Elastic Connector Occlusion Device for Varying Anatomical Dimensions
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing technologies face challenges in providing occlusion devices that can effectively clamp or occlude anatomical structures of varying dimensions, such as the left atrial appendage (LAA), to prevent blood clotting and reduce the risk of stroke.
Innovation Solution
The development of an apparatus comprising a pair of elongated clamping members connected by elastic connectors, which apply tension to move the clamping members from a spaced apart position to a closed position, effectively occluding anatomical structures. This apparatus includes a deployment device to facilitate positioning and locking of the occlusion apparatus.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single fixed-size occlusion device is used, then the device structure is simple, but it cannot effectively occlude anatomical structures of varying dimensions
Solution Approach 1:
The occlusion device employs beam members with varying degrees of rigidity that can dynamically adjust their configuration. The beams can be delivered in a compressed state within the delivery catheter and then expanded or rigidized upon deployment to match the dimensions of the target anatomical structure, allowing adaptation to varying sizes without requiring multiple fixed-size devices
Solution Approach 2:
The device utilizes changes in physical parameters of the beam members, such as rigidity, length, and cross-sectional area, to adapt to different anatomical dimensions. The beams can be manufactured with gradient properties or adjustable features that allow modification of their mechanical parameters during delivery and deployment to match the specific dimensions of the target structure
2Force
If elastic connectors are used to move clamping members from spaced apart to closed position, then the occlusion force is automatically applied, but the device requires more components increasing complexity
Solution Approach 1:
The elastic connectors are configured to automatically generate and apply occlusion force without requiring additional actuation mechanisms. Once the beam members are positioned around the target structure, the elastic connectors self-engage and apply the necessary compressive force, eliminating the need for separate force application mechanisms and reducing overall device complexity
Solution Approach 2:
The elastic connectors serve as intermediary elements that transfer and regulate the occlusion force between the beam members and the target structure. These connectors act as mechanical mediators that automatically adjust the force transmission, simplifying the overall force application system by eliminating the need for complex actuation mechanisms
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 apparatus successfully occludes anatomical structures, preventing blood from entering or leaving the occluded area, thereby reducing the risk of stroke and allowing for the potential atrophy and scarring of the occluded structure over time.
Implementation Method 1
An elastic connector is provided that extends between at least the first ends of the clamping members and is operably associated with each of the clamping members such that the tension applied by the elastic connector moves the clamping members from a spaced apart position to receive tissue therebetween toward each other to clamp tissue
Implementation Method 2
At least a first resilient or elastic member connects the first beam member and the second beam member to apply a force to the beam members sufficient to cause the beam members to occlude an anatomical structure held between the beam members
Data Source
AI summary
Apparatus and methods are disclosed for occluding an anatomical structure including an occlusion apparatus having first and second beams and at least one connector for connecting the respective ends of the beams together. The occlusion apparatus may be adapted for use in a deployment device having a pair of jaws and optionally having a respective pair of shuttle bodies for releasably connecting an occlusion apparatus to the jaws while in an open position and for releasing the occlusion device from the jaws while in a closed position. A system for occluding an anatomical structure is also disclosed that includes an occlusion apparatus and a deployment device for holding the occlusion apparatus in an open position for locating the occlusion device adjacent the anatomical structure to be occluded and then moving the occlusion apparatus to a closed position and locking the occlusion apparatus in the closed position.