Motor-Driven Guidewire Manipulation With Manual Rotation Override
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Solution Overview
Problem
Current guidewire manipulation methods are inefficient and dependent on user skill, leading to increased procedure times and costs due to the difficulty in maneuvering thin, low-friction guidewires through tortuous vessels.
Innovation Solution
A guidewire manipulation device with a housing, drive system, and manual input module that allows for controlled rotation and longitudinal displacement of the guidewire, featuring a motor-driven rotation system and manual override capabilities, enabling single-handed operation with finger controls.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual helicoptering technique is used to torque the guidewire, then the guidewire can be maneuvered through tortuous vessels, but the procedure becomes time-consuming and inefficient
Solution Approach 1:
The patent replaces the manual mechanical helicoptering technique with an automated motor-driven rotation system. The drive system includes a motor coupled to a drive shaft that rotates the guidewire, eliminating the need for manual spinning and significantly reducing procedure time while maintaining effective torque application.
Solution Approach 2:
The device enables self-service operation where the guidewire manipulation device automatically performs the torque application function that previously required skilled manual operation. The motor-driven system provides consistent, repeatable rotation without depending on operator skill or fatigue.
2Ease of operation
If a torque device is used to facilitate guidewire rotation, then guidewire control is improved, but the device complexity increases
Solution Approach 1:
The device is segmented into distinct functional modules: a housing, a drive system with motor and drive shaft, a manual input module, and a guidewire engagement mechanism. This modular segmentation allows each component to perform its specific function efficiently while keeping the overall device manageable and maintainable.
Solution Approach 2:
The manual input module serves multiple functions: it can initiate rotation, adjust rotation speed, and stop rotation. This multi-functionality consolidates several control operations into a single integrated interface, reducing the number of separate controls needed and simplifying the overall device structure.
3Productivity
If current torque devices requiring concentration on spinning are used, then guidewire placement can be achieved, but operator skill dependence increases and consistency decreases
Solution Approach 1:
The patent replaces skill-dependent manual spinning with an automated motor-driven rotation system. The motor provides consistent, repeatable rotational motion that does not vary with operator skill level, ensuring reliable and consistent guidewire placement across different users and procedures.
Solution Approach 2:
The manual input module provides the operator with direct tactile feedback and control over the rotation process. The operator can feel the resistance and adjust the rotation accordingly, maintaining intuitive control while eliminating skill dependence for the actual spinning action.
Data Source
AI summary
A guidewire manipulation device includes a housing configured to be supported by the hand of a user, the housing having a distal end and a proximal end, the housing configured to allow a guidewire to be placed therethrough and extend between the distal end and proximal end, a drive system carried by the housing and configured to drive rotation of the guidewire, and a manual input module carried by the housing, the manual input module configured to allow one or more fingers of the hand of the user to manually stop or slow the rotation of the guidewire while the housing is supported by the hand of the user.