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System and method for eye surgical treatment and method of calibrating the system

A kind of surgery and eye technology, applied in the field of eye surgery treatment system, can solve the problems such as the inability to reliably rule out eye damage, and achieve the effects of reducing the risk of complications, avoiding thermal damage, and avoiding damage

Inactive Publication Date: 2016-01-20
WAVELIGHT GMBH
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  • Abstract
  • Description
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Problems solved by technology

However, an increase in the frequency of the laser system must take into account the control of the pulse energy, otherwise damage to the eye to be treated cannot be reliably ruled out

Method used

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  • System and method for eye surgical treatment and method of calibrating the system
  • System and method for eye surgical treatment and method of calibrating the system

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Embodiment Construction

[0029] figure 1 The system 10 for eye surgery shown in includes a laser device 12 having an argon fluoride excimer laser emitting ultraviolet light at a wavelength of 193 nm. The laser device 12 operates at a repetition rate of 1050 Hz. However, lasers with lower repetition rates (eg, between 200 Hz and 750 Hz) may also work in system 10 .

[0030] Furthermore, the system 10 is equipped with a temperature recording device 14 . The temperature recording device 14 includes a thermal imaging camera 16 based on infrared radiation, which enables the temperature recording device 14 to perform temperature measurements in a non-contact manner. Furthermore, the temperature recording device 14 comprises a diverting device 18 for diverting infrared radiation to the thermal imaging camera 16 . exist figure 1 In the exemplary embodiment of the eye surgery treatment system 10 shown in , the steering device 18 consists of a mirror coated with silver, aluminum or gold, which is placed in ...

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Abstract

A system (10) for surgical treatment of an eye comprises a laser arrangement (12) designed to emit light with a wavelength and repetition rate suitable for the surgical treatment of the eye. The system (10) further comprises a temperature detector (14), which is designed to detect the temperature of an object (26) to which the light from the laser arrangement (12) is to be applied.

Description

technical field [0001] The present invention relates to a system and method for surgical treatment of the eye, particularly using high repetition rate laser light. The invention further relates to a method of calibrating such a system for surgical treatment of the eye. Background technique [0002] In refractive eye surgery for treating vision defects by photoablation of the cornea, argon-fluoride excimer lasers (argon-fluoride excimer lasers) that emit ultraviolet light at a wavelength of 193 nm are commonly used at present. Since the cornea exhibits high absorption in this wavelength range, corneal tissue can be precisely resected with minimal compression of adjacent tissue layers. In this case, the ablation depth (i.e. the thickness of the corneal tissue layer ablated by the laser) is controlled by appropriate control of the pulse energy, which involves monitoring the pulse energy and in this way reliably avoiding Injury to the patient due to changes in tissue adjacent ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F9/008
CPCA61F9/00802A61F2009/00844A61F2009/00855
Inventor 阿敏·韦尔赫费尔克里斯托夫·德尼茨基
Owner WAVELIGHT GMBH
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