阅读说明：本技术 一种眼睛康复植入用人工晶体 (Intraocular lens for eye rehabilitation implantation ) 是由 张骥 于 2019-12-13 设计创作，主要内容包括：本发明公开了一种眼睛康复植入用人工晶体,包括光学元件和外部支撑元件,所述光学元件包括中间的透光镜片以及透光镜片外周延伸的支撑环圈,支撑环圈的外侧壁上延伸有至少两个支撑片,所述外部支撑元件包括支撑圆环,支撑圆环的圆周内壁延伸有与支撑片数量对应的支撑座,支撑座的前端面开设有用于容置支撑片的容置槽,支撑圆环的圆周外壁延伸有至少两个支撑袢。本发明结构设计合理,利用呈射线状分布的弹性隔离支撑条,能够彻底防止前囊膜、后囊膜与光学元件的粘连；手术操作方便,有效降低使用成本。(The invention discloses an intraocular lens for eye rehabilitation implantation, which comprises an optical element and an external supporting element, wherein the optical element comprises a transparent lens in the middle and a supporting ring extending from the periphery of the transparent lens, at least two supporting sheets extend from the outer side wall of the supporting ring, the external supporting element comprises a supporting ring, supporting seats corresponding to the supporting sheets in number extend from the inner wall of the circumference of the supporting ring, a containing groove for containing the supporting sheets is formed in the front end surface of the supporting seat, and at least two supporting tabs extend from the outer wall of the circumference of the supporting ring. The invention has reasonable structural design, and can thoroughly prevent the adhesion of the front capsule membrane and the rear capsule membrane with the optical element by utilizing the elastic isolation supporting bars which are distributed in a ray shape; the operation is convenient, and the use cost is effectively reduced.)

1. An intraocular lens for eye rehabilitation implantation, characterized in that: including optical element (1) and outside support element (2), optical element (1) support ring (11) including middle printing opacity lens (12) and printing opacity lens (12) periphery extension, and it has two at least backing sheets (13) to extend on the lateral wall of support ring (11), outside support element (2) are including supporting ring (21), and the circumference inner wall of supporting ring (21) extends and has supporting seat (26) that correspond with backing sheet (13) quantity, and storage tank (17) that are used for holding backing sheet (13) are offered to the preceding terminal surface of supporting seat (26), and the circumference outer wall of supporting ring (21) extends has two at least support tong "pan (22).

2. The intraocular lens for ophthalmic rehabilitation implantation of claim 1, wherein: the inner side end of the containing groove (27) extends into the circumferential inner wall of the supporting ring (21).

3. The intraocular lens for ophthalmic rehabilitation implantation of claim 1, wherein: support tong "pan" (22) and adopt arc elastic support strip, the link of arc elastic support strip and the circumference outer wall fixed connection who supports ring (21), the free end of arc elastic support strip extends has and supports contact (23), and the width of arc elastic support strip is diminished by link to free end gradually.

4. An intraocular lens for ocular rehabilitation implantation as defined in claim 3, wherein: the side wall of the supporting ring (21) is further provided with a side wall through hole (28) for accommodating the arc-shaped elastic supporting strip, and the free end of the arc-shaped elastic supporting strip is bonded in the side wall through hole (28) through water-soluble glue.

5. The intraocular lens for ophthalmic rehabilitation implantation of claim 1, wherein: the front end face and the rear end face of the supporting ring (21) are respectively provided with a plurality of elastic isolation supporting strips (24), the connecting ends of the elastic isolation supporting strips (24) are integrally connected to the inner wall of the circumference of the supporting ring (21), and the elastic isolation supporting strips (24) are in fit contact with the front end face or the rear end face of the supporting ring (11) of the optical element (1) through the cambered surfaces (25).

6. The intraocular lens for ophthalmic rehabilitation implantation of claim 1, wherein: the number of the elastic isolation support bars (24) is 8, and the free ends of the elastic isolation support bars (24) face the central axis of the light-transmitting lens (12).

7. The intraocular lens for ophthalmic rehabilitation implantation of claim 1, wherein: the optical element (1) and the external supporting element (2) are respectively composed of the following raw materials in parts by weight: 40-45 parts of acrylic resin, 30-35 parts of silicon resin, 13-17 parts of PMMA, 1-3 parts of compatilizer and 1.5-1.8 parts of blue light absorber.

