3 results about "Corneal ablation" patented technology

A laser system for detecting a corneal ablation threshold potential by means of spectral analysis, comprising a sample module (4), a femtosecond laser transmitter module (1), and a laser focusing module (2), characterized in that the laser system further comprises a spectral analysis module (3), wherein the sample module (4) serves to receive a corneal sample, the femtosecond laser transmitter module (1) serves to transmit a laser beam, the laser focusing module (2) serves to focus the laser beam onto the sample module (4), and the spectral analysis module (3) serves to perform spectral analysis of a laser-induced plasma light signal and to detect a corneal ablation threshold potential, and wherein the femtosecond laser transmitter module (1) transmits a laser beam which, after focusing by the laser focusing module (2), appears on the corneal sample of the sample module (4), wherein the corneal sample, after laser induction, laser-induced plasma light signal emitted,which is sent via the laser focusing module (2) to the spectral analysis module (3) so that the spectral analysis module (3) performs a spectral analysis of the laser-induced plasma light signal and a detection of the corneal ablation threshold potential, wherein the spectral analysis module (3) is configured to determine, by analyzing the spectral information of the laser focusing points, whether the laser is focused on the cornea or other substances, taking into account that the spectrum produced by corneal tissue is different from the spectrum produced by other substances in contact with the cornea.

The present invention relates to the technical field of laser devices, and provides a multi-wavelength medical laser system. The system in the present invention comprises: a femtosecond laser, a large-numerical-aperture focusing lens group, a deep ultraviolet nanosecond laser, a beam compensator, a first laser transmission apparatus, a first reflector, a second laser transmission apparatus, a laser light positioning apparatus, an eye-tracking system, and an operating microscope. The deep ultraviolet nanosecond laser generates deep ultraviolet laser light having a wavelength ranging from 190 to 213 nm. The femtosecond laser generates femtosecond laser light having a wavelength ranging from 800 nm to 1100 nm. The first reflector is capable of reflecting the femtosecond laser light and transmitting the deep ultraviolet laser light, or alternatively, the first reflector is capable of reflecting the deep ultraviolet laser light and transmitting the femtosecond laser light, so that a single instrument is capable of both utilizing the deep ultraviolet laser light for precise corneal ablation and employing the femtosecond laser light to perform cutting within the intermediate layer of the cornea. Multiple instruments and patient transfer are not needed during treatment, thereby simplifying a treatment procedure and improving the treatment efficiency.

1. Name of the designed product: excimer laser (SL500). 2. Use of the designed product: used for corneal ablation, prescription lens marking, optical sensor manufacturing, protein research, FBG writing, etc. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view 1.