CS230048B1 - Implatible stimulator of central neuro system - Google Patents

Abstract

A stimulation electrode assembly for the central nervous system enabling its situating directly above a trepanation opening, consists of an oval or disc shaped body 1 having a void 2 containing a length of conductive electrode material, a portion 4 of which is drawn out therefrom directly to engage the stimulated structure, the portion being held in place by conical portions 5, 7 of the body. A single opening of the skull or of another part of the human body is required for the implantation. <IMAGE>

Description

The present invention relates to an implantable central nervous system stimulator or other organs of the human body in which it solves the construction of the stimulator together with the construction of the stimulation electrode such that the stimulator can be implanted directly into the immediate proximity of the stimulated structure, e.g. · A patient above the shaking hole, which can serve both to insert the pacing lead and to fix the pacemaker.

The known central nervous system stimulators, by their design, do not allow implantation in the immediate vicinity of the stimulated structure and require, particularly in the case of brain stimulation, very demanding surgical interventions / associated primarily with the insertion of the stimulation electrode. The method used so far is time consuming due to the need to first implant the stimulator itself on the patient's chest, then introduce a stimulation electrode to the subcutaneous throat and skull to and through the trepanation opening into a certain brain structure. Then · connect the lead to the pacemaker. The excess electrode length is stored in loops in the subcutaneous tissue. In this case, the pacing electrode is very stressed by neck and head movements, leading to breakage failure and other postoperative complications. This operation requires at least two surgical wounds interconnected by the subcutaneous chest-skull tunnel. .

The above-mentioned drawbacks are eliminated by the implantable central nervous system stimulator, which is based on the fact that in the center of the body there is a conical bore in which a fixation plug with an axial conical bore passes through the pacing · electrode and cone seal · The space for storing the excess length of the stimulation electrode is provided with a cap.

By designing a central nervous system stimulator in the shape of, for example, a convex disc with the possibility of its fixation directly in the trepanation opening, the length of the stimulation electrodes is unified, the surgery is significantly simplified and thus the patient's load is reduced. Problems and complications associated with mechanical stress on the pacing electrode during head movements are completely eliminated, making the pacing electrode simpler in construction and thus considerably thinner, increasing the reliability of pacing and reducing brain damage during insertion.

In the accompanying drawing, one possible solution according to the invention is shown, in section through the deposition of the stimulator on the patient's skull after implantation.

A central nervous system stimulator or other organs of the human body in the form of an oval, disk or lens has in its body 1 a space 2 for storing the unnecessary length of the stimulation electrode 4, which depends on the distance of the stimulated structures. The stimulator has a tapered bore 8 at its center, in which a fixation plug 5 is provided with an axial tapered bore through which the stimulation electrode 4 and a conical gland 7 with a groove 9 for stabilizing the stimulation electrode 4 are received. the electrode 4 is provided with a cap 3 against the ingress of body fluids.

Claims (1)

An implantable stimulator of the central nervous system or other organs of the human body with an oval-shaped or disc-shaped body in which space is provided for storing the unnecessary length of the stimulation electrode depending on the distance of the stimulated structures. a conical bore (8) receiving a fixation plug (5) with an axial conical bore through which the stimulation electrode (4) and the conical gland (7) with a groove (9) for the simulation electrode [4] are received, 2) is provided with a cap (3) for storing the excess length of the stimulation electrode [4].