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SYSTEM AND METHOD FOR DETECTING VENOUS NEEDLE DISLODGEMENT
SYSTEM AND METHOD FOR DETECTING VENOUS NEEDLE DISLODGEMENT
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机译:检测静脉针脱臼的系统和方法
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摘要
In one aspect, a method and system for detecting a change in fluid dynamics of a fluid flowing through an extra-corporeal circuit is disclosed, which includes establishing an acoustic wave resonance across a transverse dimension of at least a portion of a line associated with the extra-corporeal circuit through which the fluid flows, monitoring a phase signal of the resonant acoustic wave, and identifying occurrence of a change in fluid dynamics of the flowing fluid when the observed phase signal of the resonant acoustic wave indicates a deviation from the expected fluid flow signature. The change in fluid dynamics can be used to indicate a venous needle dislodgement event.
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