Leadless cardiac pacemaker with mri pacing mode
AssigneeCardiac Pacemakers, Inc.
InventorBrendan E. Koop
Life of this patent
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Abstract
A cardiac rhythm management system includes a first implantable medical device configured to monitor a patient's heart rhythm and provide therapy if appropriate, and a second implantable medical device that is configured to monitor the patient's heart rhythm and provide therapy if appropriate. The first implantable medical device is configured to detect a magnetic field indicative of an MRI machine and, upon detecting a magnetic field indicative of an MRI machine, is further configured to communicate the presence of the magnetic field indicative of the MRI machine to the second implantable medical device. The second implantable medical device may then enter an MRI-safe mode.
Claims20
A cardiac rhythm management system comprising:
- a first implantable medical device configured to monitor a patient's heart rhythm and provide therapy if appropriate, the first implantable medical device is further configured to detect a magnetic field indicative of an MRI;
- a second implantable medical device configured to monitor a patient's heart rhythm and provide therapy if appropriate;
- and
- wherein the first implantable medical device, upon detecting a magnetic field indicative of an MRI, is further configured to communicate the presence of the magnetic field indicative of the MRI to the second implantable medical device.
A leadless cardiac pacemaker (LCP), comprising:
- a housing;
- two or more electrodes for receiving conducted communication signals emanating from outside of the housing;
- a receiver coupled to the two or more electrodes for receiving a communication via conducted communication that indicates the presence of a magnetic field indicative from an MRI;
- and
- a controller coupled to the receiver, the controller configured to cause the leadless cardiac pacemaker to enter an MRI-safe mode upon receiving the communication that indicates the presence of the magnetic field indicative of an MRI.
A method of operating a cardiac rhythm management system including an implantable defibrillator and an implantable leadless pacemaker, the method comprising:
- detecting, via the implantable defibrillator or the implantable leadless pacemaker, a presence of a magnetic field indicative of an MRI;
- communicating, to the other of the implantable defibrillator or the implantable leadless pacemaker, an indication of the detected magnetic field;
- and
- altering a function of the implantable defibrillator or the implantable leadless pacemaker in response to receipt of the communicated indication.
Dependencies are inferred from the claim text.