Tuned energy balanced system for minimizing heating and/or to provide EMI protection of implanted leads in a high power electromagnetic field environment
First Claim
Patent Images
1. A tuned energy balanced system for providing EMI protection by minimizing heating of an implanted lead subjected to a high power electromagnetic field environment, the energy balanced system comprising:
- a) an implantable lead having an impedance at a selected RF frequency or frequency band;
b) an energy dissipating surface; and
c) an energy diversion circuit electrically coupling the implantable lead to the energy dissipating surface, the energy diversion circuit comprising;
i) a first impedance of the energy diversion circuit that essentially cancels a second impedance of the implantable lead, andii) a first reactance of the energy diversion circuit that is vectorally opposite to a second reactance of the implantable lead to thereby facilitate transfer of high frequency energy induced on the implantable lead at the selected RF frequency or frequency band to the energy dissipating surface.
5 Assignments
0 Petitions
Accused Products
Abstract
An energy management system facilitates the transfer of high frequency energy coupled into an implanted lead at a selected RF frequency or frequency band, to an energy dissipating surface. This is accomplished by conductively coupling the implanted lead to the energy dissipating surface through an energy diversion circuit including one or more passive electronic network components whose impedance characteristics are at least partially tuned to the implanted lead'"'"'s impedance characteristics.
-
Citations
89 Claims
-
1. A tuned energy balanced system for providing EMI protection by minimizing heating of an implanted lead subjected to a high power electromagnetic field environment, the energy balanced system comprising:
-
a) an implantable lead having an impedance at a selected RF frequency or frequency band; b) an energy dissipating surface; and c) an energy diversion circuit electrically coupling the implantable lead to the energy dissipating surface, the energy diversion circuit comprising; i) a first impedance of the energy diversion circuit that essentially cancels a second impedance of the implantable lead, and ii) a first reactance of the energy diversion circuit that is vectorally opposite to a second reactance of the implantable lead to thereby facilitate transfer of high frequency energy induced on the implantable lead at the selected RF frequency or frequency band to the energy dissipating surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74)
-
-
75. A tuned energy balanced system for providing EMI protection by minimizing heating of an implanted lead subjected to a high power electromagnetic field environment, the energy balanced system comprising:
-
a) an implantable medical device; b) an implantable lead having an impedance at a selected RF frequency or frequency band, the lead being electrically connected to the medical device; c) an energy dissipating surface supported by the medical device, the implantable lead, or both; and d) an energy diversion circuit electrically coupling the implantable lead to the energy dissipating surface, the energy diversion circuit comprising; i) a first impedance of the energy diversion circuit that essentially cancels a second impedance of the implantable lead, and ii) a first reactance of the energy diversion circuit that is vectorally opposite to a second reactance of the implantable lead to thereby facilitate transfer of high frequency energy induced on the implantable lead at the selected RF frequency or frequency band to the energy dissipating surface. - View Dependent Claims (76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88)
-
-
89. A tuned energy balanced system for providing EMI protection by minimizing heating of an implantable lead subjected to a high power electromagnetic field environment, the energy balanced system comprising:
-
a) an implantable lead having an impedance at a selected RF frequency or frequency band; b) an energy dissipating surface; and c) an energy diversion circuit electrically coupling the implantable lead to the energy dissipating surface, the energy diversion circuit comprising a capacitor having; i) a first impedance of the capacitor that essentially cancels a second impedance of the implantable lead, and ii) a first reactance of the capacitor that is vectorally opposite to a second reactance of the implantable lead to thereby facilitate transfer of high frequency energy induced on the implantable lead at the selected RF frequency or frequency band to the energy dissipating surface.
-
Specification