Temperature controlled pharmaceutical storage device with alarm detection and indication means
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United States of America Patent
Stats
-
Jun 8, 1993
Grant Date -
N/A
app pub date -
Nov 5, 1991
filing date -
Nov 5, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A temperature-controlled pharmaceutical device includes a substantially enclosed and thermally insulated structure having at least one port which allows access to an enclosed storage area which has a storage temperature. A thermopile heat exchange unit is provided for heating and cooling the storage area in response to signals provided by temperature sensors and a window detector. The storage area is maintained at a temperature between upper and lower predetermined limits. When these limits are exceeded for a predetermined length of time, a visual display is actuated to warn that the substances should be discarded immediately. After signaling an alarm, the indicator is reset by way of a lock switch. The lock switch discourages unauthorized resetting. An energy saving switching mechanism is provided for overriding the heat exchanger circuitry when the port to the enclosed area is open, preventing unnecessary discharge of the battery pack. A drainage plate is provided in the lower region of the storage area to separate condensate and moisture from the articles stored in the storage device. The electronics, battery pack, and heat exchange unit are modular and designed to be quickly and easily decoupled from the storage device.
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