixing on the capsule, and the inner periphery of the annular clamping part 200 is provided with a second clamping part 220 for fixing the intraocular lens optical part 100, and the intraocular lens optical part 100 and the second clamping part 200 are detachably connected.

[0032] In this embodiment, the material of the annular clamping part includes one of silicone, acrylate, hydrogel, hydrophobic acrylate, and copolymer, and the first clamping part 210 and the second clamping part 220 are respectively the first slot structure and the second slot structure. The notch of the first slot structure is set as a shrinking structure 211, so the first slot structure can be well fixed on the capsule 300, and the notch of the second slot structure is set as an expanding structure 221, which is convenient for the artificial lens optical part 100 to enter and take out. When the artificial lens optical part 100 enters the second slot structure, the outer end of the artificial lens optical part 100 will abut against the middle of the inner surface of the second slot structure, will not shift, and can be accurately positioned.

[0033] Combination Figures 4 to 6 As shown, a method for using a replaceable optical zone capsule clamped intraocular lens comprises the following steps:

[0034] (1) Complete anterior lens capsule continuous circular capsulorhexis, cataract extraction, and posterior lens capsule circular capsulorhexis or partial resection (such as Figure 4 shown);

[0035] (2) The annular clamping portion 200 is implanted into the eye by an implanter, and the first clamping portion 210 clamps the edges of the anterior and posterior capsules 300 (such as Figure 5 shown);

[0036] (3) The intraocular lens optical part 100 is implanted into the annular clamping part 200 by using an implanter, so that the outer peripheral edge of the intraocular lens optical part 100 is clamped and fixed with the second clamping part 220 (such as Figure 6 shown).

[0037] The method also includes a step of replacing the intraocular lens, taking out the intraocular lens optical part 100 and implanting a new intraocular lens optical part 100 into the annular clamping part 200 using an implanter, so that the outer peripheral edge of the new intraocular lens optical part 100 is clamped and fixed by the second clamping part 220 .

[0038] The above-mentioned implanter is a commonly used implanter in the art and will not be described in detail here.

[0039] When removing the optical part of the intraocular lens, use scissors to cut the optical part of the intraocular lens and then remove it with clips.

[0040] The artificial lens optical part of the replaceable artificial lens of the present invention can be detachably fixed on the annular clamping part, and the peripheral edges of the artificial lens optical part are all fixed to prevent displacement, thus avoiding the problem of secondary cataract, and the artificial lens optical part can be replaced.

[0041] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0042] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0043] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0044] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A replaceable optical zone capsule clamped intraocular lens, characterized in that: It includes an artificial lens optical part and an annular clamping part. The outer periphery of the annular clamping part is provided with a first clamping part for fixing on the capsule membrane, and the inner periphery of the annular clamping part is provided with a second clamping part for fixing the artificial lens optical part. The artificial lens optical part and the second clamping part are detachably connected.

2. The replaceable optical zone capsule clamped intraocular lens according to claim 1, characterized in that: The first clamping portion and the second clamping portion are respectively a first clamping slot structure and a second clamping slot structure.

3. The replaceable optical zone capsule clamped intraocular lens according to claim 2, characterized in that: The notch of the first slot structure is configured as a shrinkage structure.

4. The replaceable optical zone capsule clamped intraocular lens according to claim 2, characterized in that: The notch of the second slot structure is configured as a flared structure.

5. The replaceable optical zone capsule clamped intraocular lens according to claim 1, characterized in that: The material of the annular clamping part includes one of silicone, acrylate, hydrogel, hydrophobic acrylate and copolymer.

6. A method for using the replaceable optical zone capsule clamped intraocular lens according to any one of claims 1 to 6, characterized in that: The steps include: (1) Complete anterior lens capsule continuous circular capsulorhexis, cataract extraction, and posterior lens capsule circular capsulorhexis or partial resection; (2) implanting the annular clamping part into the eye through the implanter, wherein the first clamping part clamps the anterior and posterior capsule edges; (3) Implanting the optical part of the artificial lens into the annular clamping part by using an implanter, so that the outer peripheral edge of the optical part of the artificial lens is clamped and fixed by the second clamping part.

7. The method for using the replaceable optical zone capsule clamped intraocular lens according to claim 6, characterized in that: The method also includes a step of replacing the artificial lens, taking out the optical part of the artificial lens, and implanting a new optical part of the artificial lens into the annular clamping part using an implanter, so that the outer peripheral edge of the new optical part of the artificial lens is clamped and fixed by the second clamping part.

8. The method for using a replaceable intraocular lens according to claim 7, characterized in that: When removing the optical part of the intraocular lens, use scissors to cut the optical part of the intraocular lens and then remove it with clips.

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