Catheter Guidewire Clamp for Stable Positioning
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Solution Overview
Problem
During percutaneous coronary interventions, the coordination between operators is critical to prevent unintended guidewire movement during insertion and removal of rapid exchange catheters, which can lead to complications such as vessel perforation or prolonged procedures.
Innovation Solution
A catheter delivery guidewire clamp that secures the guidewire during insertion and removal, maintaining fluidic pressure and simplifying the process by coupling between existing catheter delivery devices or being manufactured as part of them, thereby reducing the risk of guidewire movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual coordination between operators is used to hold the guidewire during catheter insertion and removal, then the procedure can be performed with existing simple devices, but the risk of unintended guidewire movement increases and procedure complexity increases
Solution Approach 1:
The patent introduces a mechanical intermediary device (the clamp with guidewire securing section) that acts as a mediator between the operators and the guidewire. This clamp automatically secures the guidewire during catheter manipulation, eliminating the need for manual coordination while maintaining guidewire position stability. The clamp serves as a passive mechanical assistant that reliably holds the guidewire without requiring operator attention or coordination.
2Ease of manufacture
If manual guidewire holding is performed during rapid exchange catheter manipulation, then existing catheter delivery devices can be used, but the risk of guidewire buckling and unintended movement increases
Solution Approach 1:
The clamp is pre-positioned in the catheter delivery system before the procedure begins. The guidewire securing section is designed to automatically engage and secure the guidewire in advance, before any catheter manipulation occurs. This preliminary securing action prevents guidewire buckling and unintended movement during subsequent catheter insertion and removal operations.
3Device complexity
If assistants manually hold the guidewire during catheter insertion, then no additional mechanical devices are needed, but the time required for coordination and communication increases
Solution Approach 1:
The clamp system is designed to be self-servicing during the procedure. The guidewire securing section automatically maintains grip on the guidewire without requiring manual intervention or coordination between operators. The mechanical design inherently provides the securing function, making the system self-sufficient and eliminating the need for assistant operators to manually hold the guidewire.
4Productivity
If the guidewire is left unsecured during rapid exchange catheter removal, then the procedure can proceed quickly, but the risk of guidewire movement and vessel damage increases
Solution Approach 1:
The clamp incorporates a dynamic release mechanism that allows the guidewire securing section to be quickly released when needed. During catheter removal, the operator can rapidly release the clamp to allow smooth guidewire movement, maintaining procedure speed. The dynamic nature of the clamp allows it to transition from a secure holding state to a released state quickly, enabling fast catheter exchange while maintaining safety when secured.
Data Source
AI summary
A catheter delivery device includes a hollow longitudinal body, a fluidic bypass, and a hemostasis valve. The hollow longitudinal body includes a clamping portion and a guide catheter. The guide catheter has a distal end for access into a vessel of a patient and a proximal end coupled to the clamping portion. The clamping portion has a distal end coupled to the guide catheter, a proximal end coupled to the hemostasis valve, and a guidewire securing section. When the guidewire securing section of the clamping portion is securing the guidewire, the fluidic bypass maintains fluid communication between the guide catheter and the hemostasis valve. In some cases, the guidewire securing section and the fluidic bypass are separated by material within the hollow longitudinal body. In some cases, the fluidic bypass is separate from the guidewire securing section outside of the hollow longitudinal body.