FR2541120A1 - IMPLANTABLE STIMULATOR OF THE CENTRAL NERVOUS SYSTEM - Google Patents

Abstract

A. IMPLANTABLE STIMULATOR OF THE CENTRAL NERVOUS SYSTEM. B. STIMULATOR CHARACTERIZED IN THAT A CONICAL OPENING 8 IS PROVIDED AT THE CENTER OF THE BODY 1 OF THIS STIMULATOR, A FIXING CAP 5 BEING DRILLED WITH A CONICAL OPENING ALLOWING THE PASSAGE OF A STIMULATION ELECTRODE 4, THE CAVITY 2 OF HOUSING OF THE UNUSED LENGTH OF STIMULATION ELECTRODE 4 BEING COVERED WITH A COVER 3. C. THE INVENTION APPLIES TO AN ELECTRODE STIMULATOR TO BE IMPLANTED IN THE HUMAN BODY, IN PARTICULAR IN THE CENTRAL NERVOUS SYSTEM.

Description

Implantable stimulator of the central nervous system ".

  An implantable pacemaker of the central nervous system or any other organ of the human body The shape of this stimulator, as well as the shape of the stimulating electrode, are designed

  so that the pacemaker can implement any

  be the stimulated structure, and for example in the case of

  brain, on the patient's skull above an opening

  this opening can be used both for the introduction of the stimulation element and for the

attaching the stimulator.

  Stimulators of the central nervous system

  tral currently known do not allow, because of their construction, a very similar implantation of the stimulated structure, and require, particularly in the case of stimulation of parts of the brain,

  relatively complicated surgical operations, over-

  everything to introduce the stimulation electrode This

  used so far requires a lot of time because of the need to implant the stimulator first

  suitably in the patient's chest, and then

  then draw the stimulation electrode under the skin of the neck and skull to reach the trephination opening and pass through this last to reach a

given structure of the brain.

  It is then necessary to connect the electrode to the stimulator The excess electrode length is arranged in loops under the skin The electrode

  In this case, stimulation is caused by the forces

  neck and head, these efforts leading to

  malfunctions due to breaks and

  very complicated after the operation This operation requires at least two mutually connected surgical wounds, under the skin, through a tunnel leading to the

chest to the skull.

  The invention aims to create a stimulus

  nervous system capable of performing trans-

  planting directly above a trenches opening

  breadth, where the stimulation electrode is able to

  pass simultaneously to the stimulated structure

  tive. For this purpose, the invention relates to a pacemaker of the central nervous system or other organ of the human body, comprising an oval-shaped or disk-shaped body provided with an inner housing cavity of the unused length of stimulation electrode , this length depending on the distance at which the stimulated structure is located, stimulator characterized in that a conical opening is provided in the center of the body of this stimulator, a fixing plug being introduced into this conical opening and the stopper being pierced a conical aperture for passing a stimulation electrode and a conical stuffing pad with a groove for stabilizing the stimulation electrode, the housing cavity for the unused stimulating electrode length , being covered

a hood.

  The solution of using a

  emulator of the central nervous system presenting by

  example in the form of a convex disk offering the pos-

  the ability to attach directly to the trepanation opening, allows for standardization of

  length of the stimulation electrode, a simplification

  tion of the surgical operation, and consequently

  reduce the stress applied to the patient. The problems and complications related to the mechanical stress of the stimulation electrode are completely eliminated, this constraint coming from the movements of

  the head The stimulation electrode can be of

  simple truction and therefore significantly lower thickness, which increases the reliability of the stimulation and significantly reduce the risk of damaging the brain during the introduction of the electrode. The invention will be described in detail by means of the attached single figure showing a view

  in elevation and sectional view of a possible form of

  showing the application of a stimulator according to the

  vention on the skull of a patient after implantation.

  Body 1 of the pacemaker of the nervous system

  central body or other organ of the human body has the shape of an oval, a disc or a lens This body has a cavity 2 of housing of a certain unused length of stimulation electrode 4, this length dependent the distance to which the structure is located

  stimulated The pacemaker has at its center a

  conical opening 8 in which is introduced a plug of

  fastener 5 provided with an axial aperture conical in the -

  which stimulating electrode 4 passes, as well as a conical packing lining 7 carrying a groove 9 for stabilizing the stimulation electrode 4 La

  cavity 2 housing the stimulating electrode length

  4 in excess, is equipped with a hood 3 preventing

  any penetration of liquids from the human body.

Claims (1)

R E V E N D I C A T I O N   Stimulator of the central nervous system or other organ of the human body, comprising an oval-shaped or disk-shaped body provided with an inner housing cavity of the unused stimulating electrode length, which length depends on the distance at which the stimulated, stimulating structure is characterized in that a conical opening (8) is provided in the center of the body (1) of this stimulator, a fixing plug (5) being introduced into this conical opening and the plug (5). ) having a conical aperture for passing a stimulation electrode (4) and a conical stuffing pad (7) provided with a   groove (9) for stabilizing the stimulating electrode   lation (4), the cavity (2) housing the unused stimulation electrode length (4), being covered a hood (3).