Permanent percutaneous devices

Area of Science:

• Biomaterials Science
• Tissue Engineering
• Medical Device Design

Background:

• Percutaneous devices (PDs) are crucial for connecting internal body structures to external equipment.
• Current PDs frequently fail due to breakdown at the skin interface shortly after implantation.
• This limits their clinical utility and necessitates improved designs.

Purpose of the Study:

• To review the current understanding of percutaneous device-skin interface pathophysiology.
• To identify key factors contributing to the failure of percutaneous devices.
• To discuss ongoing research and clinical reports on permanent percutaneous devices.

Main Methods:

• Literature review of the pathophysiology of the PD-skin interface.
• Analysis of epidermal healing peculiarities in relation to PDs.
• Evaluation of biomaterial compatibility and mechanical stress at the interface.

Main Results:

• The PD-skin interface failure is a common mode for all current devices.
• Factors contributing to failure include impaired epidermal healing, lack of biocompatible materials, and mechanical stresses.
• These factors can act independently or in combination to cause device failure.

Conclusions:

• Improving percutaneous device longevity requires addressing the challenges of epidermal healing and biomaterial integration.
• Further research into novel biomaterials and interface designs is essential.
• Optimizing mechanical stability at the PD-skin interface is critical for long-term function.