Device for treating patients by brain stimulation, electronic component and use of the device and electronic component in medicine and medical treatment method

• US 20070135860A1
• Filed: 11/22/2006
• Published: 06/14/2007
• Est. Priority Date: 05/24/2004
• Status: Abandoned Application

• Current Assignee: Forschungszentrum Jã¼Lich GmbH (Bundesrepublik Deutschland)
• Original Assignee: Forschungszentrum Jã¼Lich GmbH (Bundesrepublik Deutschland)
• Inventors: Tass, Peter
• Application Number:
  US11/603,293
• Publication Number:
  US 20070135860A1
• Time in Patent Office: Days
• US Class Current: 607/45
• CPC Class Codes: A61N 1/36067 Movement disorders, e.g. tremor or Parkinson disease stimulating motor muscle A61N1/36003
• CPC Class Codes: A61N 1/36082 Cognitive or psychiatric applications, e.g. dementia or Alzheimer's disease

Abstract

A device for treating patients by brain stimulation and related electronic component and use of the device and of the electronic component in a medical treatment method. To achieve the brain stimulation result, a device includes at least one electrode for stimulating a brain region, at least one sensor for measuring an electrical signal, a control system which can detect the occurrence of a pathological feature of the electrical signal which was measured by the sensor and, when the pathological feature occurs, delivers at least one component from a group of stimulus sequences (a) through (d): (a) a short high-frequency pulse train, (b) a resetting short high-frequency pulse train followed by a further desynchronizing short high-frequency pulse train, (c) a resetting low-frequency sequence of a high-frequency pulse train followed by a desynchronizing high-frequency pulse train, or (d) a resetting single pulse followed by a short desynchronizing high-frequency pulse train to the electrode.

Claims

1. A device for treating patients having means for stimulating brain regions, the device comprising:

at least one electrode to stimulate a brain region,

at least one sensor to measure an electrical signal, and

control means for detecting the occurrence of a pathological feature of the electrical signal which was measured by the at least one sensor and, when the pathological feature occurs, delivers at least one component from the group of stimulus sequences (a) through (d),

(a) a short high-frequency pulse train,

(b) a short high-frequency pulse train followed by a further short high-frequency pulse train,

(c) a low-frequency sequence of short high-frequency pulse trains followed by a high-frequency pulse train, or

(d) a single pulse followed by a short high-frequency pulse train to the at least one electrode.

2. The device as claimed in claim 1, wherein the control means comprises

a control system which applies short high-frequency pulse trains which in each case comprises at least 2 to 100 single stimuli, and/or

a control system which applies high-frequency pulse trains which have a frequency of 50 to 250 Hz, and/or

a control system which applies high-frequency pulse trains of the same frequency with each high-frequency application, and/or

a control system which applies single stimuli which essentially have a neutral charge.

3. The device as claimed in claim 1 or 2, wherein the control means comprises a control system which applies high-frequency pulse trains which have an amplitude of the order of magnitude between 0 to 16 V, or a control system which applies high-frequency pulse trains which have an amplitude of the order of magnitude of between 2 to 7 V, or which applies high-frequency pulse trains of the same amplitude, or which applies high-frequency pulse trains, of which at least two high-frequency pulse trains have the same amplitude.

4. The device as claimed in claim 1 to 2, wherein the control means comprises

a control system which applies high-frequency pulse trains, wherein the resetting high-frequency pulse trains are stronger than the desynchronizing high-frequency pulse trains, or a control system which applies high-frequency pulse trains, wherein the resetting high-frequency pulse trains have a higher amplitude and/or a greater number of single pulses than the desynchronizing high-frequency pulse trains.

5. The device as claimed in claim 4, wherein the control means comprises

a control system which applies resetting high-frequency pulse trains which have an amplitude of from 0 to 16 V, or a control system which applies resetting high-frequency pulse trains which have an amplitude from 3 to 7 V, and/or

a control system which applies desynchronizing high-frequency pulse trains which have an amplitude of from 0 to 15 V, or a control system which applies desynchronizing high-frequency pulse trains which have an amplitude of from 2 to 6 V.

6. The device as claimed in claim 1 or 2, wherein the control means comprises

a control system which applies high-frequency pulse trains of single stimuli which have the same amplitude and/or the same duration, or

a control system which applies high-frequency pulse trains of single stimuli, of which at least two single stimuli have the same duration and/or the same amplitude.

