Motion Generating Device for Guidewire Advancement
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Solution Overview
Problem
Current methods for advancing guidewires and catheters through tortuous vascular anatomy are hindered by frictional forces, requiring subjective and energy-intensive shaking techniques that can be challenging for less experienced operators and may lead to unintended consequences like vasculature perforation.
Innovation Solution
A motion generating device with a housing and motion source, such as a voice coil actuator or small electric motor, that produces vibrations and rotational movements to reduce friction, allowing for systematic advancement of interventional devices like guidewires and catheters, with adjustable settings for amplitude, frequency, and rotational speed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If clinicians shake the wire to generate longitudinal waves or vibrations to overcome frictional contact forces, then the wire can be repositioned and re-advanced, but the shaking process is subjective and requires significant energy which can be draining after long procedures
Solution Approach 1:
The patent replaces the manual mechanical shaking action with an automated electromechanical device. The motion generation device uses a motor or voice coil actuator to generate controlled vibrations and longitudinal waves on the guidewire, eliminating the need for continuous manual shaking by the operator and significantly reducing energy consumption.
Solution Approach 2:
The device enables the guidewire to self-generate the necessary vibrations and motions to overcome friction without requiring continuous manual intervention. The motion generation device attaches to the proximal end of the guidewire and autonomously produces the required mechanical waves to facilitate advancement through tortuous vascular anatomy.
2Productivity
If excessive shaking or overly forceful shaking is applied to overcome friction, then wire advancement is achieved, but unintended consequences such as perforation of vasculature can occur
Solution Approach 1:
The patent employs dynamically adjustable motion parameters including variable amplitude, frequency, and duration of vibrations. The device can adapt the intensity and pattern of mechanical waves in real-time based on the specific vascular anatomy and resistance encountered, allowing aggressive advancement when needed while preventing excessive forces that could cause perforation.
Solution Approach 2:
The motion generation device incorporates feedback mechanisms where the operator can monitor and adjust the device output based on tactile sensations and procedural progress. The system responds to resistance changes and can modulate vibration intensity accordingly, preventing harmful excessive forces while maintaining productive advancement.
3Reliability
If the degree of shaking is tempered through skill and training to avoid complications, then safe operation is achieved, but the process is complex and requires thorough training over the course of time
Solution Approach 1:
The patent replaces the complex manual skill-based shaking technique with an automated electromechanical system. The motion generation device handles the technically challenging aspects of vibration generation and temporal coordination, eliminating the need for operators to master complex shaking techniques through extensive training while maintaining high safety standards.
4Adaptability or versatility
If manual shaking is used to overcome frictional forces in different patient vasculatures, then device advancement is enabled, but the degree of shaking required varies with each patient's unique vasculature making procedures complicated
Solution Approach 1:
The patent employs dynamically adjustable motion parameters including variable amplitude, frequency, and duration of vibrations. The device can adapt the intensity and pattern of mechanical waves in real-time based on the specific vascular anatomy and resistance encountered, allowing aggressive advancement when needed while preventing excessive forces that could cause perforation.
Solution Approach 2:
The motion generation device allows operators to modify key parameters such as vibration amplitude, frequency, and pulse duration to match the specific characteristics of different patient vasculatures. This parameter adjustability enables the same device to effectively navigate diverse anatomical configurations without increasing procedural complexity.
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 device enables reproducible and efficient advancement of interventional devices through vascular anatomy, reducing operator fatigue and minimizing the risk of complications by providing controlled vibrations and rotations, thus facilitating easier navigation through curved and diseased vasculature.
Implementation Method 1
the at least one motion source is operable to generate multimodal vibrational and rotational movement
Implementation Method 2
the at least one motion source is operable to generate multimodal vibrational and rotational movement
Data Source
AI summary
Motion generating devices for imparting motion to interventional devices to aid in the use of such interventional devices, and methods of making and using the same. An exemplary motion generating device of the present disclosure comprises at least one motion source, such as a motor, voice coil actuator, or the like, and a mating surface configured to engage an interventional device, wherein the motion generating device can impart multimodal vibrational and/or rotational movement, both independently and/or simultaneously, to the interventional device thereby aiding in the advancement of the interventional device through the vasculature of a patient.