Implantable cardiac monitor upgradeable to pacemaker or cardiac resynchronization device
First Claim
1. A system, comprising:
- an implantable cardiac rhythm management (CRM) device including;
a device body encapsulating a CRM circuit upgradeable from a monitoring circuit to a pacing circuit after the implantation of the implantable CRM device and including a sensing circuit adapted to sense an electrogram, the CRM circuit configured to operate as the monitoring circuit and the pacing circuit at different times, the pacing circuit configured to be inactive when the CRM circuit is configured to be the monitoring circuit and capable of producing pacing pulses when the CRM circuit is configured to be the pacing circuit, the sensing circuit having a set of cutoff frequencies for filtering the sensed electrogram, the set of cutoff frequencies programmed to be a first set of values and a second set of values at the different times, the first set of values suitable for far-field electrogram sensing, the second set of values suitable for intracardiac electrogram sensing and different from the first set of values; and
a header attached to the device body, the header including at least one connector providing for electrical connection to the CRM circuit; and
an implantable adaptor adapted to be connected to the header, the implantable adaptor including a first electrode adapted to sense a far-field electrogram.
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Accused Products
Abstract
An implantable cardiac monitor upgradeable to an implantable pacemaker or an implantable cardiac resynchronization device allows the use of a single implantable medical device for monitoring cardiac conditions and later, if needed, for cardiac pacing. The implantable medical device includes a circuit that can be configured, by programming through an external programmer, to either the implantable cardiac monitor or the implantable pacemaker. The implantable medical device is first configured to and used as the implantable cardiac monitor for acquisition of physiological data indicative of a need for a pacing therapy. If the pacing therapy is to follow, the implantable medical device is reconfigured from the implantable cardiac monitor to the implantable pacemaker, thus eliminating the need of using two implantable medical devices.
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Citations
17 Claims
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1. A system, comprising:
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an implantable cardiac rhythm management (CRM) device including; a device body encapsulating a CRM circuit upgradeable from a monitoring circuit to a pacing circuit after the implantation of the implantable CRM device and including a sensing circuit adapted to sense an electrogram, the CRM circuit configured to operate as the monitoring circuit and the pacing circuit at different times, the pacing circuit configured to be inactive when the CRM circuit is configured to be the monitoring circuit and capable of producing pacing pulses when the CRM circuit is configured to be the pacing circuit, the sensing circuit having a set of cutoff frequencies for filtering the sensed electrogram, the set of cutoff frequencies programmed to be a first set of values and a second set of values at the different times, the first set of values suitable for far-field electrogram sensing, the second set of values suitable for intracardiac electrogram sensing and different from the first set of values; and a header attached to the device body, the header including at least one connector providing for electrical connection to the CRM circuit; and an implantable adaptor adapted to be connected to the header, the implantable adaptor including a first electrode adapted to sense a far-field electrogram. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification