Friends who have experienced surgery, or who have seen the operating room scene in the film and television works, do not know whether they have noticed that there is always a group of bright headlights above the operating table, and the flat lampshade is embedded with a neat small light bulb. When it lights up, countless lights cross it, which makes people automatically think of space ships, or the galaxy hero legend and other science fiction full of pictures. And its name is also quite characteristic, called "operating shadowless lamp".
So, what is the operating shadowless lamp? Why would you use a lamp like this during surgery?
1 What is operating shadowless lamp?
The operating shadowless lamp, as the name suggests, is a kind of lighting equipment applicable to the operating room, which can minimize the shadow of the working area caused by the local occlusion of the operator, and is managed in accordance with the second type of medical equipment in our country.
Ordinary lighting equipment usually has only one light source, and the light travels in a straight line, shining on the opaque object, and forming a shadow behind the object. During surgery, the doctor's body and instruments, and even the tissues near the patient's surgical site may block the light source, casting a shadow on the surgical site, affecting the doctor's observation and judgment of the surgical site, which is not conducive to the safety and efficiency of surgery.
The operating shadowless lamp is to arrange a number of groups of lights with large luminous intensity on the lamp plate into a circle, to form a large area of light source, combined with the reflection of the lamp shade, from multiple angles to shine the light to the operating table, the light between different angles complement each other, reduce the shadow of the shade to nearly none, so as to ensure that the surgical field of vision has enough brightness. At the same time, it will not produce obvious shadow, thus achieving the effect of "no shadow".
2 Operating shadowless lamp development history
The operating shadowless lamp first appeared in the 1920s and began to be gradually promoted and applied in the 1930s. Early operating shadowless lamps are made of incandescent lamps and copper lampshades, limited by the technical limitations of the time, illuminance and focusing effects are more limited.
In the 1950s, the hole type multi-lamp type shadowless lamp gradually appeared, this type of shadowless lamp increased the number of light sources, with high purity aluminum to make a small reflector, improve the illuminance; However, due to the increase in the number of bulbs, the temperature generated by them also increases significantly. During long-term surgery, it is easy to cause dryness of the tissue at the surgical site and discomfort of the doctor, affecting the surgical effect. Until the early 1980s, the halogen light source of the cold-light hole lamp appeared, the problem of high temperature was improved.
In the early 1990s, the whole reflex operating lamp came out. This kind of operating shadowless lamp adopts computer-aided design technology to design the reflector surface. The reflector surface is formed by industrial stamping at one time to form a multilateral reflector, which greatly improves the lighting and focusing effect of the operating shadowless lamp.
It is worth mentioning that the two designs of the hole-type operating shadowless lamp and the overall reflective operating shadowless lamp have been used until now, but the light source of which has been gradually replaced by today's popular LED lights with the development of technology.
With the rapid development of digital technology, the function of the operating shadowless lamp has also taken a leap in recent decades.
Modern operating shadowless lamp combined with microcomputer numerical control technology, not only for the operation to provide uniform shadowless lighting, but also with brightness adjustment, color temperature adjustment, customizable configuration and storage of light mode, active shadow fill light, light dimming and other rich functions, easy to adapt to the deep cavity, superficial and other different types of surgery needs; Some even have built-in cameras and wireless network transmitters, and can be configured with a display screen, which is convenient for doctors to record surgical procedures, remote consultation or teaching.
3 Peroration
Correct surgical lighting is particularly important for the safety of patients and the comfort of medical staff, the emergence and continuous development of the operating shadowless lamp, greatly improve the quality and efficiency of surgery, but also reduce the consumption of doctors during surgery, for the realization of more complex, longer surgery to provide basic support.
Post time: Nov-23-2023