7. The device as claimed in claim 1 or 2, wherein the control means comprises

a control system in which high-frequency pulse trains are applied, in which trains the duration of the single stimuli and/or the amplitude of the single stimuli and/or the intervals between the single stimuli are generated by deterministic and/or stochastic methods and/or by a combination of the two, and/or

a control system in which identical high-frequency pulse trains are used within a low-frequency sequence of high-frequency pulse trains, or a control system in which the duration of the single stimuli and/or the amplitude of the single stimuli and/or the intervals between the single stimuli are varied by deterministic and/or stochastic methods and/or a combination of the two within a low-frequency sequence of high-frequency pulse trains in the individual high-frequency pulse trains, and/or

a control system in which, in a multiple application of a stimulus consisting of a number of high-frequency pulse trains, the high-frequency pulse trains used are varied with respect to the duration of the single stimuli and/or the amplitude of the single stimuli and/or the intervals between the single stimuli by deterministic and/or stochastic methods and/or a combination of the two, and/or

a control system which generates a low-frequency sequence of 2 to 30 resetting short high-frequency pulse trains, or control system which generates a low-frequency sequence of 2 to 10 short resetting high-frequency pulse trains, and/or

a control system which, in the case of a repeated stimulus application, applies at least one component of the stimulus pattern consisting of the group of patterns (a), (b), (c) and (d), or a control system which varies the application of stimuli according to the patterns (a), (b), (c) and (d) in accordance with a stochastic and/or deterministic and/or combined stochastic/deterministic sequence, and/or

a control system which recognizes the disappearance of a pathological feature and switches off the pulse trains according to patterns (a) to (d) with the disappearance of the pathological feature, and/or

a control system with univariate data processing, and/or

a control system with multivariate and/or bivariate data processing, wherein at least one of the univariate, bivariate and multivariate data processing operates with methods of statistical physics, and, in particular, the method of statistical physics comes from the area of stochastic phase resetting, and/or

the electrode comprises at least two wires, wherein the electrode acts as pickup electrode, and/or

the sensor comprises an epicortical electrode, a depth electrode, a brain electrode, a muscle electrode, the electrode or at least one component of this group, and/or

the sensor is connected to the control means via an isolating amplifier, and/or

the electrode is connected to the control means via an isolating amplifier, and/or has means for preventing an overdriving of the isolating amplifier, wherein the means for preventing the overdriving of the isolating amplifier is a relay, a transistor or an electronic filter, and/or

the control means is telemetrically connected to the sensor, and/or

the control means has means for the DC-decoupled coupling-in of the stimuli via the electrode, wherein the means for the DC-decoupled coupling-in of the stimuli comprises an optical transmitter and an optical receiver which transmit signals to the electrode, and/or

the control means is connected to a telemetry transmitter, wherein the telemetry transmitter is connected to a telemetry receiver, and the telemetry receiver, is connected to means for displaying, processing and storing data, and the means for processing data comprises a univariate data processing, and the means for processing data comprises a multivariate and/or bivariate data processing, and wherein which the means for processing data, at least one of the univariate, bivariate and multivariate methods for data processing operates with methods of statistical physics, and the method of statistical physics comes from the area of stochastic phase resetting, and/or

the electrode and the sensor are comprised at least partially in one component.

9. The electronic component as claimed in claim 8, having the functions according to claim 2, and/or

comprising a univariate data processing, and/or

comprising a multivariate and/or bivariate data processing.

10. The electronic component as claimed in claim 9, wherein at least one of the univariate, bivariate and multivariate methods for data processing operates with methods of statistical physics.

11. The electronic component as claimed in claim 10, wherein

the method of statistical physics comes from the area of stochastic phase resetting, or

the component switches off the pulse with disappearance of the pathological feature.

12. A method for use in medicine of the device as recited in claim 1 or 2.

13. A method for use in medicine of the electronic component as recited in claim 8, 9, 10 or 11.

8. An electronic component, comprising:

a sensor; and

means for detecting the occurrence of a pathological feature of an electrical signal measured by the sensor and, when the pathological feature occurs, delivers at least one component from the group of control signals for (a) through (d),

(a) a short high-frequency pulse train,

(b) a short high-frequency pulse train followed by another short high-frequency pulse train,

(c) a low-frequency sequence of short high-frequency pulse trains followed by a high-frequency pulse train,

(d) a single pulse followed by a short high-frequency pulse train.

14. A method for treating neurological and/or psychiatric diseases in which pathologically synchronous neural activity is present, the method comprising:

applying with the occurrence of a pathological feature, at least one component from the group of stimulus patterns (a) through (d),

(a) a short high-frequency pulse train,

(b) a resetting short high-frequency pulse train followed by a further desynchronizing short high-frequency pulse train,

(c) a resetting low-frequency sequence of short high-frequency pulse trains followed by a desynchronizing high-frequency pulse train, or

(d) a resetting single pulse followed by a short desynchronizing high-frequency pulse train.

15. The method as claimed in claim 14, wherein

the stimulus sequences according to stimulus patterns (a) through (d) are switched off with disappearance of the pathological feature, and/or

the functions according to the operation of the device as recited in claim 2 are used, and/or

at least one component of the group of brain regions of the thalamic regions, nucleus subthalamicus, nucleus caudatus, nucleus ventralis intermedius thalami, nucleus accumbens, thalamus, hippocampus, focal centers, globus pallidum, cerebellum, capsula interna is activated with the stimuli, and/or

diseases from the group of Parkinson'"'"'s disease, Parkinson'"'"'s syndrome, epilepsy, dystonia, compulsive diseases, Alzheimer'"'"'s, depression, essential tremor, tremor with multiple sclerosis, tremor as a consequence of a stroke, other tissue damage or tumorous tissue damage are treated.