Ischemia detector and heart stimulator provided with such an ischemia detector
First Claim
Patent Images
1. An ischemia detector, comprising a sensor unit which emits a signal representing systolic pressure of a subject, means for establishing a relation between said systolic pressure and a heart rate of a subject over a plurality of varying heart rates, and analyzer means for determining an occurrence of ischemia from said relation.
1 Assignment
0 Petitions
Accused Products
Abstract
An ischemia detector has a sensor unit which determines the systolic pressure of a subject, a unit wherein a relation is established between the systolic pressure and the subject'"'"'s heart rate, as the heart rate is varied over a range, and an analyzer which determines the occurrence of ischemia from this relation.
184 Citations
23 Claims
- 1. An ischemia detector, comprising a sensor unit which emits a signal representing systolic pressure of a subject, means for establishing a relation between said systolic pressure and a heart rate of a subject over a plurality of varying heart rates, and analyzer means for determining an occurrence of ischemia from said relation.
- 9. An ischemia detector comprising a sensor unit which determines a pressure difference between an end systolic pressure and an end diastolic pressure of a subject, means for establishing a relation between said pressure difference a heart rate of a subject when over a plurality of heart rates, and analyzer means for determining an occurrence of ischemia from said relation.
-
12. A heart stimulator comprising:
-
a pulse generator which emits stimulation pulses at a stimulation rate;
an electrode lead connected to said pulse generator and adapted for in vivo implantation in a subject to deliver said stimulation pulses to cardiac tissue, said electrode lead having at least one electrode adapted for contact with cardiac tissue;
means for operating said stimulation generator to vary said pulse rate over a plurality of stimulation rates; and
an ischemia detector comprising a sensor unit which emits a signal representing systolic pressure of a subject receiving said stimulation pulses, means for establishing a relation between said systolic pressure and a heart rate of a subject over a plurality of heart rates represented by said plurality of stimulation rates, and analyzer means for determining an occurrence of ischemia from said relation. - View Dependent Claims (13, 14, 15, 16, 17)
-
-
18. A heart stimulator comprising:
-
a pulse generator which emits stimulation pulses at a stimulation rate;
an electrode lead connected to said pulse generator and adapted for in vivo implantation in a subject to deliver said stimulation pulses to cardiac tissue, said electrode lead having at least one electrode adapted for contact with cardiac tissue;
means for operating said stimulation generator to vary said pulse rate over a plurality of stimulation rates; and
an ischemia detector comprising a sensor unit which determines a pressure difference between an end systolic pressure and an end diastolic pressure of a subject, means for establishing a relation between said pressure difference and a heart rate of a subject over a plurality of heart rates represented by said plurality of rates rates, and analyzer means for determining an occurrence of ischemia from said relation. - View Dependent Claims (19, 20, 21, 22, 23)
-
Specification