Design Consideration For LED Based Surgical Luminaires

Scriptie/Masterproef: Doctoral Thesis

Samenvatting

In March 2012, UZ Jette has announced that they will expand their surgical
facility. During this Ph.D. research project, an innovative light and
ventilation concept has been developed to reduce post-operative infections. The system is currently patent-pending. When a patient undergoes surgery, there is still a chance between 1% and 4% that he or she will develop a post-operative infection. Besides pain and
discomfort, these infections can lead to hospital re- admission, additional
surgical procedures or even death of the patient. Also, these infections lead to increased costs for the patient and health care. One of the measures to reduce the infection rate is the ventilation system which refreshes the air in the operating room. In modern operating rooms, a ”laminar downflow” is
installed. Such a laminar downflow system provides clean, cooled air, that
descends on the patient from the plenum. However, this laminar flow is
perturbed by the surgical luminaire, thus causing turbulent air flows.
Post-operative infections may originate as airborne pathogenic particles from outside the protective zone enter the surgical site by these turbulent air flows.
To reduce or even eliminate this disturbance of the laminar airflow by the
surgical lighting, we propose an integrated concept of an LED-based and
automated light source, mounted above a ventilation chamber. This
integrated system needs to be as effective as state-of-the-art surgical
luminaires. The technological know-how needed to build surgical luminaires, is not described in literature. Instead, this knowledge is part of the intellectual property of the companies that produce them. Therefore, this thesis first develops different tools that are needed to design adequate surgical lighting: both photometric and spectroscopic aspects are taken into account. Using this knowledge, an innovative and patent-pending lighting system is then proposed which will improve patient safety during surgery.
Datum prijs23 jun 2016
Originele taalEnglish
Prijsuitreikende instantie
  • Vrije Universiteit Brussel
  • KU Leuven
BegeleiderPatrick Rombauts (Promotor), Peter Hanselaer (Promotor) & Wouter Ryckaert (Co-promotor)

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