Ceramic Neural Access Tube Assembly for Low-Invasive Monitoring
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Solution Overview
Problem
Existing methods for measuring neural activity in living organisms, such as rodents and primates, involve invasive procedures due to repeated insertion and removal of devices, causing damage and potential allergic reactions, especially when using metal components.
Innovation Solution
A tube assembly made of ceramic materials, including a tube, first and second ferrules, and a sleeve, which are fixed to the organism with a less invasive design, allowing continuous measurement without repeated insertion, and featuring a lens for improved data collection accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If metal components are used in the tube assembly, then structural strength is improved, but allergic reactions and invasiveness worsen
Solution Approach 1:
The tube assembly uses ceramic materials (such as alumina or zirconia) instead of metal components, creating a biocompatible composite structure that maintains structural strength while eliminating allergic reactions. The ceramic tube (10) and ferrules (20, 30) form a complete non-metallic composite assembly that replaces all metal parts.
2Productivity
If devices are repeatedly inserted and removed for neural activity measurement, then measurement capability is improved, but tissue damage and invasiveness worsen
Solution Approach 1:
The tube assembly is permanently implanted in the brain before neural activity measurements begin, establishing a stable measurement platform that eliminates the need for repeated insertions. The pre-positioned tube (10) with lens (14) and ferrules (20, 30) allows continuous, non-invasive optical access for multiple measurement sessions without further tissue penetration.
3Object-affected harmful factors
If ceramic materials are used in the tube assembly, then biocompatibility and reduction of allergic reactions is improved, but manufacturing complexity worsens
Solution Approach 1:
The ceramic tube assembly is divided into separate manufacturable components including tube (10), first ferrule (20), second ferrule (30), and sleeve (40), each of which can be independently formed using standard ceramic processing techniques. This segmentation allows each component to be optimized for its specific function while simplifying the overall manufacturing process.
4Measurement precision
If a lens is added to the tube assembly for improved data collection, then measurement precision is improved, but device complexity worsens
Solution Approach 1:
The lens (14) is integrated directly into the tube structure at the distal end, merging the optical focusing function with the structural tube component. This integration eliminates the need for separate optical housings or mounting mechanisms, reducing overall device complexity while maintaining measurement precision.
Data Source
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AI summary
A tube assembly for a living organism includes a tube and a first ferrule. The tube is partially placeable into a living organism. The tube includes a first end, a second end, a through-hole, and a lens. The through-hole extends in a first direction from the second end to the first end. The first ferrule covers an outer periphery of the tube in the first direction. The lens is located in a portion of the through-hole including at least the first end. The tube and the first ferrule contain a ceramic material.