Selection of neurostimulator parameter configurations using decision trees
First Claim
1. A computer-readable medium containing instructions, said instructions comprising:
- algorithmic instructions that define a decision tree that comprises a plurality of nodes and branches and defines a hierarchy of possible parameter configurations for a neurostimulator, wherein each node defines an alternative parameter configuration from each of the other nodes, and each branch links one of the nodes to another of the nodes; and
instructions to cause a processor to;
select a first parameter configuration for the neurostimulator;
receive an indication of observed efficacy of the first parameter configuration;
select a branch of the decision tree based on the indication of observed efficacy and a position of the first parameter configuration within the decision tree; and
select a second parameter configuration for the neurostimulator based on the selected branch of the decision tree.
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Abstract
A selection of parameter configurations for a neurostimulator using decision trees may be employed by a programming device to allow a clinician or other user to select parameter configurations, and then program an implantable neurostimulator to deliver therapy using the selected parameter configurations. The programming device executes a parameter configuration search algorithm to guide the clinician in selection of parameter configurations. The search algorithm relies on a decision tree to identify optimum parameter configurations. A decision tree is useful in classifying observations in a data set based upon one or more attributes or fields within the data. The data set includes parameter configurations matched with observed ratings of efficacy on patients of a similar indication. The learned attribute, on which classification occurs, will be the optimum parameter configuration for a set of rated configurations used to produce the classification. The decision trees may be especially useful in identifying electrode configurations.
373 Citations
37 Claims
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1. A computer-readable medium containing instructions, said instructions comprising:
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algorithmic instructions that define a decision tree that comprises a plurality of nodes and branches and defines a hierarchy of possible parameter configurations for a neurostimulator, wherein each node defines an alternative parameter configuration from each of the other nodes, and each branch links one of the nodes to another of the nodes; and instructions to cause a processor to; select a first parameter configuration for the neurostimulator; receive an indication of observed efficacy of the first parameter configuration; select a branch of the decision tree based on the indication of observed efficacy and a position of the first parameter configuration within the decision tree; and select a second parameter configuration for the neurostimulator based on the selected branch of the decision tree. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A system comprising:
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a memory containing algorithmic instructions that define a decision tree, the decision tree comprising a plurality of nodes and branches and defining a hierarchy of possible parameter configurations for a neurostimulator to guide in the selection of parameter configurations, wherein each node defines an alternative parameter configuration from each of the other nodes and each branch links one of the nodes to another of the nodes; and a processor programmed to; select a first parameter configuration for the neurostimulator; receive an indication of observed efficacy of the first parameter configuration; select a branch of the decision tree based on the indication of observed efficacy and a position of the first parameter within the decision tree; and select a second parameter configuration for the neurostimulator based on the selected branch of the decision tree. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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Specification