Method and device for regulating spot size of long-pulse laser

A technology for adjusting devices and laser spots, which is applied in medical science, surgery, parts of surgical instruments, etc.

Active Publication Date: 2012-09-19
上海奥通激光技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there is no light spot size adjustment device of a therapeutic instrument that is simple enough, practical and durable.

Method used

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  • Method and device for regulating spot size of long-pulse laser
  • Method and device for regulating spot size of long-pulse laser
  • Method and device for regulating spot size of long-pulse laser

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Embodiment Construction

[0028] figure 1 , figure 2 Shown is a laser spot size adjustment device, including a lens switching drum 1, the lens switching drum 1 is connected to the equipment frame through a connecting shaft 8, and can freely rotate around the axis of the connecting shaft 8. The concentric circumference of the lens switching drum 1 is uniformly provided with 4 lens through holes whose hole axes are parallel to the axis of the switching drum 1, and lenses with different focal lengths are fixedly arranged in the lens through holes (first, The second, third, and fourth lenses 4, 5, 6, 7), while ensuring that the axes of the lenses are on the same concentric cylindrical surface of the lens switching drum 1; outside the lens switching drum 1 The circumferential surface is provided with an angle positioning device to ensure that the axis of one of the lens holes coincides with the axis of the main laser light path during each rotation and positioning.

[0029] The angle positioning device i...

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PUM

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Abstract

The invention discloses a device for regulating the spot size of a long-pulse laser. The device comprises a lens switching rotary drum, wherein a plurality of lens through holes are formed in the lens switching rotary drum, and the lens through holes are internally fixedly provided with lenses with different focuses; and an angle location device is arranged on the outer circumferential surface of the lens switching rotary drum to ensure that the axial line of one lens through hole is coincident with the axial line of a laser main light path during every rotating location. During the use, the lens switching rotary drum is rotated, a plurality of matching grooves are formed on the periphery of the drum wall of the switching rotary drum, and the corresponding lens is turned into the laser main light path when rotating to a certain angle, therefore, the most proper treatment spot is selected according to the shape and area of the skin to be treated, the accurate treatment is realized and the side effects are reduced.

Description

technical field [0001] The invention relates to an optical device, in particular to a laser spot adjustment device. Background technique [0002] Nd: YAG crystal is currently the laser crystal with the best comprehensive performance. The laser wavelength is 1064nm, widely used in military, industrial and medical industries. 1064nm Nd: YAG laser therapy instrument has been widely used in the field of aesthetic medicine for more than ten years. [0003] 1064nm long pulse laser is an effective means to treat vascular diseases. Oxygenated hemoglobin rich in hemangiomas and skin red blood filaments has a strong absorption capacity for 1064nm. The hemoglobin in the target tissue absorbs the laser light energy and converts it into heat energy, resulting in photothermal coagulation, resulting in necrosis and degeneration of vascular endothelial cells, so as to achieve the purpose of treating hemangioma and red blood filaments by laser. [0004] Laser hair removal: The therapeuti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B18/20
Inventor 万俊超曹庆丰
Owner 上海奥通激光技术有限公司
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