8. The intraocular lens for ophthalmic rehabilitation implantation of claim 7, wherein: the optical element (1) and the external supporting element (2) are composed of the following raw materials in parts by weight: 43 parts of acrylic resin, 32 parts of silicone resin, 15 parts of PMMA, 2 parts of compatilizer and 1.7 parts of blue light absorber.

9. The intraocular lens for ophthalmic rehabilitation implantation of claim 1, wherein: the height of the external support element (2) is greater than the maximum thickness of the optical element (1).

Technical Field

The invention relates to the technical field of medical instruments, in particular to an intraocular lens for eye rehabilitation implantation.

Background

Intraocular lenses, also known as intraocular lenses (IOLs), are precision optical components that are surgically implanted into the eye to replace the removed self-opacified lens.

The main components of human crystals are protein and water, which can cause fogging or clouding due to aging, and the fogging crystals can block light and images from being projected onto the retina. The phenomenon of crystal atomization can be caused by eye damage, certain diseases and even certain drug treatments; according to statistics, more than 90% of cataract cases are also caused by the essential aging process of human beings, namely, the eye crystals become turbid and then the vision is affected, the mechanism is not clear, and the drug treatment has not been developed in a breakthrough manner so far. The only truly effective treatment for cataracts is surgical treatment, which involves removing the lens that has become opaque and replacing it with an artificial lens, known as an intraocular lens. Intraocular lens implantation is the most effective means of treating cataracts, with thousands of cataract patients achieving good vision through this safe and effective surgical procedure.

The conventional artificial lens usually consists of a circular optical part and a peripheral supporting loop, the diameter of the optical part is generally about 5.5-6 mm, and the supporting loop is used for fixing the artificial lens and can be two C-shaped or J-shaped linear supporting loops. After the intraocular lens is implanted into a human eye, common complications are postoperative Posterior Capsular Opacification (PCO), Anterior Capsular Opacification (ACO) and anterior capsular contracture, and the essential reasons are all caused by proliferation of Lens Epithelial Cells (LECs) remaining in cataract surgery. The Chinese utility model patent (No. CN 209301398U, No. 2019.08.27) discloses an artificial lens, which is provided with a capsule adhesion prevention structure, the capsule adhesion prevention structure and a lens body are of an integrally formed structure, an optical area is suspended in a capsule bag, an artificial lens system can be integrally implanted during operation, the complex process that the capsule adhesion prevention structure is implanted in place and then the artificial lens is implanted in the prior art is avoided, the operation process is simplified, and meanwhile, the risk that the capsule adhesion prevention structure is lack of support in eyes to cause eccentric displacement is avoided; the loop for fixing the artificial lens in the eye can still be compressed to conform to the sizes of pupils with different sizes, and the universality is strong; the edge of the anti-capsular bag adhesion structure is a sharp angle edge, and is provided with a penetrating structure for free circulation of room water, so that postoperative complications such as PCO (prestressed concrete injection) and ACO (anaerobic-anoxic-oxic) can be effectively prevented, and the use is safe and reliable.

In the artificial lens, the capsule adhesion preventing structure is in a thin-wall annular shape, so that although the effect of isolating and supporting the circumferential region of the optical zone can be achieved, the capsule adhesion risk still exists on the front end face and the rear end face of the central axis of the optical zone; in addition, the capsular sac adhesion prevention structure and the optical area adopt an integrated structure, when the lens is implanted into the eye, if the lens is twisted, the original lens needs to be taken out again, and then a new artificial lens is implanted, so that the operation difficulty is high, and the operation cost is high.

Disclosure of Invention

The present invention is directed to an intraocular lens for eye rehabilitation implantation to solve the problems set forth in the background art described above.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides an intraocular lens is used in recovered implantation of eye, includes optical element and outside support element, optical element includes the support ring that middle printing opacity lens and printing opacity lens periphery extend, and it has two at least backing sheets to extend on the lateral wall of support ring, outside support element is including supporting the ring, and the circumference inner wall that supports the ring extends and has the supporting seat that corresponds with backing sheet quantity, and the storage tank that is used for holding the backing sheet is offered to the preceding terminal surface of supporting seat, and the circumference outer wall that supports the ring extends has two at least support tabs.

Preferably, the inner side end of the accommodating groove extends into the circumferential inner wall of the supporting ring.

