Patent ID: 8211030
Filing Date: 2012-07-03
Classification: A61B

Abstract:
1. A method of monitoring blood pressure in a patient, the method comprising the steps of: providing a pulse monitor having a sensor operable to detect pulse signals due to the patient's heartbeat; positioning a blood pressure cuff on the patient; positioning the sensor on the patient distal to the blood pressure cuff to detect pulse signals from the patient; inflating the blood pressure cuff; calculating, using a central processor, a second derivative of the pulse signals during inflation of the blood pressure cuff, the second derivative including a series of acceleration pulse peaks; reducing low frequency variations in the pulse signals based on the calculated second derivative of the pulse signals; and terminating the inflation of the blood pressure cuff based upon the acceleration pulse peaks in the calculated second derivative of the pulse signals; and defining an initial target pressure after terminating the inflation of the blood pressure cuff.