Neuronano Ab

Hjalmar Bjartmarz

Jens Schouenborg

A method for optimization of a stimulation specificity of implanted electrodes in excitable tissue of a patient; wherein it comprises the step of electrical stimulation of excitable tissue between one or more combinations of electrode pairs in a cluster of electrodes, or electrical stimulation between one or more combinations of electrode pairs in two or more clusters of electrodes, wherein the two electrodes of said electrode pairs do not belong to the same cluster, wherein the electrical stimulation between different combinations of electrode pairs in a cluster of electrodes, or the electrical stimulation between different combinations of electrode pairs in two or more clusters of electrodes, creates a directed electrical field; wherein the effect of the directed electrical field is assessed after each stimulation step by registering information provided from the patient in view of a therapeutic effect, or by assigning each electrode pair a value related to said information provided by the patient; and choosing, based on the direction of the directed electrical field created, the electrode pair or pairs which give(s) rise to the most favorable assigned value.

Method and system for improving stimulation of excitable tissue

A method is provided for optimization of a stimulation specificity and an energy consumption of implanted electrodes in excitable tissue of a patient. The method may involve electrically stimulating excitable tissue between one or more combinations of electrode pairs in a cluster of electrodes, or electrically stimulating excitable tissue between one or more combinations of electrode pairs in two or more clusters of electrodes. The two electrodes of the electrode pairs may not belong to a same cluster. Each of the electrodes may be located on a physically separated entity, such that the tissue surrounds and separates each electrode from all other electrodes, thereby allowing tissue between the electrodes to be stimulated. An electrode pair or pairs which give rise to a lowest energy consumption while still giving a therapeutic effect may be chosen. Alternatively, each electrode pair may be assigned a value related to the information provided by the patient and the energy consumption, and the electrode pair or pairs which give(s) rise to a most favorable assigned value may be chosen.

A method for optimization of the stimulation pattern of a set of implanted electrodes in excitable tissue of a patient is disclosed, wherein it comprises the steps of: (a) choosing a first group of a certain number of from said set of implanted electrodes, (b) stimulating the excitable tissue electrically by said first group of electrodes, (c) registering information provided by the patient, (d) assigning each electrode of said first group of electrodes a value related to said information, wherein these steps are repeated for one or more further groups of said certain number of electrodes chosen from said set of implanted electrodes, wherein each electrode may be included in one or several groups, wherein the total assigned value for each electrode is calculated, and wherein electrodes having a total assigned value exceeding a predetermined value or a predetermined number of the electrodes having the highest total assigned value are chosen to be included in said stimulation pattern, as well as a method for treatment or alleviation of a disease or condition by use of a set of electrodes whose stimulation pattern has been optimized with said method, and a system for optimization of the stimulation pattern.

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Höllviken, Sweden

Hjalmar Bjartmarz