Neural Stimulator Lead Testing for Rapid Placement Assessment
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Solution Overview
Problem
Existing neural modulation systems face challenges in accurately and efficiently positioning leads near neural targets during implantation, requiring lengthy surgical procedures due to the complexity of available electrodes and modulation parameter sets, leading to increased time and costs.
Innovation Solution
A neural stimulator connected to leads with multiple electrodes uses preset programs to test each electrode with equal amounts of cathodic and anodic energy, evenly fractionalizing energy contributions across active electrodes, allowing quick determination of effective lead placement without the need for field steering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple electrodes and complex modulation parameter sets are used to achieve accurate neural target positioning, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent divides the complex electrode array into multiple sub-arrays or groups that can be independently controlled. Each sub-array can be individually activated to create simplified stimulation patterns, making it easier to identify effective lead positioning without having to manage all electrodes simultaneously. This segmentation reduces the cognitive load on clinicians while maintaining the ability to achieve precise neural target coverage.
2Measurement precision
If comprehensive electrode testing is performed to ensure accurate lead placement, then measurement precision is improved, but loss of time increases
Solution Approach 1:
The patent incorporates preliminary testing protocols that are integrated into the implantation workflow, allowing for rapid assessment of lead positioning effectiveness. The system pre-configures testing parameters and automatically executes evaluation sequences, eliminating the need for lengthy manual testing procedures. This enables clinicians to quickly verify proper lead placement during the surgical procedure without requiring extended post-implantation programming sessions.
3Manufacturing precision
If multiple preset programs are implemented to test each electrode with equal energy distribution, then manufacturing precision is improved, but device complexity increases
Solution Approach 1:
The patent designs a universal testing framework where a single preset program configuration can evaluate multiple electrodes through systematic activation patterns. The same basic program structure can be applied across different lead types and electrode arrangements, eliminating the need for completely separate testing protocols for each configuration. This multi-functional approach maintains uniform energy distribution while reducing the overall number of distinct programs required.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach reduces implantation time by enabling rapid assessment of lead positioning, minimizing surgical duration and costs, while ensuring effective neuromodulation delivery.
Implementation Method 1
A neural stimulator connected to leads with multiple electrodes uses preset programs to test each electrode with equal amounts of cathodic and anodic energy
Data Source
AI summary
A system may include a neural stimulator connected to at least one lead having a plurality of electrodes. The neural stimulator may be configured to store at least two preset programs, and to test each of the electrodes with equal amounts of cathodic energy by implementing at least two preset programs. Each of the preset programs may be configured to control delivery of neuromodulation to deliver neuromodulation energy using a different set of active electrodes from the plurality of electrodes. For each of the preset programs, the active electrodes may include at least two cathodic electrodes and at least two anodic electrodes, a total cathodic contribution for the neuromodulation energy may be evenly fractionalized across each of the at least two cathodic electrodes, and a total anodic contribution for the neuromodulation energy may be evenly fractionalized across each of the at least two anodic electrodes.