Reagent Chamber; Reaction Chamber; Plunger Assembly - Medtronic ACT Plus Benutzerhandbuch

ACT_CH.fm 6/23/04 1:23 pm
UC200304151c ML
5.5" x 7.75" (139.7 mm x 196.85 mm)

Reagent Chamber

The reagent chamber is the bottom section of the cartridge. It contains the activator
and other reagents, which initiate and contribute to the activation of clotting. The
reagent chamber is enclosed on the top by the "daisy." The "daisy" is attached to
the bottom portion of the plunger assembly and is seated in the diaphragm. The
bottom of the reagent chamber consists of a flexible plug.

Reaction Chamber

The reaction chamber is located above the reagent chamber. The test sample is
introduced into the reaction chamber. When the test is initiated, the plunger
assembly is lifted and the bottom plug of the reagent chamber is pushed up,
delivering the contents of the reagent chamber into the reaction chamber. This
action also mixes the reagents with the test sample.

Plunger Assembly

The plunger assembly consists of two distinct parts: the "daisy" and main body of
the assembly, which includes the "flag."
Daisy: The "daisy" provides the upper seal for the reagent chamber and is the
mechanical sensing element for the formation of a clot. As the plunger rises and
falls, the "daisy" moves up and down through the test sample/reagent mixture. Clot
formation impedes the movement of the "daisy" through the sample.
8 English
86702-001 Rev 1.0
Flag
Plunger
Reaction Chamber
Daisy
Reagent Chamber
Bottom Plug
Figure 1. Test Cartridge
ACT Plus™ Operator's Manual
Medtronic Confidential
CS010