Method of controlling RF transmissions to mitigate interference with critical care medical equipment
AssigneeUniversity of Pittsburgh—Of the Commonwealth System of Higher Education
InventorsMarlin H. Mickle, Ajay Ogirala, Peter J. Hawrylak, Joshua R. Stachel
Life of this patent
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Abstract
Various methods of mitigating RF interference with one or more critical care medical devices is provided, wherein a predetermined threshold energy acceleration value is associated with the one or more critical care medical devices that, if exceeded, will cause RF interference with the one or more critical care medical devices. The methods includes generating and transmitting RF energy, wherein at least a portion of said RF energy follows an RF power profile of power versus time having a particular format designed to mitigate interference.
Claims12
A method of mitigating RF interference with one or more critical care medical devices, wherein a predetermined threshold energy acceleration value is associated with the one or more critical care medical devices that, if exceeded, will cause RF interference with the one or more critical care medical devices, the method comprising:
- generating and transmitting RF energy, wherein at least a portion of said RF energy follows acs RF power profile of power versus time, the RF power profile having an upward ramping portion, a stay portion immediately following the upward ramping portion wherein power of the RE energy is at a maximum, and a downward ramping portion immediately following the stay portion, wherein, except for parts of the upward ramping portion that are too short in duration for rates of change of power exceeding the predetermined threshold energy acceleration to be detected by the one or more critical care medical devices and cause interference, the upward ramping portion monotonically increases and a slope of the upward ramping portion at any other parts thereof does not exceed the predetermined threshold energy acceleration value and wherein, except for parts of the downward ramping portion that are too short in duration for absolute values of rates of change of power exceeding the predetermined threshold energy acceleration to be detected by the one or more critical care medical devices and cause interference, the downward ramping portion monotonically decreases and an absolute value of a slope of the downward ramping portion at any other parts thereof does not exceed the predetermined threshold energy acceleration value.
Dependencies are inferred from the claim text.