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Device For Determining the Transition Between Systole and Diastole

  • US 20080167562A1
  • Filed: 05/17/2005
  • Published: 07/10/2008
  • Est. Priority Date: 05/17/2004
  • Status: Active Grant
First Claim
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1. Device for determining the transition between systole and diastole within a pulse cycle, having an input channel (1) for reading in a pressure signal that can change over time and at least approximately corresponds to the aorta pressure of a patient, as a function of the time P(t), and a calculation unit that has differentiation means for forming the second derivation y″

  • from the function P(t), as well as evaluation means for determining a location of maximal curvature of the function P(t) in a determination range between the maximal and the minimal function value of the pulse cycle as the location of the transition between systole and diastole.

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