Implantable medical device for measuring ventricular pressure
First Claim
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1. An implantable medical device comprising:
- a pressure sensor adapted to be positioned in the right ventricle of a heart, for measuring right ventricular pressure and for generating a pressure signal corresponding to the measured right ventricular pressure;
a timing unit supplied with said pressure signal which determines, from said pressure signal, diastolic timing signals identifying a beginning and an end of a diastolic phase of the heart; and
a signal processor connected to the timing unit and also supplied with said pressure signal, said signal processor, using said diastolic timing signals, determining from said pressure signal a diastolic pressure signal representing right ventricular pressure only during the entire diastolic phase of the heart cycle defined by said beginning and said end.
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Abstract
An implantable medical device has a pressure sensing arrangement to measure right ventricular pressure of a heart including a pressure sensor adapted to be positioned in the right ventricle of the heart, to measure the pressure and to generate a pressure signal in response to the measured pressure. The pressure sensing arrangement also has a pressure signal processor and a timing unit. The processor determines from the pressure signal, using diastolic timing signals from the timing unit based on the pressure signal identifying the diastolic phase, a diastolic pressure signal representing the ventricular pressure only during the diastolic phase of the heart cycle.
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Citations
8 Claims
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1. An implantable medical device comprising:
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a pressure sensor adapted to be positioned in the right ventricle of a heart, for measuring right ventricular pressure and for generating a pressure signal corresponding to the measured right ventricular pressure;
a timing unit supplied with said pressure signal which determines, from said pressure signal, diastolic timing signals identifying a beginning and an end of a diastolic phase of the heart; and
a signal processor connected to the timing unit and also supplied with said pressure signal, said signal processor, using said diastolic timing signals, determining from said pressure signal a diastolic pressure signal representing right ventricular pressure only during the entire diastolic phase of the heart cycle defined by said beginning and said end. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification