Venturi Contrast Suspension Mixing for Controlled Vessel Delivery

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Solution Overview

Problem

Existing methods for producing medical contrast solutions are inefficient in creating an enriched suspension of iodinated contrast medium and carbon dioxide, lacking a controlled delivery system to ensure effective mixing and application.

Innovation Solution

A medical contrast suspension generating delivery apparatus utilizing a Venturi-agitating tip assembly, a source of pressurized medical carbon dioxide, a source of iodinated contrast medium, and a dual lumen catheter, with a micro-hose connecting the carbon dioxide source to a first lumen and the contrast medium to a second lumen, ensuring effective mixing and delivery through a spray tip.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a Venturi-agitating tip assembly is used to mix iodinated contrast medium and carbon dioxide, then the mixing efficiency and suspension enrichment are improved, but the device complexity increases

Engineering Contradiction:

Improvemixing efficiencyVSAvoiddevice complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent employs a Venturi-agitating tip assembly that utilizes pneumatic principles to mix iodinated contrast medium and carbon dioxide. The Venturi effect creates a low-pressure zone that draws the contrast medium through the tip while carbon dioxide flows through the lumen, creating an enriched suspension through pneumatic agitation rather than complex mechanical mixing devices.

Inventive Principle:

Principle #29Pneumatics and hydraulics

Solution Approach 2:

The invention changes the physical parameters of the contrast medium by creating a suspension with specific concentration ratios of carbon dioxide to contrast medium. By controlling the flow rates and pressure differential through the Venturi tip, the system achieves optimal mixing parameters without requiring complex control mechanisms.

Inventive Principle:

Principle #35Parameter changes

2Manufacturing precision

If a dual lumen catheter with separate lumens is used to deliver carbon dioxide and contrast medium, then the delivery control and mixing precision are improved, but the device complexity increases

Engineering Contradiction:

Improvemixing precisionVSAvoiddevice complexity

Core Design Contradiction:

Manufacturing precisionVSDevice complexity

Solution Approach 1:

The dual lumen catheter divides the delivery function into separate channels: one lumen dedicated to carbon dioxide delivery and the other to iodinated contrast medium delivery. This segmentation allows independent control of each fluid stream while maintaining simple catheter construction, achieving precise mixing control through the Venturi effect rather than complex valve mechanisms.

Inventive Principle:

Principle #1Segmentation

3Speed

If pressurized carbon dioxide is used to create the enriched suspension, then the flow rate control and delivery speed are improved, but the energy consumption increases

Engineering Contradiction:

Improvedelivery speedVSAvoidenergy consumption

Core Design Contradiction:

SpeedVSUse of energy by moving object

Solution Approach 1:

The system uses pressurized carbon dioxide as a pneumatic driver to create the enriched contrast suspension. The pressure differential generated by the compressed CO2 provides the force necessary to draw contrast medium through the Venturi tip and create the suspended mixture, eliminating the need for separate pumps or motors and reducing overall energy consumption.

Inventive Principle:

Principle #29Pneumatics and hydraulics

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

The apparatus efficiently creates an enriched medical contrast suspension by utilizing the Venturi effect to mix and deliver the iodinated contrast medium and carbon dioxide, ensuring consistent and controlled application onto the inner lumen of a vessel.

Implementation Method 1

The present invention utilizes the Venturi effect to produce an enriched medical contrast solution. The Venturi effect is an example of Bernoulli's principle, in the case of incompressible fluid, flow through a tube or pipe with a constriction in it.

Methodology Applied

Scientific EffectVenturi effect: Venturi Effect

Implementation Method 2

The portable apparatus of the present invention utilizes a source of pressurized medical fluid, to produce the desired pressure and flow for the effective creation of an enriched medical contrast solution.

Methodology Applied

Scientific EffectCompressed gas flow: Pressure Gradient

Data Source

PatentUS20250367364A1Apparatus and method for producing an enriched medical contrast suspension

Publication Date: 2025.12.04 LEVY FRANK

AI summary

A medical contrast suspension generating delivery apparatus includes a Venturi-agitating tip assembly, a source of pressurized medical carbon dioxide, a source of an iodinated contrast medium, and a dual lumen catheter connecting the Venturi-agitating tip assembly to the source of pressurized medical carbon dioxide and the source of the iodinated contrast medium.