Central Stabilizer Clot Encasement Device

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Solution Overview

Problem

Current methods for treating occluded blood vessels, such as those blocked by clots, do not effectively capture and retain particulate matters to prevent them from migrating and causing further obstructions in the vascular system.

Innovation Solution

A clot encasement and removal device featuring proximal and distal capture members with a central stabilizer that can be used to sequester and encase vascular obstructions, providing a tight seal to prevent escape and allowing for manipulation and removal of clots, including the use of self-expanding materials and radiopaque markers for guidance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If current methods are used to treat occluded blood vessels, then the treatment process is simple, but the particulate matters are not effectively captured and retained, leading to migration and further obstructions

Engineering Contradiction:

Improvecapture and retention of particulate mattersVSAvoiddevice structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The device is divided into multiple functional segments: a central stabilizer for engagement, proximal and distal capture members for enclosure, and a sealing mechanism. This segmentation allows each component to perform its specific function effectively - the stabilizer engages the clot, the capture members enclose it, and the seal prevents migration, thereby resolving the contradiction between reliability and complexity.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The proximal and distal capture members are nested within delivery catheters during insertion, and the clot is nested within the encasement formed by the capture members. This nesting approach allows the device to be delivered through narrow vascular segments in a compact form and then expanded to capture the clot, achieving reliable capture while maintaining ease of delivery.

Inventive Principle:

Principle #7Nested doll (Nesting)

2Reliability

If a tight seal is provided to prevent escape of clots, then the capture reliability is improved, but the device complexity increases due to additional sealing mechanisms

Engineering Contradiction:

Improveprevention of clot migrationVSAvoidsealing mechanism

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The capture members are constructed with flexible materials that can conform to the shape of the clot and the vascular lumen. This flexibility allows the formation of a tight seal around the clot without requiring complex mechanical sealing components, thereby achieving reliable clot containment while minimizing device complexity.

Inventive Principle:

Principle #30Flexible shells and thin films

3Adaptability or versatility

If the device is designed for minimally invasive removal of clots from narrow and tortuous segments, then the accessibility is improved, but the device complexity increases due to specialized结构设计

Engineering Contradiction:

Improveaccess to narrow and tortuous segmentsVSAvoiddevice structure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The device incorporates dynamic elements including expandable capture members and a flexible central stabilizer that can adapt to the geometry of narrow and tortuous vascular segments. The device transitions from a compressed delivery state to an expanded working state, allowing it to navigate and effectively treat clots in challenging anatomical locations without requiring multiple specialized devices.

Inventive Principle:

Principle #15Dynamics

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

Enables minimally invasive and effective removal of clots from vascular systems, particularly in narrow and tortuous segments, by capturing and retaining obstructions within the device, thereby preventing further migration and reducing the risk of complications.

Implementation Method 1

the capture members and central stabilizer may be made of self-expanding materials

Methodology Applied

Scientific EffectSelf-expanding: Elasticity

Data Source

PatentUS11284911B2Central clot stabilizer and manipulator

Publication Date: 2022.03.29 MORSI HESHAM

AI summary

A clot encasement and removal device for removing a vascular obstruction is disclosed. The encasement device comprises proximal and distal capture members and a central stabilizer. The central stabilizer provides several points of contact for interacting with and manipulating an intravascular obstruction. The central stabilizer may be coupled to the distal capture member, allowing the central stabilizer and distal capture member to be manipulated in unison. The central stabilizer may reside on a distinct delivery wire, enabling independent control of proximal and distal capture members and the central stabilizer. The proximal capture member may comprise a furrowed delivery wire to enable retraction of at least a portion of the central stabilizer within the proximal capture member.