Encapsulated microelectronic heart monitor
First Claim
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1. A self-contained device for mounting on the heart during surgery for monitoring the electrical activity of the heart during cardioplegic arrest, comprising:
- plunge electrode means for mounting said device on the heart and picking up potentials from the heart;
power supply means;
microvoltage signal amplification means for amplifying potentials picked up by said plunge electrode; and
display means responsive to said amplification means for indicating the presence of said potentials.
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Abstract
Self-contained, micro-electronic heart monitor for mounting on or near the heart during surgery, to monitor the electrical activity of the heart during cardioplegic arrest by picking up and amplifying electrical signals from the heart and displaying an output when the signal exceeds a threshold level.
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Citations
13 Claims
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1. A self-contained device for mounting on the heart during surgery for monitoring the electrical activity of the heart during cardioplegic arrest, comprising:
- plunge electrode means for mounting said device on the heart and picking up potentials from the heart;
power supply means;
microvoltage signal amplification means for amplifying potentials picked up by said plunge electrode; and
display means responsive to said amplification means for indicating the presence of said potentials. - View Dependent Claims (2, 3, 4, 5, 6)
- plunge electrode means for mounting said device on the heart and picking up potentials from the heart;
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7. A self-contained device for mounting near the heart during surgery for monitoring the electrical activity of the heart during cardioplegic arrest, comprising:
- plunge electrode means for picking up voltages from the heart;
power supply means;
microvoltage signal amplification means for amplifying potentials picked up by said plunge electrode;
display means responsive to said amplification means for indicating the presence of said potentials; and
flexible connecting means electrically connecting the plunge electrode to the microvoltage signal amplification means, which flexible connecting means is configured so as to maintain induced voltages at a level of at least two orders of magnitude lower than the myocardial potentials being monitored. - View Dependent Claims (8, 9, 10, 11, 12, 13)
- plunge electrode means for picking up voltages from the heart;
Specification