Patent application number | Description | Published |
20080235058 | VITAL SIGN MONITOR UTILIZING HISTORIC PATIENT DATA - A vital sign monitoring system that can be used with multiple patients and utilizes historic patient data information for the patient to optimize the process of obtaining current vital sign measurements. Each patient is identified with a unique patient identification device that is automatically detected by the vital sign monitor. The vital sign monitor communicates with a medical records database and obtains historic patient data information and previously diagnosed characteristics for the patient identified by the patient identification device. The historic patient data information and previously diagnosed characteristics of the patient can be utilized by the vital sign monitor to set alarm limits for the vital sign measurements and automatically adjust the blood pressure estimation algorithm of the NIBP monitor. | 09-25-2008 |
20080243009 | METHOD OF CONTROLLING INFLATION OF A CUFF IN BLOOD PRESSURE DETERMINATION - The present application discloses a method of calculating an initial inflation pressure during a blood pressure determination using an NIB system. The cuff provided with the system is inflated towards a default initial inflation pressure and a plurality of oscillometric pulses are obtained during inflation. A quick systolic pressure is estimated from a pre-defined function having a physiologically- expected shape of an oscillometric envelope fitted to oscillometric data obtained during the inflation. In an embodiment, the parameters within the function are specifically found by fitting a plurality of oscillometric pulse amplitudes along with their corresponding cuff pressures obtained during inflation to the pre-defined function. The cuff is inflated up to a calculated initial inflation pressure, which is found from the estimated quick systolic pressure. After the cuff is brought to the initial inflation pressure, deflation is begun for determining the actual systolic and diastolic pressures for output to a user. | 10-02-2008 |
20090062663 | NON-INVASIVE BLOOD PRESSURE MONITOR APPARATUS AND SYSTEM - A non-invasive blood pressure monitoring system is disclosed herein. The non-invasive blood pressure monitoring system includes a pressure cuff comprising a resistive portion and a conductive portion aligned with the resistive portion. The non-invasive blood pressure monitoring system also includes a controller operatively connected to the pressure cuff. The controller is adapted to estimate the circumference of the pressure cuff based on the position of the conductive portion relative to the resistive portion. | 03-05-2009 |
20090099466 | METHOD AND SYSTEM FOR AUTOMATIC CUFF TYPE DETERMINATION - A method for identifying a non-invasive blood pressure cuff type is disclosed herein. The method includes inflating a cuff and obtaining a first pressure measurement in a non-invasive blood pressure system while inflating the cuff. The method also includes obtaining a second pressure measurement in the non-invasive blood pressure system while inflating the cuff and identifying a cuff type based on the first pressure measurement and the second pressure measurement. A corresponding blood pressure monitoring system is also provided. | 04-16-2009 |
20090221924 | METHOD AND SYSTEM FOR NON-INVASIVE BLOOD PRESSURE DETERMINATION - A method for non-invasively estimating blood pressure is disclosed herein. The method includes inflating a cuff and collecting first oscillation amplitude data at a first plurality of cuff pressure levels while inflating the cuff. The method also includes deflating the cuff and collecting second oscillation amplitude data at a second plurality of cuff pressure levels while deflating the cuff. The method also includes fitting a curve to the first oscillation amplitude data and to the second oscillation amplitude data and estimating a blood pressure parameter based on the curve. A non-invasive blood pressure system is also disclosed. | 09-03-2009 |
20090318828 | SYSTEM AND METHOD FOR A NON-INVASIVE BLOOD PRESSURE MONITOR - A non-invasive blood pressure system is disclosed herein. The non-invasive blood pressure system includes a pressure transducer configured to obtain pressure data comprising a transient baseline effects component. The non-invasive blood pressure system also includes a processor adapted to receive the pressure data from the pressure transducer. The processor is configured to generate a transient baseline effects model, and to implement the transient baseline effects model to at least partially remove the transient baseline effects component of the pressure data. The removal of the transient baseline effects component from the pressure data eliminates a potential source of error and thereby enables a more accurate blood pressure estimate. | 12-24-2009 |
