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The working principle and technology trend of Endoscope Camera System

Released on Jan. 12, 2021

The endoscope camera system generally consists of an image processing host and a camera. It is used in the operating room of a medical institution and is connected with an optical endoscope during endoscopic diagnosis or treatment, so that the endoscope can observe the field of view of the human body cavity. The images are collected, processed, stored and transmitted to the display. Doctors can clearly view images from all angles, and grasp the judgment of the operation process in real time. Let's take a look at the working principles and technical trends of the endoscope camera system.

The working principle of the endoscopic camera system

The endoscope camera is connected to the endoscope through an optical interface, and converts the optical signal collected by the endoscope into a digital signal, which is input to the image processing host, and then processed by the image processing host and output to the display for display.

Imaging principle

The light emitted by the light source is transmitted to the human body through the main body of the endoscope through the transmission beam (optical fiber), and illuminates the part of the internal cavity tissue to be inspected. The objective lens images the part to be inspected on the area array CCD, which is controlled by the CCD drive circuit Capture images and output standard video signals. The adjustment mechanism is used to adjust the observation angle of the front end of the endoscope, which can be adjusted up and down, left and right, and rotated.

The key components of the endoscopic camera system are the image processing host and the endoscopic camera.

The image processing host is the control center of the entire camera system and is used to process the surgical video and images captured from the camera. The front panel of the image processing host is mainly composed of power button, camera interface, USB interface, white balance button, etc. The rear panel is mainly various video output interfaces and control interfaces, such as monitor, keyboard, mouse, etc.

The endoscope camera is mainly used for video and image collection. It converts the image signal collected by the endoscope into an electrical signal through a sensor, and then transmits it to the image processing host through a cable for processing.

Endoscope camera system has been widely used in various departments, clinically commonly used in otolaryngology, urology, gynecology, ophthalmology, orthopedics, neurosurgery, medical aesthetics and plastic surgery and other departments, suitable for otoscope, sinusoscope, nasopharyngoscope , Laparoscopy, Hysteroscopy, Arthroscopy, Foramoscope, Ureteroscopy, Fiberoptic bronchoscopy and other fields of endoscopy.

Technology Trend of Endoscope Camera System

At present, the endoscope camera system is mainly developed in the direction of multi-function and high image quality. For example, noise reduction technology and edge enhancement technology are added in image processing technology; the image sensor is developed from CCD (charge coupled device) to CMOS (semiconductor device); Now the mainstream endoscopic camera system is 1080P (HD). With the maturity of imaging devices and display devices, the endoscopic camera system will develop from 2D and HD imaging to 3D imaging and 4K imaging. In the future, it will be 4K Ultra HD. The home field of the speculum camera system.

Endoscope Camera System