Operating knife for glaucoma operation and positioning scale thereof

Abstract

The invention discloses an operating knife for glaucoma operation and a positioning scale thereof. The operating knife comprises a microscopic operating knife and the positioning scale which is used for forming a U-shaped cutting opening by matching with the microscopic operating knife, wherein the positioning scale is provided with a through-groove; the microscopic operating knife has a flexible structure; the microscopic operating knife further comprises a blade, a knife body and a knife sleeve; and the blade is fixedly connected with the knife body (1 II), and the knife body can retract in the knife sleeve and can reciprocate along the knife sleeve. The glaucoma operating knife component disclosed by the invention can be widely applied to the operation of scleral flaps in the glaucoma trabeculectomy operation, and can ensure the size accuracy of the cutting opening, establish a good basis for the next step of the operation, ensure the operation quality, and reduce the operation risks.

Description

technical field [0001] The invention relates to a medical device, in particular to a glaucoma scalpel and a positioning ruler thereof. Background technique [0002] Glaucoma is a common and frequently-occurring disease in ophthalmology, and it is the first irreversible blinding eye disease in ophthalmology. Most of the onset is insidious, and it can also be acute, which is very harmful. The characteristic is that the intermittent or continuous increase in intraocular pressure leads to damage to the optic nerve and visual function, manifested as optic atrophy, reduced visual field, and vision loss. In the late stage, it can lead to permanent blindness in both eyes. Some acute glaucoma can cause irreversible symptoms within a few hours after the onset. Sexual blindness. Trabeculectomy is one of the most commonly performed surgeries in the treatment of glaucoma. The operation generally follows the following steps: 1. Make a bulbar conjunctival flap, 2. Make a scleral flap, 3...

AI Technical Summary

Problems solved by technology

During the operation, the doctor directly uses a micro-scalpel to make an incision on the sclera based on his own experience. Even for experienced ophthalmologists, the size and depth of the incision are often difficult to maintain the standard size and depth, but it may not be good for inexperienced doctors grasp

Since the incision is made from the transparent cornea to the completely opaque sclera, and the surface is smooth and has a certain curvature, the incisions often have different depths, skewed, curved, offset, and uneven incision spacing during surgery, and even Cut through the corneosclera or the incision is too shallow, making it difficult to make a scleral flap during the operation, causing intraoperative and postoperative complications, and affecting the surgical effect

It is also possible that the edge of the incision is not smooth due to slight movement of the patient, insufficient stability of the doctor's technique, or other interference factors. Too deep or too shallow an incision will affect the effect of the operation.

The traditional scalpel blades are all fixed and exposed for a long time, so they may be stabbed due to the negligence of surgical personnel or other staff who touch surgical instruments; Take the scalpel and hand it to the assistant. At this time, the exposed sharp blade may cut or stab the hand of the medical staff, which is very dangerous

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