20090326392 | METHOD AND SYSTEM FOR NON-INVASIVE BLOOD PRESSURE ESTIMATION - A method for non-invasively estimating blood pressure is disclosed herein. The method includes inflating a cuff and collecting first oscillation amplitude data at a first plurality of cuff pressure levels while inflating the cuff. The method includes identifying an artifact in the first oscillation amplitude data. The method includes identifying a specific cuff pressure level where the artifact occurs and deflating the cuff to the specific cuff pressure level. The method includes collecting second oscillation amplitude data at the specific cuff pressure level and estimating a blood pressure parameter based on both the first oscillation amplitude data and the second oscillation amplitude data. A non-invasive blood pressure system is also disclosed. | 12-31-2009 |
20100063367 | VITAL SIGN MONITOR UTILIZING HISTORIC PATIENT DATA - A vital sign monitoring system that can be used with multiple patients and utilizes historic patient data information for the patient to optimize the process of obtaining current vital sign measurements. Each patient is identified with a unique patient identification device that is automatically detected by the vital sign monitor. The vital sign monitor communicates with a medical records database and obtains historic patient data information for the patient identified by the patient identification device. The historic patient data information can be utilized by the vital sign monitor to set alarm limits for the vital sign measurements and automatically control the operation of an NIBP monitor for the specific patient. | 03-11-2010 |
20100174202 | METHOD AND SYSTEM FOR COMBINING OSCILLOMETRIC BLOOD PRESSURE ENVELOPE DATA OBTAINED FROM DIFFERENT SIGNAL PROCESSING PATHS - A blood pressure measurement system that utilizes a non-invasive blood pressure (NIBP) monitor having a blood pressure cuff and pressure transducer. The measurement system provides a plurality of separate processing techniques that each receive a plurality of oscillometric waveform sample values generated using the pressure transducer. Each of the processing techniques separately generates a set of envelope points based upon the oscillometric data values. The sets of envelope points are appropriately scaled such that the sets of scaled envelope points are combined with each other to create a set of combined, scaled envelope points. Various different methods can be used to scale the sets of envelope points prior to the combination of the scaled envelope points. Based upon the combination of scaled envelope points, the blood pressure is calculated and displayed by the NIBP monitor. | 07-08-2010 |
20100249614 | SYSTEM AND METHOD FOR A NON-INVASIVE BLOOD PRESSURE MEASUREMENT - A method of measuring blood pressure of a patient is provided. The method comprises inflating a blood pressure cuff to a user selectable target pressure and subsequently further inflating or deflating the blood pressure cuff in a stepwise manner by a predetermined pressure amount. At each pressure step in a first sequence of alternate steps of cuff pressure variation, the occurrence of at least two successive oscillometric pulses with matching pulse amplitude and other possible matching criteria is identified. The blood pressure cuff is inflated following the identification. Further a single oscillometric pulse is obtained at each pressure step in a second sequence of alternate steps of cuff pressure variation. The pattern of inflating, obtaining two matching oscillometric pulses, inflating, and obtaining a single oscillometric pulse is repeated until sufficient oscillometric envelope information is obtained for determining one or more blood pressure parameters of the patient. | 09-30-2010 |
20110152650 | ADAPTIVE PUMP CONTROL DURING NON-INVASIVE BLOOD PRESSURE MEASUREMENT - A method of operating a non-invasive blood pressure (NIBP) monitor having a blood pressure cuff. During operation of the NIBP monitor, the blood pressure cuff is initially inflated at a rapid inflation rate. Once the blood pressure cuff reaches a first pressure, the inflation rate of the blood pressure cuff is reduced from the rapid inflation rate to a measurement inflation rate. The blood pressure cuff continues to inflate at the measurement inflation rate while the NIBP monitor receives signals from the patient. Based upon the signals received from the patient, the controller of the NIBP monitor calculates an initial inflation pressure. The blood pressure cuff is inflated to the calculated initial inflation pressure and inflation is terminated. In this manner, signals received from the patient during inflation are used to calculate the initial inflation pressure to reduce the amount of time required to make a blood pressure measurement. | 06-23-2011 |