A system for designing a therapy or for treating a gastrointestinal disorder or a condition associated with excess weight in a subject comprising at least one electrode configured to be implanted within a body of the patient and placed at a vagus nerve, the electrode also configured to apply therapy
A system for designing a therapy or for treating a gastrointestinal disorder or a condition associated with excess weight in a subject comprising at least one electrode configured to be implanted within a body of the patient and placed at a vagus nerve, the electrode also configured to apply therapy to the vagus nerve upon application of a therapy cycle to the electrode; an implantable neuroregulator for placement in the body of the patient beneath the skin layer, the implantable neuroregulator being configured to generate a therapy cycle, wherein the therapy cycle comprises an on time during which an electrical signal is delivered, the electrical signal comprising: a) a set of pulses applied at a first selected frequency of about 150-10,000 Hz, wherein each pulse of the set of pulses has a pulse width of at least 0.01 milliseconds and less than the period of the first selected frequency.
대표청구항▼
1. A system for treating a gastrointestinal disorder or a condition associated with excess weight in a subject in need thereof comprising: at least one electrode adapted to be placed at a vagus nerve and a second electrode adapted to be placed at a celiac nerve; an implantable neuroregulator configu
1. A system for treating a gastrointestinal disorder or a condition associated with excess weight in a subject in need thereof comprising: at least one electrode adapted to be placed at a vagus nerve and a second electrode adapted to be placed at a celiac nerve; an implantable neuroregulator configured to apply a therapy cycle to the electrode at the vagus nerve, wherein each therapy cycle at the vagus nerve comprises a) a high frequency burst of electrical signal having a first selected frequency of at least 1000 Hz, wherein the high frequency burst of electrical signals comprises one or more pulses that have a pulse width of about 0.01 milliseconds to about 0.09 milliseconds, and a current of about 0.1 to 20 mAmps; b) more than one burst having a low frequency, each burst having a second selected low frequency of at least 40 Hz and less than 150 Hz, wherein each of the bursts of low frequency electrical signals comprises one or more pulses that have a pulse width of about 0.05 microseconds to about 0.5 microseconds, a current of about 0.1 to 20 mAmps and a delay period between each burst; wherein the high frequency and low frequency are delivered during the same therapy cycle and at least partially downregulate activity on the vagus nerve; c) an on period of at least 2 minutes d) an off period, wherein the off period is selected to allow at least partial recovery of nerve activity; and configured to apply a therapy cycle to a celiac nerve, wherein each therapy cycle at the celiac nerve comprises an electrical signal having a frequency to upregulate the celiac nerve; an on period, and an off period. 2. The system according to claim 1, wherein a first burst of low frequency signal precedes the high frequency signal and a second burst of low frequency signal follows the high frequency signal. 3. The system according to claim 1, wherein the gastrointestinal disorder or condition is selected from the group consisting of obesity, hypertension, diabetes, and combinations thereof. 4. The system of claim 1, wherein the first selected frequency is selected from about 1000 to 5000 Hz. 5. The system of claim 1, wherein the one or more set of pulses has about 1-20 pulses. 6. The system of claim 1, wherein the low frequency electrical signal has a current amplitude of about 0.1 to 1 mAmp. 7. The system of claim 1, wherein the implantable neuroregulator is further configured to apply one or more therapy cycles to the vagus nerve in a treatment period. 8. The system of claim 7, wherein the treatment period is at least 6 hours. 9. The system of claim 7, wherein the total charge delivered to the vagus nerve during a therapy cycle is less than 0.2 coulombs. 10. The system of claim 9, wherein the total charge delivered to the vagus nerve during a therapy cycle is about 10 to 100,000 microcoulombs. 11. The system of claim 10, wherein the therapy cycle delivered to the celiac nerve has a frequency of less than 200 Hz. 12. The system of claim 11, wherein the therapy cycle delivered to the celiac nerve has an on time of at least 30 seconds. 13. The system of claim 11, wherein the therapy cycle delivered to the vagus nerve and to the celiac nerve are delivered at the same time. 14. A method of treating a gastrointestinal disorder or a condition associated with excess weight comprising: applying a therapy cycle to a vagus nerve comprising a) a high frequency burst of electrical signal having a first selected frequency of at least 1000 Hz, wherein the high frequency burst of electrical signals comprises one or more pulses that have a pulse width of about 0.01 milliseconds to about 0.09 milliseconds, and a current of about 0.1 to 20 mAmps; b) more than one burst having a low frequency, each burst having a second selected low frequency of at least 40 Hz and less than 150 Hz, wherein each of the bursts of low frequency electrical signals comprises one or more pulses that have a pulse width of about 0.05 microseconds to about 0.5 microseconds, a current of about 0.1 to 20 mAmps and a delay period between each burst; wherein the high frequency and low frequency are delivered during the same therapy cycle and at least partially downregulate activity on the vagus nerve; c) an on period of at least 2 minutes d) an off period, wherein the off period is selected to allow at least partial recovery of nerve activity; and applying a therapy cycle to a celiac nerve, wherein each therapy cycle at the celiac nerve comprises an electrical signal having a frequency to upregulate the celiac nerve; an on period, and an off period. 15. The method according to claim 14, wherein the gastrointestinal disorder or condition is selected from the group consisting of obesity, hypertension, diabetes, and combinations thereof. 16. The method according to claim 15, wherein the gastrointestinal disorder or condition is obesity. 17. The method according to claim 15, wherein the gastrointestinal disorder or condition is obesity with diabetes or hypertension. 18. The method of claim 14, wherein the first selected frequency is selected from about 1000 to 5000 Hz. 19. The method of claim 14, wherein the low frequency electrical signal has a current amplitude of about 0.1 to 1 mAmp. 20. The method of claim 14, further comprising applying one or more therapy cycles to the vagus nerve in a treatment period. 21. The method of claim 20, wherein the treatment period is at least 6 hours. 22. The method of claim 14, wherein the total charge delivered to the vagus nerve during a therapy cycle is less than 0.2 coulombs. 23. The method of claim 22, wherein the total charge delivered to the vagus nerve during a therapy cycle is about 10 to 100,000 microcoulombs. 24. The method of claim 14, wherein the therapy cycle delivered to the celiac nerve has a frequency of less than 200 Hz. 25. The method of claim 14, wherein the therapy cycle delivered to the celiac nerve has an on time of at least 30 seconds. 26. The method of claim 14, wherein the therapy cycle delivered to the vagus nerve and to the celiac nerve are delivered at the same time.
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