Left Atrial Appendage Occluder With Hinged Anchor Repositioning
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Solution Overview
Problem
Current implantable devices for the left atrial appendage face challenges due to variability in size and shape, limited deployment orientation, and difficulty in easy positioning and repositioning, leading to inadequate occlusion in diverse anatomies.
Innovation Solution
A medical device with an occluder and anchor portion, featuring a hingeable coupling and anchoring tines, allows for adjustable deployment and secure anchoring within the left atrial appendage, accompanied by a tissue growth member to promote endothelialization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If current implantable devices are used for left atrial appendage occlusion, then the device structure is simple, but the device cannot adapt to variability in size and shape of different anatomies
Solution Approach 1:
The device is divided into multiple segments including an occluder portion with occluder elements and an anchor portion with anchor elements. These segments can be independently positioned and adjusted to adapt to the variable size and shape of different left atrial appendage anatomies, resolving the contradiction between adaptability and structural simplicity.
Solution Approach 2:
The device incorporates movable and adjustable components that allow dynamic repositioning of the occluder and anchor portions. The hingeable coupling between portions enables the device to change its configuration during implantation, providing adaptability to diverse anatomies without requiring overly complex pre-configured structures.
2Adaptability or versatility
If current implantable devices are used for left atrial appendage occlusion, then the implantation process is straightforward, but the deployment orientation is limited
Solution Approach 1:
The device allows for repositioning and adjustment of deployment orientation through its movable components and hingeable couplings. The implantation process remains relatively straightforward as the device can self-adjust to the required orientation, eliminating the need for highly complex implantation procedures while providing orientation flexibility.
Solution Approach 2:
The device enables changes in deployment parameters such as orientation and position during implantation. The occluder and anchor portions can be independently adjusted to achieve optimal deployment orientation, providing versatility without significantly complicating the overall implantation process.
3Ease of operation
If current implantable devices are used for left atrial appendage occlusion, then the device structure is relatively simple, but positioning and repositioning is difficult
Solution Approach 1:
The device is segmented into movable portions that can be independently positioned and repositioned. The occluder portion and anchor portion can be adjusted separately, facilitating easy positioning and repositioning during implantation without requiring overly complex mechanical structures.
Solution Approach 2:
The device incorporates dynamic elements that allow for easy repositioning during implantation. The hingeable coupling and movable components enable the device to be repositioned as needed, improving ease of operation while maintaining a relatively simple overall device structure.
4Adaptability or versatility
If current implantable devices are used for left atrial appendage occlusion, then the device is less invasive compared to surgical procedures, but occlusion is inadequate in diverse anatomies
Solution Approach 1:
The device uses segmented occluder and anchor elements that can be independently positioned to achieve effective occlusion in diverse anatomies. This segmentation allows the percutaneous device to adapt to variable left atrial appendage shapes and sizes, improving occlusion effectiveness without requiring surgical-level complexity.
Solution Approach 2:
The device allows for adjustment of key parameters such as the position and configuration of occluder and anchor elements to match diverse anatomies. This parametric adjustability enables effective occlusion in varied anatomies while maintaining the less invasive percutaneous approach without excessive device complexity.
Data Source
AI summary
Devices, methods and systems are provided for occluding an opening within the tissue of a body, such as a left atrial appendage. In one embodiment, a medical device includes an occluder portion and an anchor portion. The occluder portion includes a hub that defines an axis, the occluder portion extending between a proximal end coupled to the hub and a distal end defining an occluder eyelet adjacent thereto. The anchor portion extends between a first end and a second end, the first end coupled to an anchor hub and the second end defining an anchor eyelet adjacent thereto and hingeably coupled to the occluder eyelet. With this arrangement, the anchor hub is moveable along the axis to move the anchor portion between a retracted position and a deployed position upon the occluder portion being in an expanded position.