Signal line of an implantable electromedical configuration

• US 9,205,250 B2
• Filed: 03/13/2009
• Issued: 12/08/2015
• Est. Priority Date: 03/29/2008
• Status: Expired due to Fees

• Current Assignee: Biotronik SE & Company KG
• Original Assignee: Biotronik VI Patent AG (Biotronik SE & Company KG)
• Inventors: Weiss, Ingo, Knorr, Stefan
• Primary Examiner(s): Layno, Carl H
• Assistant Examiner(s): Wu, Eugene
• Application Number:
  US12/403,404
• Publication Number:
  US 20090248102A1
• Time in Patent Office: 2,461 Days
• Field of Search: 607/32, 607/37, 607/63, 607/76, 607/115, 607/116
• US Class Current: 1/1
• CPC Class Codes: A61N 1/025 Digital circuitry features of electrotherapy devices, e.g. memory, clocks, processors
• CPC Class Codes: A61N 1/05 for implantation or insertion into the body, e.g. heart electrode A61N1/06 takes precedence
• CPC Class Codes: A61N 1/0541 Cochlear electrodes
• CPC Class Codes: A61N 1/0563 specially adapted for defibrillation or cardioversion
• CPC Class Codes: A61N 1/086 Magnetic resonance imaging [MRI] compatible leads
• CPC Class Codes: A61N 1/378 Electrical supply
• CPC Class Codes: H10N 30/804 for piezoelectric transformers conversion of DC or AC power H02M; for operating discharge lamps H05B41/282

Abstract

A signal line for an implantable electromedical configuration, having an electric line segment or line end and a mechanoelectric converter for converting an electric AC voltage signal into a mechanical oscillation. The oscillation can in turn be converted back into an electrical signal for delivery to a part of a human or mammal body, e.g., a heart.

Claims

1. An electrical configuration for an electromedical device including:

a. stimulation electrodes situated externally on or from the electromedical device;

b. an input electric line bearing an input electric AC voltage signal;

c. an AC voltage converter receiving the input electric AC voltage signal and producing output electric AC voltage signals therefrom, the AC voltage converter including;

(1) two or more electromechanical converters, each electromechanical converter receiving at least a portion of the input electric AC voltage signal and converting it into a motion, wherein at least a portion of the output electric AC voltage signals are subsequently generated from the motion, and

(2) two or more mechanoelectric converters, each mechanoelectric converter converting motion into one of the output electric AC voltage signals,

wherein;

i. the AC voltage converter is provided as a unit situated within an electrode line, and

ii. different ones of the stimulation electrodes are supplied with different output electric AC voltage signals from different respective ones of the mechanoelectric converters.

2. The electrical configuration of claim 1 wherein at least two of the electromechanical converters generate different motion outputs in response to the same input electric AC voltage signal.

3. The electrical configuration of claim 1 wherein the mechanoelectric converters generate at least two output electric AC voltage signals having different voltages.

4. The electrical configuration of claim 1 wherein each mechanoelectric converter is connected following a respective one of the electromechanical converters.

5. The electrical configuration of claim 1 wherein the electromechanical converters and the mechanoelectric converters are adjacently situated within the electrode line.

6. The electrical configuration of claim 1 further including an output electric line from the AC voltage converter, wherein the output electric line has a lower resistance than the input electric line.

7. The electrical configuration of claim 1 wherein a piezoelectric element is provided within any electromechanical converter and/or mechanoelectric converter within the AC voltage converter.

8. The electrical configuration of claim 1 wherein the AC voltage converter includes a piezoelectric element having:

a. opposing first and second electrodes on opposing surfaces of the piezoelectric element, and

b. a third electrode on a surface oriented at least substantially perpendicular to one or more of the first and second electrodes.

9. The electrical configuration of claim 1 wherein the AC voltage converter includes multiple electrodes with piezoelectric elements sandwiched between pairs of the electrodes.

10. The electrical configuration of claim 1 wherein one or more frequency-controlled switches are connected following one of the mechanoelectric converters, each switch:

a. passing at least a portion of the output electric AC voltage signals if the input electric AC voltage signal is at one or more acceptable frequencies, and

b. otherwise blocking the output electric AC voltage signals.

11. The electrical configuration of claim 1 wherein:

a. the electrode line extends from a housing, at least a portion of the housing being electrically conductive, wherein the electrically conductive portion of the housing is connected in conductive communication with the input electric line; and

b. a body contact situated externally on or from the electromedical device receives at least a portion of the input electric AC voltage signal.

12. The electrical configuration of claim 1 further including a rectifier receiving at least a portion of one of the output electric AC voltage signals.

13. The electrical configuration of claim 1 wherein each stimulation electrode'"'"'s voltage signal is rectified prior to reaching the stimulation electrode.