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Artificial lens capsule bag

A technology of intraocular lens and capsular bag, which is applied in the field of medical devices, can solve the problems of lack of capsule and inability to implant intraocular lens, and achieve the effect of small wound, avoiding sutures, and compact structure

Pending Publication Date: 2020-08-14
复旦大学附属中山医院厦门医院
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The problem solved by the present invention is to provide an intraocular lens capsular bag to solve the problem that the intraocular lens cannot be implanted due to the absence of the capsule

Method used

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Embodiment Construction

[0049] For the defect or loss of the lens capsule and suspensory ligament, the current clinical solution is to suspend the intraocular lens with sutures. Disadvantages of this approach include:

[0050] (1) Not all design types of intraocular lenses can be used for suture suspension;

[0051](2) Due to the manual fixation of sutures in IOL suture suspension, it is difficult to completely balance the tension of each IOL loop, so the intraocular lens is often displaced during or after the operation, which affects the postoperative vision of the patient;

[0052] (3) If sutures are used for fixation, the sutures may degrade in the long-term (some literature points out that more than 10 years), which may cause displacement or posterior dislocation of the intraocular lens, requiring reoperation.

[0053] For partial defect of the lens capsule or partial rupture of the zonular ligament, other current clinical solutions are to adopt the method of implanting a capsular tension ring, ...

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Abstract

The invention relates to an artificial lens capsule bag which comprises a capsule bag main body and a capsule bag supporting fixing structure, wherein the capsule bag main body is a flexible folding bag body with a capsule bag opening; the capsule bag supporting fixing structure comprises a first memory alloy body and a second memory alloy body; the first memory alloy body and the second memory alloy body penetrate the capsule bag main body; when the artificial lens capsule bag is in an implanted state, a ring-shaped structure is surrounded by the first memory alloy body and the second memoryalloy body; the ring-shaped structure is positioned in the capsule bag main body in order to open and expand the capsule bag main body, so that the capsule bag main body can load an artificial lens; and when the artificial lens capsule bag is in a pushing injection state, the first memory alloy body and the second memory alloy body are straightened into linear structures, and the capsule bag mainbody is wound on the linear structures. The artificial lens capsule bag is used for implantation of the artificial lens.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to an intraocular lens capsular bag. Background technique [0002] The lens is composed of lens capsule, lens epithelium, crystal fiber and suspensory ligament. The lens capsule and the zonular ligament connected with the lens form the lens-iris septum system together with the iris, which separates the eyeball into anterior and posterior segments. The anterior and posterior segment structures are dissected and Physiologically important. [0003] Ophthalmic lens diseases, clinically include: Marfan syndrome, traumatic lens subluxation and total dislocation, surgery-induced lens capsule rupture and zonular ligament injury, etc. [0004] These ophthalmic lens diseases can cause defects or even absence of the lens capsule and zonules. Once the capsule is defective, it is easy to cause problems such as the inability to fix the intraocular lens during the operation or the di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/16
CPCA61F2/1678A61F2/1662A61F2210/0014A61F2002/16901
Inventor 姚鹏翔马晓萍
Owner 复旦大学附属中山医院厦门医院
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