Vascular Cuff Geometry for Arterial Pulse Wave Attenuation

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Solution Overview

Problem

Arterial stiffening leads to increased pulse pressure and wave reflection, which can cause cognitive decline and vascular dementia by damaging sensitive organs like the brain, as existing blood pressure measurements do not adequately predict cognitive decline.

Innovation Solution

A device comprising a cuff with abutment formations that deform the vessel to alter blood flow characteristics, reducing the cross-sectional area and making the passageway non-linear, using materials like Nitinol and silicone to absorb excess energy from arterial pulses.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stress or pressure

If arterial walls are stiffened, then blood pressure control is improved, but pulse pressure increases and wave reflection increases causing damage to sensitive organs

Engineering Contradiction:

Improveblood pressure controlVSAvoidpulse pressure and wave reflection damage

Core Design Contradiction:

Stress or pressureVSObject-affected harmful factors

Solution Approach 1:

The patent introduces an intermediary device (cuff with abutment formations) positioned between the heart and sensitive organs to mediate the transmission of pressure waves. This device alters blood flow characteristics by reducing cross-sectional area and creating non-linear passageways, thereby reducing the intensity of pressure waves reaching sensitive organs while maintaining blood pressure control.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent changes physical parameters of the vascular system by introducing a cuff that modifies the vessel's cross-sectional area and geometry. The abutment formations create localized changes in vessel diameter and flow path curvature, altering flow dynamics to reduce pulse pressure transmission to sensitive organs.

Inventive Principle:

Principle #35Parameter changes

2Ease of operation

If conventional blood pressure measurements are used, then monitoring is simplified, but prediction of cognitive decline is insufficient

Engineering Contradiction:

Improvemonitoring simplicityVSAvoidcognitive decline prediction accuracy

Core Design Contradiction:

Ease of operationVSMeasurement precision

Solution Approach 1:

The patent incorporates sensors that provide feedback on actual blood flow characteristics and pressure wave intensity. This feedback mechanism enables more accurate monitoring and prediction of cognitive decline by directly measuring the impact of pressure waves on the vascular system, rather than relying on conventional blood pressure measurements alone.

Inventive Principle:

Principle #23Feedback

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 device effectively reduces the intensity of pressure waves reaching sensitive organs, potentially mitigating the risk of cognitive decline by altering blood flow dynamics and absorbing excess energy.

Implementation Method 1

A device comprising a cuff with abutment formations that deform the vessel to alter blood flow characteristics

Methodology Applied

Scientific EffectVessel deformation: Deformation

Implementation Method 2

using materials like Nitinol and silicone to absorb excess energy from arterial pulses

Methodology Applied

Scientific EffectEnergy absorption: Absorption (physical)

Data Source

PatentUS12490988B2Device and method for altering blood flow characteristics in a vessel

Publication Date: 2025.12.09 THE BRAIN PROTECTION CO PTY LTD

AI summary

A device (15, 50, 55, 60, 100, 200) for altering blood flow characteristics in a vessel (20), the device (15, 50, 55, 60, 100, 200) comprising: a cuff (10) configured to be surgically positioned around a portion of the vessel (20); a first pad (40) located on an internal wall of the cuff (10), wherein the pad (40): locally reduces a cross-sectional area of a passageway (25) extending through the cuff (10) and/or defines a passageway (25) within the cuff (10) which is non-linear.