Motorized Guidewire Manipulation Device for Torque Control

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Solution Overview

Problem

Current guidewire manipulation techniques are inefficient due to the thin diameter and low friction surface of guidewires, making it difficult to apply torque, especially in tortuous and clogged vessels, and are operator-dependent, leading to increased procedure times and costs.

Innovation Solution

A motorized guidewire spinning mechanism with a tandem roller assembly and ergonomic design that provides consistent torque and traction, allowing for various rotational patterns and vibration assistance, enabling efficient guidewire placement independent of operator skill.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual torque application techniques (helicoptering) are used to manipulate the guidewire, then the guidewire can be maneuvered through tortuous vessels, but the procedure becomes time-consuming and operator-dependent

Engineering Contradiction:

Improveguidewire manipulationVSAvoidprocedure time

Core Design Contradiction:

Ease of operationVSLoss of time

Solution Approach 1:

The patent replaces manual mechanical torque application with an automated motorized system. A small rotary motor mounted on the guidewire provides automatic rotation and torque application, eliminating the need for manual helicoptering techniques and reducing operator skill dependency while decreasing procedure time.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The guidewire system performs its own manipulation through the integrated motor that rotates the guidewire automatically. The motorized guidewire self-regulates its rotation and torque application without requiring external manual intervention, making the system self-sufficient and reducing operator involvement.

Inventive Principle:

Principle #25Self-service

2Adaptability or versatility

If manual torque devices (plastic tube devices) are used to spin the guidewire, then rotational motion can be achieved, but the device complexity increases and operator skill dependency remains

Engineering Contradiction:

Improverotational controlVSAvoidtorque device structure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The motor is mounted directly on the guidewire shaft, nesting the motorized rotation mechanism within the existing guidewire structure. This integration approach provides rotational control functionality without adding external complex devices, maintaining simplicity while enhancing adaptability.

Inventive Principle:

Principle #7Nested doll (Nesting)

3Reliability

If traditional manual manipulation techniques are used, then the guidewire can be positioned, but operator skill and concentration are required leading to inefficiency

Engineering Contradiction:

Improveguidewire placement consistencyVSAvoidoperator skill dependency

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The patent replaces skill-dependent manual manipulation with an automated motorized system that provides consistent, reliable guidewire rotation and positioning. The motorized system eliminates variability introduced by operator skill levels and concentration, delivering uniform performance across different users and procedures.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The motorized guidewire manipulation device facilitates faster and more consistent guidewire placement through the use of powered rotation and vibration, reducing procedure times and costs by enhancing operator independence and traction, even in challenging vascular environments.

Implementation Method 1

a motorized guidewire spinning mechanism

Methodology Applied

Scientific EffectElectromagnetic conversion: Electromagnetic Induction

Implementation Method 2

use a motorized mechanism to helicopter the guidewire

Methodology Applied

Scientific EffectMechanical vibration: Vibration

Data Source

PatentUS11534582B2Guidewire manipulation device

Publication Date: 2022.12.27 VESATEK

AI summary

One preferred embodiment includes a guidewire manipulation device for manipulating a guidewire during a procedure. Preferably, the guidewire manipulation device includes a powered motor that drives a tandem roller assembly. The guidewire is passed through a hole positioned lengthwise through the device where the roller assembly engages the guidewire's outer surface. The interface of the manipulation device includes a power button that directs the internal roller assembly to roll the guidewire in a desired rotational direction. Additional interface controls are also preferable to provide a different roll patterns, depending upon surgeon preference and guidewire placement efficiency.