EP4583964A1 - Implant médical sous la forme d'un manchon enveloppant - Google Patents

Implant médical sous la forme d'un manchon enveloppant

Info

Publication number
EP4583964A1
EP4583964A1 EP23767837.0A EP23767837A EP4583964A1 EP 4583964 A1 EP4583964 A1 EP 4583964A1 EP 23767837 A EP23767837 A EP 23767837A EP 4583964 A1 EP4583964 A1 EP 4583964A1
Authority
EP
European Patent Office
Prior art keywords
surface substrate
substrate section
medical implant
section end
flat substrate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP23767837.0A
Other languages
German (de)
English (en)
Inventor
Fabian KIMMIG
Tim BORETIUS
Max EICKENSCHEIDT
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Neuroloop GmbH
Original Assignee
Neuroloop GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Neuroloop GmbH filed Critical Neuroloop GmbH
Publication of EP4583964A1 publication Critical patent/EP4583964A1/fr
Pending legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/02—Details
    • A61N1/04—Electrodes
    • A61N1/05—Electrodes for implantation or insertion into the body, e.g. heart electrode
    • A61N1/0551—Spinal or peripheral nerve electrodes
    • A61N1/0556—Cuff electrodes

Definitions

  • the invention relates to a medical implant in the form of a winding sleeve for arranging around a nerve fiber bundle, with a film-like, biocompatible surface substrate which has at least a first surface substrate section, which is formed by winding with a winding direction predetermined by a material-inherent shape impression around a spatial axis into a hollow cylindrical shape Shape can be transferred, has a first surface substrate section end, which in the wound state rests on a first surface of the first surface substrate section, which is oriented facing a space radially enclosed by the wound first surface substrate section, and has a second surface substrate section end opposite the first surface substrate section end , which in the wound state is arranged on the side of a second surface of the first surface substrate section facing away from the first surface and which is oriented away from the space radially enclosed by the wound first surface substrate section.
  • So-called wrapping cuffs which are also referred to as cuff electrodes, are used for the intracorporeal application of electrical stimulation signals along a bundle of nerve fibers.
  • a particularly preferred cuff electrode is disclosed in the document EP 3 204 105 B1.
  • Cuff electrodes have a film-like, biocompatible surface substrate capable of locally wrapping around a bundle of nerve fibers, on the surface of which an electrode arrangement is attached for the application of electrical signals, which is in the immediate vicinity Surface contact with the epineurium of a nerve fiber bundle is brought into contact.
  • the film-like surface substrate provides an intrinsically impressed mechanical tension in such a way that the otherwise preferably rectangular, film-like surface substrate can independently wind or roll up around a winding axis in an otherwise force-free state to form a straight hollow cylindrical shape.
  • the film-like surface substrate is rectangular in shape, at least in the area of the material-inherent prestress, with a free surface substrate side edge which is guided at least once, preferably several times, around a winding axis, the film-like carrier substrate forming multiple, loosely adjacent, hollow cylindrical surface substrate windings.
  • the electrode arrangement is attached in order to directly contact the surface of the epineurum of the nerve fiber bundle in the implanted state and locally applied around a nerve fiber bundle.
  • the surface substrate is wrapped multiple times around the nerve fiber bundle, whereby the mechanical hold on the outer circumference of the nerve fiber bundle is improved as the number of windings increases.
  • the radially outermost winding of the surface substrate merges in one piece into a mechanically non-prestressed, i.e. otherwise flat, surface substrate section, to which an electrical contact arrangement is usually attached, via the electrical supply and discharge lines connected to the electrode arrangement via a corresponding conductor structure with an implantable electrical supply unit can be connected, in which both means for electrical energy supply as well as for controlling and operating the cuff electrode are accommodated.
  • Surface substrate section 1 is preferably flatly rectangular in shape and has a first surface substrate section end 2, which, as shown in Figure 1a, rests loosely on the surface 3 of the surface substrate 1 in the wound state.
  • the cuff electrode has at least one Complete winding, preferably multiple surface substrate windings are formed in order to obtain a long-term stable winding shape of the cuff electrode.