Preferably, the support tong "pan" adopts arc elastic support strip, and arc elastic support strip's link and the circumference outer wall fixed connection who supports the ring, the free end of arc elastic support strip extend has conflict piece, and the width of arc elastic support strip is diminished by link to free end gradually.

Preferably, the lateral wall of the supporting ring is further provided with a lateral wall through hole for accommodating the arc-shaped elastic supporting strip, and the free end of the arc-shaped elastic supporting strip is bonded in the lateral wall through hole through water-soluble glue.

Preferably, a plurality of elastic isolation support bars are uniformly distributed on the front end face and the rear end face of the support ring, the connecting ends of the elastic isolation support bars are integrally connected to the inner wall of the circumference of the support ring, and the elastic isolation support bars are in fit contact with the front end face or the rear end face of the support ring of the optical element by adopting cambered surfaces.

Preferably, the number of the elastic isolation support bars is 8, and the free ends of the elastic isolation support bars face the central axis of the light-transmitting lens.

Preferably, the optical element and the external supporting element are both composed of the following raw materials in parts by weight: 40-45 parts of acrylic resin, 30-35 parts of silicon resin, 13-17 parts of PMMA, 1-3 parts of compatilizer and 1.5-1.8 parts of blue light absorber.

Preferably, the optical element and the external supporting element are composed of the following raw materials in parts by weight: 43 parts of acrylic resin, 32 parts of silicone resin, 15 parts of PMMA, 2 parts of compatilizer and 1.7 parts of blue light absorber.

Preferably, the height of the external support element is greater than the maximum thickness of the optical element.

Compared with the prior art, the invention has the beneficial effects that: the front end face and the rear end face of the supporting ring are respectively provided with a plurality of elastic isolation support bars, the connecting ends of the elastic isolation support bars are integrally connected to the circumferential inner wall of the supporting ring, the elastic isolation support bars are in fit contact with the front end face or the rear end face of the supporting ring of the optical element by adopting cambered surfaces, and the elastic isolation support bars distributed in a radial shape are utilized, so that the adhesion of the front capsular sac and the rear capsular and the optical element can be thoroughly prevented, the isolation effect is more prominent, and the capsular adhesion risk of the front end face and the rear end face of the central axis of the optical element can be effectively avoided; in addition, the elastic isolation support strip can also play a role in stabilizing the optical element, so that the support strip of the optical element is always limited and contained in the containing groove of the support seat; because the optical element is limited and arranged in the accommodating groove at the inner side of the supporting ring through the supporting sheets at the periphery, when the lens is twisted after being implanted into eyes, the optical element can be independently replaced, the operation is convenient, and the use cost is effectively reduced; the free ends of the arc-shaped elastic support bars are connected in the through holes of the side walls through the water-soluble glue, so that the whole occupied space can be reduced before the crystal is implanted, after the crystal is implanted, the water-soluble glue is dissolved, the arc-shaped elastic support bars can be unfolded automatically under the elastic action of the arc-shaped elastic support bars and are abutted against the inner edge of the bag, and a good limiting effect is achieved; and the side wall through hole can communicate the inside and the outside of the supporting ring after being opened, thereby being beneficial to the free flow of aqueous humor and avoiding the occurrence of subsequent complications.

The invention has reasonable structural design, and can thoroughly prevent the adhesion of the front capsule membrane and the rear capsule membrane with the optical element by utilizing the elastic isolation supporting bars which are distributed in a ray shape; the operation is convenient, and the use cost is effectively reduced.

Drawings

FIG. 1 is a schematic view of an intraocular lens for ocular rehabilitation implantation;

FIG. 2 is a schematic structural view of a cross section A-A of an intraocular lens for eye rehabilitation with an elastic isolation support bar hidden by an external support member;

FIG. 3 is a schematic structural view of a cross section B-B of an intraocular lens for eye rehabilitation with an outer supporting member concealing a supporting base;

FIG. 4 is a schematic view of an optical element of an intraocular lens for eye rehabilitation implantation;

FIG. 5 is a schematic view of an external support member for an intraocular lens for eye rehabilitation;

fig. 6 is a schematic structural view of an intraocular lens for eye rehabilitation with 8 elastic isolation support bars.

