Pacemaker Electrode Lead Carbon Nanotube Coating
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Solution Overview
Problem
Pacemaker electrode leads made of metal wires have poor strength and ductility, leading to reduced lifetime due to repeated distortions.
Innovation Solution
A method involving a conductive wire structure coated with a carbon nanotube composite structure, formed by combining carbon nanotubes with a conductive material and treating with a volatile organic solvent, to enhance mechanical properties and conductivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If metal wires are used for the lead wire, then electrical conductivity is achieved, but strength and ductility are poor leading to easy breakage
Solution Approach 1:
The patent applies composite materials by combining carbon nanotubes with metal wires to create a hybrid structure. The carbon nanotube composite structure is formed by combining carbon nanotubes with a conductive material, then covering it on the conductive wire structure. This composite approach leverages the exceptional strength and ductility of carbon nanotubes while maintaining electrical conductivity, thereby resolving the contradiction between strength and reliability.
2Duration of action of stationary object
If metal wires are used for the lead wire, then electrical conductivity is achieved, but the lead wire is easily broken due to repeat distortions
Solution Approach 1:
The patent uses composite materials consisting of carbon nanotubes combined with conductive material to form a carbon nanotube composite structure. This composite structure is then covered on the conductive wire structure. The carbon nanotubes provide exceptional mechanical properties including resistance to repeated distortions, while maintaining electrical conductivity, thereby extending the lifetime and reliability of the pacemaker electrode lead.
3Strength
If carbon nanotube composite structure is coated on conductive wire structure, then strength and ductility are improved, but manufacturing complexity increases
Solution Approach 1:
The patent employs flexible thin films by using a carbon nanotube composite structure that is formed as a coating layer on the conductive wire structure. The carbon nanotubes are combined with conductive material to create a flexible composite film that can be applied to the wire surface. This approach improves strength and ductility while keeping the manufacturing process relatively simple through coating techniques.
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
The carbon nanotube composite structure improves the strength and ductility of the pacemaker electrode lead, preventing breakage under stress and extending its lifespan by providing a large friction force and maintaining conductivity for impulse signal transfer.
Implementation Method 1
The carbon nanotube composite structure is covered on a surface of the conductive wire structure to form a conductive wire composite structure... providing a large friction force
Data Source
AI summary
The present disclosure relates to a method for making a pacemaker electrode lead. In the method, the conductive wire structure and the carbon nanotube structure are provided. A conductive material is combined with the carbon nanotube structure to form a carbon nanotube composite structure. The carbon nanotube composite structure is covered on surface of the conductive wire structure to form a conductive wire composite structure.