Implantable device with extended electrical conductor
AssigneeBIOTRONIK SE & Co. KG
InventorHeinrich Buessing
Life of this patent
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Abstract
Implantable medical device with at least one long extended electrical conductor that is insulated from the surrounding material by a dielectric. The implantable medical device includes an electrode pole that emits therapy signals or detects diagnostic signals, at least one first longitudinal section of a first characteristic impedance between a proximal end and the electrode pole; and at least one second longitudinal section adjacent to the at least one first longitudinal section. The at least one second longitudinal section includes a second characteristic impedance and is shorter than the first longitudinal section. The second characteristic impedance is either larger or smaller than a load characteristic impedance.
Claims19
An implantable medical device comprising:
- a dielectric with an inside diameter diel;
- at least one extended electrical conductor that is insulated from surrounding material by the dielectric;
- an electrode pole coupled with said at least one extended electrical conductor and configured to emit therapy signals or configured to detect diagnostic signals that represents a load impedance ZL of electromagnetic waves when said electrode pole is in an implanted state;
- at least one first longitudinal section situated between a proximal end of said at least one extended electrical conductor and said electrical pole, wherein said at least one first longitudinal section comprises a first characteristic impedance Z0 for electromagnetic waves;
- and,
- at least one second longitudinal section situated adjacent to the at least one first longitudinal section, wherein said at least one second longitudinal section is at least 0.25 inside diameters (diel) long, and is shorter than the first longitudinal section and comprises a characteristic impedance Z1 for electromagnetic waves, and wherein the second characteristic impedance is larger or smaller than the first characteristic impedance Z0 and larger or smaller than the load impedance ZL;
- and,
- wherein a real part of the second characteristic impedance for electromagnetic waves is smaller by a factor of at least 2 than the real part of the first characteristic impedance.
An implantable medical device comprising:
- a dielectric with an inside diameter diel;
- at least one extended electrical conductor that is insulated from surrounding material by the dielectric;
- an electrode pole coupled with said at least one extended electrical conductor and configured to emit therapy signals or configured to detect diagnostic signals that represents a load impedance ZL of electromagnetic waves when said electrode pole is in an implanted state;
- at least one first longitudinal section situated between a proximal end of said at least one extended electrical conductor and said electrode pole, wherein said at least one first longitudinal section comprises a first characteristic impedance Z0 for electromagnetic waves;
- at least one second longitudinal section situated adjacent to the at least one first longitudinal section, wherein said at least one second longitudinal section is at least 0.25 inside diameters (diel) long, and is shorter than the first longitudinal section and comprises a characteristic impedance Z1 for electromagnetic waves, and wherein the second characteristic impedance is larger or smaller than the first characteristic impedance Z0 and larger or smaller than the load impedance ZL;
- and,
- a functional lead that comprises a center conductor and a hollow-cylindrical outer conductor, and wherein the center conductor has a geometrical form in the second longitudinal section that differs from the geometrical form of the center conductor in the first longitudinal section.
Dependencies are inferred from the claim text.