IMPLANTABLE MEDICAL DEVICE
First Claim
1. An implantable medical device comprising:
- a coronary perfusion measurement unit adapted to measure and determine parameters related to coronary perfusion of heart tissue, the parameters including time periods and perfusion magnitudes, wherein the coronary perfusion measurement unit is configured to determine a time period T related to a perfusion event of a coronary vessel and includes a reperfusion time period, wherein the perfusion event is defined as a decrease of coronary perfusion followed by reperfusion, and wherein the coronary perfusion measurement unit is configured to generate a time period signal in dependence thereto; and
a coronary flow calculation unit adapted to receive the time period signal and adapted to process the time period and generate an ischemia risk indicating index I in dependence of the time period.
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Accused Products
Abstract
An implantable medical device comprising a coronary perfusion measurement unit is adapted to measure and determine parameters related to coronary perfusion of heart tissue. The parameters include time periods and perfusion magnitudes. The coronary perfusion measurement unit is configured to determine a time period T related to a perfusion event of a coronary vessel and including includes a reperfusion time period, where a perfusion event is defined as a decrease of coronary perfusion followed by reperfusion, and to generate a time period signal in dependence thereto. The implantable medical device further comprises a coronary flow calculation unit that is adapted to receive the time period signal and that is adapted to process the time period and to generate an ischemia risk indicating index I in dependence of the time period.
4 Citations
31 Claims
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1. An implantable medical device comprising:
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a coronary perfusion measurement unit adapted to measure and determine parameters related to coronary perfusion of heart tissue, the parameters including time periods and perfusion magnitudes, wherein the coronary perfusion measurement unit is configured to determine a time period T related to a perfusion event of a coronary vessel and includes a reperfusion time period, wherein the perfusion event is defined as a decrease of coronary perfusion followed by reperfusion, and wherein the coronary perfusion measurement unit is configured to generate a time period signal in dependence thereto; and a coronary flow calculation unit adapted to receive the time period signal and adapted to process the time period and generate an ischemia risk indicating index I in dependence of the time period. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A method to determine an ischemia risk, comprising:
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A) measuring and determining parameters related to coronary perfusion of heart tissue, the parameters include time periods and perfusion magnitudes; B) determining a time period T related to a perfusion event of a coronary vessel and including a reperfusion time period, where the perfusion event is defined as a decrease of coronary perfusion followed by reperfusion, C) generating a time period signal in dependence of the determined time period T; D) processing the time period T and generating an ischemia risk indicating index I in dependence of the time period. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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Specification