Stimulation electrode selection
First Claim
1. A system comprising:
- a plurality of electrodes;
a sensing module that senses a plurality of bioelectrical brain signals, each of the plurality of bioelectrical brain signals being sensed via at least one respective electrode of the plurality of electrodes; and
a processor that determines a frequency domain characteristic for each of the plurality of bioelectrical signals;
determines a plurality of relative values of the frequency domain characteristic, wherein each of the plurality of relative values is based on at least two of the frequency domain characteristics;
determines whether a first relative value of the plurality of relative values is greater than or less than at least one other relative value of the plurality of relative values;
in response to determining that the first relative value is greater than or less than the at least one other relative value, determines whether a second relative value of the plurality of relative values is greater than or less than another relative value of the plurality of relative values;
determines whether a target tissue site is positioned between two electrodes of the plurality of electrodes based on determining whether the first relative value is greater than or less than at least one other relative value and based on determining whether the second relative value is greater than or less than another relative value; and
selects at least one electrode of the plurality of electrodes for delivering stimulation to the patient based on determining whether the target tissue site is positioned between the two electrodes.
1 Assignment
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Accused Products
Abstract
Bioelectrical signals may be sensed within a brain of a patient with a plurality of sense electrode combinations. A stimulation electrode combination for delivering stimulation to the patient to manage a patient condition can be selected based on a frequency domain characteristic of the sensed bioelectrical signals. In some examples, a stimulation electrode combination is selected based on a determination of which of the sense electrodes are located closest to a target tissue site, as indicated by the one or more sense electrodes that sensed a bioelectrical brain signal with a relatively highest value of the frequency domain characteristic. In some examples, determining which of the sense electrodes are located closest to the target tissue site may include executing an algorithm using relative values of the frequency domain characteristic.
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Citations
67 Claims
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1. A system comprising:
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a plurality of electrodes; a sensing module that senses a plurality of bioelectrical brain signals, each of the plurality of bioelectrical brain signals being sensed via at least one respective electrode of the plurality of electrodes; and a processor that determines a frequency domain characteristic for each of the plurality of bioelectrical signals;
determines a plurality of relative values of the frequency domain characteristic, wherein each of the plurality of relative values is based on at least two of the frequency domain characteristics;
determines whether a first relative value of the plurality of relative values is greater than or less than at least one other relative value of the plurality of relative values;
in response to determining that the first relative value is greater than or less than the at least one other relative value, determines whether a second relative value of the plurality of relative values is greater than or less than another relative value of the plurality of relative values;
determines whether a target tissue site is positioned between two electrodes of the plurality of electrodes based on determining whether the first relative value is greater than or less than at least one other relative value and based on determining whether the second relative value is greater than or less than another relative value; and
selects at least one electrode of the plurality of electrodes for delivering stimulation to the patient based on determining whether the target tissue site is positioned between the two electrodes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A system comprising:
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a plurality of electrodes; a sensing module that senses a first group of bioelectrical signals in a brain of a patient via a first group of electrodes comprising at least one electrode from the plurality of electrodes;
a second group of bioelectrical signals in the brain of the patient via a second group of electrodes comprising at least one electrode from the plurality of electrodes;
a third group of bioelectrical signals in the brain of the patient via a third group of electrodes comprising at least one electrode from the plurality of electrodes; and
a fourth group of bioelectrical signals in the brain of the patient via a fourth group of electrodes comprising at least one electrode from the plurality of electrodes; anda processor that determines a frequency domain characteristic for each of the bioelectrical signals within each of the first, second, third, and fourth groups of bioelectrical signals;
determines a first relative value of the frequency domain characteristic based on the frequency domain characteristics for the first and second groups of bioelectrical signals;
determines a second relative value of the frequency domain characteristic based on the frequency domain characteristics for the second and third groups of bioelectrical signals;
determines a third relative value of the frequency domain characteristic based on the frequency domain characteristics for the third and fourth groups of bioelectrical signals;
determines a fourth relative value of the frequency domain characteristic based on the frequency domain characteristics for the first and fourth groups of bioelectrical signals;
if the fourth relative value is greater than the first, second, and third relative values, and if at least one of the first relative value is not greater than the second relative value or the second relative value is not greater than the third relative value, and if at least one of the first relative value is not less than the second relative value or the second relative value is not less than the third relative value, then the processor determines whether the first relative value is less than the third relative value; and
