Unified Catheter Insertion Tool with Integrated Guidewire Control
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Solution Overview
Problem
Current catheter placement devices require multiple steps and tools for needle insertion, guidewire advancement, and catheter insertion, which can be cumbersome and increase the risk of procedural errors.
Innovation Solution
A unified insertion tool that integrates needle insertion, guidewire advancement, and catheter insertion into a single device, featuring a housing with a hollow needle, a pre-disposed guidewire, and advancement assemblies for both the guidewire and catheter, allowing for simultaneous and controlled advancement without hand relocation during the procedure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple separate tools are used for needle insertion, guidewire advancement, and catheter insertion, then each function can be performed with a dedicated device, but the procedural complexity increases and user control is reduced
Solution Approach 1:
The patent combines needle insertion, guidewire advancement, and catheter insertion functions into a single integrated insertion tool. The device includes a hollow needle with a guidewire pre-disposed within it, and a catheter pre-disposed over the needle, all controlled from a single handle assembly. This merging eliminates the need to switch between multiple separate tools during the procedure, reducing procedural complexity while maintaining safety through integrated control mechanisms.
Solution Approach 2:
The insertion tool is designed as a multi-functional device that performs needle insertion, guidewire advancement, and catheter insertion through a single unified system. The handle assembly includes separate advancement assemblies for each component (needle, guidewire, catheter), allowing all functions to be controlled from one device without requiring multiple specialized tools.
2Ease of operation
If separate advancement steps are required for each component, then precise control of each element is achieved, but the procedure becomes more time-consuming and complex
Solution Approach 1:
The advancement assemblies are designed to be selectively actuated in any sequence desired by the operator. The handle includes independent advancement mechanisms for the needle, guidewire, and catheter that can be activated dynamically during the procedure. This dynamic control allows the operator to advance components in the most efficient sequence for each specific case, reducing procedural time while maintaining precise control over each element's positioning.
3Productivity
If hand relocation is required between different tools, then each tool can be optimized for its specific function, but procedural efficiency is reduced
Solution Approach 1:
By consolidating all advancement functions into a single handle assembly, the patent eliminates the need for the operator to relocate their hand between multiple separate tools. The handle includes all necessary control mechanisms for advancing the needle, guidewire, and catheter within easy reach of the operator's fingers, maintaining procedural efficiency through continuous hand positioning on one device.
Data Source
Figure 1A~1B
Figure 2A
Figure 2B
AI summary
An insertion tool for inserting a catheter into a body of a patient, comprising a housing in which at least a portion of the catheter is initially disposed; a needle distally extending from the housing, at least a portion of the catheter pre-disposed over the needle; a guidewire; a guidewire advancement assembly for selectively distally advancing the distal end of the guidewire out a distal opening of the needle in preparation for distal advancement of the catheter; and a catheter advancement assembly for selectively advancing the catheter in a distal direction, the catheter advancement assembly including a handle assembly, at least one of the guidewire advancement assembly and the handle assembly configured to prevent advancement of the catheter until distal advancement of the guidewire is performed.