Device for locating the target spot of electrodes used for brain stimulation particularly deep brain stimulation

• US 20050154424A1
• Filed: 02/19/2003
• Published: 07/14/2005
• Est. Priority Date: 03/14/2002
• Status: Abandoned Application

• Current Assignee: Forschungszentrum Jã¼Lich GmbH (Bundesrepublik Deutschland)
• Original Assignee: Forschungszentrum Jã¼Lich GmbH (Bundesrepublik Deutschland)
• Inventors: Tass, Peter, Schiek, Michael
• Application Number:
  US10/507,957
• Publication Number:
  US 20050154424A1
• Time in Patent Office: Days
• US Class Current: 607/45
• CPC Class Codes: A61B 5/24 Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
• CPC Class Codes: A61B 5/388 Nerve conduction study, e.g. detecting action potential of peripheral nerves
• CPC Class Codes: A61N 1/36014 External stimulators, e.g. with patch electrodes external pacemakers A61N1/3625
• CPC Class Codes: A61N 1/36017 with leads or electrodes penetrating the skin
• CPC Class Codes: A61N 1/3603 Control systems

Abstract

The invention relates to a device for locating the target spot of electrodes used for brain stimulation, particularly deep brain stimulation. The inventive device comprises an isolation amplifier (1) which is provided with at least one electrode (2) and at least one sensor (3). In a preferred embodiment, said device is provided with a control unit (4) which puts the signals of the electrodes (2) and the sensor (3) in relation and controls the input of stimuli via the electrode. In a particularly preferred embodiment, the stimuli are launched in a galvanically decoupled manner by optical means. The inventive device makes it possible to find the target spot for brain-stimulating electrodes in a particularly precise and fast manner according to objectifiable parameters.

Claims

1. A device for localizing the target point of electrodes for brain stimulation, characterized in that it encompasses an isolation amplifier (1) with at least one electrode (2) and at least one sensor (3):

2. The device according to claim 1 characterized in that the sensor (3) is an EEG scalp electrode, an epicordical electrode, a deep electrode, a brain electrode, a peripheral electrode, a muscular electrode or a combination of at least two of these sensors (3).

3. The device according to claim 1 characterized in that the isolation amplifier (1) is connected to an evaluating unit (4).

4. The device according to claim 3 characterized in that the evaluating unit (4) comprises a univariate and bivariate or multivariate data processing.

5. The device according to claim 3 characterized in that it has means for visualizing the data.

6. The device according to claim 3 characterized in that it has a control unit (4, 4a) which enables the generation of stimuli through the electrode (2).

7. The device according to claim 3 characterized in that it effects the generation of stimuli through the electrode (2) through a coupling which has means for galvanic decoupling (5).

8. The device according to claim 7 characterized in that the galvanic decoupling means (5) encompasses an optical transmitter and an optical receiver which supplies signals to the electrode (2).

9. The device according to claim 3 characterized in that it has means for preventing overdriving of the isolating amplifier.

10. The device according to claim 9 characterized in that the means for preventing overdriving of the isolating amplifier (1) is a relay or a transistor or an electronic filter (9).

11. The device according to claim 1 characterized in that the electrode (2) and the sensor (3) are at least partly encompassed in the same component.

12. The use of the device according to claim 1 in the practice of medicine.