selects at least one electrode from at least one of the first, second, third, or fourth groups of electrodes for delivering stimulation to a target tissue site of the patient based on the first, second, third, and fourth relative values, wherein the processor selects the at least one electrode by selecting at least one electrode from at least one of the first or second groups of electrodes if the first relative value is less than the third relative value. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47)
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48. A system comprising:
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means for sensing a plurality of bioelectrical brain signals, each of the plurality of bioelectrical brain signals being sensed via at least one respective electrode of a plurality of electrodes; means for determining a frequency domain characteristic for each of the plurality of bioelectrical signals; means for determining a plurality of relative values of the frequency domain characteristics, wherein each of the plurality of relative values is based on at least two of the frequency domain characteristics; means for determining whether a first relative value of the plurality of relative values is greater than or less than at least one other relative value of the plurality of relative values; means for determining whether a second relative value of the plurality of relative values is greater than or less than another relative value of the plurality of relative values, in response to the determination that the first relative value is greater than or less than the at least one other relative value; means for determining whether a target tissue site is positioned between two electrodes of the plurality of electrodes based on the determination of whether the first relative value of the plurality of relative values is greater than or less than at least one other relative value and based on the determination of whether the second relative value is greater than or less than another relative value; and means for selecting at least one electrode of the plurality of electrodes for delivering stimulation to the patient based on the determination of whether the target tissue site is positioned between the two electrodes. - View Dependent Claims (49, 50, 51, 52, 53, 54)
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55. A system comprising:
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means for sensing a first group of bioelectrical signals in a brain of a patient via a first group of electrodes comprising at least one electrode from the plurality of electrodes, a second group of bioelectrical signals in the brain of the patient via a second group of electrodes comprising at least one electrode from the plurality of electrodes, a third group of bioelectrical signals in the brain of the patient via a third group of electrodes comprising at least one electrode from the plurality of electrodes, and a fourth group of bioelectrical signals in the brain of the patient via a fourth group of electrodes comprising at least one electrode from the plurality of electrodes; means for determining a frequency domain characteristic for each of the bioelectrical signals within each of the first, second, third, and fourth groups of bioelectrical signals; means for determining a first relative value of the frequency domain characteristic based on the frequency domain characteristics for the first and second groups of bioelectrical signals, a second relative value of the frequency domain characteristic based on the frequency domain characteristics for the second and third groups of bioelectrical signals, a third relative value of the frequency domain characteristic based on the frequency domain characteristics for the third and fourth groups of bioelectrical signals, a fourth relative value of the frequency domain characteristic based on the frequency domain characteristics for the first and fourth groups of bioelectrical signals; means for determining whether the first relative value is less than the third relative value if the fourth relative value is greater than the first, second, and third relative values, and if at least one of the first relative value is not greater than the second relative value or the second relative value is not greater than the third relative value, and if at least one of the first relative value is not less than the second relative value or the second relative value is not less than the third relative value; and means for selecting an electrode from at least one of the first, second, third, or fourth groups of electrodes for delivering stimulation to a target tissue site of the patient based on the first, second, third, and fourth relative values, wherein the means for selecting selects the at least one electrode by selecting at least one electrode from at least one of the first or second groups of electrodes if the first relative value is less than the third relative value. - View Dependent Claims (56, 57)
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58. A non-transitory computer-readable storage medium comprising instructions that cause a programmable processor to:
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determine a frequency domain characteristic for each bioelectrical signal of a plurality of bioelectrical signals sensed in a brain of a patient with at least one respective electrode of a plurality of electrodes; determine a plurality of relative values of the frequency domain characteristic, wherein each of the plurality of relative values is based on at least two of the frequency domain characteristics; determine whether a first relative value of the plurality of relative values is greater than or less than at least one other relative value of the plurality of relative values; in response to determining that the first relative value is greater than or less than the at least one other relative value, determine whether a second relative value of the plurality of relative values is greater than or less than another relative value of the plurality of relative values; determine whether a target tissue site is positioned between two electrodes of the plurality of electrodes based on the determination of whether the first relative value is greater than or less than at least one other relative value and based on the determination of whether the second relative value is greater than or less than another relative value; and select at least one electrode of the plurality of electrodes for delivering stimulation to the patient based on determining whether the target tissue site is positioned between the two electrodes. - View Dependent Claims (59, 60, 61)
