Thin film electrodes for sensing cardiac depolarization signals
First Claim
1. A data collection system implemented with a medical device for recording electrocardiographic data, the system comprising:
- an hermetically sealed case; and
a plurality of subcutaneous thin film electrodes forming an array mounted on a surface of a feedthrough and signal processing circuitry inside the case coupled with the electrodes via the feedthrough assembly in contact with amplifiers in a microprocessor circuitry.
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Accused Products
Abstract
A subcutaneous electrode is structured to acquire electrocardiographic data and waveform tracings from an implanted pacemaker without the need for or use of surface (skin) electrodes. Thin film electrodes disposed on a top surface of a feedthrough are adapted to connect into an assembly at the peripheral edge of the implantable device. Each of the electrodes comprise an integral element of a subcutaneous electrode array or SEA which detects cardiac depolarizations that are communicable and displayable by a portable device programmer. The thin film electrode is a complete functional component with a hermetically attached weld ring adapted for direct welding into the implanted device casing. The distribution and dispersion of the electrodes around the perimeter of the pacemaker provide a maximum and equidistance setting of electrode pairs for either three or four preferred electrode configurations.
71 Citations
15 Claims
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1. A data collection system implemented with a medical device for recording electrocardiographic data, the system comprising:
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an hermetically sealed case; and
a plurality of subcutaneous thin film electrodes forming an array mounted on a surface of a feedthrough and signal processing circuitry inside the case coupled with the electrodes via the feedthrough assembly in contact with amplifiers in a microprocessor circuitry. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of attaching a thin film electrode on a feedthrough, the method comprising:
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forming a slightly flattened perimeter on a hermetically sealed case surface; and
depositing the thin film electrodes on the feedthrough and welding to the case. - View Dependent Claims (10, 11, 12, 13, 15)
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14. A data collection system implemented with a medical device for recording electrocardiographic data including a thin film electrode scheme distributed about the perimeter of a hermetically sealed case, the electrode scheme in combination, comprising:
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a hermetically sealed case; and
a plurality of subcutaneous thin film electrodes forming a distributed array spaced apart to optimally cover and receive signals from all directions and connected to signal processing circuitry inside the case coupled with the electrode via a feedthrough assembly in operable electrical contact with amplifiers in a microprocessor circuitry.
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Specification