Communication with an implantable medical device during implantation

• US 8,942,818 B2
• Filed: 03/26/2010
• Issued: 01/27/2015
• Est. Priority Date: 12/30/2009
• Status: Active Grant

• Current Assignee: Medtronic Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Incorporated (Medtronic Plc)
• Inventors: Markowitz, H. Toby, Cinbis, Can
• Primary Examiner(s): Heller, Tammie K
• Application Number:
  US12/732,433
• Publication Number:
  US 20110160801A1
• Time in Patent Office: 1,768 Days
• Field of Search: 607/30, 607/32, 607/60, 607/61
• US Class Current: 607/60
• CPC Class Codes: A61B 2034/2053 Tracking an applied voltage gradient
• CPC Class Codes: A61B 2560/0271 using a remote monitoring unit
• CPC Class Codes: A61B 5/0028 Body tissue as transmission medium, i.e. transmission systems where the medium is the human body
• CPC Class Codes: A61B 5/0031 Implanted circuitry
• CPC Class Codes: A61N 1/37205 Microstimulators, e.g. implantable through a cannula
• CPC Class Codes: A61N 1/37217 characterised by the communication link, e.g. acoustic or tactile
• CPC Class Codes: A61N 1/37241 providing test stimulations
• CPC Class Codes: A61N 1/3756 Casings with electrodes thereon, e.g. leadless stimulators

Abstract

A system and method are described for delivering an implantable medical device in a patient and through a catheter. The delivery catheter comprises telemetry means for communicatively coupling the implantable medical device with an external instrumentation during implantation.

Claims

1. An implantable medical device delivery system comprising:

an external device located outside a body of a patient;

an elongate catheter body defining a lumen and having a proximal end configured to be coupled to the external device located outside of the patient and a distal end configured to extend within the body of the patient;

a first telemetry coupling member located near the distal end of the catheter body;

a feed line coupled to the first telemetry coupling member located near the distal end of the catheter body and

coupled to the external device at the proximal end of the catheter body;

an implantable medical device located within the lumen defined by the catheter body and detachably coupled to the distal end of the catheter body, wherein the first telemetry coupling member is communicatively coupled to a second telemetry coupling member, the second telemetry coupling member in the implantable medical device, and wherein the external device is communicatively coupled to the implantable medical device via the first and second telemetry coupling members.

2. The system of claim 1, wherein the first and second telemetry coupling members comprise antennas.

3. The system of claim 2, further comprising a conductor that extends along a length of the catheter body from the proximal end of the catheter body to the distal end of the catheter body adjacent to the implantable medical device, wherein a first portion of the conductor forms the feed line and a second portion of the conductor forms the antenna of the first telemetry coupling member.

4. The system of claim 1, wherein the first and second telemetry coupling members comprise transducers that convert electrical signals to nonelectrical signals.

5. The system of claim 1, wherein the first and second telemetry coupling members comprise one or more electrical contacts that electrically couple the feed line and the implantable medical device.

6. The system of claim 1, wherein the first and second telemetry coupling members comprise one or more capacitive members that capacitively couple electrical signals between the feed line and the implantable medical device.

7. The system of claim 1, wherein the feed line comprises an optical cable and the first and second telemetry coupling members optically couple signals between the feed line and the implantable medical device.

8. The system of claim 1, wherein the first and second telemetry coupling members each include at least two electrodes that conductively couple signals on the feed line and the implantable medical device.

9. The system of claim 1, wherein the implantable medical device comprises circuitry to receive a communication signal from the external device and to perform an action in response to the communication signal.

10. The system of claim 9, wherein the action comprises one of enabling power, changing power, disabling power, changing operating mode, changing operating parameters, changing telemetry mode, changing communication signal frequency, connecting circuitry, disconnecting circuitry, sending a communication, and testing suitability for implant.

11. The system of claim 1, wherein the external device provides power to the implantable medical device to power at least a portion of the components of the implantable medical device.

12. The system of claim 1, wherein the external device is coupled to at least one body electrode on a surface of the body of the patient, the external device communicating a signal through the patient between the at least one body electrode and one of the first and second telemetry coupling members.

13. The system of claim 12, wherein one of the external device or the implantable medical device measures a quality of the communication signal through the patient between the at least one body electrode and one of the first and second telemetry coupling members.

14. The system of claim 13, wherein the external device reports the communication signal quality to a user of the external device.

15. The system of claim 13, wherein the external device predicts the communication signal quality of communication with the implantable medical device after implantation based upon the measured communication signal quality.

16. The system of claim 13, wherein the implantable medical device or the external device sequentially communicates via one of a plurality of communication frequencies.

17. The system of claim 16, wherein either the external device or the implantable medical device selects a communication frequency based on the measured signal qualities.

18. The system of claim 1, wherein the implantable medical device is a leadless implantable medical device.

19. The system of claim 1 further comprising:

a conductor extending from the implantable medical device;

an electrode coupled to the conductor; and

a control line detachably coupled to the conductor to electrically couple the external device to the electrode.