Closed loop neuromodulation for suppression of epileptic activity
First Claim
Patent Images
1. A method comprising:
- delivering electrical stimuli having a pulse pattern to a structure of a brain, wherein delivering stimuli having the pulse pattern includes delivering a first stimulus and a second stimulus to the structure;
sensing response field potentials evoked by the stimuli delivered to the structure wherein the sensed response field potentials are represented in a sensed signal and wherein sensing response field potentials includes measuring a change in a response field potential to the second stimulus as compared to the response field potential to the first stimulus; and
storing the sensed signal in memory.
0 Assignments
0 Petitions
Accused Products
Abstract
A system and method for predicting the likelihood of occurrence of an impending neurological episode. Electrical stimuli are delivered to a structure of the brain. Response field potentials evoked by the stimuli are sensed. Analysis of these field potentials allows for predictions as to the occurrence of an impending, but not yet occurring, neurological disorder. In one example, a measurement of change in response pulses is used to determine a level of interconnectivity in the structures of the brain. The level of functional interconnectivity is used in predicting the occurrence of the neurological event. An example of such a neurological event includes an epileptic seizure.
-
Citations
101 Claims
-
1. A method comprising:
-
delivering electrical stimuli having a pulse pattern to a structure of a brain, wherein delivering stimuli having the pulse pattern includes delivering a first stimulus and a second stimulus to the structure; sensing response field potentials evoked by the stimuli delivered to the structure wherein the sensed response field potentials are represented in a sensed signal and wherein sensing response field potentials includes measuring a change in a response field potential to the second stimulus as compared to the response field potential to the first stimulus; and storing the sensed signal in memory. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A method comprising:
-
delivering electrical stimuli to a structure of a brain wherein delivering stimuli to the structure includes delivering the stimuli to an afferent fiber or efferent fiber system in the structure of the brain; sensing response field potentials evoked by the stimuli delivered to the structure wherein the sensed response field potentials are represented in a sensed signal; and storing the sensed signal in memory.
-
-
12. A method comprising:
-
implanting one or more electrodes in a structure of a brain wherein implanting one or more electrodes includes implanting a lead that includes the one or more electrodes in the structure of the brain; delivering electrical stimuli having a first pulse pattern to the structure through the electrodes, wherein the first pulse pattern includes pairs of two or more electrical stimuli; sensing response field potentials evoked by the stimuli delivered to the structure wherein the sensed response field potentials are represented in a sensed signal; and
storing the sensed signal in memory.
-
-
13. A method comprising:
-
implanting one or more electrodes in a structure of a brain wherein implanting one or more electrodes includes implanting a lead that includes the one or more electrodes in the structure of the brain; delivering electrical stimuli having a first pulse pattern to the structure through the electrodes, wherein delivering stimuli having the first pulse pattern includes delivering a first stimulus and a second stimulus to the structure; sensing response field potentials evoked by the stimuli delivered to the structure wherein the sensed response field potentials are represented in a sensed signal; and
storing the sensed signal in memory, wherein sensing response field potentials includes measuring a change in a response field potential to the second pulse as compared to the response field potential to the first pulse. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22)
-
-
23. A method comprising:
-
implanting one or more electrodes in a structure of a brain wherein implanting one or more electrodes includes implanting a lead that includes the one or more electrodes in the structure of the brain; delivering electrical stimuli to the structure through the electrodes, wherein delivering stimuli to the structure includes delivering the stimuli to an afferent fiber or an efferent fiber system in the structure of the brain; sensing response field potentials evoked by the stimuli delivered to the structure wherein the sensed response field potentials are presented in a sensed signal; and
storing the sensed signal in memory.
-
-
24. A system comprising:
-
one or more electrodes implantable in a structure of a brain; a signal processor/generator coupled to the electrodes, wherein the signal generator includes; an electrical pulse generator to deliver electrical stimuli to the brain via the electrodes implanted in the structure of the brain; a memory means for receiving from the electrodes a sensed signal representing the response field potentials to the electrical stimuli, the memory to store the sensed signal; and wherein the electrical pulse generator repeatedly delivers the first pulse pattern at a repetition frequency of 1 second to 30 minutes.
-
-
25. A system comprising:
-
one or more electrodes implantable in a structure of a brain; a signal processor/generator coupled to the electrodes, wherein the signal generator includes; an electrical pulse generator to deliver electrical stimuli to the brain via the electrodes implanted in the structure of the brain; a memory means for receiving from the electrodes a sensed signal representing the response field potentials to the electrical stimuli, the memory to store the sensed signal; and wherein the electrical pulse generator repeatedly delivers the first pulse pattern at a repetition frequency of 1 minute to 10 minutes.
