Integrated Catheter with IVUS and Guide Wire
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Solution Overview
Problem
Current catheter systems for intravascular procedures, such as CTO canalization, require sophisticated device manipulation and three-dimensional reconstruction of vascular information, making them operator-dependent and prone to complications like false lumen formation and vascular perforation.
Innovation Solution
A catheter design that integrates a sensor, such as IVUS, and a medical device, like a guide wire, within a single shaft with multiple lumens, allowing for real-time imaging and improved operability by reducing the need for separate device manipulation and three-dimensional reconstruction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Difficulty of detecting and measuring
If IVUS is separately provided from treatment devices, then imaging function is achieved, but device complexity and operator skill dependency increase
Solution Approach 1:
The patent combines the IVUS imaging catheter and the guide wire into a single integrated catheter system. The guide wire is inserted through a lumen of the catheter shaft, allowing both imaging and treatment functions to be performed through one device rather than requiring separate manipulation of multiple devices. This merging resolves the technical contradiction by achieving vascular imaging capability while reducing device complexity and operator skill dependency.
2Ease of operation
If guide wire is manipulated separately from IVUS catheter, then treatment function is achieved, but operability and precision are reduced
Solution Approach 1:
By integrating the guide wire within the IVUS catheter shaft, the system provides unified control and positioning. The operator manipulates a single device that simultaneously provides imaging guidance and treatment delivery, improving ease of operation. The integrated design ensures that position information from the IVUS imaging is directly correlated with the treatment device position, enhancing measurement precision and eliminating the need for separate device coordination.
3Loss of information
If conventional IVUS guide technique is used, then real-time imaging is achieved, but three-dimensional reconstruction and high operator skill are required
Solution Approach 1:
The integrated catheter system delivers real-time IVUS imaging information directly from the treatment site without requiring separate three-dimensional reconstruction. The imaging sensor is positioned within the catheter shaft that also delivers the treatment device, ensuring that the imaging plane is co-located with the treatment action. This eliminates the need for complex three-dimensional adaptation and reduces operator skill requirements while maintaining real-time information delivery.
Data Source
AI summary
A catheter comprises a shaft, an extended shaft portion, and an electrode disposed on an outer circumferential surface of the shaft. The shaft has a first lumen and a second lumen that is arranged adjacent to the first lumen. The extended shaft portion is provided on a distal end portion of the shaft, has the first lumen, and has a distal end portion located on a distal end side of a distal end portion of the second lumen, in the shaft.