Intravascular Implant Delivery Shaft for Complex Vessel Deployment

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Solution Overview

Problem

Current implant delivery systems face challenges in delivering multiple implants of varying sizes and lengths to complex anatomical regions, leading to potential mismatch, increased procedural risks, and vessel damage due to turbulence and low-pressure zones, especially in neurovasculature.

Innovation Solution

A customizable implant delivery device with an inner and outer shaft, featuring a recess to maintain implants, variable flexibility, and a steerable distal tip, capable of deploying longer implants with zones that adapt to vascular anatomy, reducing turbulence and vessel collapse.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple implants of varying sizes and lengths are delivered to complex anatomical regions, then the ability to treat diverse vascular conditions is improved, but the risk of mismatch, vessel damage due to turbulence and low-pressure zones increases

Engineering Contradiction:

Improveability to treat diverse vascular conditionsVSAvoidvessel damage due to turbulence and low-pressure zones

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The implant incorporates different zones with varying flexibility characteristics along its length. The proximal portion has different flexibility than the distal portion, allowing each zone to be optimized for its specific anatomical location and functional requirements while maintaining overall system adaptability

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The implant is designed with variable flexibility that allows it to dynamically adapt to the vascular anatomy. The different zones can independently conform to varying vessel geometries, reducing turbulence and low-pressure zones while maintaining vessel patency

Inventive Principle:

Principle #15Dynamics

2Ease of operation

If a customizable implant delivery device with variable flexibility is used, then maneuverability and safety are improved, but device complexity increases

Engineering Contradiction:

ImprovemaneuverabilityVSAvoiddevice complexity

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The delivery device is divided into distinct components including an inner shaft and outer shaft that can move independently. This segmentation allows each component to be optimized for specific functions while maintaining overall system maneuverability through coordinated movement of simpler subsystems

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The implant is nested within the delivery device during delivery, with the inner shaft containing the implant and the outer shaft providing additional support and control. This nested configuration allows the complex implant structure to be delivered through a relatively simple delivery catheter system

Inventive Principle:

Principle #7Nested doll (Nesting)

Data Source

PatentUS20250360012A1Intravascular delivery systems, devices and method

Publication Date: 2025.11.27 VS3 MEDICAL INC

AI summary

Intravascular delivery systems, devices, and methods are disclosed herein. A representative delivery device can include an inner shaft defining a lumen extending along a length of the delivery device, an outer shaft surrounding the inner shaft along at least a portion of the length of the delivery device, and a tip portion distal to the outer shaft. The inner shaft can include a recess configured to receive a self-expandable implant. The outer shaft can be retractable relative to the inner shaft, and can include a functional member that provides increased tensile strength to the outer shaft, and a coil. The tip portion can extend to a distal terminus of the delivery device and include a cross-sectional dimension that tapers in a distal direction.