Method to enhance neural tissue operation

• US 8,506,469 B2
• Filed: 05/13/2009
• Issued: 08/13/2013
• Est. Priority Date: 05/13/2008
• Status: Expired due to Fees

• Current Assignee: Cerbomed GmbH (tVNS Technologies GmbH)
• Original Assignee: Cerbomed GmbH (tVNS Technologies GmbH)
• Inventors: Dietrich, Stefan, Beck, Christoph
• Primary Examiner(s): LACYK, JOHN P
• Application Number:
  US12/465,209
• Publication Number:
  US 20090287035A1
• Time in Patent Office: 1,553 Days
• Field of Search: 600 9- 15, 600/545, 128897-898, 607 45- 46, 607/55
• US Class Current: 600/9
• CPC Class Codes: A61N 1/36017 with leads or electrodes penetrating the skin
• CPC Class Codes: A61N 1/36025 for treating a mental or cerebral condition
• CPC Class Codes: A61N 1/36082 Cognitive or psychiatric applications, e.g. dementia or Alzheimer's disease
• CPC Class Codes: A61N 1/36114 Cardiac control, e.g. by vagal stimulation stimulating the heart A61N1/362

Abstract

The invention relates to a method for modulation, augmentation and/or stimulation of neural tissue and/or neural tissue related functionality with stimulating neural tissue and/or neural tissue related functionality with stimuli by which neural activity related local perfusion changes, electro-neuro-chemical, biochemical, neural modulative or neuroplastical responses and/or alterations in ‘metabolism supply lines-neural tissue’ interaction processes in vertebrates can be triggered and/or influenced.

Claims

1. A method for modulation, augmentation and/or stimulation of neural tissue and/or neural tissue related functionality, comprising:

attaching to the skin of the ear of a patient an acrylic electrode array housing including a sterling silver stimulation electrode and a reference electrode connected with carbon fibre wires to a stand-alone electrical nerve stimulator;

applying electrical stimuli transdermally at the pinna, wherein a monophasic-modified rectangle impulse with a pulse width of 250 ms, electrical current amplitude between 4 mA and 8 mA stimulation frequency of 25 Hz is used;

wherein the electrical stimuli applied transdermally at the pinna stimulate the Ramus auricularis Nervi vagi,-neural tissue and/or neural tissue related functionality, and trigger and/or influence neural activity related local perfusion changes;

performing a BOLD functional MRI session.

2. The method according to claim 1, wherein said stimuli are supplied to at least one means of stimulating neural tissue and/or neural tissue related functionality.

3. The method according to claim 2, wherein said at least one means of stimulating neural tissue and/or neural tissue related functionality is positioned in contact with or proximate to said neural tissue or neural tissue related functionality.

4. The method according to claim 1, wherein said stimuli directly or indirectly interact with a proximate axonal nerve system related target.

5. The method according to claim 1, wherein said stimuli generate local neurophysiological, neurovascular, neuroendocrine and/or neurobiochemical response.

6. The method according to claim 1, wherein said stimuli trigger effects in the brainstem, subcortical and/or cortical areas.

7. The method according to claim 1, wherein said stimuli enhance the performance of neuronal structures and related pathways in vertebrates and/or improve cognitive and emotional abilities and/or alleviate and/or heal neurological and/or neuropsychiatric disorders and/or symptoms resulting from underlying causes.

8. The method according to claim 2, wherein said at least one means of stimulating neural tissue and/or neural tissue related functionality is positioned in contact with or proximate to a nerve of a vertebrate, wherein said nerve comprises parasympathetic and/or sympathetic fibers the Nervus vagus, the Ramus auricuiaris Nervi vagi, and/or a trigeminal nerve.

9. The method according to claim 8, wherein said stimulation generates unidirectionally propagating action potentials.

10. The method according to claim 8, wherein said parasympathetic nerve fibers comprise afferent and/or efferent fibers.

11. The method according to claim 2, wherein said means of stimulating neural tissue and/or neural tissue rotated functionality comprises at least one stimulation electrode.

12. The method according to claim 7, wherein a stimulus amplitude and a stimulus frequency can be modulated and wherein a stimulation pulse comprises at least one of a plateau pulse width of adjustable duration, a rising and decaying trailing phase of adjustable duration and a charge recovery phase of adjustable duration.

13. The method according to claim 1, wherein said stimulation achieves a positive blood oxygenation level-dependent responses in the central nerve system and/or the brain of a vertebrate, wherein said responses take place in the left Locus coeruleus and/or the pontine tegrnenturn and/or the thalamus (left>

right) and/or anterior and medial thalamic nuclei and/or the Hippocampus and/or Nucleus paraventricularis and/or the posterior part of the putamen and/or the left prefrontal and/or superior-frontal cortex and/or bilateral postcentral gyrus and/or the left posterior cingulated gyrus and/or the left insula and/or Nucleus accumbens and/or the right cerebellar hemisphere.

14. A method for the treatment of neurological and/or neuropsychiatric disorder and/or symptoms resulting from underlying cause selected from the group consisting of Alzheimer disease, Parkinson disease, Tremor, major depression, bipolar disorders, anxiety, eating disorders, sleep disorders, pain, tinnitus, cardio-vascular disorders, artrial fibrillation, epilepsy, schizophrenia, addictive disorders, dementia, attention deficit disorders, premenstrual syndrome, obesity, spasticity, Tourette syndrome, dystonia, neurogenic and psychogenic bladder disorders, neurogenic and psychogenic defecation disorders, neurogenic and psychogenic sexual disorders, obsessive compulsive disorders with the method according to claim 1.

15. A method for enhancing cognitive and/or emotional abilities according to claim 1.

16. A method for the enhancement of productivity, attention, learning, concentration, awareness, vigilance, tranquillization, sedation, emotional assessment, valuation, emotional intelligence, decisive abilities, retentiveness and/or conversation according to claim 1.

17. The method of claim 1 for generating blood oxygenation level-dependent responses in higher order relay nuclei of vagal afferent pathways, wherein the method comprises one or more of the following steps:

generating propagating action potentials of the Ramus auricularis Nervi vagi by means of stimulation;

transmitting said propagating action potentials to pass through the Canaliculus mastoideus;

transmitting said propagating action potentials to pass the Ganglion rostrate;

transmitting said propagating action potentials to generate blood oxygenation level-dependent responses in the brainstem; and

transmitting said propagating action potentials to generate blood oxygenation level-dependent responses in the Thalamus.

18. The method according to claim 17, wherein said method for generating blood oxygenation level-dependent responses in higher order relay nuclei of vagal afferent pathways comprises means of influencing propagation of said action potentials towards subcortical and cortical brain areas associated with vagal and limbic pathways.

19. The method according to claim 1, wherein said stimuli are electrical stimuli applied transdermally at the tragus.