Motion management in a fast blood pressure measurement device

A - Human Necessities – 61 – B

Patent

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A61B 5/0225 (2006.01)

Patent

CA 2532205

The invention is in one embodiment an apparatus and a method for measuring the blood pressure of a vertebrate subject. The apparatus uses an inflatable chamber with a sensor to detect signals indicative of a blood pressure of the subject during an inflation interval of the inflatable chamber. If secondary motion or artifact signals are detected, the apparatus and method determine whether the secondary signals are below a predetermined value, and if so, complete the measurement. If the signals indicate that the measurement is not accurate, the system and method immediately institute a measurement of the blood pressure during a deflation interval, which can include a step deflation interval. In the event that the subject is identified as a neonate, the system and method immediately measure using the deflation interval procedure.

Un premier mode de réalisation de l'invention concerne un dispositif et un procédé de mesure de la pression artérielle d'un sujet vertébré. Ce dispositif utilise un brassard pneumatique équipé d'un capteur pour détecter les signaux correspondant à la pression artérielle du sujet au cours d'un intervalle de gonflement du brassard pneumatique. Lorsqu'un mouvement secondaire ou des signaux artéfacts sont détectés, les dispositif et procédé de l'invention déterminent si les signaux secondaires se situent en-dessous d'une valeur prédéterminée, et, dans ce cas, la mesure se poursuit. Si les signaux indiquent que la mesure est imprécise, les dispositif et procédé entament immédiatement une mesure de la pression artérielle au cours d'un intervalle de dégonflement, ce dernier pouvant comporter au moins une phase de dégonflement. Si le sujet est un nouveau-né, ces système et procédé mesurent immédiatement la pression artérielle selon la procédure à intervalle de dégonflement.

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