Controlling blanking during magnetic resonance imaging
First Claim
1. A method of coordinating magnetic resonance imaging (MRI) comprising blanking one or more components of an implantable medical device (IMD) during delivery of electromagnetic radiation bursts to a patient.
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Abstract
The invention is directed to structure and methods for coordinating the operation of an implantable medical device (IMD) with magnetic resonance imaging (MRI) techniques. For example the IMD can be made to activate a blanking period during the time when the electromagnetic radiation bursts occur. Blanking an IMD at times when MRI electromagnetic radiation bursts occur can prevent an undesirable action or incorrect sensing by the IMD while under the influence of the electromagnetic radiation bursts.
61 Citations
38 Claims
- 1. A method of coordinating magnetic resonance imaging (MRI) comprising blanking one or more components of an implantable medical device (IMD) during delivery of electromagnetic radiation bursts to a patient.
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11. An implantable medical device comprising:
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a receiver to receive a signal; and
a control unit that in response to the signal, blanks one or more components of an implantable medical device (IMD) during application of MRI electromagnetic radiation burst. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. An implantable medical device (IMD) that disables one or more components during delivery of MRI electromagnetic radiation bursts to a patient.
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23. A system comprising:
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a magnetic resonance imaging (MRI) device including a transmitter to transmit a signal relating to application of an MRI electromagnetic radiation burst; and
an implantable medical device (IMD) including a receiver to receive the signal, and a control unit to blank one or more components of the IMD during application of the MRI electromagnetic radiation burst. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30)
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31. A system comprising:
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a programmer to define a timing for application of a magnetic resonance imaging (MRI) electromagnetic radiation burst;
an MRI device to receive a first signal from the programmer and apply the electromagnetic radiation burst according to the timing; and
an implantable medical device (IMD) to receive a second signal from the programmer and blank one or more components of the IMD during application of the MRI electromagnetic radiation burst. - View Dependent Claims (32, 33)
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34. An apparatus comprising:
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means for receiving an indication of a timing of an application of a magnetic resonance imagining (MRI) electromagnetic radiation burst; and
means for blanking one or more components of an IMD during application of the MRI electromagnetic radiation burst. - View Dependent Claims (35, 36)
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- 37. An MRI device that sends a signal to an implantable medical device (IMD) to cause the IMD to blank on or more components during application of one or more electromagnetic radiation bursts by the MRI device.
Specification