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Nucleus breaking device for cataract

A cataract and nucleus fragmentation technology, applied in the field of medical devices, to achieve the effect of reducing surgical incision, shortening operation time, and reducing damage

Pending Publication Date: 2018-08-31
THE SECOND XIANGYA HOSPITAL OF CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a cataract core breaker, which solves the problem of large incisions for cataract patients with grade four or above

Method used

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  • Nucleus breaking device for cataract

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Embodiment Construction

[0011] figure 1 A cataract nucleus fragmentation device is shown. Two hollow cylinders with different diameters penetrate to form a cannula 1, a fixed needle 4 is placed in the cannula 1, and the tail end of the fixed needle 4 is at the large-diameter end of the cannula 1. The tail end of the needle 4 extends out of the sleeve 1 and is provided with an ejection plate. The ejection plate is used to push the fixed needle 4 to move back and forth in the sleeve 1. The top of the fixed needle 4 is located at the small to the diameter end of the sleeve 1, and the top of the fixed needle 4 is covered with a fish-net-like nuclear crushing net 2. The fish-net-like nuclear crushing net 2 is provided with a shrink ring 3, and the control end 5 of the shrink ring 3 is located in the sleeve 1 large diameter port.

[0012] The sleeve is made of plastic, and the diameter of the sleeve is 1.8mm-3mm; the shrink ring is made of metal, and the diameter of the shrink ring is 0.03mm-0.5mm; the core ...

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Abstract

Disclosed is a nucleus breaking device for the cataract. The nucleus breaking device comprises a cannula, a fixing needle and a nucleus breaking net provided with a shrinking ring, two hollow cylinders with different diameters are cut through to form the cannula, the fixing needle is arranged in the cannula, the tail end of the fixing needle is arranged at the large-diameter end of the cannula, stretches out of the cannula and is provided with a push-out plate, and the push-out plate is used for pushing the fixing needle to move back and forth in the cannula. The top of the fixing needle is located at the small-diameter end of the cannula, the fishnet-shaped nucleus breaking net covers the top of the fixing needle and is provided with the shrinking ring, and the control end of the shrinking ring is located in a large-diameter port of the cannula. By means of the nucleus breaking device for the cataract, a surgical incision of a patient with the extremely-hard-nucleus cataract can be shrunken, the surgical time can be shortened, the damage caused by ultrasonic energy can be reduced, the selection range of high-end intraocular lenses can be increased, and thus prognosis of the patient with the hard-nucleus cataract is improved.

Description

Technical field [0001] The invention relates to medical equipment, in particular to a cataract nucleus crusher. Background technique [0002] Cataract is currently the world's largest blindness disease, and the only effective treatment is surgery. The processing of the cataract lens nucleus during surgery is the central link. Small incision or micro incision phacoemulsification for cataract is currently the mainstream surgical procedure. Its basic principle is to use ultrasonic energy to emulsify and break the nucleus. The nucleus of the lens is sucked out of the eyeball with a small incision, and then an intraocular lens is implanted. However, for developing countries such as China, due to low surgical coverage, late operation timing, and high incidence of high myopia, the proportion of hard nuclear patients above grade 4 is significantly higher. For such patients, if the phacoemulsification method requires high energy and long-term action during the operation, the risk of cor...

Claims

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Application Information

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IPC IPC(8): A61F9/007
CPCA61F9/00736
Inventor 李芸赵元贾松柏陈百华何彦曹健
Owner THE SECOND XIANGYA HOSPITAL OF CENT SOUTH UNIV
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