Guidewire Threading Assembly for Automated Angiography Valves
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Solution Overview
Problem
Angiographic procedures face inefficiencies due to manual guidewire monitoring, increased safety hazards from guidewire exposure, and thrombus formation, necessitating a solution for automated guidewire threading and enhanced safety measures.
Innovation Solution
A device comprising a controller, catheter and guidewire driving mechanisms, and a guidewire threading auxiliary assembly, along with a fully-automatic angiographic robot, which includes a coiled storage tube and heparinized-saline-solution injection, to automate guidewire threading and prevent exposure and clotting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual guidewire monitoring is used during angiographic procedures, then operators can directly control the procedure, but procedural efficiency is reduced and operators cannot fully focus on the procedure itself
Solution Approach 1:
The system enables self-service operation through automatic guidewire threading and reinsertion functions. The robotic system autonomously performs guidewire manipulation tasks including threading into the valve body and reinsertion after contrast agent injection, eliminating the need for continuous manual monitoring and significantly improving procedural efficiency
Solution Approach 2:
Manual mechanical guidewire manipulation is replaced by an automated robotic system with specialized mechanisms including a guidewire threading auxiliary assembly with threading needle, guidewire clamping mechanism, and automated delivery system that precisely controls guidewire insertion and reinsertion operations
2Reliability
If guidewire is kept exposed outside during angiographic procedure, then guidewire can be easily accessed and manipulated, but safety hazards increase due to risks of guidewire falling or coming into contact with contaminated areas
Solution Approach 1:
The guidewire is nested within a protective sheath or delivery catheter system that keeps it enclosed during the procedure. The automated robotic system manipulates the guidewire through sealed channels and connections, preventing exposure to contaminated areas while maintaining controlled accessibility through the protective envelope
Solution Approach 2:
A protective intermediary structure (sheath or enclosed delivery system) is introduced between the guidewire and the external environment. This intermediary maintains guidewire safety by preventing contact with contaminated areas while still allowing controlled manipulation through its structured interface
3Productivity
If guidewire is withdrawn from valve body after contrast agent injection, then next angiography can be performed, but significant time is lost due to requiring reinsertion of guidewire
Solution Approach 1:
The robotic system performs preliminary positioning and preparation of the guidewire and delivery system before contrast agent injection. The guidewire is pre-positioned within the catheter assembly, and the automated system is ready to rapidly reinsert it after injection, minimizing the time loss that would otherwise occur during manual reinsertion
Solution Approach 2:
The automated robotic system maintains continuous readiness to perform guidewire manipulation throughout the procedure. The guidewire remains in a prepared state within the delivery system, and the robotic mechanisms are continuously positioned to enable immediate reinsertion after contrast agent injection, eliminating idle time and maintaining continuous productive action
Data Source
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AI summary
A device for automatically threading a guide wire into a valve and a fully-automatic radiography robot. Said device comprises a controller, and a catheter driving mechanism (1), a guide wire driving mechanism (2) and a threading assistant assembly (3) which are in communication connection to the controller. The catheter driving mechanism (1) is provided with a radiography valve body (11), the radiography valve body (11) being connected to a catheter (12) on the catheter driving mechanism (1). The guide wire driving mechanism (2) comprises a guide wire moving mechanism (21) and a guide wire delivery mechanism (211) mounted on the guide wire moving mechanism (21). The threading assistant assembly (3) is mounted on the side of the guide wire driving mechanism (2) close to the catheter driving mechanism (1). In a working state, a guide wire is clamped by the guide wire driving mechanism (2) and partially enters the threading assistant assembly (3); then the controller acquires a wire threading instruction, and, on this basis, controls the guide wire moving mechanism (21) to move towards the catheter driving mechanism (1) until part of the threading assistant assembly (3) enters the radiography valve body (11); and then controls the guide wire delivery mechanism (211) to deliver the guide wire into the catheter (12). The present application does not need doctors to perform manual operation on guide wires.