Robotic Catheter Drive Mechanism for Precise Guide Wire Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing minimally invasive vascular intervention systems lack efficient mechanisms for precise control and manipulation of catheters and guide wires, leading to increased radiation exposure and potential operational errors during interventional procedures.
Innovation Solution
A slave-end apparatus for an interventional robot equipped with multiple drive mechanisms and a clamper, allowing for synchronized axial movement and rotation of multiple catheters and guide wires, enabling remote manipulation to enhance precision and reduce radiation exposure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If multiple catheters and guide wires are manually manipulated during interventional procedures, then the physician can perform complex vascular interventions, but the operator is exposed to radiation and experiences increased fatigue and potential errors
Solution Approach 1:
The patent introduces a robotic slave-end apparatus as an intermediary device between the operator and the catheters/guide wires. The apparatus includes multiple drive mechanisms (first drive mechanism for catheter, third drive mechanism for guide wire) that physically manipulate the medical instruments, replacing direct manual manipulation. This intermediary robotic system eliminates radiation exposure to the operator while maintaining full control capability for complex vascular interventions.
Solution Approach 2:
The patent replaces the manual mechanical manipulation system with an automated robotic mechanical system. The slave-end apparatus uses drive mechanisms with clamps and rotators that can automatically advance, rotate, and position catheters and guide wires according to control signals. This substitution eliminates the need for the operator to physically handle the instruments under radiation, while the synchronized axial movement capability ensures precise coordination of multiple instruments.
2Measurement precision
If manual manipulation of catheters and guide wires is used, then the procedure can be performed with simpler equipment, but precision and control accuracy are reduced
Solution Approach 1:
The patent divides the control system into multiple independent drive mechanisms, each responsible for specific functions. The first drive mechanism controls the catheter with clamping and rotation capabilities, the third drive mechanism controls the guide wire separately, and additional mechanisms (second, fourth, fifth, sixth) provide specialized functions. This segmentation allows each mechanism to be optimized for its specific task, achieving high precision control while enabling modular design that manages overall system complexity.
Solution Approach 2:
The patent implements dynamic, movable drive mechanisms that can independently adjust their positions and functions during the procedure. The drive mechanisms are designed with movable components that can be positioned along the apparatus body to accommodate different catheter and guide wire configurations. This dynamic capability allows the system to adapt to various procedural requirements while maintaining precise control through automated actuation.
3Reliability
If synchronized axial movement of multiple instruments is implemented, then coordination and precision are improved, but the device structure becomes more complex
Solution Approach 1:
The patent designs the drive mechanisms with multi-functionality to reduce overall structural complexity. Each drive mechanism is equipped with both clamping functionality and rotation capability, allowing a single mechanism to perform multiple operations on its assigned instrument. The mechanisms can also be positioned at different locations along the apparatus body, providing universal applicability for different instrument configurations and procedural needs, thereby achieving high coordination accuracy without proportionally increasing complexity.
Data Source
AI summary
A slave-end apparatus for an interventional robot includes: a body, and a first drive mechanism, a second drive mechanism and a third drive mechanism that are successively mounted on the body; wherein in a case that the guide wire runs into the second catheter, the second catheter runs into the first catheter, and the first catheter, the second catheter and the guide wire are respectively clamped by the first drive mechanism, the second drive mechanism and the third drive mechanism, the first drive mechanism, the second drive mechanism and the third drive mechanism move along the same axial direction on the body to respectively drive the first catheter, the second catheter and the guide wire to move.