Remotely enabled pacemaker and implantable subcutaneous cardioverter/defibrillator system

• US 7,991,467 B2
• Filed: 04/26/2005
• Issued: 08/02/2011
• Est. Priority Date: 04/26/2005
• Status: Active Grant

• Current Assignee: Medtronic Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Incorporated (Medtronic Plc)
• Inventors: Thompson, David L., Combs, William J., Sheldon, Todd J., Ghanem, Raja N., Hettrick, Douglas A., Markowitz, H. Toby, Wanasek, Kevin A.
• Primary Examiner(s): Layno; Carl H.
• Assistant Examiner(s): MORALES, JON ERIC C
• Application Number:
  US11/114,474
• Publication Number:
  US 20060241701A1
• Time in Patent Office: 2,289 Days
• Field of Search: 607 2- 5, 607/9, 607/27, 607/32, 607/60, 607/63, 607/142, 607/129, 607/130
• US Class Current: 607/4
• CPC Class Codes: A61N 1/025 Digital circuitry features of electrotherapy devices, e.g. memory, clocks, processors
• CPC Class Codes: A61N 1/37211 Means for communicating with stimulators
• CPC Class Codes: A61N 1/37229 Shape or location of the implanted or external antenna
• CPC Class Codes: A61N 1/37288 Communication to several implantable medical devices within one patient
• CPC Class Codes: A61N 1/3962 in combination with another heart therapy
• CPC Class Codes: A61N 1/39622 Pacing therapy

Abstract

Subcutaneous Implantable cardioverter-defibrillators (SubQ ICDs) are disclosed that are entirely implantable subcutaneously with minimal surgical intrusion into the body of the patient and provide distributed cardioversion-defibrillation sense and stimulation electrodes for delivery of cardioversion-defibrillation shock and pacing therapies across the heart when necessary. The SubQ ICD is implemented with other implantable and external medical devices and communicates to provide drugs and therapy in a coordinated and synergistic manner.

Claims

1. A system for automatic arrhythmia therapy delivery to a patient, comprising:

a subcutaneous, implantable cardioverter-defibrillator (SubQ ICD) device adapted to be implanted outside the thoracic cavity, the SubQ ICD being capable of detecting cardiac events indicative of an arrhythmia and delivering a shock therapy;

an implantable pulse generator (IPG) device having leads adapted for connection to a patient'"'"'s heart, the IPG device being capable of detecting cardiac events indicative of an arrhythmia and delivering a pacing therapy;

means for establishing bi-directional communication between the Sub Q ICD device and the IPG device configured to transmit data upon detection by either device of a cardiac event indicative of an arrhythmia;

means for obtaining a confirmation of an existence of cardiac events indicative of an arrhythmia by comparing a cardiac event indication of the SubQ ICD with a cardiac event indication of the IPG device; and

means for commanding delivery of a therapy upon detection of a cardiac event indicative of an arrhythmia based on the data transmitted via the bi-directional communication and a specific capability of each of the SubQ ICD device and the IPG device, wherein, in response to detection of a cardiac event indicative of an arrhythmia and obtaining the confirmation, the IPG is commanded to deliver a pacing therapy and in response to continued detection of a cardiac event indicative of an arrhythmia the SubQ ICD is commanded to deliver a shock therapy.

2. The system of claim 1 wherein said means for enabling bi-directional communication includes an RF signal.

3. The system of claim 1 wherein the IPG device transmits a signal to the SubQ ICD device to begin charging a high voltage capacitor upon detection of a cardiac event indicative of an arrhythmia and delivers a pacing therapy to terminate a presence of a cardiac event indicative of an arrhythmia.

4. The system of claim 1 wherein the IPG device provides post-shock support pacing.

5. The system of claim 1 wherein said IPG device includes a hemodynamic sensor to sense at least one of perfusion (O₂ saturation), pressure, and respiration.

6. The system of claim 5 wherein said hemodynamic sensor includes at least one of nanoteeth/electrodes, a stretch sensor, a strain gauge and epicardial fixation.

7. The system of claim 1 wherein each of said SubQ ICD device and said IPG device communicates with an automatic external defibrillator (AED) device and includes an algorithm for automatic connectivity.

8. The system of claim 1 wherein a remote data transfer device is implemented to uplink data to a remote programmer for processing data or a downlink to modify or update data in each one of the SubQ ICD device and the IPG device.