Process and a device for producing a transdermal therapeutic system for the administration of active substances to the skin in the form of a plane multichamber or multichamber-channel system
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United States of America Patent
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May 11, 1999
Grant Date -
N/A
app pub date -
May 2, 1996
filing date -
May 19, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In a process for the production of a transdermal therapeutic system for the administration of active substances to the skin in the form of a plane multichamber or multichamber-channel system an active substance-containing layer is introduced between top layer and bottom layer; subsequently top and bottom layer are squeezed at individual and/or coherent sites under displacement of the intermediary sites of the active substance-containing layer and formation of active substance-containing chambers or channels, and at the same time or after that top layer and bottom layer are bonded permanently at the squeezed places.
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