Application of laser soldering technology in medical device production

        The manufacturing process of medical devices is a complex and multi-stage process involving multiple links from design to the final product. It is generally divided into five steps: from "product design" to "raw material preparation" to "parts processing" and "assembly and debugging", and finally after the completion of assembly, the product is packaged, usually including finishing, cleaning and labeling. Subsequently, through sampling inspection and functional testing and other methods to ensure that the production of medical devices meet the relevant standards and requirements. In the "parts processing" this link requires a precise, sterile, stable manufacturing process, and laser soldering technology has the advantages of non-contact, miniaturized welding, automatic control, and so on, to meet the strict requirements of the industry.

       The special needs of the medical device industry for welding technology

       Medical device products are usually used in human or biological samples, so the welding process puts forward the requirements of high precision, low thermal damage and no pollution. For medical device components such as surgical instruments, implants, and precision sensors, traditional welding methods can cause thermal damage or produce small particle contamination, affecting product performance and even leading to device failure. Therefore, laser soldering technology, with its high precision and clean processing method, has become an ideal technology to meet the needs of medical device welding.

      Typical applications in medical devices

       1. Implantable medical device welding: Implantable medical devices such as cardiac pacemakers, insulin pumps, etc., need to work stably for a long time, and their packaging and welding require extremely high sealing and corrosion resistance. The laser soldering technology of Songsheng Optoelectronics enables high-strength, non-destructive packaging and welding, ensuring the safe and long-term operation of the equipment in the body.

      2. Connection and welding of micro sensors and testing equipment: A variety of micro sensors (such as temperature, pressure, flow sensors, etc.) are commonly used in medical devices, and laser soldering technology performs well in the welding needs of the micron level, ensuring the precise connection of sensor components without damaging the core material.

     3. Microfluidic chip welding: microfluidic technology is widely used in the field of medical detection and analysis, and there are a large number of micro channels and structures inside the microfluidic chip. The laser soldering technology of Songsheng Optoelectronics can realize precise micro-welding, effectively avoid thermal damage and pollution, and ensure the efficiency and stability of microfluidic chips.

    4. High-end surgical instruments welding: High-end surgical instruments, such as microsurgical tools, endoscopes, etc., have high requirements for structural precision and welding strength. The laser soldering system of Songsheng Optoelectronics supports the precise control of tiny solder joints, ensuring the safety and durability of surgical instruments.

     Songsheng photoelectric laser constant temperature tin welding real-time temperature feedback system, CCD coaxial positioning system and 976/980nm constant temperature semiconductor laser; The original PID online temperature adjustment feedback system can effectively control the constant temperature solder, and has the characteristics of real-time and high-precision control of the temperature of the solder object to ensure the yield and precision of the solder. It is especially suitable for high-precision soldering processes that are sensitive to temperature, such as miniature speakers/motors, connectors, cameras, etc.

      Songsheng photoelectric constant temperature laser soldering system features

     1. Laser processing accuracy is high, spot diameter is minimum 0.1mm, can achieve micro-spacing mounting devices, Chip parts welding.

     2. Short time local heating, minimal thermal impact on the substrate and peripheral components, according to the type of medical device lead to implement different heating specifications to obtain consistent welding quality.

    3. No soldering head consumption, no need to replace the heater, to achieve high efficiency continuous operation.

    4. Laser processing accuracy is high, laser spot can reach the micron level, processing time/power program control, processing accuracy is much higher than the traditional soldering iron. It can be welded in a space of less than 1mm.

   5. A variety of optical path coaxial, CCD positioning, what you see is what you get, no need to repeatedly correct visual positioning.

   6. Non-contact processing, no stress caused by contact welding, no static electricity.

   7. Laser is green energy, the cleanest processing method, no consumables, simple maintenance, easy operation;

     Future application prospects in the medical device industry

       With the development of medical equipment technology, the requirements for welding processes will become more and more stringent. With advanced laser soldering technology, Wuhan Songsheng Optoelectronics provides reliable, accurate and efficient solutions for the medical device manufacturing field. In the manufacturing of implantable devices, micro-sensors, microfluidic chips, and high-end surgical instruments, the laser soldering systems of Songsheng Optoelectronics show their unique advantages. In the future, Songsheng Optoelectronics plans to increase investment in the research and development of medical device welding technology, by improving the stability and accuracy of laser soldering equipment, to promote the high efficiency, bactericalization and high-quality production of medical equipment.