Arteriotomy Closure Device Using Suction for Hemostasis

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Solution Overview

Problem

Conventional radial artery compression devices for hemostasis after vascular procedures can cause arterial occlusion and patient discomfort due to direct pressure application, leading to reduced blood flow and pain.

Innovation Solution

An arteriotomy closure device employing a low modulus securement band with upward pulling force, either through suction or mechanical means, to maintain the natural geometry of the artery while achieving hemostasis without collapsing the arterial lumen.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If direct pressure is applied to the patient's wrist to achieve hemostasis, then bleeding cessation is improved, but arterial occlusion and patient discomfort increase

Engineering Contradiction:

Improvehemostasis effectivenessVSAvoidarterial occlusion and patient discomfort

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The device inverts the conventional compression approach by using a suction mechanism that creates negative pressure to draw the artery upward toward the puncture site, rather than applying downward compression force. This upward pulling force achieves hemostasis while maintaining arterial patency and reducing patient discomfort.

Inventive Principle:

Principle #13The other way round (Inversion)

Solution Approach 2:

The patent replaces the traditional mechanical compression system with a suction-based system that uses negative pressure to achieve the same hemostatic effect without the harmful side effects of direct pressure application.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If compression force is applied to stop bleeding, then hemostasis is achieved, but blood flow through the artery is reduced

Engineering Contradiction:

ImprovehemostasisVSAvoidblood flow

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

Instead of compressing the artery downward to stop bleeding, the device pulls the artery upward using suction, creating a pulling force that closes the puncture site while maintaining the artery's natural geometry and blood flow capacity.

Inventive Principle:

Principle #13The other way round (Inversion)

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 prevents arterial occlusion and reduces patient discomfort by maintaining blood flow and minimizing tissue compression, facilitating more comfortable and effective hemostasis.

Implementation Method 1

The arteriotomy closure device employs a low modulus securement band with upward pulling force, either through suction or mechanical means, to maintain the natural geometry of the artery while achieving hemostasis without collapsing the arterial lumen.

Methodology Applied

Scientific EffectSuction: Suction

Implementation Method 2

The securement band is configured to be adhesively bonded to the skin overlying an arteriotomy

Methodology Applied

Scientific EffectAdhesive: Adhesive

Data Source

PatentUS20240041472A1Positive displacement closure devices and methods

Publication Date: 2024.02.08 TRANSLUMINAL TECH INC

AI summary

Devices and methods for creating hemostasis at a subcutaneous vascular puncture are disclosed. The methods and devices may be used to close vascular punctures following trans-radial arterial procedures, e.g., catheterization and percutaneous coronary intervention. The devices may include a housing defining a suction chamber and an anvil disposed within the suction chamber and adhesively attached to the limb of a patient such that the apparatus creates a pulling force as well as a pushing force on the patient's skin, subcutaneous tissue, and artery. Alternatively, the pulling force and pushing force may be accomplished be mechanical means.