STIHLER ELECTRONIC ASTODIA DIA100, Instructions For Use Manual

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2 Product description ASTODIA Instructions for Use
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2 Product description
2.1 Introduction
The method of transillumination or Diaphanoscopy has been used in the field of
paediatrics and especially of neonatology for decades. It is used to identify a
pneumothorax or a hydrocele quickly and to visualize vessels in limbs during a
puncture. Until now, cold light sources with fibre-optical light cables have been
used for this purpose. Nowadays, however, the light emitting diodes (LED) are
more often applied. Because of its design, the ASTODIA is particularly suitable for
the patient-specific application on small premature babies.
2.2 Technical Description
ASTODIA consists of a control unit, a hand piece and a charger.
Its light in the visible spectrum (yellow/red) is used for the transillumination of thin
limbs (e.g. wrist joint) and for the quick identification of a pneumothorax or a hy-
drocele in the field of paediatrics/neonatology.
The extremely bright light of the used high-performance diodes is adjustable in 9
steps or infinitely variable. The special yellow coloured light visualizes the vessel
structures particularly well, as it is required for venipuncture. The red light en-
sures a continuous, extensive and deep transillumination, which is required for
visualizing the pneumothorax or for diagnosing the hydroceles.
The common interface on the control unit is designed for charging the integrated
batteries as well as for the electrical connection of the hand piece cable.
This avoids using and charging of the device at the same time. This way, the
charger, when it is charging the device, cannot be seen as a medical device in the
sense of the Medical Devices Directive provided the distance to the patient
(min. 1. 5 m) is kept.