Ultrasound Bronchoscope Non-Coaxial Cable Connection
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Solution Overview
Problem
The use of non-coaxial cables in ultrasound bronchoscopes poses challenges due to their susceptibility to disconnection and limited flexibility in wiring connections, primarily because they lack a shield layer and outer coat, leading to mechanical stress and reduced freedom in wiring arrangements.
Innovation Solution
The design incorporates a non-coaxial cable with a first shield layer and an outer coat, along with a flexible substrate that is strategically positioned and bonded to electrode pads, allowing for improved electrical connections and flexibility, and includes reinforcing materials to prevent disconnection and enhance wiring freedom.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a non-coaxial cable without shield layer and outer coat is used, then the cable diameter is reduced, but the cable is likely to be cut at connection time and wiring freedom is reduced
Solution Approach 1:
The patent applies local quality by providing shield layers and outer coats only at specific locations where cables connect to the flexible substrate, rather than covering the entire cable length. This localized protection prevents cutting at connection points while maintaining reduced overall cable diameter and flexibility.
Solution Approach 2:
The patent incorporates reinforcing structures and protective coatings at cable connection regions before the actual connection process. This preliminary reinforcement ensures that the cables can withstand connection forces without being cut, addressing the reliability issue before it occurs.
2Volume of moving object
If a non-coaxial cable without shield layer and outer coat is used, then the cable diameter is reduced, but wiring freedom is reduced
Solution Approach 1:
By applying protective structures only at connection points rather than along the entire cable, the patent maintains cable flexibility and wiring freedom in the main cable body while providing necessary protection at critical connection regions.
Solution Approach 2:
The patent segments the cable structure into protected connection regions and unprotected flexible regions. This segmentation allows different parts of the cable to have different properties - rigid and protected at connections, flexible and unprotected in the body - thereby maintaining wiring freedom.
3Reliability
If coaxial cable with shield layer and outer coat is used, then cable protection is improved, but the ultrasound bronchoscope diameter cannot be reduced
Solution Approach 1:
The patent applies shield layers and outer coats only at specific connection regions rather than covering the entire cable length. This localized approach provides necessary protection at connection points while keeping the overall cable and bronchoscope diameter reduced.
Solution Approach 2:
The patent extracts the protective shield layer and outer coat structures from the entire cable length and retains them only at critical connection regions. This extraction allows the majority of the cable to have reduced diameter while maintaining protection where most needed.
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 effectively prevents disconnection of the non-coaxial cables and enhances the degree of freedom in wiring connections, ensuring reliable operation and flexibility of the ultrasound bronchoscope.
Implementation Method 1
a distal end part that has an ultrasound transducer array in which a plurality of ultrasound transducers are arranged
Data Source
AI summary
Provided is an ultrasound bronchoscope capable of preventing a non-coaxial cable from being disconnected and improving a degree of freedom of wirings.An ultrasound bronchoscope includes a distal end part having an ultrasound transducer array, a bending part that is coupled to a proximal end of the distal end part and is bendable in two directions, a flexible part that is coupled to a proximal end of the bending part, a cable that is inserted into the flexible part and the bending part, and a flexible substrate that electrically connects a plurality of ultrasound transducers and the cable, and is disposed over the distal end part, the bending part, and a part of the flexible part. The cable includes a plurality of non-coaxial cables, each non-coaxial cable includes a plurality of signal wires, the distal end part has a structure for regulating a rotation direction of the flexible substrate, such that the flexible substrate is bendable in the same two directions as the bending part, and a plurality of first electrical bonded portions where a plurality of signal wires and a plurality of electrode pads of the flexible substrate are electrically bonded are positioned in a region of the flexible part.