Ciliary sulcus positioner

Abstract

The ciliary sulcus positioner comprises a guide tube which is of a straight tube structure, and a puncture needle is arranged in the guide tube in a penetrating mode; the guide tube is provided with a front end serving as an insertion end and a rear end opposite to the front end; the front end is provided with a front end opening for the puncture needle to penetrate out, and the rear end is provided with a rear end opening for the puncture needle to penetrate in; scale marks are further arranged on the tube wall of the guide tube. The pointer is connected with the guide tube and moves together with the guide tube; the pointer is provided with an indicating end adjacent to the front end of the guide tube; the indicating end is provided with a light emitting part which can be controlled to emit light; the distance between the indicating end of the indicating pointer and the front end is 1-5 mm. The whole pointer and the guide tube extend forwards together, and the indicating end of the pointer and the front end of the guide tube are spaced to form a spacing opening for clamping an iris between the pointer and the guide tube.

Description

technical field [0001] The present application relates to the field of ophthalmic treatment instruments, in particular to a ciliary sulcus locator. Background technique [0002] At present, ophthalmologists need to pierce the puncture needle into the ciliary sulcus on the inner surface of the iris root during the intraocular lens loop fixation operation, introduce sutures, and ligate and fix the intraocular lens loop in the ciliary sulcus. However, during the actual operation, the ciliary sulcus cannot be directly observed due to the iris occlusion, and the puncture needle cannot be accurately pierced into the ciliary sulcus under direct vision, so the position of the ciliary sulcus can only be roughly estimated by relying on clinical experience. , to complete the puncture operation, which leads to a low probability of true accurate puncture into the ciliary sulcus, and a high surgical risk. [0003] If the puncture point is anterior, the puncture needle will easily damage ...

AI Technical Summary

Problems solved by technology

However, during the actual operation, due to the obstruction of the iris, the condition of the ciliary sulcus cannot be directly observed, and the puncture needle cannot be accurately inserted into the ciliary sulcus under direct vision, so the position of the ciliary sulcus can only be roughly estimated based on clinical experience , to complete the puncture operation, which leads to a low chance of truly accurately piercing into the ciliary sulcus, and the risk of surgery is relatively high

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