DEFIBRILLATOR WITH IMPLANTABLE MEDICAL DEVICE DETECTION

• US 20140005735A1
• Filed: 08/30/2013
• Published: 01/02/2014
• Est. Priority Date: 12/22/2005
• Status: Active Grant

• Current Assignee: Physio-Control Incorporated (Stryker Corporation)
• Original Assignee: Physio-Control Incorporated (Stryker Corporation)
• Inventors: Jorgenson, David
• Granted Patent: US 9,233,256 B2
• Time in Patent Office: Days
• US Class Current: 607/6
• CPC Class Codes: A61N 1/3605 Implantable neurostimulators for stimulating central or peripheral nerve system
• CPC Class Codes: A61N 1/36142 for improving safety
• CPC Class Codes: A61N 1/37211 Means for communicating with stimulators
• CPC Class Codes: A61N 1/37247 User interfaces, e.g. input or presentation means
• CPC Class Codes: A61N 1/3904 External heart defibrillators [EHD]
• CPC Class Codes: A61N 1/39044 in combination with cardiopulmonary resuscitation [CPR] therapy
• CPC Class Codes: A61N 1/3925 Monitoring; Protecting
• CPC Class Codes: A61N 1/3993 User interfaces for automatic external defibrillators
• CPC Class Codes: G09B 23/28 for medicine
• CPC Class Codes: G09B 23/288 for artificial respiration or heart massage

Abstract

In general, the invention is directed to techniques for using an external defibrillator to detect a presence of an implantable medical device (IMD) implanted within a patient, and providing therapy to the patient through communication between the external defibrillator and the IMD. An external defibrillator provides prompts to a user of the external defibrillator to determine the presence of an IMD implanted within the patient. For example, the external defibrillator may prompt the user to visually inspect the patient'"'"'s chest for signs that an IMD was implanted, such as a scar or raised portion of skin near the patient'"'"'s clavicles. As another example, the external defibrillator may prompt the user to place a detection device on the patient'"'"'s chest. The detection device may be coupled to the external defibrillator, and may employ a magnet to initiate telemetry by the IMD to detect the presence of the IMD.

Claims

1. An external defibrillator comprising:

a defibrillation therapy generator;

electrodes coupled to the defibrillation therapy generator; and

a detection device that detects presence of an implantable medical device (IMD) in a patient.

2. The external defibrillator of claim 1, further comprising an output medium that indicates presence of the IMD.

3. The external defibrillator of claim 2, wherein the output medium provides at least one of a visual indication or an audible indication of presence of the IMD.

4. The external defibrillator of claim 1, wherein the detection device is configured to trigger initiation of telemetry by the IMD and detect the presence of the IMD based on reception of one or more telemetry signals from the

5. The external defibrillator of claim 1, wherein the detection device includes a magnet to trigger initiation of telemetry by the IMD.

6. The external defibrillator of claim 5, further comprising a processor that receives information from the IMD via the telemetry signals, wherein the processor controls the therapy generator to deliver therapy to the patient based on the received information.

7. The external defibrillator of claim 6, wherein the received information includes electrogram information, electrocardiogram information, and IMD event information.

8. The external defibrillator of claim 7, wherein the received information comprises patient information and IMD information.

9. A method comprising:

detecting presence of an implantable medical device (IMD) in a patient via a detection device associated with an external defibrillator; and

indicating presence of the IMD to a user of the external defibrillator.

10. The method of claim 9, wherein indicating the presence of the IMD comprises indicating the presence of the IMD via at least one of an audible indication or a visual indication.

11. The method of claim 9, further comprising:

placing the detection device near the IMD, wherein the detection device includes a magnet to trigger initiation of telemetry by the IMD; and

communicating with the IMD via a telemetry device, wherein the telemetry device is integrated with the detection device.

12. The method of claim 11, further comprising:

receiving information from the IMD via the telemetry device; and

delivering therapy to the patient based on the received information.

13. The external defibrillator of claim 12, wherein the received information includes electrogram information, electrocardiogram information, and IMD event information.