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1. Remove the shrink band, cap and release paper
from the face of each DAC connector. |
The Disposable Aseptic Connector (DAC) is supplied to OEM
customers fully assembled, non-sterile, and packaged in
bulk quantities. In a typical application, the DAC is assembled
to the tubing by the bag manufacturer through the use of
the hose barb, and the complete unit is sterilized by Gamma
radiation, prior to sale. The sterility of the fluid path
is maintained by the removable (rolling) membrane, which
is folded back upon itself and adhesively held in place
over the sterile sealing surface (gasket) by a release paper
and a dust cover.
In the operation sequence (figure 1), the shrink band,
dust cap, and the release paper are removed from the face
of the connector, revealing a fully adhesive surface. The
connector (figure 2) is then held facing an opposing connector
with hook and slots of each unit on top. Each unit is then
tilted to approximately 60 degrees (figure 3), the hook
and slot of each unit are joined, and the units rotated
down into position until the perimeter latches are engaged
(figure 4). This technique forces proper alignment of the
two units prior to engagement of the perimeter latches.
The adhesive faces of each DAC are now in contact, and the
gaskets are pressured toward each other. The inner surface
and fluid path are now sealed against any outside, environmental
conditions. The rolling membranes, of both connectors become
one unit as a result of the alignment and the contact of
their adhesive surfaces. By bringing the tabs together and
pulling down on the tabs, the rolling membranes are removed
(figure 5). The removal of the membranes exposes the inner
sterile surface of one connector to the inner sterile surface
of the other, all within the sealed micro environment created
in figure 4. The membrane removal also exposes the sterile
silicone gasket surfaces and the sterile fluid pathways.
The membranes, once removed, can be discarded (figure 5).
The application of a standard sanitary clamp (figure 6)
completes the union and produces a permanent, high-pressure
connection.
For complete instructions and information on DAC Operation,
request "Instructions for Use" and "Theory
of Operation" from the Contact
Page.
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