1. Operating Light Overview
1.1 Application
Surgical lights, also known as surgical lighting or operating lights, are mainly used in hospital operating rooms and ambulatory surgery centers, but can also be used in various locations throughout the facility to provide high quality lighting for procedures. To help doctors accurately and consistently assess and interpret tissue and vessel appearance.
1.2 Can operating light really eliminate shadows?
Usually, when light hits an opaque object, it creates a shadow. The darkest shadow in the middle is called the umbra, and the surrounding area that gradually becomes lighter is called the penumbra. The surgical light uses a circular plate that contains lights that emit light in all directions, which increases the light source area and makes the umbra shallower. The penumbra is so light that it cannot be seen, achieving a shadowless effect and allowing the operation to proceed smoothly.
1.3 Characteristics of operating light should have
① Shadow control, cold light, multi-reflective system design, make sure the surgical area is shade-free; Equipped with cold light filter and cold light reflector to minimize heat radiation.
② Lightweight structure, wide range of adjustment, stability, with removable light handle, operators can easily adjust the lighting needed for surgery by adjusting the light handle and central control panel.
③ The shape of lamp conforms to the requirements of laminar flow purification operating room, which ensures the convection circulation of purified air in operating room, and keeps the surgical area sterile.
④ Realistic light color, close to natural light. It's easy to identify the smallest differences in tissue and reduce eye strain for surgeons.
⑤ Reserve central camera system, for teaching, research and management purposes
1.4 Types of surgical light
① According to the type of light source, it can be divided into halogen operating light and LED operating light. The luminous principle of halogen lamp is the energy conversion of Electricity - Heat - Light. That is, heating after the electricity through the filament, then generate light. This light-emitting method has low efficiency and high temperature. LED lamp is a cold light source, it is a direct electro-optical conversion, low energy consumption, real cold light surgical lighting.
② According to the mounting method, it can be divided into ceiling mounted operating light, wall mounted operating light, mobile type operating light, etc.
③ According to the functional requirements, it can be divided into single head, double head and multi-head operating light, also operating light with camera system etc. Double head Operating light have become the first choice for most hospital operating rooms, One lamp head as the main light, providing the main illumination, Another light head as an auxiliary light to provide auxiliary lighting, to make up for the blind spot of the main light. In addition, it can also provide backup lighting in the first instance, when there is a problem with the main light.
1.5 Structure composition of surgical light
① Lamp head: Lamp head provides almost shadowless illumination directly to the operation area, or we can interpret it as a source of light. According to different working principles, manufacturers in the market have designed lamp heads in various shapes, some with other features. Therefore, it can be said that the lamp head is the core of operating light.
② Rotating arm is the part connecting the upper mounting fixture (lamp base) and the lower spring arm, includes the central axis and the rotating cross arm on the central axis, it can be rotated 360 degrees, greatly increasing the horizontal working area of the lamp.
③ Spring Arm: For balancing the lamp head, so that it can be positioned accurately at any designated location, increasing horizontal, up and down working area of the lamp head. Pull the spring arm and lamp head bend joint, can move up and down and axially rotate the lamp head at will. Push the disinfection handle to turn the lamp head, back and forth, left and right, adjust the lamp head to the desired position.
④ Installation fixing component (lamp base) is generally designed to the long suspension tube shape, A flange structure is connected at the end, the flange structure connects to a hidden part of the ceiling space. The other end of the suspension tube jutted from the ceiling and connected to the rotating arm. A circular cover is installed outside the ceiling to hide the structure inside.
