Cataract surgery instruments

The cataract surgery instrument addresses the limitations of existing surgeries by employing a deformable member and mesh bag for mechanical radial cutting, ensuring minimal incisions, reduced tissue damage, and cost-effective, universal applicability.

JP7868901B2Active Publication Date: 2026-06-02RUGAO WEN NUO MEDICAL TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
RUGAO WEN NUO MEDICAL TECHNOLOGY CO LTD
Filing Date
2023-04-27
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing cataract surgeries face issues such as large incisions, long operation times, slow recovery, and potential damage to ocular tissues due to ultrasound or laser use, with high costs and limited applicability.

Method used

A cataract surgery instrument with a deformable member and mesh bag that can enter through a small incision, mechanically cutting the lens nucleus without ultrasound or lasers, using a radial cutting method to minimize tissue damage and surgical incisions.

Benefits of technology

The instrument allows for efficient, quick, and cost-effective cataract surgery with minimal tissue damage, faster recovery, and universal applicability, avoiding the drawbacks of ultrasound and laser-based methods.

✦ Generated by Eureka AI based on patent content.

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Abstract

A cataract surgery instrument belonging to the technical field of medical surgical instruments, the cataract surgery instrument includes a direction guide tube (3), a deformation member (2), and a mesh bag (1), the end of the direction guide tube (3) has a notch (31) that communicates with its inner cavity (35), the deformation member (2) has a deformation portion (21) and a connecting portion (22) connected to the deformation portion (21), the connecting portion (22) is drilled into the inner cavity (35) and is movable along the axial direction of the direction guide tube (3), the mesh bag (1) is connected to the deformation portion (21), and the connecting portion (22) moves the deformation portion (21) and the mesh bag (1) along the axial direction of the direction guide tube (3), causing the deformation portion (21) and the mesh bag (1) to contract into the inner cavity (35) or expand out of the inner cavity (35). Cataract surgery instruments use a mechanical radial cutting method on the lens, which causes no thermal damage to intraocular tissues and is less likely to damage the posterior capsule, ligaments, and corneal endothelium. It shortens the operation time, is highly efficient, requires a small surgical incision, minimizes patient discomfort, allows for quick recovery, is easy to operate and learn, is inexpensive, and avoids the various adverse effects of ultrasonic vibration.
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Citation Information

Patent Citations

  • Cataract looped net nucleus chopping device

    CN106176034A

  • Nucleus breaking device for cataract

    CN108464885A

  • Net shape nucleus cracker for cataract

    CN200970301Y

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    CN201230928Y

  • A incomplete nuclear of crystalline operation auxiliary device for after film rupture of cataract surgery bag

    CN205698214U