Multi-Balloon Catheter for Simultaneous Intraluminal Device Deployment

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Solution Overview

Problem

Current minimally invasive medical devices require multiple delivery systems for deploying multiple intraluminal devices in a body vessel, increasing procedure length and complexity, as each device necessitates withdrawal and reinsertion of a delivery device.

Innovation Solution

A delivery system comprising an elongate member with multiple mounting regions for expandable medical devices, such as prosthetic valves, that allows simultaneous deployment of multiple devices within a body vessel using a single delivery system, eliminating the need for repeated insertion and withdrawal of devices.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple delivery devices are used to deploy multiple intraluminal devices, then each device can be deployed at the correct location, but the procedure length and complexity increase

Engineering Contradiction:

Improvedeployment accuracyVSAvoidprocedure complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines multiple delivery functions into a single delivery device. The delivery device includes a catheter with multiple balloons mounted at different positions along its length, allowing simultaneous deployment of multiple intraluminal devices at different locations within the same vessel through one insertion procedure.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The single delivery device is designed to perform multiple deployment functions. Each balloon on the catheter can be independently inflated to deploy a stent or other intraluminal device, making the single device universal for deploying multiple different devices at multiple locations.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Productivity

If a single delivery device with multiple balloons is used, then procedure time and complexity are reduced, but the device structure becomes more complex

Engineering Contradiction:

Improvedeployment efficiencyVSAvoiddelivery device structure

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The delivery device employs a nested structure where multiple balloons are mounted along the catheter shaft. Each balloon can be independently controlled and inflated. The balloons are arranged in a linear sequence along the catheter, allowing compact packaging and systematic deployment.

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

The delivery device is segmented into multiple functional units (balloons) that can be independently activated. Each balloon corresponds to a specific deployment location, allowing selective deployment of intraluminal devices at different positions without affecting other balloons.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS8292938B2Placement of multiple intraluminal medical devices within a body vessel

Publication Date: 2012.10.23 COOK MEDICAL TECHNOLOGIES LLC

AI summary

Medical device delivery systems and related kits and methods for placing multiple expandable medical devices within a body vessel are provided. A delivery system includes first and second expandable medical devices having the same or different dimensions. Placement of the first and second expandable medical devices in a body vessel can be achieved without requiring withdrawal of one or more components of the delivery system and insertion of secondary components.