Double-channel endoscope

An endoscope and dual-channel technology, applied in the fields of endoscopy, medical science, diagnosis, etc., can solve the problems of long distance of sensing surface, expansion to other fields, etc., achieve low installation requirements, realize magnification and imaging Effect of position, length and diameter shortening

Inactive Publication Date: 2015-03-25
TIANJIN POLYTECHNIC UNIV
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Problems solved by technology

However, this type of dual-channel endoscope can only be used with a special CCD, and this binocular endoscope cannot be expanded to other fields, such as a binocular endoscope directly observed by the human eye system; and this patent Design The distance from the end of the last set of rotating mirrors to the CCD sensing surface is usually longer

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Embodiment approach 1

[0017] Such as figure 2 Shown: Based on the content of this patent, a 3D endoscope structure can be realized by adding an imaging CCD to the rear end of the binocular endoscope. For example, the single-way mirror tube 7 has a diameter of 5mm, and at the end of the single-way mirror tube, add a right-angled prism with a right-angled side of 5mm, a short-focus lens with a diameter of 6mm and a focal length of 6.5mm, a right-angled prism with a right-angled side of 12.5mm, and a right-angled prism with a diameter of 25.4mm and a focal length of 25mm. The lens forms an optical steering and amplifying module 8; the images after the steering and amplifying module are respectively imaged on the photosensitive surfaces of the two CCDs, and the two CCDs are installed side by side in the space 9; 10 is the CCD power supply cable, data cable and lighting cable .

[0018] By using two right-angle prisms and placing the lens between the two prisms, the size requirement of the diameter of...

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Abstract

The invention discloses the design of a double-channel endoscope. The steering function and the imaging function of the double-channel endoscope are achieved through an eye lens, a rod-like lens, a prism, an optical lens and the like. By means of the special optical structural design, the geometric space is fully utilized, the size of a tube of the double-channel endoscope is minimized, and the size of the steering part and the imaging part at the rear end of the tube is minimized. By means of the design of coinciding of a lens focus point and an image plane in an endoscope system, the installation requirement of a light path system is lowered, the binocular interval, the imaging distance and magnification times can be adjusted conveniently, and the universality and the flexibility of the design are improved.

Description

technical field [0001] The invention relates to a dual-channel endoscope, which belongs to the technical field of medical diagnostic imaging. Background technique [0002] Endoscopes have always been a common means of in vivo diagnosis and treatment. Traditional single-channel (monocular) endoscopes cannot obtain image depth information through stereoscopic imaging, which brings inconvenience to doctors for accurate diagnosis and limits surgical robot systems. development of. The dual-channel endoscope can output two two-dimensional endoscopic images that conform to a certain spatial geometric relationship at the same time, which can be directly observed by binoculars, or can provide users with three-dimensional images with distance information through post-image processing. image. This information-rich imaging method not only gives doctors an intuitive three-dimensional sense, but also eases the workload of users, improves the accuracy of detection and diagnosis, and also...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B1/05
CPCA61B1/055A61B1/00131A61B1/00195A61B1/012
Inventor 王慧泉赵喆王金海
Owner TIANJIN POLYTECHNIC UNIV
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