System and method for providing percutaneous electrical therapy
First Claim
1. A method of providing percutaneous electrical therapy to a patient having a body, the method comprising:
- percutaneously inserting an electrode into the patient; and
applying an electrical signal between the electrode and the patient'"'"'s body at a plurality of frequencies that automatically vary over a range having a minimum frequency of at most about 20 Hz and having a maximum frequency of at least about 40 Hz.
2 Assignments
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Accused Products
Abstract
A system and method for providing percutaneous electrical nerve stimulation therapy to a patient renders the therapy effective for a large patient population and a broad range of patient conditions. The method includes the steps of inserting an electrode into the patient and applying an electrical signal between the electrode and the patient'"'"'s body at a plurality of frequencies that automatically vary over the range of frequencies. The range of frequencies may have a minimum frequency of at most about 20 Hz and a maximum frequency of at least about 40 Hz. In addition, the electrical signal may be compensated for changes in frequency. The compensation may be in the form of amplitude adjustment or pulse with adjustment to provide effective signal energy over the entire range of applied frequencies.
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Citations
81 Claims
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1. A method of providing percutaneous electrical therapy to a patient having a body, the method comprising:
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percutaneously inserting an electrode into the patient; and
applying an electrical signal between the electrode and the patient'"'"'s body at a plurality of frequencies that automatically vary over a range having a minimum frequency of at most about 20 Hz and having a maximum frequency of at least about 40 Hz. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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22. The method of claim 18 wherein adjusting the amplitude comprises adjusting the amplitude of current of the electrical signal in relation to the frequency of the electrical signal.
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23. The method of claim 18 wherein adjusting the amplitude comprises adjusting the amplitude of voltage of the electrical signal in relation to the frequency of the electrical signal.
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24. The method of claim 17 wherein compensating the electrical signal comprises adjusting the duration of pulses comprising the electrical signal.
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25. The method of claim 24 wherein adjusting the duration of pulses includes adjusting the duration of the pulses in an inverse relation to the frequency of the electrical signal.
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26. The method of claim 24 wherein adjusting the duration of pulses includes adjusting the duration of the pulses in inverse relation to the square root of the frequency of the electrical signal.
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27. The method of claim 24 wherein adjusting the duration of pulses includes adjusting the duration of the pulses in accordance with the formula:
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28. A system for providing percutaneous electrical therapy to a patient having a body, the system comprising:
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electrode means percutaneously insertable into the patient; and
signal generating means for applying an electrical signal between the electrode means and the patient'"'"'s body, the signal generating means including frequency varying means for applying the electrical signal between the electrode means and the patient'"'"'s body at a plurality of frequencies that automatically vary over a range having a minimum frequency of at most about 20 Hz and having a maximum frequency of at least about 40 Hz. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54)
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49. The system of claim 46 wherein the compensating means adjusts the amplitude of the electrical signal in relation to the frequency of the electrical signal.
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50. The system of claim 46 wherein the compensating means adjusts the amplitude of the voltage of the electrical signal in relation to the frequency of the electrical signal.
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51. The system of claim 44 wherein the compensating means adjusts duration of pulses comprising the electrical signal.
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52. The system of claim 44 wherein the compensating means adjusts the duration of the pulses in an inverse relation to the frequency of the electrical signal.
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53. The system of claim 44 wherein the compensating means adjusts the duration of the pulses in inverse relation to the square root of the frequency of the electrical signal.
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54. The system of claim 44 wherein the compensating means adjusts the duration of the pulses in accordance with the formula:
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55. A system for providing percutaneous electrical therapy to a patient having a body, the system comprising:
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at least one electrode percutaneously insertable into the patient; and
a signal generator adapted to be coupled between the at least one electrode and the patient'"'"'s body and that generates an electrical signal at a plurality of frequencies that automatically vary over a range of frequencies having a minimum frequency of at most about 20 Hz and having a maximum frequency of at least about 40 Hz. - View Dependent Claims (56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81)
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76. The system of claim 73 wherein the signal generator adjusts the amplitude of the current of the electrical signal in relation to the frequency of the electrical signal.
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77. The system of claim 73 wherein the signal generator adjusts the amplitude of the voltage of the electrical signal in relation to the frequency of the electrical signal.
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78. The system of claim 71 wherein the signal generator adjusts duration of the pulses comprising the electrical signal for changes in frequency of the electrical signal.
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79. The system of claim 71 wherein the signal generator adjusts the duration of the pulses in an inverse relation to the frequency of the electrical signal.
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80. The system of claim 71 wherein the signal generator adjusts the duration of the pulses in inverse relation to the log of the frequency of the electrical signal.
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81. The system of claim 71 wherein the signal generator adjusts the duration of the pulses in accordance with the formula:
Specification