Pace pulse detector for an implantable medical device
First Claim
1. An implantable medical device comprising:
- a sensing module configured to obtain an electrical signal produced by a patient'"'"'s heart;
a first pace pulse detector configured to analyze the sensed electrical signal to detect a first type of pulses having a first set of characteristics;
a second pace pulse detector configured to analyze the sensed electrical signal to detect a second type of pulses having a second set of characteristics different than the first set of characteristics;
one or more components configured to modify processing of the sensed electrical signal in response to detecting at least one of one of the first type of pulses or the second type of pulses;
a control module configured to detect a heart rhythm that is shockable based on the modified processing of the sensed electrical signals; and
a therapy module configured to deliver a shock to the patient'"'"'s heart in response to detecting the heart rhythm is shockable.
1 Assignment
0 Petitions
Accused Products
Abstract
In situations in which an implantable medical device (e.g., a subcutaneous ICD) is co-implanted with a leadless pacing device (LPD), it may be important that the subcutaneous ICD knows when the LPD is delivering pacing, such as anti-tachycardia pacing (ATP). Techniques are described herein for detecting, with the ICD and based on the sensed electrical signal, pacing pulses and adjusting operation to account for the detected pulses, e.g., blanking the sensed electrical signal or modifying a tachyarrhythmia detection algorithm. In one example, the ICD includes a first pace pulse detector configured to obtain a sensed electrical signal and analyze the sensed electrical signal to detect a first type of pulses having a first set of characteristics and a second pace pulse detector configured to obtain the sensed electrical signal and analyze the sensed electrical signal to detect a second type of pulses having a second set of characteristics.
217 Citations
21 Claims
-
1. An implantable medical device comprising:
-
a sensing module configured to obtain an electrical signal produced by a patient'"'"'s heart; a first pace pulse detector configured to analyze the sensed electrical signal to detect a first type of pulses having a first set of characteristics; a second pace pulse detector configured to analyze the sensed electrical signal to detect a second type of pulses having a second set of characteristics different than the first set of characteristics; one or more components configured to modify processing of the sensed electrical signal in response to detecting at least one of one of the first type of pulses or the second type of pulses; a control module configured to detect a heart rhythm that is shockable based on the modified processing of the sensed electrical signals; and a therapy module configured to deliver a shock to the patient'"'"'s heart in response to detecting the heart rhythm is shockable. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
-
-
18. An extravascular implantable cardioverter-defibrillator (ICD) comprising:
-
a sensing module that obtains electrical signals sensed using at least an implantable electrical lead coupled to the ICD; a pace detector including; a first pace pulse detector that detects, within the obtained electrical signals, a first type of pulses having a first set of characteristics; and a second pace pulse detector that detects, within the obtained electrical signals, a second type of pulses having a second set of characteristics different than the first set of characteristics; a blanking module that holds the sensed electrical signal at a current value to remove the first type of pulse from the sensed electrical signal; and a control module that modifies a tachyarrhythmia detection algorithm based on the detected pacing pulses. - View Dependent Claims (19, 20, 21)
-
Specification