Blood Pressure and Cardiac Monitoring System and Method Thereof

Abstract

A blood pressure and cardiac monitoring system includes a sensing assembly, processor, memory, communication interface, and any suitable computer implemented modules communicatively coupled to each other via a bus. The sensing assembly comprises a first, second, and third sensor. The first sensor is located at a first axis of a target generating a first time-dependent motion waveform representative of one or more contractile properties of the target's heart, and the second sensor is located at a second axis of the target generating a second time dependent motion waveform representative of the target's blood flow. The processor is configured to receive the first waveform and the second waveform, and to determine a first time difference between a vital sign present in the first waveform and the second waveform. The third sensor is located either at the first or the second axis of the target generating a third time dependent waveform representative of the electrical potential due to the depolarization of heart muscle. At least one of the sensors may be configured to either remove motion artifacts (as a reference sensor) or detect attributes from the environment for providing context awareness information.

What is claimed is: 
     
         1 . A blood pressure and cardiac monitoring system comprising:
 a sensing assembly comprising:
 a first accelerometer located at a first axis of a target generating a first time-dependent motion waveform representative of one or more contractile properties of the target's heart; and 
 a second accelerometer located at a second axis of the target generating a second time dependent motion waveform representative of the target's blood flow; and 
   a processor configured to receive the first time dependent motion waveform and the second time dependent motion waveform, and to determine:   a first time difference between a vital sign present in the first time dependent motion waveform and the second time dependent motion waveform.   
     
     
         2 . The blood pressure and cardiac monitoring system of  claim 1  further comprising at least one of a memory and a communication interface. 
     
     
         3 . The blood pressure and cardiac monitoring system of  claim 1  further comprising a third sensor located either at the first or the second axis of the target generating a third time dependent waveform representative of the electrical potential due to the depolarization of heart muscle. 
     
     
         4 . The blood pressure and cardiac monitoring system of  claim 1  wherein the system is integrated into a client device and the processor is disposed in the client device. 
     
     
         5 . The blood pressure and cardiac monitoring system of  claim 1  wherein the system is integrated into a client device and the processor is disposed in the system. 
     
     
         6 . The blood pressure and cardiac monitoring system of  claim 1  wherein the system is a cloud computing device. 
     
     
         7 . The blood pressure and cardiac monitoring system of  claim 1  wherein the system is communicatively coupled to at least one of a client device, a server, and a network. 
     
     
         8 . The blood pressure and cardiac monitoring system of  claim 3  wherein the third sensor is selected from a group consisting of an accelerometer, a motion sensor, an optical sensor, a transducer, a Doppler ultrasonic transducer, an acoustic sensor, an electrode, an ECG sensor, a sonar sensor, a thermal sensor, an environmental sensor, and a target orientation sensor. 
     
     
         9 . A sensing assembly for monitoring vital signs comprising:
 a first sensor located at a first axis of a target generating a first time-dependent motion waveform representative of one or more contractile properties of the target's heart; and   a second sensor located at a second axis of the target generating a second time dependent motion waveform representative of the target's blood flow; and   a processor configured to receive the first time dependent motion waveform and the second time dependent motion waveform, and to determine:   a first time difference between a vital sign present in the first time dependent motion waveform and the second time dependent motion waveform.   
     
     
         10 . The sensing assembly of  claim 9  further comprising a third sensor located either at the first or the second axis of the target generating a third time dependent waveform representative of the electrical potential due to the depolarization of heart muscle. 
     
     
         11 . The sensing assembly of  claim 9  wherein the assembly is integrated into a client device and the processor is disposed in the client device. 
     
     
         12 . The sensing assembly of  claim 9  wherein the assembly is a cloud computing device. 
     
     
         13 . The sensing assembly of  claim 9  wherein the assembly is communicatively coupled to at least one of a client device, a server, and a network. 
     
     
         14 . The sensing assembly of  claim 10  wherein the sensor is selected from a group consisting of an accelerometer, a motion sensor, an optical sensor, a transducer, a Doppler ultrasonic transducer, an acoustic sensor, an electrode, an ECG sensor, a sonar sensor, a thermal sensor, an environmental sensor, and a target orientation sensor.