Upper iris posterior synechia micro-separation scissors

Abstract

The invention belongs to the field of medical devices, and relates to upper iris posterior synechia micro-separation scissors. The design characteristics of the micro-scissors mainly comprise a scissors head bent into a hook shape. The scissors main body is similar to vitreoretinal scissors and comprises a handle, a connecting rod and the scissors head. The scissors head is designed vertically, that is to say, the movement direction of the scissors head is parallel to the length and diameter of the rod body, an outer side scissors head is fixed, an inner side scissors head can slide forward toperform fit shearing with the outer side scissors head, the front end is bent rearward to from a hook shape, and the angle of the scissors head after bending with the connecting rod at the rear end is 60 DEG. The micro-separation scissors can be used for upper iris posterior synechia separation in different extents and types, especially are suitable for upper iris posterior synechia micro-separation during secondary intraocular lens implantation, is convenient and fast, reduces intraoperative bleeding and operation time, reduces post-operative reaction, and better improves operation safety, curative effect and satisfaction degree.

Description

technical field [0001] The invention relates to the field of medical devices, and relates to a pair of scissors for the microscopic separation of posterior synechia of the upper iris, in particular to a pair of scissors for the microscopic separation of posterior synechia of the upper iris during the second-stage intraocular lens implantation. Background technique [0002] In the prior art, after congenital cataract and traumatic cataract extraction, aphakic patients after vitrectomy combined with cataract extraction often encounter posterior synechia of the iris during the second-stage intraocular lens implantation, that is, the iris and ciliary sulcus The residual lens capsule is adhered due to the inflammation after the first operation, resulting in small pupils, which affects the operation, especially the separation of the posterior synechia of the upper iris; and the adhesion of the iris and the residual lens capsule will significantly affect the artificial Stability af...

AI Technical Summary

Problems solved by technology

[0011] 1) The surgical incision is generally at the top. Due to the radian design of the scissors, it cannot be bent. Usually, the posterior adhesion of the iris above the incision, especially near the incision, is very difficult to separate with capsular scissors, and cannot reach the back of the iris to separate the upper adhesion well. , need to use a 1ml syringe needle bent into a hook shape;

[0012] 2) The needle of the 1ml syringe is small and too sharp, which is easy to damage the surrounding tissue, accidentally injure the iris, cause bleeding, block the surgical field of view, and make the already difficult operation worse. For the adhesion and separation of the upper iris, the tip of the needle needs to be bent into a hook The time and quality of adhesion after the final separation of the iris are closely related to the clinical experience of the doctor;

[0013] Due to the above defects, it is a technical difficulty to deal with the posterior synechia of the iris near the upper incision in the second-stage intraocular lens implantation surgery in clinical practice, especially for beginners who lack experience. The psychological pressure of the doctor and the convenience also increase the surgical trauma and bad surgical experience of the patient. Therefore, there is an urgent need for a device that can easily separate the posterior synechia of the iris near the upper incision during the second-stage intraocular lens implantation operation. There is no such medical device report

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