Artificial controlled model of blood circulation system for adhesive evaluation

Area of Science:

• Biomaterials Science
• Medical Device Engineering
• Hemostasis Research

Background:

• Uncontrolled bleeding from injury or surgery causes significant casualties.
• Developing effective styptics and vessel adhesives is crucial but hindered by a lack of standardized evaluation systems.
• Existing methods face challenges due to tissue variability and storage issues.

Purpose of the Study:

• To develop a novel, standardized aorta styptic evaluation system.
• To create a reliable platform for screening hemostatic agents and medical devices.
• To overcome limitations of current evaluation methods for bleeding control compounds.

Main Methods:

• Utilized decellularized swine aorta tissue, preserving extracellular matrix for structural integrity.
• Integrated a heart pump-mimicking system to simulate physiological blood flow dynamics (rate and strength).
• Adjusted pump parameters to replicate various circulatory conditions based on patient factors.

Main Results:

• The developed model demonstrated comparable adhesive efficacy to intact aorta using Cyanoacrylate as a control.
• Decellularized aorta provided improved stability over intact tissues, addressing variability from storage and origin.
• The system successfully simulated diverse circulatory conditions, validating its utility.

Conclusions:

• The developed system offers a standardized and reliable method for evaluating styptic compounds and vessel adhesives.
• This platform can accelerate the screening and development of new hemostatic agents.
• The system's versatility allows for the evaluation of other medical devices, including stents and medications.