Surgical lights are designed to operate for prolonged periods without excessive heat radiation. For ceiling-mounted lights, one or more transformers are placed either above the finished ceiling or in a wall-mounted remote control box to convert incoming line voltage to the lower voltage necessary for most lights.
Conventional lights were usually gas-filled incandescent lamps containing a certain proportion of halogen in an inert gas with a pressure of more than 3 atmospheres (atm). Some gas-discharge xenon-halogen lamps emit light by passing an electrical current through a gas. LED surgical lights consist of pods or modules, which are small semiconductors that emit a narrow spectrum of light when the electrical circuit is activated.
What are surgical lights and why does a surgical setting need them?
Surgical lights provide illumination in surgical suites and are designed to illuminate the surgical site for optimum visualization of small, low-contrast objects at varying depths of incisions and body cavities. The setup consists of a single or multiple light head mounting on the suspension arm.
The surgical lights may either be installed on a ceiling or wall at a set point or positioned along a wood-mounted road. Types of lamps include tungsten, quartz, and/or xenon halogens and light-emitting diodes (LEDs). Sterilizable handles allow the surgeon to easily change the location of the light. Many models can be fitted with a mounted camera, and some of the newer models contain an integrated camera. Integrating the operating room (OR) infrastructure and control system may be possible.
Types of surgical lights
Halogen Surgical Lights
In the middle of an enclosure containing halogen gas, the halogen lights utilize the tungsten sheet. By going through the filament electricity, it lights up the incandescent bulb used as outdoor floodlights and in many homes like its distant relative. The more electricity is put into the filament, the brighter – and whiter – the bulb burns. The brighter the light, the more heat the halogen bulb generates.
The cost of buying halogen bulbs is usually much lower than their LED counterparts. During their life cycle, halogen bulbs are easy to discard. These can be put in the trash along with the day-to-day waste of an organization. Fine wires in glass manufacturing are difficult to separate, resulting in high and often prohibitive recycling costs.
LED Surgical Lights
Many of the surgical lights have been focused on halogen bulbs in recent years. Recent technical advances have made LED (light-emitting diode) lights more available to surgical centers than ever before. LED technology has evolved from being purely high tech and innovative to have the ability to be part of everyday life in many operating rooms across the globe. LED technology is mounted on a single semiconductor inside either a glass or plastic housing.
Like a halogen bulb, the more electricity the LED receives, the brighter the light it produces. LED lights produce much whiter and cooler light than halogen lights. Such bright lights boost visibility and the cooler temperature helps to ensure that the surgical team is as comfortable as possible. This is particularly helpful during lengthy or otherwise stressful procedures, minimizing the risk of error or misdiagnosis. With LED lamps, the surgical team will be able to see truer skin pigmentation and better overall color while evaluating patients as they can operate within excellent natural light, shadow reduction, and deep-cavity illumination.
What factors are driving advancements and innovations in the surgical lights industry?
Surgical retina trends and innovations
The first vitrectomy was performed with an integrated endoilluminator in the vitrectomy probe. While halogen, mercury vapor, or metal halide light bulbs are used for the first generation of endoilluminators, modern endoilluminators use xenon or light-emitting diode (LED) light sources. They also substantially increased luminance through small gauging light probes and longer bulb life.
Increased lighting and spectral emission of xenon lights increase the likelihood of phototoxicity to the retina. To counter this, manufacturers have introduced low wavelength filters to block the blue and ultraviolet light that is most harmful to the retina. Additional filters are available to adjust the color of the light in order to enhance the visualization of different surgical circumstances. For example, amber light may minimize glare during the air-fluid exchange and improve contrast when peeling the internal limiting membrane with bright blue, whereas green light may be helpful when peeling under indocyanine green.
Innovations and advancements in the operating room
The operating rooms (ORs) are becoming smarter, more effective – and much less risky for patients. Hospitals are investing in innovative instruments, prototypes, and emerging technology that promise a new era in surgery innovation. Moves are part of an increasing move away from conventional open procedures involving large incisions, a lot of blood loss, and long hospitalizations.
Improved OR design and more effective logistics are being developed using a multidisciplinary approach, with strong collaboration between physicians, technologists, scientists, and industry. The OR is well-positioned as one of the key outlets for digitally activated healthcare services. Such high-tech spaces can be more than the environments which are already information-rich. As they combine data from various sources and incorporate a range of equipment including surgical tables and lighting, future ORs can operate in their own right as distinct medical devices.
An increasing number of surgical procedures
The life-cycle of the surgical light is measured in hours. Advanced LED surgical light supports an additional 40,000 hours to 60,000 hours of life. Growing numbers of medical, neurological, and dental operation operations are largely responsible for the longer-term use of surgical lights, which leads to a comparatively quicker substitution of these lamps in the operating rooms.
For example, according to figures from the European Union, an estimated 82,000 cataract surgeries were performed in Germany in 2016. The number is projected to double by 2020. This is expected to increase demand for new surgical lights and ultimately improve the growth of the operating lights industry during the forecast period. In addition, an exponential rise in the prevalence of chronic diseases, combined with a rise in per capita spending, is projected to increase the number of surgical procedures resulting in demand growth by 2026.
Hospitals focus on providing improved healthcare facilities and equipping hospitals with the latest equipment and technologies to improve healthcare services. These are significant factors that can drive growth in the surgical lights market. Supportive government policies and programs, such as tax and duty exemptions for imported medical systems and medications and discounted prices for hospital establishments, to boost the country's health facilities, are further contributing to the global market growth.
Free Valuable Insights: Global Surgical Lights Market to reach a market size of USD 3.6 billion by 2026
Advances will accelerate as lighting choices, illumination, and surgical tables in the ORs and medical profession become smarter. Every step forward places both the patient and the medical team in a healthy environment. Surgical lighting for hospitals, operating centers, and other services is very critical for the completion of surgical procedures and the comfort of the surgical team. One of the most essential aspects of the operating room is surgical lighting. Surgeons need to be able to see accurately – with clear visibility, sufficient brightness, minimal shadows, and no glare.