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Veinlite® Transillumination
Imaging of Superficial Veins
SIMPLY THE BEST VEIN IMAGING
SYSTEM ANYWHERE FOR SCLEROTHERAPY, VENOUS ACCESS AND ASSISTING
WITH INTRAVENOUS THERAPY
Shadow-Free Uniformity
with Side-Transillumination
A new method of transillumination, called side-transillumination*
is used in the Veinlite® for better visualization
of veins. This method is able to uniformly transilluminate
a small region of the skin so that much better imaging
of veins is achieved without shadows. Uniform transillumination
means that smaller veins can be seen with great clarity.
Side-transillumination method also allows for deeper penetration
of light into tissue for vein imaging up to 6 mm in depth
depending on the size of the vein.
Transillumination
and Skin Translucency
The side-transillumination* method shines light into the
skin from outside the field of view so that it is pointed
towards the center at a depth of approximately 2 cm. this
concentration of light creates a bright virtual light
source underneath the skin that moves with the Veinlite.
Uniform transillumination of the skin is achieved anywhere
on the body. The depth of visualization of veins is between
3 and 6 mm depending on the color of the light used.  The
shorter wavelength orange light travels up to 3 mm of
depth while the deeper red light can travel up to 6 mm
deep. Transillumination light frequencies are greatly
absorbed by deoxygenated hemoglobin in venous blood and
show up as dark areas in the skin.
Transillumination
Methods
Transillumination has been used for many years for imaging
subsurface veins and some structures. The classical method
of transillumination involves shining a light through
a part of the body and observing. A bright light is directed
into the skin and the area of interest is examined by
viewing the translucent region around the light. This
mode of transillumination is limited to objects that are
a couple of cm thick since light is absorbed in tissue.
The Venoscope device marketed for visualization of veins
uses two light sources to better image the veins. While
this device is better than a single light source, shadow
areas are created between the light sources due to non-uniform
illumination of the skin. The Veinlite, with its side-transillumination
method, creates the most uniform transillumination of
skin anywhere on the body.
Read
Veinlite article in "Journal für Lymphologie"
(View 284K PDF)
*Patent Number
5,146,923 - ® Registered trademarks of TransLite LLC
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