Foldable intraocular lens capable of being suspended

Abstract

The foldable intraocular lens capable of being suspended comprises an optical part and supporting loops, the supporting loops are symmetrically arranged on the two sides of the optical part, the roots of the supporting loops at the connecting positions of the supporting loops and the optical part are expanded in a spherical shape, and the diameter of the roots of the supporting loops is two times of the thickness of the supporting loops. Scales are arranged on the tail portion of the supporting loop, the overall length of the artificial lens is 13.0 mm, and the scale marks on the tail portion of the supporting loop are used for an operation operator to conduct trimming according to the eyeball condition of a patient. The roots of the supporting loops expand spherically, so that the supporting loops are firmly connected with the optical part, and the risk of dislocation of the crystalline lens is reduced.

Description

Technical Field

[0001] The invention relates to the field of artificial lens medical devices, and in particular to a suspendable and foldable artificial lens. Background Art

[0002] At present, the conventional cataract surgery is mainly phacoemulsification combined with posterior chamber intraocular lens implantation, and the best position for intraocular lens implantation is in the capsular bag. However, for some special cases, such as when the intraocular lens cannot be implanted in the capsular bag or ciliary sulcus due to eye trauma, too hard lens nucleus, Marfan syndrome or other factors, the optional surgical methods include anterior chamber intraocular lens implantation and intraocular lens scleral fixation. Although anterior chamber IOL implantation represented by angle-supported and iris-fixed types is simple to operate and has a good short-term prognosis after surgery, it is rarely used clinically due to its long-term effects on the corneal endothelium, trabecular function and iris tissue.

[0003] Sutureless scleral interlaminar IOL fixation usually uses a foldable three-piece IOL, that is, the optical part and the haptic are usually made of different materials, the haptic is usually made of PMMA, and the optical part is usually made of acrylic, and the connection between the haptic and the optical part is achieved by inserting the haptic into the optical part. However, this design has the problem of easy detachment of the haptic from the optical part in clinical applications, causing the lens to dislocate and fall into the vitreous cavity, and the long-term stability of the lens is low, and the operation is difficult.

[0004] In summary, there is an urgent need for a foldable intraocular lens that is suitable for sutureless scleral fixation, has strong stability, and is easy to operate. Summary of the invention

[0005] The purpose of the present invention is to provide a foldable artificial lens which is suitable for sutureless scleral fixation, has strong stability and is easy to operate.

[0006] The technical solution adopted by the present invention is a suspendable foldable artificial lens, comprising an optical part and a support haptic, wherein the support haptics are symmetrically arranged on both sides of the optical part, and the roots of the support haptics at the connection between the support haptics and the optical part are spherically enlarged.

[0007] As a preferred technical solution, the root of the support loop is spherically enlarged, and the diameter is twice the thickness of the support loop.

[0008] As a preferred technical solution, the overall length of the suspendable foldable intraocular lens is 13.0 mm, and the tail of the support loop is provided with a scale, which can be used by the surgeon to trim it according to the patient's eye condition.

[0009] The advantages of the present invention are: 1. The optical part of the suspendable foldable intraocular lens of the present invention is made of acrylic, which is highly transparent and has a refractive index of 1.55. It has good optical and biological properties and is soft. After being folded, it can be unfolded softly and slowly, so that the suspendable foldable intraocular lens can be folded and implanted, that is, it can be implanted with folding forceps or a special intraocular lens injector without expanding the surgical incision.

[0010] 2. The support haptic of the foldable artificial lens of the present invention is spherically enlarged at its root, so that the support haptic is firmly connected to the optical part, reducing the risk of lens dislocation.

[0011] 3. The tail of the support loop of the suspendable foldable intraocular lens of the present invention has a scale, which can be used by the surgeon to trim it according to the actual condition of the patient's eyeball. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Attached Figure 1 It is a plan view schematic diagram of a foldable artificial lens that can be suspended according to the present invention; Attached Figure 2 It is a three-dimensional schematic diagram of a foldable artificial lens of the present invention; Attached Figure 3 It is a partial enlarged schematic diagram of the spherical swelling at the root of the support loop; Attached Figure 4 It is a partial enlarged schematic diagram of the scale at the tail of the support loop; The reference numerals are: 1 optical part, 2 support loop, 21 support loop root, 22 scale line. DETAILED DESCRIPTION

[0013] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms fall within the scope limited by the appended claims of the application equally.

[0014] Example: Figure 1 and Figure 2 As shown, a foldable artificial lens includes an optical part 1 and a support haptic 2. The optical part 1 is made of acrylic material, which has high transparency and good optical properties, and its refractive index is 1.55, ensuring excellent visual effects. The support haptic 2 is made of PMMA material, and is symmetrically placed on both sides of the optical part 1 when the optical part 1 is formed. Figure 3 As shown, the root 21 of the support haptic inserted into the optical part 1 is spherically enlarged, with a diameter twice the thickness of the cross section of the support haptic 2, and is fixedly connected to the optical part 1. This spherical connection design enhances the connection strength between the support haptic 2 and the optical part 1, effectively reducing the risk of lens dislocation. Figure 4 As shown, the tail of the support loop 2 is provided with a scale line 22. The overall length of the intraocular lens is 13.0 mm. The scale line of the tail of the support loop is set. During the operation, the operator can use scissors to trim along the scale according to the specific conditions of the patient's eyeball to ensure that the size of the intraocular lens is suitable for the patient's intraocular structure.

[0015] The spherical connection structure between the optical part and the root of the support loop of the artificial lens enhances the connection strength between the support loop 2 and the optical part 1, effectively reducing the risk of lens dislocation. The scale design of the tail of the support loop can more accurately trim the length and position during surgery, improving the accuracy of the surgery.

[0016] The above specific implementation modes are used to explain the present invention rather than to limit the present invention. Any modification and change made to the present invention within the spirit of the present invention and the protection scope of the claims shall fall within the protection scope of the present invention.

Claims

1. A foldable artificial lens, comprising an optical part and a support haptic, wherein the support haptics are symmetrically arranged on both sides of the optical part, characterized in that: The root of the support loop at the connection between the support loop and the optical part is spherically enlarged, and a scale line is arranged at the tail of the support loop.

2. The foldable artificial lens according to claim 1, characterized in that: The diameter of the spherical swelling at the root of the support loop is twice the thickness of the support loop.

3. The foldable artificial lens according to claim 1, characterized in that: The overall length of the artificial lens is 13 mm.

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