We have the handles inside the theatre so that they can't be opened from the outside. The doors are all interlocked so if someone opens them they get shouted at but don't suffer exposure to the laser beam. Part of our pre-laser checklist for each patient is "Blinds closed? Doors locked"
-----Original Message-----
From: British Medical Laser Association [mailto:[log in to unmask]] On Behalf Of Helen Amatiello
Sent: 07 January 2014 10:45
To: [log in to unmask]
Subject: Vistamatic blinds
Dear Mailbase
I wondered what fellow LPA's take on the use of Vistamatic blinds were please?
These are sandblasted frosted glass panels that seem to be very popular for use in theatres and other locations.
I have made some rudimentary transmission checks on samples and they seem to have ~80% transmission in 280 to 800nm range that we are able to test. I do not think that this takes any account of any diffusion of the source that the sandblasting may have though.
Do LPA's use these in their locations? And if so, are other control measures put in place?
Many thanks for your responses in advance,
regards
Helen Amatiello
Clinical Scientist/Radiation Protection Adviser
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