In the figure: 1-optical element, 11-support ring, 12-light-transmitting lens, 13-support sheet, 2-external support element, 21-support ring, 22-support loop, 23-interference sheet, 24-elastic isolation support strip, 25-cambered surface, 26-support seat, 27-containing groove and 28-side wall through hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 6, example 1: an intraocular lens for eye rehabilitation implantation comprises an optical element 1 and an external support element 2, wherein the optical element 1 comprises a middle light-transmitting lens 12 and a support ring 11 extending from the periphery of the light-transmitting lens 12, at least two support sheets 13 extend from the outer side wall of the support ring 11, the external support element 2 comprises a support ring 21, support seats 26 corresponding to the support sheets 13 in number extend from the inner wall of the circumference of the support ring 21, a containing groove 17 for containing the support sheets 13 is formed in the front end surface of the support seat 26, and at least two support tabs 22 extend from the outer wall of the circumference of the support ring 21; the height of the external support element 2 is greater than the maximum thickness of the optical element 1.

Because the optical element 1 is installed in the containing groove 17 at the inner side of the supporting ring 21 in a limiting way through the supporting sheets 13 at the periphery, when the lens is twisted after being implanted into eyes, the optical element 1 can be independently replaced, the operation is convenient, and the use cost is effectively reduced.

Preferably, the inner end of the receiving groove 27 extends into the inner circumferential wall of the supporting ring 21, so that the optical element 1 is more stably mounted and limited.

Support tong "pan" 22 and adopt the arc elastic support strip, the link of arc elastic support strip and the circumference outer wall fixed connection who supports ring 21, the free end of arc elastic support strip extends has conflict piece 23, and the width of arc elastic support strip is diminished by link to free end gradually.

The side wall of the support ring 21 is further provided with a side wall through hole 28 for accommodating the arc-shaped elastic support strip, and the free end of the arc-shaped elastic support strip is bonded in the side wall through hole 28 through water-soluble glue.

Because the free end of the arc-shaped elastic support strip is connected in the side wall through hole 28 through the water-soluble glue, the whole occupied space can be reduced before the crystal is implanted, after the crystal is implanted, the water-soluble glue is dissolved, the arc-shaped elastic support strip can be unfolded automatically under the elastic action of the arc-shaped elastic support strip and is abutted against the inner edge of the bag, and therefore a good limiting effect is achieved; and the side wall through hole 28 can communicate the inside and the outside of the supporting ring 21 after being opened, which is beneficial to the free flow of aqueous humor and avoids the occurrence of subsequent complications.

The front end face and the rear end face of the supporting ring 21 are respectively provided with a plurality of elastic isolation support bars 24, the connecting ends of the elastic isolation support bars 24 are integrally connected to the inner wall of the circumference of the supporting ring 21, and the elastic isolation support bars 24 are in contact with the front end face or the rear end face of the supporting ring 11 of the optical element 1 by adopting cambered surfaces 25.

The elastic isolation support bars 24 distributed in a ray shape are utilized, the adhesion of the front capsular sac and the rear capsular sac with the optical element 1 can be thoroughly prevented, the isolation effect is more prominent, and the capsular adhesion risk of the front end face and the rear end face of the central axis of the optical element 1 can be effectively avoided.

The elastic isolation support strip 24 can also stabilize the optical element 1, so that the support strip 13 of the optical element 1 is always limited and contained in the containing groove 17 of the support base 26.

Referring to fig. 6, it is preferable that the number of the elastic separation supporting strips 24 is 8, and the free ends of the elastic separation supporting strips 24 face the central axis of the transparent lens 12.

Wherein the optical element 1 and the external supporting element 2 are composed of the following raw materials in parts by weight: 43 parts of acrylic resin, 32 parts of silicone resin, 15 parts of PMMA, 2 parts of compatilizer and 1.7 parts of blue light absorber. The optical element 1 and the external support member 2 are made of acrylic resin, silicone resin, and PMMA, and have good biocompatibility, which refers to a property of living tissue reacting to an inactive material, and generally refers to compatibility between a material and a host. After the biological material is implanted into a human body, the biological material has an influence and effect on a specific biological tissue environment, the biological tissue also has an influence and effect on the biological material, and the circulating effects of the biological tissue and the biological material are continued until the balance is achieved or the implant is removed. The refractive index of the optical element 1 obtained was 1.43 as measured at 25 ℃.