Device and method for anti-tachycardia pacing
AssigneeImpulse Dynamics NV
InventorsTamir BEN DAVID, David PRUTCHI
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Abstract
A method of anti-tachycardia pacing via an implanted cardiac device, comprising: positioning at least one electrode of the implanted cardiac device at an intra-cardiac location; detecting a tachycardia episode; delivering, via the at least one electrode, anti-tachycardia pacing pulses, wherein an anti-tachycardia pacing pulse comprises at least one of: a duration of between 5-10 msec and an amplitude of between 7.5-10V.
Claims29
An implantable cardiac device comprising:
- at least one lead electrode configured to contact intra-cardiac tissue;
- a housing including circuitry for controlling and activating said at least one lead electrode;
- and
- a pulse generator configured to generate anti-tachycardia pacing pulses to be delivered by said at least one lead electrode, wherein an anti-tachycardia pacing pulse comprises at least one of:
- a duration of between 5-10 msec and an amplitude of between 5-10V;
- and
- wherein said pulse generator is configured to generate synchronized anti-tachycardia pacing pulses to be delivered via at least two lead electrodes configured to be positioned in at least two different intra-cardiac locations.
(canceled)
The device according to claim 31, wherein said at least two lead electrodes are configured to be positioned in at least two different intra-cardiac locations from the following:
- a. within the right ventricle;
- b. along the ventricular septum;
- c. the right ventricle and the left ventricle;
- wherein said pulse generator is configured to deliver a defibrillation pulse if a detected tachycardia episode continues following delivery of said anti-tachycardia pacing pulses;
- wherein said circuitry is configured to detect said tachycardia episode by measuring an R-R interval via said at least one lead electrode;
- wherein said circuitry is configured to detect said tachycardia episode when measuring a heart rate of between 180-250 BPM;
- wherein said anti-tachycardia pacing pulse is a biphasic pulse;
- wherein said circuitry comprises a memory which stores a plurality of anti-tachycardia pacing pulse sequences, and a controller configured to implement the delivery of a selected anti-tachycardia pacing pulse sequence;
- wherein said cardiac device is further configured for one or more of:
- delivering, during normal sinus rhythm, cardiac contractility modulation stimulations having a duration of between 5-10 msec and an amplitude of between 5-10V;
- and
- delivering defibrillation shocks.
5-11. (canceled)
15-16. (canceled)
A method of anti-tachycardia pacing via an implanted cardiac device, comprising:
- positioning at least one electrode of the implanted cardiac device at an intra-cardiac location;
- detecting a tachycardia episode;
- delivering, via said at least one electrode, anti-tachycardia pacing pulses, wherein an anti-tachycardia pacing pulse comprises at least one of:
- a duration of between 5-10 msec and an amplitude of between 5-10V.
20-23. (canceled)
25-26. (canceled)
(canceled)
A method of anti-tachycardia pacing via an implanted cardiac device, comprising:
- detecting a tachycardia episode;
- delivering a pulse sequence which combines anti-tachycardia pacing pulses having different durations.
35-37. (canceled)
39-41. (canceled)
A method of anti-tachycardia pacing via an implanted cardiac device, comprising:
- detecting a tachycardia episode;
- delivering, via at least two electrodes positioned in contact with tissue in at least two different intra-cardiac locations, anti-tachycardia pacing pulses.
(canceled)
Dependencies are inferred from the claim text.