Vascular Intervention Motion System with Force Reproduction

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Solution Overview

Problem

Current vascular intervention navigation surgery systems lack the necessary degrees of freedom and resistance detection capabilities, making it difficult to perform complex vascular interventions safely and efficiently.

Innovation Solution

The proposed motion system incorporates a support base, Y-connector rotation control structure, guidewire limiting structure, and a force reproduction system to enhance the vascular intervention navigation surgery system's functionality, allowing for more precise control and resistance detection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a vascular intervention navigation surgery system is used to control guidewire movement, then surgical precision is improved and doctor safety is enhanced, but the system lacks resistance detection capability making it difficult to detect guidewire resistance in blood vessels

Engineering Contradiction:

Improvesurgical safetyVSAvoidguidewire resistance detection

Core Design Contradiction:

ReliabilityVSDifficulty of detecting and measuring

Solution Approach 1:

The patent introduces a force sensor as an intermediary device that indirectly measures guidewire resistance. The force sensor detects the interaction force between the guidewire and blood vessel wall, converting this mechanical interaction into measurable signals that indicate whether the guidewire has successfully navigated the blood vessel or caused damage.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces the purely mechanical guidewire advancement system with an integrated sensor-based detection system. The force sensor substitutes for direct mechanical feeling by the operator, providing electronic measurement and feedback of resistance forces that would otherwise be imperceptible during remote or automated operation.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Ease of operation

If the vascular intervention navigation surgery system provides basic forward and backward movement control, then operational simplicity is maintained, but the system lacks sufficient degrees of freedom for complex vascular interventions

Engineering Contradiction:

Improveoperation simplicityVSAvoidmotion degrees of freedom

Core Design Contradiction:

Ease of operationVSAdaptability or versatility

Solution Approach 1:

The patent enhances the motion system to perform multiple functions: basic forward/backward movement, rotational control of the guidewire, and force sensing. This multi-functional capability allows the same system to handle both simple and complex vascular interventions without requiring separate specialized devices.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent introduces dynamic control capabilities including rotational movement and force-feedback mechanisms. The system transitions from static position control to dynamic multi-axis control, enabling adaptability to various vascular geometries and intervention requirements while maintaining ease of operation through automated or assisted control.

Inventive Principle:

Principle #15Dynamics

3Ease of operation

If mechanical operation is used to move the guidewire, then operational control is direct, but the doctor cannot sense the resistance of the guidewire during movement in the blood vessel

Engineering Contradiction:

Improvedirect controlVSAvoidresistance sensation

Core Design Contradiction:

Ease of operationVSLoss of information

Solution Approach 1:

The patent implements a feedback mechanism where the force sensor continuously monitors guidewire resistance and provides this information back to the control system. This feedback loop restores the loss of tactile information by electronically sensing and reporting resistance forces, allowing the operator to make informed decisions about guidewire advancement.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The patent substitutes direct mechanical tactile feedback with electronic force sensing. The force sensor captures mechanical resistance forces and converts them into electrical signals that can be processed, displayed, and used for automated control, replacing the doctor's natural tactile sensation with an electronic measurement system.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS20250064614A1Motion system for vascular intervention navigation surgery system

Publication Date: 2025.02.27 J ROBOTICS MEDICAL LTD

AI summary

A motion system for a vascular intervention navigation surgery system is configured to control the motion of the vascular intervention navigation surgery system. The motion system has a support base and the vascular intervention navigation surgery system. The motion system provides more degrees of freedom of motion and other functions for the vascular intervention navigation surgery system, guidewires, catheters, stents, etc., making it more convenient to perform vascular intervention surgery. The motion system further includes a force reproduction system for the vascular intervention navigation surgery system. The force reproduction system can effectively detect a resistance of the guidewire in blood vessels, and by processing the resistance, determine the further movement status of the guidewire, thereby improving the safety and operational efficiency of vascular intervention surgery.