Electrical cardiac assist for an implantable syncope monitor
First Claim
1. An implantable device for recording electrical activity within a heart wherein the device includes electrical cardiac output forcing back up, the device comprising:
- power supply means;
detection means connected to the power supply means;
means to communicatively connect the power supply means and the detection means to a patient'"'"'s heart;
memory means operably connected to the detection means for recording electrical activity data of the patient'"'"'s heart upon the occurrence of a first predetermined condition; and
output control means connected to the detection means and to the power supply means and to the means to communicatively connect for delivering an electrical cardiac output forcing signal to the patient'"'"'s heart upon the occurrence of a second predetermined condition.
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Accused Products
Abstract
A method and apparatus for monitoring syncope, and having available for use an electrical cardiac output forcing (ECOF) back up. An implantable device, including an ECOF back up, for recording the electrical activity within a human heart is provided. The device includes a power supply for operating the device and for providing the necessary output forcing signals. A monitoring or detection device is provided connected to the power supply. Electrodes are provided to electrically connect the power supply and the detection device to a patient'"'"'s heart. A memory device is also provided connected to the detection device for recording electrical activity and/or blood pressure data of the patient'"'"'s heart. The memory device may be comprised of a short term loop buffer for continuously recording the electrical data from the patient'"'"'s heart and a long term storage buffer. The short term loop may be of a desired size, for example, capable of storing from 1-30 minutes of data before overriding occurs. Upon the occurrence of a predetermined event, for example, a bout of syncope, the data in the short term loop buffer is transferred to the long term storage buffer. An output control circuit is also provided which is connected to the detection device and to the power supply and to the electrodes. Upon the occurrence of a second predetermined event, such as fibrillation of the heart, the output control circuit causes the delivery of an electrical cardiac output forcing signal to the patient'"'"'s heart.
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Citations
37 Claims
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1. An implantable device for recording electrical activity within a heart wherein the device includes electrical cardiac output forcing back up, the device comprising:
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power supply means;
detection means connected to the power supply means;
means to communicatively connect the power supply means and the detection means to a patient'"'"'s heart;
memory means operably connected to the detection means for recording electrical activity data of the patient'"'"'s heart upon the occurrence of a first predetermined condition; and
output control means connected to the detection means and to the power supply means and to the means to communicatively connect for delivering an electrical cardiac output forcing signal to the patient'"'"'s heart upon the occurrence of a second predetermined condition. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 17, 18, 19, 20, 21, 22, 23, 36)
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14. An implantable device for recording electrical activity within a heart wherein the device includes electrical cardiac output forcing back up, the device comprising:
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power supply means;
detection means connected to the power supply means;
means to communicatively connect the power supply means and the detection means to a patient'"'"'s heart;
memory means operably connected to the detection means for continuously recording electrical activity data of the patient'"'"'s heart; and
output control means connected to the detection means and to the power supply means and to the means to communicatively connect for delivering an electrical cardiac output forcing signal to the patient'"'"'s heart upon the detection of fibrillation. - View Dependent Claims (15, 16, 24)
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25. An implantable cardiac device comprising:
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an ECG detector having a continuous ECG recorder; and
an electrical cardiac output forcing stimulator connected to the ECG detector actuable upon the occurrence of an abnormal sinus rhythm.
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26. An implantable cardiac device comprising:
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an ECG detector having an ECG recorder actuable upon the occurrence of a first predetermined cardiac event; and
an electrical cardiac output forcing stimulator connected to the ECG detector actuable upon the occurrence of a second predetermined cardiac event.
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27. A method of monitoring syncope in an implantable device having ECOF back up through electrodes connected to a power source, the method including the steps of:
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monitoring a patient'"'"'s heart data;
continuously recording the monitored data in a revolving buffer;
transferring the recorded data from the revolving buffer to a long term storage buffer upon the occurrence of a first event; and
discharging energy from the power source across the electrodes for electrical cardiac output forcing of the heart upon the occurrence of a second event. - View Dependent Claims (28, 29, 30, 31, 32, 33)
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34. A method for maintaining cardiac equilibrium comprising;
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internally monitoring a cardiac rhythm;
recording the cardiac rhythm upon the occurrence of a first predetermined cardiac event; and
electrically forcing cardiac output upon the occurrence of a second predetermined cardiac event.
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35. A method for maintaining cardiac equilibrium comprising:
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internally monitoring and recording cardiac rhythm continuously; and
electrically forcing cardiac output upon the occurrence of an abnormal sinus rhythm. - View Dependent Claims (37)
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Specification