Lacrimal point punching device with lacrimal point expansion function

Abstract

The invention belongs to the technical field of equipment for ophthalmologic operations, and particularly relates to a lacrimal point punching device with a lacrimal point expansion function. The lacrimal point punching device comprises a clamping part, wherein the middle of the clamping part is a main body part, the tail end of the main body part is provided with a connecting part, the tail end of the connecting part is a convex part with a tip end, and the tip end of the convex part is inserted into a lacrimal point so as to punch a polyp of the lacrimal point or narrow lacrimal point tissueto implement lacrimal point forming. Due to the fact that the tail end of the connecting part is provided with the convex part with the tip end, the device can be conveniently inserted into the lacrimal point when the device is used for conducting surgical operation on a symptom of lacrimal point stenosis or polyps, operation of medical staff is facilitated, and the defect that the pain of a patient is increased due to the fact that the lacrimal point is repeatedly expanded through an expander is overcome; and in addition, by means of the device, the operation time is greatly shortened, and the pain of the patient is further relieved.

Description

technical field [0001] The invention belongs to the technical field of equipment used in ophthalmic surgery, and in particular relates to a punctum biting device with the function of dilating the puncta. Background technique [0002] Ordinary trabecular cutter (ie, scleral cutter), its structure is as follows: [0003] It includes a clamping part, a main body part in the middle of the clamping part, a notch-shaped connecting part close to the end of the main part, and an extruding part at the end of the connecting part. The shape of the extruding part is close to a cylinder, and its top end is a plane structure. [0004] CN2255838Y discloses a kind of improved corneosclera biting device, the included angle between the annular blade (3) of its head and the moving handle (2) is 135°-165°, the corneosclera biting device manufactured according to this angle , when used under the operating microscope, the movement handle (2) of the instrument will not block the operator's field...

AI Technical Summary

Problems solved by technology

[0007] Clinically, if the above-mentioned scleral cutter or ordinary scleral cutter is directly applied to the punctal surgery, it is not only inconvenient for medical staff to operate, but also takes a long time, which will increase the suffering of patients

After many attempts, the inventor found that if a common scleral bite is used to treat punctal stenosis or polyps with puncta, it is necessary to use a punctal dilator to assist the scleral bite. It is elastic, and different patients have different degrees of elasticity of the lacrimal point. Repeated use of the conical dilator will increase the pain of the patient; after expansion, it is easy to shrink and expand repeatedly, which not only takes a long time, but is also inconvenient for medical staff to operate , will increase the suffering of the patient

Moreover, repeated expansion of the lacrimal puncta by the elongated conical dilator also increases the risk of damage to the lacrimal canaliculus epithelium, and sometimes even causes unexpected risks such as penetrating damage to the canalicular wall and punctal avulsion.

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