NON-INVASIVE DEVICE FOR SYNCHRONIZING CHEST COMPRESSION AND VENTILATION PARAMETERS TO RESIDUAL MYOCARDIAL ACTIVITY DURING CARDIOPULMONARY RESUSCITATION
First Claim
1. A system to treat a patient having a heart and a chest, the system comprising:
- a least one sensor monitoring cardiac activity in the patient by detecting at least one of myocardial pump activity, myocardial mechanical activity, hemodynamics and organ perfusion;
a logic controller receiving signals and executing an algorithm stored in a non-transitory memory accessible by the logic controller which causes the system;
determine whether the patient is in a pulseless electrical activity (PEA) condition;
in response to the determination that the patient is in the PEA condition, determine a pattern of myocardial motion or residual pulsatile blood flow occurring in the patient during the PEA condition and based on the received signals; and
in response to the determined pattern and during the PEA condition, generating a command to repeatedly apply a phasic therapy to the patient, wherein the command causes or prompts the application of the phasic therapy repeatedly and in synchrony with the pattern of the actual myocardial motion or the pulsatile blood flow.
3 Assignments
0 Petitions
Accused Products
Abstract
A system for improving cardiac output of a patient suffering from pulseless electrical activity or shock and yet displays myocardial wall motion including: a sensor to detect myocardial activity to determine the presence of residual left ventricular pump function having a contraction or ejection phase and a filling or relaxation phase, a device to prompt the application of or apply a compressive force repeatedly applied to the chest based on the sensed myocardial activity such that the compressive force is applied during at least some of the ejection phases and is ceased during at least some of the relaxation phases to permit residual cardiac filling, thereby enhancing cardiac output and organ perfusion.
3 Citations
30 Claims
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1. A system to treat a patient having a heart and a chest, the system comprising:
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a least one sensor monitoring cardiac activity in the patient by detecting at least one of myocardial pump activity, myocardial mechanical activity, hemodynamics and organ perfusion; a logic controller receiving signals and executing an algorithm stored in a non-transitory memory accessible by the logic controller which causes the system; determine whether the patient is in a pulseless electrical activity (PEA) condition; in response to the determination that the patient is in the PEA condition, determine a pattern of myocardial motion or residual pulsatile blood flow occurring in the patient during the PEA condition and based on the received signals; and in response to the determined pattern and during the PEA condition, generating a command to repeatedly apply a phasic therapy to the patient, wherein the command causes or prompts the application of the phasic therapy repeatedly and in synchrony with the pattern of the actual myocardial motion or the pulsatile blood flow. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A system to treat a patient having a heart and a chest, the system comprising:
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a least one sensor monitoring cardiac activity in the patient by detecting at least one of myocardial pump activity, myocardial mechanical activity, hemodynamics and organ perfusion; a logic controller receiving signals and executing an algorithm stored in a non-transitory memory accessible by the logic controller which causes the system to; determine whether the patient is in a pulseless electrical activity (PEA) condition; in response to the determination that the patient is in the PEA condition, determine a natural rate myocardial activity in the patient during the PEA condition and without the application of any phasic therapies, and the determination is based on the received signals; and after determining the natural rate, generating a command to repeatedly apply a phasic therapy to the patient, wherein the command causes or prompts the application of a phasic therapy at a rate different than the sensed natural rate of myocardial activity. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26)
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27. A system to treat a patient having a heart and a chest, the system comprising:
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a least one sensor monitoring cardiac activity in the patient by detecting at least one of myocardial activity and pulsatile blood flow; a logic controller receiving signals from the at least one sensor and generating control commands for controlling one or more phasic therapies and synchronizing the one or more phasic therapies with the monitored cardiac activity in the patient; and wherein the logic controller executes an algorithm stored in memory associated with the logic controller, wherein the algorithm causes the logic controller to generate commands to vary patterns of the application of the one or more phasic therapies, and determine one of the patterns of phasic therapies corresponding to a certain level of at myocardial activity or pulsatile blood flow. - View Dependent Claims (28)
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29. A system to treat a patient having a heart and a chest, the system comprising:
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a least one sensor monitoring cardiac activity in the patient by detecting at least one of myocardial pump activity, myocardial mechanical activity, hemodynamics and organ perfusion; a logic controller executes an algorithm stored in a non-transitory memory accessible by the logic controller which causes the logic controller to; determine whether the patient is in a pulseless electrical activity (PEA) condition; monitor cardiac activity in the patient by detecting with the at least one sensor at least one of myocardial pump activity, myocardial mechanical activity, hemodynamics and organ perfusion; receive the signals from the at least one sensor and, based on the signals, synchronize one or more phasic therapies cyclically applied to the patient; varying the cyclical application of one or more of the phasic therapies; detect changes in at least one of the sensed myocardial pump activity, myocardial mechanical activity, hemodynamics and organ perfusion due to the variations in the cyclical application of the one or more phasic therapies; and determine at least one of the variations of the phasic therapies corresponding to a desired level of at least one of sensed myocardial pump activity, myocardial mechanical activity, hemodynamics and organ perfusion hemodynamics and organ perfusion. - View Dependent Claims (30)
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Specification