Inspectable Medical Joint Integrity Detection
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Solution Overview
Problem
Current methods for inspecting the integrity of bonded joints in medical IV sets are slow and costly, requiring significant capital equipment and prone to errors, which can lead to leakage and safety hazards.
Innovation Solution
The development of inspectable joints that incorporate a medical-grade tube, fitting, and joining material with a detectable component, allowing for visual or automated inspection to verify the presence and quality of the bond between the tube and fitting, using a bonding agent with an adhesion component and a detectable component such as a colorant or magnetic material.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pressure-decay inspection method is used, then joint integrity can be detected, but inspection speed is slow and equipment cost is high
Solution Approach 1:
The patent applies color-changing indicators or dye-filled tubes within the joint structure that visually indicate integrity status. When a joint is properly formed, the indicator displays one color; when defective, it changes to another color, enabling rapid visual inspection without pressure-decay equipment.
Solution Approach 2:
The patent replaces the mechanical pressure-decay inspection system with a visual indicator system embedded in the joint structure. This substitution eliminates the need for capital equipment while maintaining detection capability through optical rather than mechanical means.
2Reliability
If pressure-decay inspection method is used, then joint integrity can be detected, but equipment cost and capital investment are significant
Solution Approach 1:
The patent incorporates inexpensive visual indicators directly into the disposable joint structure itself. The indicator is a low-cost component that provides detection functionality without requiring expensive external inspection equipment, making the detection capability inherent to the single-use joint.
Solution Approach 2:
The joint structure itself provides the inspection capability through embedded visual indicators. The joint is self-inspecting, eliminating the need for separate inspection equipment and reducing overall system complexity and cost.
3Ease of manufacture
If traditional bonding method is used, then tube to fitting connection is achieved, but joint integrity cannot be easily verified
Solution Approach 1:
The patent incorporates visual indicators that change color or display different colors based on joint integrity. Properly bonded joints show one color indication, while defective joints show another, making verification simple and immediate without additional measurement tools.
Solution Approach 2:
The visual indicator is pre-installed within the joint structure before bonding occurs. The indicator is positioned and prepared in advance to automatically provide verification information once the bonding process is complete, eliminating the need for post-bonding inspection procedures.
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 solution provides a fast, reliable, and cost-effective method for inspecting joint integrity, improving accuracy and reducing the risk of leakage by enabling quick visual or automated verification of bond quality, replacing traditional pressure-decay methods.
Implementation Method 1
The joining material has a first component configured to couple the tube to the fitting and a second component configured to provide observable evidence of the presence of the joining material between the tube and the joining surface
Data Source
AI summary
An inspectable joint in a medical device is disclosed that includes at least one medical-grade tube having an end, a medical-grade fitting having at least one joining surface configured to accept the end of the tube, and a joining material disposed between the tube and the joining surface. The joining material includes a first component configured to couple the tube to the fitting and a second component configured to provide observable evidence of the presence of the joining material between the tube and the joining surface.