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Precision Cut in Laser Eye Surgery with BLDC Motor

woman's eye close upSurgical Precision For Corrective Vision

Today, there are many methods of performing surgery at various sites throughout the human body. By incorporating innovative motorized medical devices and robotics, surgeons can operate with improved precision and consistency. With additional advances in state of the art technologies, such as laser equipment, complex eye surgery has now become a standard and more common procedure. When operating on such a delicate organ as the human eye, every instrument and tool needs to be exact, precise, and reliable. 

Corrective eye surgery has grown significantly in popularity over the last decade, due to the quick recovery time and the high rate of success. Perhaps the most common procedure or "terminology" for corrective eye surgery is LASIK (Laser-Assisted in situ Keratomileusis). LASIK is performed by a certified ophthalmologist who (in simple terms) uses an excimer laser to reshape the cornea of the eye to improve visual acuity.

 corrective eye surgery, step by step

The Procedure

A surgical instrument is placed precisely over the eyeball of the patient and held in place with the aid of a controlled vacuum. Then a small incision is made in the uppermost layer of the cornea. The resulting circular flap is not detached completely. It remains firmly connected to the cornea, acting as a hinge. Then the flap is folded to one side; the operating field has now been prepared for the excimer laser. This intervention serves to prepare for corrective surgery to restore eyesight and remedy other vision defects using laser beams.


Handheld Precision of Amadeus II

Surgical Laser Instrument Prior to reshaping the cornea, the precision cut to create the "hinge" is performed by the Amadeus II™ Microkeratome device, made by Ziemer Group. With high precision the blade is moved forward and back by the FAULHABER® stepper motor with PRECIstep® technology  along with a planetary gearhead. A FAULHABER brushless DC motor causes the blade to oscillate simultaneously. 

For patients this method is more than just a procedure to become independent from glasses and contacts - it's also extremely convenient. The standard surgery takes place as an outpatient procedure lasting anywhere from 10-15 minutes and is largely pain-free. Recovery times are short, and the technique meets stringent safety standards.

To learn more about this device and the surgical procedure, visit The Ziemer Group.

For more information about how MICROMO and FAULHABER can provide customized motor solutions for your next medical device, contact a MICROMO application engineer today. For non-custom DC motors, encoders, and other accessories, visit our product selector to view MICROMO products, our wide range of configurations, and to purchase parts online.

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