Systems and methods for eliminating post-excitation vibration in ophthalmic surgical handpieces
OwnerDavid Hertweckinventor
Life of this patent
Estimating the term…
Abstract
A method of eliminating post-excitation vibration provided from a surgical handpiece to a patient's eye during ophthalmic surgery. The surgical handpiece includes an ultrasonic vibration structure for generating vibration and a needle for transmitting the vibration into the patients eye. The method includes exciting the ultrasonic vibration structure and thereby causing the needle to vibrate for emulsifying tissue in the patient's eye, ceasing the excitation of the crystal structure, and generating a brake signal to restrain the vibration of the needle, upon ceasing the excitation of the crystal structure, thereby reducing the vibration provided to the patient's eye after excitation of the crystal structure has ceased.
Claims13
A method of eliminating post-excitation vibration provided from a surgical handpiece to a patient's eye during ophthalmic surgery, the surgical handpiece including an ultrasonic vibration structure for generating vibration and a needle for transmitting the vibration into the patient's eye, the method comprising:
- exciting the ultrasonic vibration structure and thereby causing the needle to vibrate for emulsifying tissue in the patient's eye;
- ceasing the excitation of the ultrasonic vibration structure;
- and
- generating a brake signal to restrain the vibration of the needle, upon ceasing the excitation of the ultrasonic vibration structure, thereby eliminating the vibration provided to the patient's eye after excitation of the ultrasonic vibration structure has ceased.
An ophthalmic surgery system for eliminating post-excitation vibration provided from a surgical handpiece to a patient's eye during ophthalmic surgery, the ophthalmic surgery system comprising:
- a surgical handpiece including an ultrasonic vibration structure and a needle in mechanical communication with the ultrasonic vibration structure whereby excitation of the ultrasonic vibration structure causes the needle to vibrate;
- and
- a control circuit configured to provide an excitation signal to the ultrasonic vibration structure in response to an operator demand, the control circuit being configured to provide a brake signal to the surgical handpiece, upon ceasing the excitation signal to the crystal structure, thereby reducing vibration to a patient's eye after excitation of the crystal structure has ceased.
Dependencies are inferred from the claim text.