Endoscope lens welding technology: improve the precision and safety of medical equipment
With the continuous progress of medical technology, endoscopic technology is increasingly widely used in medical diagnosis and treatment, especially in the field of minimally invasive surgery. As an important medical device, the precision and stability of the lens of endoscope are very important. The welding technology of lens directly affects the performance of equipment and the safety of patients. Therefore, the welding technology of endoscope lens is not only a key link in the manufacturing of medical devices, but also plays a decisive role in the quality of the entire endoscope equipment.
1、 Basic principle of endoscope lens welding technology
Endoscopic lens is usually composed of multiple optical elements, including lens, optical fiber, sensor, lens shell, etc. In order to ensure its stability and high-precision imaging effect, the lens needs high-precision assembly and welding. The key of welding technology is to ensure the accurate docking of each component, and ensure the optical performance and mechanical strength of the lens. Common welding methods include laser welding, hot pressing welding and spot welding.
Laser welding technology
Laser welding is widely used in the manufacturing of endoscope lens, mainly because it can provide very high precision and controllability. Laser welding heats the two materials to the melting point and combines them at high temperature by focusing the laser beam, which can complete the high-strength connection in a very small welding area. Laser welding is especially suitable for welding micro components, which can effectively avoid damage caused by overheating.
Hot pressing welding technology
Hot press welding is usually used to weld the contact surface between the endoscope lens housing and the optical element. This technology relies on high temperature heating and pressure to make the material soft at high temperature, and then combines the two into a complete part through pressure. Hot press welding can provide good sealing and strength, and is commonly used for welding most lens housings.
Spot welding technology
Spot welding technology is mainly used for welding metal parts in lens components, such as metal optical fiber connectors. Spot welding technology realizes the local melting and bonding of metal through the high temperature generated by the current between two contact points. Its advantages are fast welding speed, high efficiency, and suitable for large-scale production.
2、 Challenge and Development of Endoscope Lens Welding Technology
With the increasing demand for the precision of the endoscope lens, the welding technology is facing increasing challenges. First of all, the size of the endoscope lens is getting smaller and smaller, and the requirements for precision are getting higher and higher. It is inevitable that thermal damage will occur to the optical elements during the welding process. Therefore, the temperature control of welding technology and the accurate positioning of welding area are particularly important. Secondly, the endoscope lens uses a wide range of materials, including glass, metal and plastic. The welding process and requirements of each material are different. How to select a suitable welding method has become the focus of technical research.
In order to meet these challenges, many enterprises and research institutions are constantly exploring new welding technologies. For example, the laser micro welding technology emerging in recent years can carry out high-precision welding at a lower temperature by precisely controlling the laser power and irradiation time. In addition, some new welding materials and equipment are also widely used in the production of endoscope lens to improve the welding quality and stability.
3、 Application Prospect of Endoscope Lens Welding Technology
With the increasing demand for high-precision endoscope equipment in the medical industry, the application prospect of endoscope lens welding technology is very broad. First, in minimally invasive surgery, the accuracy and stability of the endoscope lens directly affect the success rate of surgery and the recovery speed of patients. By continuously improving the welding technology, the optical performance of the endoscope lens can be improved to provide clearer and more stable images. Secondly, with the development of intelligent medical equipment, endoscope equipment is increasingly combined with artificial intelligence, robot technology and other technologies. Precision welding technology also provides technical support for the efficient operation of these equipment.
4、 Conclusion
Endoscopic lens welding technology, as the core technology in endoscopic equipment manufacturing, is directly related to the quality of medical equipment and the safety of patients. With the continuous development of technology, welding technology plays an increasingly important role in improving equipment accuracy, improving production efficiency and reducing costs. Through continuous improvement of welding process and innovation of welding technology, the endoscope equipment in the future will be more precise and reliable, making greater contributions to the global medical and health cause.