Vascular Closure Device Sleeve for Blood Flow Obstruction

Solution Overview

Problem

Current vascular closure devices require a sheath exchange, which increases procedural complexity, costs, and risks of infection due to the need for different sheaths for treatment and closure procedures, especially after femoral arterial punctures.

Innovation Solution

A vascular closure device featuring a carrier tube with dual lumens and a movable sleeve that allows blood flow for anchor deployment and sealing, eliminating the need for a separate sheath exchange by integrating blood flashback capabilities within the device.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a separate insertion sheath is used for vascular closure procedures, then anchor positioning and sealing can be performed effectively, but procedural complexity increases and infection risk rises due to sheath exchange requirements

Engineering Contradiction:

Improvesealing effectivenessVSAvoidsheath exchange requirement

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the functions of the insertion sheath and closure device into a single integrated carrier tube structure. The carrier tube serves both as the insertion pathway and as the delivery mechanism for the anchor and sealing member, eliminating the need for separate sheaths and exchange procedures while maintaining effective anchor positioning and vessel sealing capability

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The carrier tube is designed to perform multiple functions: it acts as the insertion sheath for delivering the closure device, provides structural support during anchor deployment, and serves as the delivery mechanism for the sealing member. This multi-functional design eliminates the need for separate specialized sheaths for different procedural stages

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Reliability

If a separate insertion sheath is used for vascular closure procedures, then anchor positioning and sealing can be performed effectively, but procedural time increases due to sheath exchange requirements

Engineering Contradiction:

Improvesealing effectivenessVSAvoidprocedural time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent combines the functions of the insertion sheath and closure device into a single integrated carrier tube structure. The carrier tube serves both as the insertion pathway and as the delivery mechanism for the anchor and sealing member, eliminating the need for separate sheaths and exchange procedures while maintaining effective anchor positioning and vessel sealing capability

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The closure device is pre-loaded into the carrier tube in the correct configuration before insertion. The anchor, suture, and sealing member are all prepared and positioned within the carrier tube system prior to patient insertion, allowing immediate deployment upon reaching the target site without requiring intermediate sheath exchanges

Inventive Principle:

Principle #10Preliminary action

3Reliability

If a separate insertion sheath is used for vascular closure procedures, then anchor positioning and sealing can be performed effectively, but infection risk increases due to multiple access points

Engineering Contradiction:

Improvesealing effectivenessVSAvoidinfection risk

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent combines the functions of the insertion sheath and closure device into a single integrated carrier tube structure. The carrier tube serves both as the insertion pathway and as the delivery mechanism for the anchor and sealing member, eliminating the need for separate sheaths and exchange procedures while maintaining effective anchor positioning and vessel sealing capability

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent extracts the closure device functions from the separate insertion sheath system and integrates them directly into the carrier tube. By removing the requirement for a second specialized sheath, the design eliminates the additional access point and manipulation step that would otherwise increase infection risk

Inventive Principle:

Principle #2Taking out (Extraction)

Data Source

PatentEP2950722B1Vascular closure device with bleed back lumen obstructable by a sleeve

Publication Date: 2017.12.20 TERUMO PUERTO RICO L L C

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AI summary

A vascular closure device includes a carrier tube and a sleeve. The carrier tube includes at least first and second lumens, the first lumen being configured to hold a sealing member, the second lumen being configured to provide blood flow from a distal opening thereof to a proximal opening thereof. The sleeve is positioned on the carrier tube and movable from a first position wherein blood flow through the second lumen is unobstructed, and a second position covering the distal and proximal openings to block blood flow through the second lumen.