Fault tolerant methods and architectures for embedded intelligence in medical leads
First Claim
1. An implantable medical system, comprising:
- an electrode;
a medical electrical lead coupled to the electrode, including a physiological waveform interpreter (PWI) module having;
a data collection unit coupled to the electrode and configured to receive an electrical signal of a physiological signal sensed by the electrode; and
a reporting unit coupled to the data collection unit configured to generate a predetermined minimal impact signal that is indicative of the physiological signal in response to the sensed signal, the minimal impact signal having a different electrical property from the sensed signal; and
a medical device coupled to the lead including a lead monitoring circuit for receiving the minimal impact signal and processing the signal to determine whether a lead-related condition associated with the lead is present.
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Accused Products
Abstract
The present disclosure pertains to methods, devices and systems for detection of a lead-related condition in a medical electrical lead. In accordance with the disclosure, a physiological waveform interpreter module embedded within the lead functions to sense the occurrence of a cardiac event and to generate a minimal impact signal. In an example implementation, the physiological waveform interpreter module is disposed proximate to the sensing site or vicinity of cardiac signals. The physiological waveform interpreter module transmits the minimal impact signal that may include one or more predetermined properties to a remotely located lead monitoring module upon sensing a cardiac event. The lead monitoring module receives and processes the minimal impact signal to determine whether a cardiac depolarization has occurred and simultaneously verify the integrity of the transmission medium.
61 Citations
18 Claims
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1. An implantable medical system, comprising:
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an electrode; a medical electrical lead coupled to the electrode, including a physiological waveform interpreter (PWI) module having; a data collection unit coupled to the electrode and configured to receive an electrical signal of a physiological signal sensed by the electrode; and a reporting unit coupled to the data collection unit configured to generate a predetermined minimal impact signal that is indicative of the physiological signal in response to the sensed signal, the minimal impact signal having a different electrical property from the sensed signal; and a medical device coupled to the lead including a lead monitoring circuit for receiving the minimal impact signal and processing the signal to determine whether a lead-related condition associated with the lead is present. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An implantable medical electrical lead, comprising:
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a lead body; an electrical conductor disposed within the lead; a physiological waveform interpreter (PWI) module coupled to the electrical conductor, the PWI module including; a data source for monitoring electrical signals indicative of a physiological event; and a reporting unit configured to generate a minimal impact signal that is indicative of the physiological event in response to sensing a physiological event, the minimal impact signal having at least one electrical property that is different from the monitored electrical signals. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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Specification