Cataract surgery phacoemulsification needle

Abstract

The invention provides a cataract surgery ultrasonic emulsification needle which comprises an ultrasonic emulsification handle. A hollow tube is installed at the end of the ultrasonic emulsification handle, a hollow needle penetrates into the hollow tube, the tail end of the hollow needle is connected with an ultrasonic energy line in the ultrasonic emulsification handle, a sleeve is installed on the inner side of the front end of the ultrasonic emulsification handle through a support, the tail end of the hollow needle penetrates through the sleeve, protrusions are arranged around the tail end of the hollow needle, a through hole is formed in the side of the sleeve, an inserting rod penetrates into the through hole, the end of the inserting rod is located outside an ultrasonic emulsification handle shell, a slope is arranged at the end of the inserting rod, an elastic sleeve is fixed to the periphery of the portion, between the sleeve and the ultrasonic emulsification handle shell, of the inserting rod, and the end of the elastic sleeve is attached to the sleeve. Multiple acoustic lenses are installed on the inner side of the end of the hollow tube, and a fixing ring is installed at the end of the hollow tube. By means of the cataract surgery ultrasonic emulsification needle, the cataract crushing time can be shortened to 3-5 min, and the mental stress of a patient in the surgical process can be reduced.

Description

technical field [0001] The invention belongs to the field of ophthalmic instruments, in particular to a phacoemulsification needle for cataract surgery. Background technique [0002] Cataract phacoemulsification is a microscopic surgery in which cataracts are operated on using a phacoemulsification machine. During the operation, a phacoemulsification needle is inserted into the small incision of the cornea or sclera of the operated eye to crush the cloudy lens and cortex into a chylus, and the chylus is sucked out with the help of a suction perfusion system while keeping the anterior chamber full, and then Implantation of intraocular lens, so that patients see the light again. At present, the phacoemulsification needle is purely longitudinal and linear propagation, which still takes 5-10 minutes during the crushing process, because the energy cannot be directly concentrated on the tissue to be crushed. Although acoustic focusing can increase the effect of energy aggregatio...

AI Technical Summary

Problems solved by technology

At present, the phacoemulsification needle is purely longitudinal and linear propagation, which still takes 5-10 minutes during the crushing process, because the energy cannot be directly gathered at the tissue to be crushed

Although acoustic focusing can increase the effect of energy aggregation, the acoustic lens must be located on the path of the ultrasound. This kind of equipment needs to be incisioned through sharp instruments first, which increases the operation steps and the pain of the patient. This method is rarely used.

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