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Polyhedral concave lenses for focusing pressure waves on medical devices

A technology of medical equipment and concave lens, applied in lens, medical science, surgery, etc., can solve problems such as pressure conduction loss, achieve the effect of improving efficiency, changing effective focal spot and focal length, and solving the problem of pressure conduction loss

Active Publication Date: 2018-10-09
SHENZHEN HYDE MEDICAL EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Therefore, the technical problem to be solved by the present invention is to provide a polyhedral concave lens for pressure wave focusing on medical equipment, to solve the problem of pressure conduction loss caused by the difference in lens thickness, save lens materials, and improve the efficiency of pressure transmission

Method used

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  • Polyhedral concave lenses for focusing pressure waves on medical devices
  • Polyhedral concave lenses for focusing pressure waves on medical devices
  • Polyhedral concave lenses for focusing pressure waves on medical devices

Examples

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Embodiment 1

[0040] Such as Figure 4-6 As shown, this embodiment provides a polyhedral concave lens for focusing pressure waves on medical equipment. The incident surface 11 of the concave lens is provided with multiple curved Fresnel lens ridges 12 with the same arc R1, and the output surface 13 It is a complete arc. Therefore, each transmission distance of light in the lens is very short, and the loss of the lens is greatly reduced.

Embodiment 2

[0042] Such as Figure 7-9 As shown, this embodiment provides a polyhedral concave lens for pressure wave focusing on medical equipment. The incident surface 21 of the concave lens is a complete arc, and the output surface 22 is provided with multiple arc Fresnels of the same arc. 尔lens tooth pattern 23. The output surface is composed of multiple arcs of the same arc, which can improve the efficiency of pressure transmission. Since the center of the radius of the arc R2-R5 is at one point, this lens can also reduce the loss of the lens.

Embodiment 3

[0044] Such as Figure 10-12 As shown, this embodiment provides a polyhedral concave lens for focusing pressure waves on medical equipment. The incident surface 31 of the concave lens is a complete arc, and the output surface 32 is a plurality of arcs with different arcs and different arc centers. Surface of the Fresnel lens tooth pattern 33. Since the output surface 32 is a plurality of arcs with different radii R2-R5, etc., and all the arcs have different center points, the characteristic of this lens is to obtain a larger focal area, or focal area, or focal spot. It can be seen that the concave lens described in the embodiment changes the focal spot and focal length of the pressure focusing.

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Abstract

The invention provides a polyhedral concave lens arranged on medical equipment and used for pressure wave focussing, the lens comprises an incident plane and a light output plane, wherein a Fresnel lens insection is arranged on the incident plane or the light output plane. According to the above, the polyhedral concave lens provided by the invention solves a pressure transmission loss problem caused by thickness difference of lens, manufacturing materials of lens are saved, efficiency of pressure transmission is improved, and the polyhedral concave lens can effectively bring a change on focal spot and focal distance of pressure wave focussing.

Description

Technical field [0001] The present invention relates to the technical field of medical equipment, in particular to a polyhedral concave lens for focusing pressure waves on medical equipment. Background technique [0002] At present, pressure waves have been widely used in medicine, such as extracorporeal lithotripsy, treatment of soft tissue injuries, treatment of nonunion, treatment of femoral head necrosis, treatment of cardiovascular diseases, etc., all require pressure waves. [0003] Pressure wave is a form of energy transfer. The electromagnetic effect, hydroelectric effect, piezoelectric effect, etc. produced by the release of high-voltage electric pulses act on the metal film in the liquid, causing the metal film to vibrate at a high speed. The way is transmitted through the liquid. Because the pressure appears in the form of pulses, it is called pressure wave. Pressure waves have some characteristics such as sound wave or light wave refraction, reflection, focusing, and e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B3/08A61B17/00
CPCA61B17/00A61B2017/00141A61B2017/00154G02B3/08
Inventor 陈文韬张东方孙西钊
Owner SHENZHEN HYDE MEDICAL EQUIP
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