Implantable Lumen Constraining Line for Controlled Deployment
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Solution Overview
Problem
Existing implantable medical devices face challenges in maintaining a constrained configuration during delivery and deployment, often requiring complex manipulation outside the body, which can lead to adverse interactions with other medical instruments and increased tension requirements.
Innovation Solution
The implementation of a constraining line conduit around the circumference of the implantable medical device, allowing the constraining line to be tensioned to control the device's axial and radial constraining, with a pathway that mitigates interference with the stent pattern and graft component, enabling controlled deployment and repositioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the implantable medical device is constrained during delivery, then the device can be directed through vasculature to treatment area, but complex manipulation outside the body is required which increases device complexity
Solution Approach 1:
The constraining function is extracted from the implantable medical device itself and transferred to a separate constraining line that passes through the device. This allows the device to remain simple while the constraining mechanism is applied externally through the catheter system, reducing device complexity while maintaining ease of operation.
Solution Approach 2:
A constraining line acts as an intermediary element between the operator and the implantable medical device. The line transmits tension forces from the operator's manipulation outside the body to the device, enabling controlled constraining and deployment without requiring complex external manipulation mechanisms.
2Extent of automation
If the constraining line is tensioned to constrain the device, then controlled deployment is achieved, but adverse interactions with other medical instruments may occur
Solution Approach 1:
The constraining line is positioned at specific locations on the device (such as at the proximal end or distributed around the circumference) rather than uniformly constraining the entire device. This localized constraining approach allows controlled deployment while minimizing interference with other medical instruments that may be interacting with different portions of the device.
3Volume of moving object
If the device is constrained in a collapsed configuration, then it can be delivered through vasculature, but precise positioning and repositioning become difficult
Solution Approach 1:
The constraining line provides dynamic control over the device's configuration during delivery. By adjusting the tension on the constraining line, the operator can transition the device between collapsed and partially expanded states, enabling precise positioning and repositioning capabilities while maintaining a compact delivery profile.
Data Source
AI summary
Various aspects of the present disclosure are directed toward apparatuses, systems, and methods that include an implantable medical device and a constraining line conduit arranged around a circumference of the implantable medical device. The apparatuses, systems, and methods may also include a constraining line arranged through the constraining line conduit.