Vibrating Medical Device Assembly for Embedded IVC Filter Retrieval
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Solution Overview
Problem
Current methods for retrieving implantable devices, such as IVC filters and pacemaker leads, that have become embedded in soft tissue are risky and often require significant force or complex cutting, posing challenges for safe and efficient removal.
Innovation Solution
A medical device assembly with a vibration transmission apparatus coupled to a vibration generator is used to dislodge embedded devices by transmitting vibrations through a cannula and snare system, allowing for easier extraction of the device from soft tissue.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If significant force or complex cutting is applied to retrieve embedded devices, then the device can be removed from soft tissue, but patient risk and tissue damage increase
Solution Approach 1:
The patent applies mechanical vibration through a transmission apparatus coupled to the embedded device. The vibration generator produces vibrations that travel through the transmission apparatus to the device, causing it to oscillate and gradually free itself from the soft tissue embedding without requiring significant pulling force or cutting, thus reducing tissue damage and patient risk
Solution Approach 2:
The patent replaces the traditional mechanical force-based retrieval system with a vibration-based system. Instead of applying direct mechanical pulling force or cutting to the embedded device, the system uses vibrational energy to facilitate device extraction, substituting a potentially harmful mechanical stress approach with a gentler vibrational mechanism
2Productivity
If traditional retrieval methods are used for embedded devices, then the device can be removed, but the procedure becomes time-consuming and complex
Solution Approach 1:
The vibration-based retrieval method simplifies the procedure by using a straightforward vibration transmission mechanism rather than complex cutting or forceful extraction techniques. The vibration generator and transmission apparatus provide a unified, integrated solution that reduces procedural steps and complexity while improving retrieval efficiency
Solution Approach 2:
By replacing complex mechanical manipulation and cutting procedures with a vibration-based system, the patent reduces the complexity of the retrieval procedure. The vibration transmission apparatus provides a streamlined approach that is easier to implement and requires fewer complex steps compared to traditional retrieval methods
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 method minimizes tissue damage, reduces patient risk, and facilitates faster and easier retrieval of embedded devices with reduced force compared to existing methods.
Implementation Method 1
generating a vibration with a vibration generator, transmitting the vibration along the vibration transmission apparatus to the implanted device, and vibrating the implanted device
Data Source
AI summary
An implanted device, such as an inferior vena cava filter, that is partially embedded in soft tissue is retrieved by coupling a vibration device to the implanted device. The implanted device is disembedded from the soft tissue at least in part by generating a vibration with a vibration generator, transmitting the vibration along the vibration transmission apparatus to the implanted device, and vibrating the implanted device. The implanted device is then moved away from the embedding site. A medical device assembly includes the vibration generator, the implantable device and the vibration transmission apparatus.