Multiple Loop Snare Device for Vascular Intervention
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing snare devices for medical procedures lack flexibility in terms of size and shape, requiring multiple devices or complex procedures to switch between different loop configurations, which can complicate therapies within the human body.
Innovation Solution
A snare device with multiple loops of varying sizes and shapes that can be deployed and retracted through an outer sheath using elongate shafts, allowing for independent manipulation of each loop's position and configuration, enabling practitioners to switch between loop sizes and shapes without removing the device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single snare device with fixed loop configuration is used, then the device structure is simple, but the adaptability to different therapeutic needs is limited
Solution Approach 1:
The snare device is divided into multiple independent loop structures (first loop and second loop) that can be independently deployed and manipulated. Each loop can be controlled separately through individual elongate shafts, allowing practitioners to select and use only the loop configuration needed for specific therapeutic requirements, thereby achieving versatility without requiring complete device replacement.
Solution Approach 2:
The snare device incorporates multiple loops with different sizes and shapes within a single device structure, enabling it to perform multiple functions. The device can accommodate various therapeutic needs by deploying appropriate loops for different vessel sizes, embolus types, and procedural requirements, making one device universal for diverse vascular interventions.
2Adaptability or versatility
If multiple snare devices are used to provide different loop configurations, then the adaptability is improved, but the procedural complexity and time increase
Solution Approach 1:
Multiple loop structures that would traditionally require separate devices are merged into a single integrated snare device. All loops are contained within one delivery system with a common outer sheath and handle assembly, allowing practitioners to access different loop configurations without removing and replacing entire devices, thereby saving time and simplifying the procedural workflow.
Solution Approach 2:
Multiple loops of different sizes are nested within the same delivery system, with smaller loops capable of being contained within or alongside larger loops. The elongate shafts and loops are designed to be nested within the outer sheath during delivery, and can be deployed in a controlled sequence, allowing efficient access to different loop configurations without device replacement.
3Ease of operation
If loops are made deployable through an outer sheath, then the adaptability during procedure is improved, but the device complexity increases
Solution Approach 1:
An outer sheath serves as an intermediary structure that contains and protects multiple loops during delivery while allowing controlled deployment. The sheath acts as a mediator between the compact stored configuration and the deployed working configuration, enabling smooth transition between different loop states without complex mechanical mechanisms at the loop level.
Solution Approach 2:
The loop structures are designed to be dynamically deployable and retractable through the outer sheath. The loops can transition from a compressed state within the sheath to an expanded functional state outside the sheath, and can be repositioned or reconfigured during the procedure. This dynamic capability allows flexibility in loop deployment without requiring permanently fixed complex mechanisms.
Data Source
AI summary
A snare device having multiple loops is described. The loops may be configured having various sizes or shapes and may be configured for use within a single outer sheath. Each loop provided in connection with a single snare device may have a different size, shape, disposition, or orientation than other loops associated with the same snare device.