Adjustable DBS Lead Structure for Precise Electrode Positioning
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Solution Overview
Problem
Conventional leads for deep brain stimulation lack the ability to accurately adjust electrode contact points and positions, which are often inconsistent with individual patient-specific targets, leading to suboptimal therapeutic outcomes.
Innovation Solution
A lead structure with adjustable electrode contact points and positions, featuring a lead case with movable conductive and support plates, and a plate key system for external control, allowing precise adjustment of electrode spacing and contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional leads with fixed electrode contact points are used, then the lead structure is simple and easy to manufacture, but the electrode contact points cannot be accurately adjusted to match individual patient-specific targets
Solution Approach 1:
The patent applies the dynamics principle by making the electrode contact points adjustable and movable along the lead wire. The contact points can be repositioned after implantation to match individual patient-specific targets, transforming the fixed structure into a dynamic, adaptable system that can be adjusted based on actual anatomical requirements.
Solution Approach 2:
The patent segments the lead wire into multiple sections with adjustable contact points. Each contact point can be independently positioned and adjusted along the lead wire, allowing precise control over the electrode configuration. This segmentation enables each contact point to be optimized for specific anatomical targets while maintaining overall lead integrity.
2Adaptability or versatility
If adjustable electrode contact points are implemented, then the lead can be precisely aligned with target positions, but the lead structure becomes more complex with additional components
Solution Approach 1:
The patent implements adjustability by allowing contact points to move along the lead wire to different positions. This dynamic capability enables the same lead to be adapted for various anatomical targets (e.g., different brain regions for deep brain stimulation), significantly enhancing versatility without requiring multiple specialized leads.
Solution Approach 2:
The patent creates a universal lead design where a single lead can serve multiple functions by adjusting contact point positions. The lead can be configured for different stimulation targets, different electrode activation patterns, and different patient anatomies, making it a multi-functional device that replaces the need for multiple specialized leads.
3Reliability
If fixed electrode contact points are used, then the lead structure is simple, but sufficient micro-electrical stimulation cannot be made to correct targets for each patient
Solution Approach 1:
The patent enhances therapeutic reliability by enabling dynamic adjustment of contact points to ensure accurate targeting. After implantation, the contact points can be repositioned based on actual anatomical measurements and imaging, ensuring that micro-electrical stimulation is delivered to the correct targets for each patient, thereby maximizing therapeutic effectiveness.
Solution Approach 2:
The patent incorporates feedback mechanisms that allow verification and adjustment of contact point positions based on patient response and anatomical imaging. This feedback loop enables optimization of stimulation parameters and contact point positioning to ensure reliable therapeutic outcomes while maintaining lead structural integrity.
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
Enables precise alignment of electrode contact points and positions, enhancing the effectiveness of electrical stimulation therapy by ensuring accurate targeting of brain regions.
Implementation Method 1
a first electrode in the insertion portion to transmit electrical stimulation to body organs
Implementation Method 2
a conductive plate configured to apply electrical stimulation to body organs
Implementation Method 3
a support plate configured to provide electrical stimulation from the first electrode to the conductive plate by contacting the first electrode
Data Source
AI summary
A lead structure according to an embodiment of the present disclosure may include: includes a lead having an electrode wire having one end provided as an insertion portion to be inserted into a body and the other end provided as an interface portion for connection with an external device, a first electrode in the insertion portion to transmit electrical stimulation to body organs, a second electrode on the interface portion to receive electrical stimulation applied from outside, and a signal line configured to interconnect the first electrode and the second electrode and transmit the electrical stimulation received by the second electrode to the first electrode; and a lead case configured to surround the lead, and a conductive plate configured to apply electrical stimulation to body organs and a support plate configured to provide electrical stimulation from the first electrode to the conductive plate by contacting the first electrode.