Landscapes

  • Health & Medical Sciences (AREA)
  • Neurology (AREA)
  • Neurosurgery (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Cardiology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Prostheses (AREA)
  • Electrotherapy Devices (AREA)

Abstract

L'invention concerne un implant médical se présentant sous la forme d'un manchon enveloppant destiné à être disposé autour d'un faisceau de fibres nerveuses, comprenant un substrat plat biocompatible de type film avec au moins une première section de substrat plat qui peut être convertie en une forme cylindrique creuse au moyen d'un processus d'enroulement dans une direction d'enroulement, qui est spécifiée par une forme définie qui est inhérente au matériau, autour d'un axe spatial et a une première extrémité de section de substrat plat qui repose contre une première surface de la première section de substrat plat dans l'état enroulé, ladite surface étant orientée de manière à faire face à une zone entourée radialement par la première section de substrat plat enroulée, et une seconde extrémité de section de substrat plat, qui se trouve à l'opposé de la première extrémité de section de substrat plat et qui est disposée latéralement à une seconde surface de la première section de substrat plat, ladite seconde surface étant orientée à l'opposé de la première surface, dans l'état enroulé, ladite seconde surface étant orientée de façon à être tournée à l'opposé de la zone radialement entourée par la première section de substrat plat enroulée. Au moins une région de la première extrémité de section de substrat plat est reliée de manière monolithique à une seconde section de substrat plat qui repose contre la seconde surface de la première section de substrat plat dans l'état enroulé. L'invention est caractérisée en ce que chacune des première et seconde sections de substrat plat a la forme définie qui est inhérente au matériau avec une direction d'enroulement respective qui est orientée à l'opposé de la première extrémité de section de substrat plat.
EP23767837.0A 2022-09-07 2023-09-04 Implant médical sous la forme d'un manchon enveloppant Pending EP4583964A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022122699.9A DE102022122699B3 (de) 2022-09-07 2022-09-07 Medizinisches Implantat in Form einer Wickelmanschette
PCT/EP2023/074158 WO2024052274A1 (fr) 2022-09-07 2023-09-04 Implant médical sous la forme d'un manchon enveloppant

Publications (1)

Publication Number Publication Date
EP4583964A1 true EP4583964A1 (fr) 2025-07-16

Family

ID=87974343

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23767837.0A Pending EP4583964A1 (fr) 2022-09-07 2023-09-04 Implant médical sous la forme d'un manchon enveloppant

Country Status (6)

Country Link
US (1) US20260083961A1 (fr)
EP (1) EP4583964A1 (fr)
JP (1) JP2025528520A (fr)
CN (1) CN119855631A (fr)
DE (1) DE102022122699B3 (fr)
WO (1) WO2024052274A1 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4969468A (en) * 1986-06-17 1990-11-13 Alfred E. Mann Foundation For Scientific Research Electrode array for use in connection with a living body and method of manufacture
WO2002030508A2 (fr) * 2000-10-11 2002-04-18 Riso Ronald R Electrode nerveuse a manchon
US8452418B2 (en) * 2011-06-20 2013-05-28 The Regents Of The University Of California Neural probe array and method of use
DE102014014927A1 (de) 2014-10-07 2016-04-07 Neuroloop GmbH Implantierbare Elektrodenanordnung
WO2018175482A1 (fr) * 2017-03-22 2018-09-27 Verily Life Sciences Llc Fixation de réseau d'électrodes neuronales
DE102018207709A1 (de) 2018-05-17 2019-11-21 Neuroloop GmbH Vorrichtung zur extravasalen oder extraneuronalen Befestigung eines medizinischen Implantats in Art einer Wickelmanschette

Also Published As

Publication number Publication date
JP2025528520A (ja) 2025-08-28
US20260083961A1 (en) 2026-03-26
CN119855631A (zh) 2025-04-18
DE102022122699B3 (de) 2024-01-11
WO2024052274A1 (fr) 2024-03-14

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