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A A Gostev1, P P Laktionov2, A A Karpenko2

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Synthetic cardiovascular prostheses made from advanced polyurethanes offer improved biocompatibility and mechanical strength. This review explores new polyurethane subclasses and manufacturing technologies for better long-term performance in vascular grafts.

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Area of Science:

  • Biomaterials Science
  • Polymer Chemistry
  • Cardiovascular Engineering

Background:

  • Clinical need for synthetic cardiovascular prostheses with long-term patency.
  • Polyurethanes offer excellent bio- and hemocompatibility and good mechanical properties.
  • Polyurethanes are prone to degradation in vivo, necessitating material improvements.

Purpose of the Study:

  • To review modern subclasses of polyurethanes for cardiovascular applications.
  • To discuss the biological and mechanical properties of these advanced polyurethanes.
  • To explore contemporary manufacturing technologies for polyurethane-based medical devices.

Main Methods:

  • Literature review of scientific publications and patents.
  • Analysis of biological and mechanical properties of various polyurethane subclasses.
  • Examination of manufacturing techniques for implantable medical devices.

Main Results:

  • Development of new polyurethane subclasses: thermoplastic polyether polyurethanes, silicone-segmented polyurethanes, polycarbonate polyurethanes, and nanocomposite polyurethanes.
  • Advancements in production technologies for vascular grafts, heart valves, and other medical devices.
  • Improved understanding of structure-property relationships for enhanced prosthesis performance.

Conclusions:

  • Modern polyurethane subclasses show promise for overcoming degradation issues in cardiovascular prostheses.
  • Advanced manufacturing technologies are enabling the production of sophisticated polyurethane-based medical implants.
  • Further research into tailored polyurethane materials and fabrication methods is crucial for clinical success.