Surgery – Truss – Pad
Patent
1995-04-27
1997-04-01
Sykes, Angela D.
Surgery
Truss
Pad
A61B 5021
Patent
active
056156847
ABSTRACT:
A device for detecting hemodynamic conditions in a heart, in particular conditions corresponding to dangerous arrhythmias contains a sensing unit for a physiological variable, such as blood pressure, the unit emitting a signal on the basis of the variable having an average value, a signal conditioning unit connected to the sensing unit, a calculation unit connected to the signal conditioning unit and a comparator after the calculation unit. The calculation unit is devised to calculate a variability measure relative to the signal's average value, the variability measure being correlated to average blood pressure, and the variability measure is compared in the comparator to an adjustable threshold value corresponding to a specific hemodynamic condition, whereupon the comparator emits an indication signal when the variability measure falls below the threshold value.
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patent: 5265617 (1993-11-01), Verrier et al.
patent: 5289823 (1994-03-01), Eckerle
patent: 5316004 (1994-05-01), Chesney et al.
patent: 5368040 (1994-11-01), Carney
Hagel Pia
Hoegnelid Kurt
Noren Kjell
Gilbert Samuel
Pacesetter AB
Sykes Angela D.
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