Implantable device

Patent metadata

Field	Value
Publication number	US-10173054-B2
Application number	US-201414475634-A
Country	US
Kind code	B2
Filing date	Sep 3, 2014
Priority date	Sep 13, 2013
Publication date	Jan 8, 2019
Grant date	Jan 8, 2019

Abstract

An implantable medical device including at least one elongate electrical line with a first electrical component as a functional conductor, and at least one second electrical component with an electrical length. The first electrical component includes a proximal end and a distal end, wherein the distal side is in electrical contact with tissue or blood. The first electrical component is in electrical contact with the at least one second electrical component, and wherein the electrical length of the at least one second component corresponds to at least a tenth of a wavelength (λ/10) of electromagnetic waves in a radiofrequency range.

First claim

What is claimed is:

1. An implantable medical device comprising:
at least one elongate electrical line, wherein the at least one elongate electrical line comprises
a first electrical component, wherein the first electrical component or a portion of the first electrical component comprises a functional conductor;
an electrode head disposed at a distal end of the first electrical component, wherein the electrode head comprises a contact point; and,
at least one second electrical component in electrical contact with the first electrical component, wherein the at least one second electrical component comprises
an electrical conductor comprising a first end, a second end and an electrical conductor length that is insulated completely along or along part of the electrical conductor length,
wherein the first end is electrically connected to the contact point of the electrode head and wherein the second end is configured to electrically connect to a tissue capacitively, inductively or galvanically,
wherein the electrical conductor length corresponds to at least a tenth of a wavelength of electromagnetic waves in a radiofrequency range that said first electrical component is subjected to,
wherein the electrical conductor further comprises one of a meandered coil shape, a helically wound shape and a spirally wound shape,
wherein the outer dimension of the electrical conductor is smaller than the electrical conductor length; and,

a flexible support material that is wound around the first electrical component and a conductive track disposed on said flexible support material.

2. The implantable medical device as claimed in claim 1 , wherein the at least one elongate electrical line further comprises at least one electrode pole, and wherein the functional conductor is connected to the at least one electrode pole that is configured to deliver therapy signals and/or detect diagnosis signals.

3. The implantable medical device as claimed in claim 2 , further comprising an electrode line, wherein the at least one elongate electrical line is disposed at a distal end of the electrode line, and wherein the electrode line is configured to connect to a therapy device, a monitoring device or a therapy and monitoring device.

4. The implantable medical device as claimed in claim 3 , wherein the electrode line further comprises a proximal end configured to connect to the therapy device, the monitoring device or the therapy and monitoring device, and the distal end of the electrode line is remote from the proximal end of the electrode line, wherein the distal end comprises the at least one electrode pole and the at least one second electrical component.

5. The implantable medical device as claimed in claim 3 , wherein the electrode line further comprises a longitudinal portion, such that the at least one second electrical component is wound around the longitudinal portion.

6. The implantable medical device as claimed in claim 4 , wherein the electrode line further comprises a longitudinal portion, such that the at least one second electrical component is wound around the longitudinal portion.

7. The implantable medical device as claimed in claim 1 , wherein the at least one second electrical component further comprises a dielectrically effective medium, wherein the electrical conductor thereof is surrounded completely or in part by the dielectrically effective medium, and wherein the dielectrically effective medium comprises a relative permittivity e R greater than 10.

8. The implantable medical device as claimed in claim 7 , wherein the dielectrically effective medium or portions of the dielectrically effective medium further comprises a material of one or more of a ferroelectric and at least one of glass, barium titinate, polyethylene, silicon oxide, silicon carbide, ceramic, piezo materials, aluminum oxide, titanium oxide, tantalum oxide, semiconductor materials, and plastics.

9. The implantable medical device as claimed in claim 1 , wherein the at least one second electrical component further comprises at least one line end, and is configured to contact the tissue at a distance n*½ of a wavelength in the radiofrequency range from the at least one line end, and wherein n is a natural number in a range of n=1 to n=2.

10. The implantable medical device as claimed in claim 7 , wherein the first electrical component further comprises an electrically conductive surface, and wherein the at least one second electrical component and the dielectrically effective medium are in contact with the electrically conductive surface.

11. The implantable medical device as claimed in claim 8 , wherein the first electrical component further comprises an electrically conductive surface, and wherein the at least one second electrical component and the dielectrically effective medium are in contact with the electrically conductive surface.

12. The implantable medical device as claimed in claim 1 , wherein the electrical conductor length of the at least one second electrical component comprises a length matched to a frequency range between 10 MHz and 400 MHz or between 40 MHz and 150 MHz.

13. The implantable medical device as claimed in claim 1 , wherein the quarter of the wavelength of electromagnetic waves in the radiofrequency range is from 40 MHz to 150 MHz.

14. An implantable medical device comprising:
at least one elongate electrical line, wherein the at least one elongate electrical line comprises
a first electrical component, wherein the first electrical component or a portion of the first electrical component comprises a functional conductor;
an electrode head disposed at a distal end of the first electrical component, wherein the electrode head comprises a contact point; and,
a second electrical component wound around the electrode head and in electrical contact with the first electrical component and the functional conductor, wherein the second electrical component comprises a flexible support material comprising a flexible sheet; and,
a conductive track on said flexible support material, wherein the conductive track is a coiled conductive track comprising an electrical conductor having a first end, a second end and an electrical conductor length that is insulated completely along or along part of the electrical conductor length,
wherein the electrical conductor length corresponds to at least a tenth of a wavelength of electromagnetic waves in a radiofrequency range that said first electrical component is subjected to.

15. An implantable medical device comprising:
at least one elongate electrical line, wherein the at least one elongate electrical line comprises
a first electrical component, wherein the first electrical component or a portion of the first electrical component comprises a functional conductor;
an electrode head disposed at a distal end of the first electrical component, wherein the electrode head comprises a contact point; and, at least one second electrical component in electrical contact with the first electrical component, wherein the at least one second electrical component comprises
an electrical conductor having a first end, a second end and an electrical conductor length that is insulated completely along or along part of the electrical conductor length,
wherein the first end is electrically connected to the contact point of the electrode head and wherein the second end is configured to electrically connect to a tissue capacitively, inductively or galvanically,
wherein the electrical conductor length corresponds to at least a tenth of a wavelength of electromagnetic waves in a radiofrequency range that said first elec

Assignees

• Biotronik Se & Co Kg

Inventors

• Kolberg Gernot
• Rump Jens
• Friedrich Michael
• Buessing Heinrich
• Knorr Stefan
• Bitzer Andreas
• Teaubert Kerstin
• Weiss Ingo
• Bartels Klaus
• Maxfield Michelle
• Lenski Hartmut
• Frenzel Timo
• Trip Erik

Classifications

• A61N1/08 Primary

  Arrangements or circuits for monitoring, protecting, controlling or indicating {(for external stimulators A61N1/3603; for implantable neurostimulators A61N1/36128; for heart stimulators A61N1/37; for defibrillators A61N1/3925)} · CPC title

• A61N1/056

  Transvascular endocardial electrode systems · CPC title

• A61N1/05

  for implantation or insertion into the body, e.g. heart electrode (A61N1/06 takes precedence) · CPC title

• A61B5/6846

  specially adapted to be brought in contact with an internal body part, i.e. invasive · CPC title

• A61N1/086

  Magnetic resonance imaging [MRI] compatible leads · CPC title