Active Implantable medical Devices, Notably for Pacing, Resynchronization, Defibrillation And/Or Cardioversion, Having Improved Diagnosis Of the Patient's Clinical Status
First Claim
1. An active implantable medical device of the pacing, resynchronization, defibrillation and/or cardioversion type, or an active implant intended to diagnose a cardiac rhythm disorder, comprising:
- means for measuring a predominantly physiologic corporal parameter and providing a physiologic signal representative thereof;
means for measuring a predominantly physical corporal parameter and providing a physical signal representative thereof;
means for discriminating a status of a patient as one of a phase of rest and a phase of activity, operating in response to said physiologic and physical signals, and for providing an index corresponding to the patient status;
means for analysis, responsive to the physiologic signal, the physical signal and the status index, and for memorizing the obtained results on the form of a data history;
wherein said means for analysis further comprise;
first means for establishing characteristics providing, for successive dates, representative values over a given period of time, of;
the physical signal during activity phases of the patient, the physiologic signal during activity phases of the patient and/or the physiologic signal during rest phases of the patient, second means for searching for a plurality of remarkable dates for each of the characteristics thus obtained, third means for allocating specific indices of clinical status respective to each of the periods comprised between said remarkable dates for each of the characteristics thus obtained, and fourth means for combining into one composite index, said specific indices thus determined.
2 Assignments
0 Petitions
Accused Products
Abstract
An active implantable medical device, preferably a device for pacing, resynchronization, defibrillation and/or cardioversion of a patient, that includes functionality that assists in the diagnosis of the patient'"'"'s clinical status. This devices comprises circuits (10, 12) for measuring one physiologic parameter, preferably minute ventilation (VE), and circuits (14, 16) for measuring a physical parameter, preferably acceleration (G), control logic (18) for discriminating between activity and rest phases of the patient, and analysis circuits (20-28), to process and combine these signals and memorize (store in memory) the obtained results in the form of a data history. The analysis will establish characteristics providing, for successive dates, representative values, for a given period of time, of the physical signal and physiologic signal during activity phases of the patient, and/or of the physiologic signal during rest phases. These circuits search for remarkable dates for each of the characteristics and allocate specific indices of clinical status respective to each of the periods comprised between the remarkable dates, then combined the specific thus obtained into one single composite index.
-
Citations
12 Claims
-
1. An active implantable medical device of the pacing, resynchronization, defibrillation and/or cardioversion type, or an active implant intended to diagnose a cardiac rhythm disorder, comprising:
-
means for measuring a predominantly physiologic corporal parameter and providing a physiologic signal representative thereof;
means for measuring a predominantly physical corporal parameter and providing a physical signal representative thereof;
means for discriminating a status of a patient as one of a phase of rest and a phase of activity, operating in response to said physiologic and physical signals, and for providing an index corresponding to the patient status;
means for analysis, responsive to the physiologic signal, the physical signal and the status index, and for memorizing the obtained results on the form of a data history;
wherein said means for analysis further comprise;
first means for establishing characteristics providing, for successive dates, representative values over a given period of time, of;
the physical signal during activity phases of the patient, the physiologic signal during activity phases of the patient and/or the physiologic signal during rest phases of the patient, second means for searching for a plurality of remarkable dates for each of the characteristics thus obtained, third means for allocating specific indices of clinical status respective to each of the periods comprised between said remarkable dates for each of the characteristics thus obtained, and fourth means for combining into one composite index, said specific indices thus determined. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
Specification