Electrocardiograph and blood pressure signals simulator

• US 8,650,415 B2
• Filed: 02/04/2011
• Issued: 02/11/2014
• Est. Priority Date: 08/22/2006
• Status: Active Grant

• Current Assignee: Pronk Technologies Inc.
• Original Assignee: Pronk Technologies Inc.
• Inventors: Ruiter, Karl
• Primary Examiner(s): Stoynov, Stefan
• Application Number:
  US13/021,483
• Publication Number:
  US 20110131022A1
• Time in Patent Office: 1,103 Days
• Field of Search: 713/300, 600/485, 600/500, 702/98, 702/138, 703/6, 703/11, 708/270
• US Class Current: 713/300
• CPC Class Codes: A61B 5/021 Measuring pressure in heart or blood vessels A61B5/0205 takes precedence
• CPC Class Codes: A61B 5/319 Circuits for simulating ECG signals
• CPC Class Codes: G16H 50/50 for simulation or modelling of medical disorders

Abstract

System, methods, and apparatuses produce simulated human physiological waveforms such as electrocardiograph (ECG) and blood pressure signals where the microcontroller and/or digital-to-analog converters may be switched to a lower power-consuming state by programmable instructions and switched on in response to a programmable sleep timer.

Claims

1. A physiological waveform simulator comprising:

a microcontroller writing a physiological waveform value to a digital-to-analog converter (DAC) wherein the DAC has a reference voltage; and

wherein a positive supply voltage to the physiological waveform simulator is drawn from a monitor excitation signal and a negative supply voltage to the physiological waveform simulator is drawn from an output of a charge pump inverter driven by the monitor excitation signal.

2. The physiological waveform simulator of claim 1 wherein the monitor excitation signal is rectified.