-
-
26. A system comprising:
-
means for delivering electrical stimuli to a structure of a brain including means for delivering stimuli having a pulse pattern to the structure; means for sensing response field potentials evoked by the stimuli delivered to the structure; means for staring the sensed response field potentials; and wherein the means for delivering stimuli having the pulse pattern includes means for delivering a first stimulus and a second stimulus to the structure, and the means for sensing response field potentials includes means for measuring a change in a response field potential to the second stimulus as compared to the response field potential to the first stimulus.
-
-
27. A system comprising:
-
means for implanting one or more electrodes in a structure of a brain; means for delivering electrical stimuli to the structure through the electrodes wherein the means for delivering stimuli includes means for delivering stimuli having a first pulse pattern; means for sensing response field potentials evoked by the stimuli delivered to the structure; means for storing the response field potentials; and wherein the means for delivering stimuli having the first pulse pattern includes means for delivering a first stimulus and a second stimulus to the structure, and the means for sensing response field potentials includes means for measuring a change in a response field potential to the second pulse as compared to the response field potential to the first pulse.
-
-
28. A system comprising:
-
one or more electrode means implantable in a structure of a brain; a signal processor/generator means coupled to the electrode means, wherein the signal generator means includes; an electrical pulse generator means to deliver electrical stimuli having a first pulse pattern to the brain via the electrode means implanted in the structure of the brain; a storage means to receive via the electrode means response field potentials to the electrical stimuli delivered with the electrical pulse generator means, where the storage means receives response field potentials through the electrode means and stores the response field potentials; and wherein the electrical pulse generator means delivers the first pulse pattern that includes a first stimulus and a second stimulus, and the signal processor means measures changes in the response field potentials to the second stimulus as compared to the response field potentials to the first stimulus.
-
-
29. A method comprising:
-
delivering electrical stimuli to a structure of a brain; sensing response field potentials evoked by the stimuli delivered to the structure wherein the sensed response field potentials are represented in a sensed signal; analyzing the sensed response field potentials to predict the likelihood of occurrence of a neurological disorder; and storing the sensed signal in memory. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
-
-
41. A method comprising:
-
implanting one or more electrodes in a structure of a brain; delivering electrical stimuli to the structure through the electrodes; sensing response field potentials evoked by the stimuli delivered to the structure; processing the response field potentials to predict the likelihood of occurrence of a neurological disorder based on the sensed response field potentials; and storing the sensed response field potentials in memory. - View Dependent Claims (42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58)
-
-
59. A system comprising:
-
one or more electrodes implantable in a structure of a brain; a signal processor/generator coupled to the electrodes, wherein the signal generator includes; an electrical pulse generator to deliver electrical stimuli to the brain via the electrodes implanted in the structure of the brain; a signal analyzer to receive via the electrodes response field potentials to the electrical stimuli delivered with the electrical pulse generator, where the signal analyzer receives response field potentials through the electrodes and predicts the likelihood of the occurrence of a neurological disorder based on the sensed response field potentials; and a memory to receive from the electrodes a sensed signal representing the response field potentials to the electrical stimuli, the memory to store the sensed signal. - View Dependent Claims (60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71)
-
-
72. A system comprising:
-
means for delivering electrical stimuli to a structure of a brain; means for sensing response field potentials evoked by the stimuli delivered to the structure; means for analyzing the sensed response field potentials to predict the likelihood of occurrence of a neurological disorder; and means for storing the sensed response field potentials. - View Dependent Claims (73, 74, 75, 76, 77, 78, 79, 80)
-
-
81. A system comprising:
-
means for implanting one or more electrodes in a structure of a brain; means for delivering electrical stimuli to the structure through the electrodes; means for sensing response field potentials evoked by the stimuli delivered to the structure; means far processing the response field potentials to predict the likelihood of occurrence of a neurological disorder based on the sensed response field potentials; and means for storing the response field potentials. - View Dependent Claims (82, 83, 84, 85, 86, 87, 88, 89, 90)
-
-
91. A system comprising:
-
one or more electrode means implantable in a structure of a brain; a signal processor/generator means coupled to the electrode means, wherein the signal generator means includes; an electrical pulse generator means to deliver electrical stimuli to the brain via the electrode means implanted in the structure of the brain; a signal analyzer means to receive via the electrode means response field potentials to the electrical stimuli delivered with the electrical pulse generator means, where the signal analyzer means receives response field potentials through the electrode means and predicts the likelihood of the occurrence of a neurological disorder based on the sensed response field potentials; and a storage means to receive via the electrode means response field potentials to the electrical stimuli delivered with the electrical pulse generator means, where the storage means receives response field potentials trough the electrode means and stores the response field potentials. - View Dependent Claims (92, 93, 94, 95, 96, 97, 98, 99, 100, 101)
-
Specification