Finn Chambers for epicutaneous patch testing
Finn Chamber® is a patch test device
which provides good occlusion because of the chamber design. The 8 mm inner diameter
provides a 50 mm2 area and about 20 µl volume. Finn Chambers are
available mounted on Scanpor® tape, Actavis Norway AS, Norgesplaster,
with protective paper backing which is easily peeled away. The chambers are made
of aluminium. Polypropylene coated chambers (8, 12, 18 mm) and 12 mm aluminium chambers
are available for special purposes.
Finn Chambers on Scanpor are available in strips of 10 (2x5), 5
(1x5) and 1 chambers. The strips of 10 chambers are practical when testing with
a large number of substances, e.g. with routine tests. Smaller strips are suitable
for small test series and individual tests.
Most commercial test substances are suitable for Finn Chambers. The substances incorporated
in a semisolid base are applied directly into the chamber. For liquids a filter
paper disc is placed in the chamber and saturated with the liquid.
Finn Chamber Tray keeps the test
strips in good order when applying the test substances. The trays are stackable,
which saves place on work surface.
The tests are applied preferably on the upper back. When removing
the tests after one or two days' exposure the occlusion is verified by a ring-shaped
depression around each test.
For locating the test sites a special device, Reading Plate, is
recommended. Reading Plate can also be used when removing the tests.
Indications for Finn Chambers
- Diagnosis of
- Experimental dermatology
Finn Chamber products are intended for use by or under the supervision of a physician.