Expandable Sinus Implant Crimping for Minimally Invasive Dilation
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Solution Overview
Problem
There is a need for minimally-invasive devices and methods to treat conditions such as nasal polyposis by maintaining or dilating nasal passageways and sinus cavities, and existing expandable implants may benefit from improved delivery and crimping systems.
Innovation Solution
The development of expandable implants with a hub and filaments, which can be delivered to sinus or nasal cavities and expanded to an open configuration, and crimping devices that can move the implants between low-profile and expanded configurations using a crimping member with rotating arms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If expandable implants are used to dilate nasal passageways and sinus cavities, then airway patency is improved, but device complexity increases
Solution Approach 1:
The implant is divided into multiple legs (at least two) that can be independently positioned and configured. Each leg can be separately adjusted to engage with specific anatomical structures in the nasal passage or sinus cavity, allowing the complex dilating function to be achieved through simpler, modular components rather than a monolithic structure.
Solution Approach 2:
The implant transitions from a compressed delivery configuration to an expanded functional configuration. The legs are capable of movement between a low-profile compressed state for delivery and an expanded state for maintaining airway patency, enabling the device to adapt its structure based on operational requirements.
2Object-affected harmful factors
If minimally-invasive delivery methods are used, then patient trauma is reduced, but delivery precision requirements increase
Solution Approach 1:
The implant is delivered in a compressed configuration where the legs are positioned close together, creating a low-profile structure that can be introduced through small incisions or natural openings. The legs are nested within a compressed envelope during delivery, then expanded at the target location to achieve the desired dilating effect, thereby minimizing the size of the delivery aperture required.
3Productivity
If crimping devices with rotating arms are used, then implant compression efficiency is improved, but device complexity increases
Solution Approach 1:
The crimping device utilizes a rotating arm mechanism that dynamically adjusts the compression force applied to the implant legs. The arms can rotate between engaged and disengaged positions, allowing controlled compression during delivery and release at the target site, enabling efficient compression through mechanical motion rather than complex control systems.
Data Source
AI summary
Described here are systems, devices, and methods for delivery of an implant to a bodily cavity. The implant may include a hub and a plurality of legs, and may be moveable between a low-profile and expanded configuration. The systems may include a crimping device having a crimping member with a plurality of arms. The plurality of arms may engage the plurality of legs of the implant, and may move the legs to move the implant to the low-profile configuration. In some instances a delivery device may aid in crimping and/or delivery of the implant.