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62. A non-transitory computer-readable storage medium comprising instructions that cause a programmable processor to:
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determine a frequency domain characteristic for each bioelectrical brain signal of a first group of bioelectrical signals in a brain of a patient with a first group of electrodes, a second group of bioelectrical signals in the brain of the patient with a second group of electrodes, a third group of bioelectrical signals in the brain of the patient with a third group of electrodes, and a fourth group of bioelectrical signals in the brain of the patient with a fourth group of electrodes; determine a first relative value of the frequency domain characteristic based on the frequency domain characteristics for the first and second groups of bioelectrical signals; determine a second relative value of the frequency domain characteristic based on the frequency domain characteristics for the second and third groups of bioelectrical signals; determine a third relative value of the frequency domain characteristic based on the frequency domain characteristics for the third and fourth groups of bioelectrical signals; determine a fourth relative value of the frequency domain characteristic based on the frequency domain characteristics for the first and fourth groups of bioelectrical signals; if the fourth relative value is greater than the first, second, and third relative values, and if at least one of the first relative value is not greater than the second relative value or the second relative value is not greater than the third relative value, and if at least one of the first relative value is not less than the second relative value or the second relative value is not less than the third relative value, then determine whether the first relative value is less than the third relative value; and select at least one electrode from the first, second, third, or fourth groups of electrodes for delivering stimulation to a target tissue site of the patient based on the first, second, third, and fourth relative values, wherein selecting the at least one electrode comprises selecting the at least one electrode from at least one of the first or second groups of electrodes if the first relative value is less than the third relative value. - View Dependent Claims (63, 64)
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65. A system comprising:
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a plurality of electrodes; a sensing module that senses a plurality of bioelectrical brain signals via at least one electrode of the plurality of electrodes; and a processor that determines a frequency domain characteristic for each of the plurality of bioelectrical signals;
determines a plurality of relative values of the frequency domain characteristic, wherein each of the plurality of relative values is based on at least two of the frequency domain characteristics;
determines that a first relative value of the plurality of relative values is less than a second relative value of the plurality of relative values, wherein the first relative value is based on frequency domain characteristics of a first pair of bioelectrical brain signals sensed by a first pair of electrodes, and wherein the second relative value is based on frequency domain characteristics of a second pair of bioelectrical brain signals sensed by a second pair of electrodes; and
selects at least one electrode of the first pair of electrodes for delivering stimulation to the patient based on determining that the first relative value is less than the second relative value.
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66. A system comprising:
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means for determining a frequency domain characteristic for each bioelectrical brain signal of a plurality of bioelectrical signals sensed in a brain of a patient with a respective electrode; means for determining a plurality of relative values of the frequency domain characteristic, wherein each of the plurality of relative values is based on at least two of the frequency domain characteristics; means for determining that a first relative value of the plurality of relative values is less than a second relative value of the plurality of relative values, wherein the first relative value is based on frequency domain characteristics of a first pair of bioelectrical brain signals sensed by a first pair of electrodes, and wherein the second relative value is based on frequency domain characteristics of a second pair of bioelectrical brain signals sensed by a second pair of electrodes; and means for selecting at least one electrode of the first pair of electrodes for delivering stimulation to the patient based on determining that the first relative value is less than the second relative value.
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67. A non-transitory computer-readable storage medium comprising instructions that cause a programmable processor to:
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determine a frequency domain characteristic for each bioelectrical brain signal of a plurality of bioelectrical signals sensed in a brain of a patient with a respective electrode; determine a plurality of relative values of the frequency domain characteristic, wherein each of the plurality of relative values is based on at least two of the frequency domain characteristics; determine that a first relative value of the plurality of relative values is less than a second relative value of the plurality of relative values, wherein the first relative value is based on frequency domain characteristics of a first pair of bioelectrical brain signals sensed by a first pair of electrodes, and wherein the second relative value is based on frequency domain characteristics of a second pair of bioelectrical brain signals sensed by a second pair of electrodes; and select at least one electrode of the first pair of electrodes for delivering stimulation to the patient based on determining that the first relative value is less than the second relative value.
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Specification