MODULAR ANTITACHYARRHYTHMIA THERAPY SYSTEM

• US 20130053908A1
• Filed: 10/29/2012
• Published: 02/28/2013
• Est. Priority Date: 05/18/2005
• Status: Active Grant

• Current Assignee: Joseph M. Smith, Richard Milon Jr. Dujmovic
• Original Assignee: Richard Milon Jr. Dujmovic
• Inventors: Smith, Joseph M., Dujmovic, Richard Milon Jr.
• Granted Patent: US 8,649,859 B2
• Time in Patent Office: Days
• US Class Current: 607/4
• CPC Class Codes: A61N 1/3605 Implantable neurostimulators for stimulating central or peripheral nerve system
• CPC Class Codes: A61N 1/3621 for treating or preventing abnormally high heart rate
• CPC Class Codes: A61N 1/3622 comprising two or more electrodes co-operating with different heart regions
• CPC Class Codes: A61N 1/36514 controlled by a physiological quantity other than heart potential, e.g. blood pressure controlled by two or more physical parameters A61N1/36585
• CPC Class Codes: A61N 1/36564 controlled by blood pressure
• CPC Class Codes: A61N 1/36585 controlled by two or more physical parameters
• CPC Class Codes: A61N 1/372 Arrangements in connection with the implantation of stimulators
• CPC Class Codes: A61N 1/37217 characterised by the communication link, e.g. acoustic or tactile
• CPC Class Codes: A61N 1/3756 Casings with electrodes thereon, e.g. leadless stimulators
• CPC Class Codes: A61N 1/3925 Monitoring; Protecting
• CPC Class Codes: A61N 1/3956 Implantable devices for applying electric shocks to the heart, e.g. for cardioversion
• CPC Class Codes: A61N 1/39622 Pacing therapy
• CPC Class Codes: A61N 1/3987 characterised by the timing or triggering of the shock

Abstract

This document discusses, among other things, a modular antitachyarrhythmia therapy system. In an example, a modular antitachyarrhythmia system includes at least two separate modules that coordinate delivery an antitachyarrhythmia therapy, such as a defibrillation therapy. In another example, a modular antitachyarrhythmia therapy system includes a sensing module, an analysis module, and a therapy module.

Claims

1. A modular implantable system comprising:

an implantable first circuit module configured to deliver a defibrillation shock;

an implantable second circuit module, physically separate from the first circuit module, configured to deliver antitachyarrhythmia pacing (ATP) therapy; and

a controller circuit configured to control delivery of the defibrillation and ATP therapy; and

a first sensing circuit, physically separate from the first circuit module and the second circuit module, the first sensing circuit including a sensor configured to sense a physiologic parameter and a wireless transmitter circuit to send a wireless communication to the controller circuit, and wherein the first sensing circuit is shaped and configured to be implanted within at least one of the heart and the vasculature.

2. The system of claim 1, wherein the implantable second circuit module is subcutaneously implanted.

3. The system of claim 1, wherein the controller circuit is configured to schedule delivery of the defibrillation and ATP therapy.

4. The system of claim 1, further comprising an implantable third circuit, separate from the first and second circuit, the third circuit including a diaphragm stimulation circuit to deliver a diaphragmatic pacing pulse.

5. The system of claim 1, wherein the controller circuit is wirelessly communicatively coupled to at least one of the first and second circuit modules.

6. The system of claim 1, wherein the controller circuit is configured to analyze the information derived from the physiologic parameter received from the first sensing circuit to determine a therapy.

7. The system of claim 1, wherein the first sensing circuit includes a sense amplification circuit to detect an intrinsic electrical heart signal and wherein the wireless communication includes information derived from the intrinsic electrical heart signal.

8. The system of claim 1, wherein the first sensing circuit includes a heart sound sensor to detect a heart sound and wherein the wireless communication includes information derived from the heart sound.

9. The system of claim 1, wherein the first sensing circuit includes a respiration sensor to measure respiration and the wireless communication includes information derived from the respiration.

10. The system of claim 1, wherein the first sensing circuit provides a blood pressure sensor to detect blood pressure and the wireless communication includes information derived from the blood pressure, and the pacing stimulation circuit is configured to adjust delivery of a pacing pulse in response to the information derived from the blood pressure.

11. The system of claim 1, wherein:

the first sensing circuit includes an atrial sensing circuit to sense an intrinsic electrical atrial signal and the wireless communication includes information derived from the atrial signal,

the system further comprises a ventricular sensing circuit to sense an intrinsic electrical ventricular signal and send a wireless communication that includes information derived from the ventricular signal; and

the controller circuit is configured to analyze the information derived from at least one of the atrial signal and the ventricular signal to determine therapy.

12. The system of claim 1, wherein the first sensing circuit is shaped and configured to be implanted in the heart.

13. The system of claim 1, wherein the first sensing circuit is shaped and configured to be implanted in a pulmonary vessel.

14. The system of claim 1, wherein the first sensing circuit is shaped and configured to be implanted in a peripheral cardiac vessel.

15. The system of claim 1, wherein the first sensing circuit is configured to send the wireless communication as an electrical signal through a human or animal body, wherein the body is used as a conductive medium for the wireless communication.

16. The system of claim 1, wherein the modular device is configured to sense at least two physiologic parameters concurrently, and further includes a memory circuit configured to record information relating to the at least two physiologic parameters.

17. The system of claim 1, further including an implantable memory circuit that is configured to be replaced without requiring replacement of the first or second circuit modules, the controller circuit, or the first sensor circuit.

18. The system of claim 1, wherein the first sensing circuit provides a blood pressure sensor to detect blood pressure and the wireless communication includes information derived from the blood pressure.