Electrically conductive connection element for a temporary electrically conductive connection to an electrical consumer

Patent metadata

Field	Value
Publication number	US-2023211153-A1
Application number	US-202118000518-A
Country	US
Kind code	A1
Filing date	Jun 2, 2021
Priority date	Jun 5, 2020
Publication date	Jul 6, 2023
Grant date	—

Abstract

An electrically conductive connection element for a temporary electrically conductive connection to an electrical consumer, in particular an external pacemaker, which is implanted in the living tissue of a patient, may have at least one biocompatible and bioresorbable electrical conductor strand in the form of an individual wire or a multifilament formed by multiple wires. The at least one electrical conductor strand is surrounded by at least one biocompatible and bioresorbable polymer or is embedded in a matrix formed by the polymer.

First claim

What is claimed is:

1 - 14 . (canceled)

15 . An electrically conductive connection element for a temporary electrically conductive connection to an electrical consumer comprising an external pacemaker, implanted in the living tissue of a patient and consisting of at least one biocompatible and bioresorbable electrical conductor strand in the form of a single wire or of a multifilament formed from a plurality of wires, wherein the at least one electrical conductor strand is surrounded by at least one biocompatible and bioresorbable polymer or is embedded therein in a matrix formed by the polymer.

16 . The connection element in accordance with claim 15 , wherein the at least one electrical conductor strand is formed from molybdenum, tungsten, or an Mo or W based alloy.

17 . The connection element in accordance with claim 15 , wherein the at least one electrical conductor strand is formed from a Mo base alloy having at least 50 atomic weight % Mo and at least one of the alloy elements selected from W, Re, V, Nb, Ta, Hf, Mn and Fe; or in that the at least one electrical conductor strand is formed from a W base alloy having at least 50 atomic weight % W and at least one of the alloy elements selected from Mo, Re, V, Nb, Ta, Hf, Mn and Fe.

18 . The connection element in accordance with claim 15 , wherein the diameter of single wires with which the at least one electrical conductor strand is formed is in the range between 3 µm and 50 µm, preferably in the range between 10 µm and 30 µm.

19 . The connection element in accordance with claim 15 , wherein the diameter of single wires with which the at least one electrical conductor strand is formed is in the range between 10 µm and 30 µm.

20 . The connection element in accordance with claim 15 , wherein the at least one biocompatible and bioresorbable polymer is formed on the basis of polylactide, polyglycolide, poly(lactide-co-glycolide) or polycaprolactone.

21 . The connection element in accordance with claim 15 , wherein the at least one biocompatible and bioresorbable polymer is used as a homopolymer or as a copolymer or as a mixture of different ones of these polymers.

22 . The connection element in accordance claim 15 , wherein the at least one electrical conductor strand is surrounded by or embedded in a first inner layer formed by a polymer A and is surrounded by a second outer layer formed by a polymer B.

23 . The connection element in accordance with claim 22 , wherein the polymer B is degraded over a longer time period than the polymer A or has a delayed start of the degradation in comparison with polymer A.

24 . The connection element in accordance with claim 22 , wherein at least one electrical conductor strand is wound around a central core formed from polymer A and the first inner layer is formed on the surface of the core of polymer A provided with the electrical conductor strand and the first inner layer is in turn surrounded by an outer layer of polymer B.

25 . The connection element in accordance with claim 22 , wherein at least one further electrical conductor strand is wound on an outer surface of the first inner layer and at least one second inner layer having the polymer A is formed on the surface of the first inner layer having the at least one further electrical conductor strand and is in turn surrounded by the outer layer of the polymer B.

26 . The connection element in accordance with claim 22 , wherein a respective layer of polymer B is formed between the at least two inner layers that each surround at least one electrical conductor strand and are formed from polymer A.

27 . The connection element in accordance with claim 15 , wherein at least two electrical conductor strands having different functions are arranged coaxially or cordially with one another in at least one inner layer that is formed by polymer A.

28 . The connection element in accordance with claim 27 , wherein at least two electrical conductor strands are anodic and cathodic electrical conductors or are measurement, stimulation, and defibrillation probes.

29 . The connection element in accordance with claim 15 , wherein regions of the connection element that are provided for electrical contact with the living tissue are modified at their surfaces; and in that at least a portion of the at least one electrical conductor strand is kept free of polymer in these regions.

30 . The connection element in accordance with claim 29 , wherein at least the polymer-free regions of the at least one electrical conductor strand of an Mo or W base material are provided with a coating of a second Mo or W base material or from a bioresorbable conductive oxide, nitride, or carbide on a Mo or W base.

Assignees

• Fraunhofer Gesellschan Zur Ferderungder Angewandten Forschung E V
• Univ Dresden Tech

Inventors

• Quadbeck Peter
• Pöhle Georg
• Redlich Christian
• Kappert Utz

Classifications

• A61N1/0595 Primary

  Temporary leads · CPC title

• A61N1/056 Primary

  Transvascular endocardial electrode systems · CPC title

• A61N1/3625

  External stimulators · CPC title