Flexible Catheter Detection Circuit for Reliable Micro-Welding
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Solution Overview
Problem
In-vivo detection apparatuses based on flexible tubes face challenges in welding detection components due to their small size, leading to inconvenient operations and instability during motion, with a high risk of cable disconnection.
Innovation Solution
The apparatus includes a detection component connected to a main circuit board with conducting materials on both sides, where the wiring terminal is welded to a first conducting material on one side, and a second conducting material on the other side is perpendicularly connected to the main circuit board, enhancing welding strength and stability by changing the connection from a point to a line, and utilizing auxiliary circuit boards to form a cavity structure and ensure stable mounting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the detection component is made small to reduce packaging size, then the packaging size is reduced, but the welding operation becomes inconvenient and welding reliability decreases
Solution Approach 1:
The patent introduces a circuit board as an intermediary component between the detection component and the cable. The wiring terminal of the detection component is welded to the circuit board, which then connects to the cable through conducting materials. This intermediary structure allows the detection component to remain small while providing a stable platform for welding operations, resolving the contradiction between small size and welding convenience.
2Volume of moving object
If the detection component is made small to reduce packaging size, then the packaging size is reduced, but the welding reliability during motion decreases and cable disconnection risk increases
Solution Approach 1:
The patent transitions the welding connection from a direct point-to-point connection to a distributed multi-point connection through the circuit board. The first conducting material connects to one side of the detection component while the second conducting material connects to another side, creating a multi-dimensional connection structure that enhances welding reliability during motion while maintaining compact packaging.
3Reliability
If conducting materials are added to both sides of the detection circuit board, then the welding reliability is enhanced, but the device complexity increases
Solution Approach 1:
The circuit board serves multiple functions: it provides a mounting platform for the detection component, acts as a connection intermediary between the detection component and cable, and incorporates conducting materials on both sides for reliable electrical connections. By making the circuit board multi-functional, the patent enhances welding reliability without proportionally increasing device complexity.
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 configuration reduces the difficulty of welding operations, enhances welding reliability and stability, and ensures stable mounting and electrical transmission, even in various motion statuses, while also simplifying the size and manufacturing of the apparatus.
Implementation Method 1
a first conducting material is disposed on a first side surface of the detection circuit board, the detection component is connected to the first side surface of the detection circuit board, a wiring terminal of the detection component is welded to the first conducting material
Implementation Method 2
a wiring terminal of the detection component is welded to the first conducting material, the second conducting material is perpendicularly welded to a conductive portion on a surface of the main circuit board
Data Source
AI summary
The present invention provides an in-vivo detection apparatus and system based on a flexible tube. The apparatus includes: a detection component, a main circuit board, a detection circuit board, an auxiliary circuit board, a cable, and an outer tube. The in-vivo detection apparatus has improved welding strength and reliability particularly when a packaging size is limited.