Linking Electrodes in Neurostimulation Programming

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Solution Overview

Problem

Current neurostimulation systems face challenges in efficiently programming stimulation parameter sets due to the large number of electrode combinations and complex pulse configurations, which can lead to incorrect lead placement and ineffective therapy, especially when multiple target stimulation sites are involved.

Innovation Solution

An external control device with a user interface and processor that allows for independent assignment and locking of stimulation amplitude values to specific electrodes, preventing variations in linked electrode sets while allowing global scaling, to maintain optimal current distribution and conserve total electrical current.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the number of electrodes and pulse configurations is increased to provide more stimulation parameter sets, then the versatility and adaptability of the neurostimulation system is improved, but the device complexity and difficulty of programming increases

Engineering Contradiction:

Improvestimulation parameter setsVSAvoidprogramming complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The electrode array is divided into multiple independently controllable electrode groups or segments. Each electrode can be independently programmed with specific polarity (anode, cathode, or off) and stimulation amplitude, allowing complex stimulation patterns to be created by combining simpler electrode configurations rather than requiring a single complex programming system

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system dynamically adjusts stimulation parameters during operation, allowing real-time modification of electrode polarities and amplitude distributions. This enables the system to adapt to different therapeutic needs without requiring complete reprogramming, reducing the effective complexity of programming while maintaining high versatility

Inventive Principle:

Principle #15Dynamics

2Adaptability or versatility

If independent control of current distribution to multiple electrodes is implemented, then the adaptability of stimulation configurations is improved, but the ease of operation deteriorates due to the large number of parameters to manage

Engineering Contradiction:

Improveelectrode configurationsVSAvoidprogramming ease

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

Multiple electrode control functions are merged into a unified programming interface that allows simultaneous management of electrode polarities, amplitudes, and configurations. The system combines individual electrode control with preset configuration templates, enabling operators to manage complex multi-electrode systems through integrated controls rather than separate adjustments

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The system implements parameter linking and constraint mechanisms where changing one parameter automatically adjusts related parameters to maintain optimal current distribution. This reduces the number of independent parameters the operator must manage manually, as the system automatically coordinates multiple parameters to achieve desired stimulation patterns

Inventive Principle:

Principle #35Parameter changes

3Adaptability or versatility

If the number of stimulation parameter sets is increased to cover multiple target sites, then the adaptability is improved, but the loss of time for programming and lead repositioning increases

Engineering Contradiction:

Improvetarget site coverageVSAvoidprogramming time

Core Design Contradiction:

Adaptability or versatilityVSLoss of time

Solution Approach 1:

The system provides pre-configured stimulation parameter sets and electrode configurations that are prepared in advance for common therapeutic scenarios and multiple target sites. These preset configurations can be quickly selected and activated without requiring de novo programming, significantly reducing programming time while maintaining the ability to cover multiple target sites through appropriate preset selection

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The electrode array and control system are designed with universal applicability to multiple target sites and therapeutic indications. A single electrode configuration can serve multiple functions by adjusting polarity and amplitude distributions, eliminating the need for separate dedicated configurations for each target site and reducing the time required to adapt between different therapeutic goals

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS10964431B2Technique for linking electrodes together during programming of neurostimulation system

Publication Date: 2021.03.30 BOSTON SCI NEUROMODULATION CORP

AI summary

An external control device for use with a neurostimulator coupled to a plurality of electrodes capable of conveying electrical stimulation energy into tissue in which the electrodes are implanted. The external control device comprises a user interface including at least one control element, a processor configured for independently assigning stimulation amplitude values to a first set of the electrodes, for linking the first set of electrodes together in response to the actuation of the at least one control element, and for preventing the stimulation amplitude values of the first linked set of electrodes from being varied relative to each other, and output circuitry configured for transmitting the stimulation amplitude values to the neurostimulator.