[Advances in Surface Modification Techniques of Ureteral Stents]

Area of Science:

• Biomaterials Science
• Medical Device Engineering
• Urology

Background:

• Bacterial infection and encrustation are significant complications of ureteral stents, impacting patient outcomes.
• Understanding the formation process of these issues is crucial for developing effective prevention strategies.

Purpose of the Study:

• To comprehensively review surface modification methods for ureteral stents to combat bacterial infection and encrustation.
• To analyze the advantages and limitations of various surface modification techniques and materials.

Main Methods:

• Detailed elaboration on six surface modification methods: impregnation, spraying, vapor deposition, chemical grafting, self-assembly, and electrospinning.
• Discussion of three common ureteral stent materials: polymers, metals, and biodegradable materials.
• Analysis of surface modification techniques tailored to specific stent materials.

Main Results:

• Each surface modification technique presents unique advantages and limitations in addressing stent-related complications.
• Material choice significantly influences the selection and efficacy of surface modification strategies.
• Current methods offer partial solutions, highlighting the need for further innovation.

Conclusions:

• Advanced surface modifications and novel materials are essential for developing improved ureteral stents.
• Integration of multiple technologies and continued research hold promise for future ideal ureteral stent designs.
• Further investigation into multi-technology integration and new material development is warranted.