Koninklijke Philips Corporation N.v.

Hewlett-packard Company

Dieter Woehrle

Lars Schmitt

Erik Bresch

Teun Van Den Heuvel

Jens Muehlsteff

Maarten Petrus Joseph Kuenen

Paul Aelen

Jens Mühlsteff

According to an aspect there is provided an inflation apparatus () for use with an inflation-based non-invasive blood pressure, NIBP, measurement apparatus, the inflation apparatus comprising: an outlet () configured to be coupled to a cuff of the inflation-based NIBP measurement apparatus; a pump () configured to output a flow of gas at an output flow rate; a valve () disposed along a flow path between the pump and the outlet to selectively pass part of the flow of gas output by the pump; and a control unit () configured to control the flow resistance of the valve to provide a flow of gas to the outlet at a required flow rate for inflating the cuff.

Inflation apparatus for an inflation-based non-invasive blood pressure monitor and a method of operating the same

According to an aspect there is provided an inflation apparatus () for use in an inflation-based non-invasive blood pressure, NIBP, measurement apparatus, the inflation apparatus comprising: an outlet () configured to be coupled to a cuff of the inflation-based NIBP measurement apparatus; a plurality of pumps () each configured to output a flow of gas to the outlet; and a control unit () configured to enable at least one of the plurality of pumps to output a flow of gas to the outlet based on a required flow rate to inflate the cuff and/or to control a flow rate of at least one of the plurality of pumps to output a flow of gas to the outlet based on a required flow rate to inflate the cuff.

According to an aspect, there is provided a method of operating a non-invasive blood pressure, NIBP, monitor to measure the blood pressure of a subject, the NIBP monitor comprising a cuff, a pressure sensor for measuring the pressure in the cuff and for outputting a pressure signal representing the pressure in the cuff and a physiological parameter sensor, the method comprising obtaining a first measurement of a physiological parameter for the subject during inflation of the cuff, the first measurement being obtained from the pressure signal; obtaining a second measurement of the physiological parameter for the subject during inflation of the cuff, the second measurement being obtained from the physiological parameter sensor; comparing the first measurement and the second measurement; and estimating the reliability of a blood pressure measurement obtained by the NIBP monitor during inflation of the cuff based on the result of the step of comparing.

Non-invasive blood pressure monitors and methods of operating the same

The present invention relates to an apparatus () for providing a control signal for a blood pressure measurement device, comprising: an input interface () for obtaining a health state parameter being indicative of a health state of a patient (); a processing unit () for determining one or more operation settings of a blood pressure measurement device () based on the health state parameter, said one or more operation settings including a parameter that can be adjusted at the blood pressure measurement device () when conducting a blood pressure measurement with the device and that affects a precision of said blood pressure measurement and a patient comfort resulting from said blood pressure measurement; and a control interface () for providing a control signal for a blood pressure measurement device () to perform a blood pressure measurement based on said one or more operation settings. The present invention further relates to a corresponding method. Still further, the present invention relates to a system for monitoring a patient.

Apparatus and method for providing a control signal for a blood pressure measurement device

Method of operating a non-invasive blood pressure, NIBP, monitor to measure the blood pressure of a subject, the NIBP monitor comprising a cuff, a pressure sensor for measuring the pressure in the cuff and for outputting a pressure signal representing the pressure in the cuff and a physiological parameter sensor, the method comprising obtaining a first measurement of pulse rate or heart rate for the subject during inflation of the cuff, the first measurement being obtained from the pressure signal; obtaining a second measurement of the pulse rate or heart rate for the subject during inflation of the cuff, the second measurement being obtained from the physiological parameter sensor; comparing the first measurement and the second measurement; and estimating the reliability of a blood pressure measurement obtained by the NIBP monitor during inflation of the cuff based on the result of the step of comparing.

Non-invasive blood pressure monitors, methods and computer program product of operating the same

The present invention relates to the field of non-invasive blood pressure (NIBP) monitoring systems and particularly to a system that allows the identification of other components of the system via coding elements that are readable without the need for placement of this system components to the body of a patient.

Non-invasive blood pressure monitoring systems

The invention concerns a method for controlling an alarm in a medical instrument or system, the medical instrument or system detecting at least one physiological parameter of the patient. The present value of the physiological parameter is consecutively detected and an alarm delay is determined as a function of at least one detected value of the physiological parameter wherein the function yields a shorter alarm delay for increasing values of the deviation from a normal value and a longer alarm delay for decreasing values of the deviation from the normal value. Further, the duration the value of the physiological parameter exceeds or under-runs at least one predefined threshold for the physiological parameter defining an upper or lower limit for a normal range of the physiological parameter, respectively, is measured and the alarm is generated when the duration the determined value of the physiological parameter exceeds or under-runs the predefined threshold exceeds the alarm delay. This method allows for the avoidance of nuisance alarms while still indicating severe conditions of the monitored patient reliably.

Controlling an alarm in a medical instrument

A pulse oximeter has several processing channels for measurement signals which are measured during the switched-on phase of transmission diodes and which are used to determine the oxygen saturation (SpO.sub.2) of a patient. An additional measurement channel processes an ambient light signal which was measured while the transmission diodes were switched off or their intensity modified, in the same way and thus provides a measure of the spectral composition of the ambient light interference. A useful-to-noise-signal ratio (NSV) is derived from the ambient light signal and a measurement signal, which represents a measure of the signal quality and which can be compared with threshold values (G), where an alarm is triggered if the value falls below the threshold values.

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Waiblingen, Germany

Dieter Woehrle