Ultrasonic energy control system and method in phacoemulsification

Abstract

The invention discloses an energy control system in an ultrasonic emulsification operation, which comprises an ultrasonic electric generator, an ultrasonic emulsification handle and an ultrasonic emulsification needle. The ultrasonic emulsification handle is connected with a suction pipeline; the suction pipeline is provided with a vacuum generation device and a controller; the controller is connected to the ultrasonic electric generator by a signal wire; the controller comprises a sensor, a comparator and a control unit; the sensor is used for sensing a pressure or flow in the suction pipeline; the comparator is used for comparing an actually measured value with a built-in standard value; the control unit is used for controlling start or shutdown, improvement or reduction of the output of ultrasonic energy. The energy control system has the beneficial effects that the output of the ultrasonic energy can be automatically started or shut down and improved or reduced by the blocking condition of the needle according to the hardness state, the crushing degree and the like of cataract, however, a suction function is continuously kept, so that the ultrasonic energy is acted on the cataract most effectively to the lowest extent.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an on-demand automatic control method and control system for ultrasonic energy in phacoemulsification. Background technique [0002] Cataract is a common blinding eye disease. Phacoemulsification (Phaco) was introduced into my country in the last century, and is now a routine treatment for cataracts. Compared with the traditional large incision cataract removal surgery, phacoemulsification (Phaco) is a minimally invasive surgery, which is to make a small incision of about 2-3 mm on the edge of the cornea, through which the ultrasonic After the emulsification needle crushes the turbid lens and cortex into chyle, the chyle is sucked out with the help of the suction and perfusion system while keeping the anterior chamber full, and then the intraocular lens is implanted to restore the patient's vision. Compared with traditional cataract extraction surgery, phacoemulsificati...

AI Technical Summary

Problems solved by technology

The disadvantage of longitudinal vibration is: longitudinal vibration will cause the vibration energy to push the cataract away from the emulsification needle, which will hinder the aspiration fluidity of fluid and tissue fragments to a considerable extent

The disadvantage of horizontal vibration is that there is considerable ultrasonic vibration on the side of the phacoemulsification needle

However, this mode is random, and it still inevitably wastes energy and reduces efficiency, especially for too soft or too hard cataract tissue

[0005] Therefore, it is necessary to propose a new technical solution to solve the above-mentioned technical problems of wasting too much ultrasonic energy and even causing damage to the intraocular tissue, so that the most suitable ultrasonic energy can safely act on the cataract tissue

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