As a sophisticated medical examination device, the core function of the endoscope is inseparable from the coordinated work of various precision accessories. These accessories not only enhance the diagnostic capabilities of the endoscope, but also expand its scope of application. Understanding the working principles of these accessories is essential for the correct use and maintenance of the endoscope.
First of all, the core components of the endoscope are the objective lens and eyepiece system. The objective lens is located at the front end of the endoscope and is responsible for focusing the image in the body and transmitting it to the internal optical channel. The eyepiece is located at the operator's end and is usually equipped with an eyepiece cover or connected to a monitor for easy observation by the doctor. The optical system between the objective lens and the eyepiece ensures the clarity of the image and the accuracy of the viewing angle through a series of lenses and prisms.
The fiber optic system is another key accessory of the endoscope, which is responsible for transmitting the light generated by the cold light source to the front end of the endoscope to illuminate the inspection area. Modern endoscopes usually use solid-state LED light sources, which are not only bright, but also have a long life and can provide continuous and stable lighting.
Image sensors and transmission systems play an important role in electronic endoscopes. High-resolution CCD or CMOS sensors capture images in the body and transmit them to a display via cables or wirelessly for doctors to observe and record in real time. Digital image transmission not only improves image quality, but also facilitates subsequent image analysis and storage.
In addition, the control part of the endoscope includes an insertion tube, a bend, and an operating handle. The insertion tube is soft and strong enough to enter the human body smoothly. The bend is driven by a steel wire or a motor to achieve multi-directional movement, making it easy to reach hard-to-reach areas. The operating handle provides an interface for doctors to accurately control the movement of the endoscope.
The precise coordination of these accessories enables endoscopes to play an important role in diagnosis and treatment, providing patients with more accurate medical services.