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A device for endoscope field diaphragm

A field diaphragm and endoscope technology, which is applied in the field of minimally invasive medical treatment, can solve the problems of unqualified endoscopes, not easy to find, and boundary burrs of the field diaphragm.

Active Publication Date: 2018-09-21
QINGDAO O MEC MEDICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The field diaphragm of the existing endoscope is usually a mechanical part. During the production and assembly process of the endoscope, the field diaphragm is exposed to the air. During the cleaning and wiping process, it is easy to damage and hang foreign objects such as dust. and not easy to detect
During the use of the endoscope, the field diaphragm of the endoscope is in the same chamber as other optical and mechanical parts of the endoscope, and dust, glass shavings and other foreign objects inside the endoscope are also easy to stick to On the field diaphragm of the endoscope, burrs appear on the border of the field diaphragm, which affects the use
It can be seen from this that there are uncontrollable factors in the field diaphragm of the endoscope in the process of assembly and use, resulting in the endoscope being unqualified due to the defect of the field diaphragm. Therefore, it is necessary to inspect the endoscope The structure of the field diaphragm is improved to overcome the above problems while ensuring its function

Method used

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  • A device for endoscope field diaphragm
  • A device for endoscope field diaphragm
  • A device for endoscope field diaphragm

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The field stop pattern (212) is prepared on the exit surface (211) of the mask substrate (21), the field stop pattern (212) is circular, and the exit surface (211) of the mask substrate (21) ) and the incident surface (221) of the protective sheet (22) are glued together to form a field diaphragm assembly (2).

[0020] working principle:

[0021] The endoscope main body (1) images the object observed by the endoscope on the plane of the field diaphragm figure (212), which coincides with the field diaphragm figure (212), and the light-proof area of ​​the field diaphragm figure (212) The imaging beam is blocked, and the light beam in the light-transmitting area passes through the field diaphragm assembly (2) to continue imaging, and the eyepiece assembly (3) simultaneously forms the image transmitted from the field diaphragm assembly (2) and the field diaphragm, and finally Observe the image and the field diaphragm on the display device, the field diaphragm figure (212) ...

Embodiment 2

[0023] The field stop pattern (212) is prepared on the exit surface (211) of the mask substrate (21), the field stop pattern (212) is circular, and the exit surface (211) of the mask substrate (21) ) is close to the incident surface (221) of the protective sheet (22).

[0024] working principle:

[0025] The endoscope main body (1) images the object to be observed on the plane of the field diaphragm, which coincides with the field diaphragm figure (212), and the opaque area of ​​the field diaphragm figure (212) blocks the imaging beam and transmits light. The area light beam passes through the field diaphragm assembly (2) to continue imaging, and the eyepiece assembly (3) simultaneously forms the image transmitted from the field diaphragm assembly (2) and the field diaphragm, and finally observes the image on the display device And the field of view diaphragm, the field of view diaphragm (212) is a rectangle, and the field of view diaphragm (212) limits the imaging range of t...

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PUM

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Abstract

The invention relates to a novel endoscope field diaphragm device and belongs to the technical field of minimal invasion medical treatment. A masking method is adopted for preparing a field diaphragm pattern on a mask substrate; a protecting plate is bonded with the mask substrate, so that the field diaphragm pattern is protected between the mask substrate and the protecting plate; the field diaphragm is prevented from being damaged or polluted in production assembly and use processes; the novel endoscope field diaphragm device also has the advantage that the field diaphragm pattern can be conveniently processed into the circular, oval and rectangular shape or other irregular shape; the novel endoscope field diaphragm device is especially suitable for an endoscope optical system and other optical systems with higher field boundary demands and can be used for preparing the field diaphragm.

Description

Technical field: [0001] The invention relates to a device for an endoscope field of view diaphragm, which belongs to the technical field of minimally invasive medical treatment. Background technique: [0002] The field diaphragm of the endoscope is an essential structure of the endoscope, and its function is to limit the imaging range of the endoscope. During diagnosis or surgery, the image observed by the endoscope is imaged on the monitor, and the field diaphragm is also imaged on the monitor at the same time. The field diaphragm of the endoscope limits the imaging range of the endoscope. The field diaphragm of the endoscope requires clear boundaries without burrs and unevenness. The image of the field diaphragm observed on the monitor will be magnified by more than 100 times. This places very high demands on the field diaphragm. [0003] The field diaphragm of the existing endoscope is usually a mechanical part. During the production and assembly process of the endoscop...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B1/00A61B1/04
CPCA61B1/00064A61B1/0011A61B1/00131A61B1/00195A61B1/04
Inventor 田宝龙毛荣壮李明治秦义宏
Owner QINGDAO O MEC MEDICAL TECH