SYSTEMS AND METHODS FOR MONITORING COOLING OF SKIN AND TISSUE TO IDENTIFY FREEZE EVENTS
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United States of America Patent
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Issued Date -
Nov 3, 2016
app pub date -
Apr 27, 2016
filing date -
Apr 28, 2015
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Abstract
A system and method of detecting, evaluating, monitoring events during the removal of heat from tissue beneath skin. The system utilizes an adaptive filter to determine if a partial freeze event is occurring, and performs an action based on the determination. In some examples, the system shuts off the treatment device, alerts an operator, reduces the cooling, and/or limits an amount of further cooling, in response to a determined treatment event. The system further applies a plurality of algorithms to detected signals in parallel to arrive at a plurality of estimates of whether a freeze event is occurring and confidences associated with the estimates. The estimates are used to evaluate whether the freeze event is in fact occurring.
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