Analysis of the properties of guiding catheters used in endovascular neurointervention

Area of Science:

• Endovascular neurointervention
• Medical device engineering
• Catheter technology

Background:

• Guiding catheters are essential tools in modern endovascular neurointervention, particularly for navigating rigid or bulky devices.
• The backup force of a guiding catheter is a critical property influencing procedural success and safety.
• Understanding catheter characteristics is vital for effective device selection.

Purpose of the Study:

• To evaluate the backup force of various guiding catheters used in endovascular neurointervention.
• To determine the relationship between guiding catheter dimensions and backup force.
• To identify optimal guiding catheter configurations for improved backup force.

Main Methods:

• Comparative analysis of different guiding catheters based on their backup force.
• Examination of guiding catheter properties, including diameter and backup force.
• Assessment of coaxial guiding catheter configurations for enhanced performance.

Main Results:

• Guiding catheters exhibit unique characteristics; backup force is not directly proportional to diameter.
• Coaxial guiding catheter use demonstrated an improvement in backup force.
• The combination of the 6Fr Envoy and 8Fr Guider Softip provided the best backup force performance.

Conclusions:

• The backup force is a paramount property for guiding catheters in endovascular neurointervention.
• Catheter selection requires consideration of individual characteristics and potential combinations.
• This study offers scientific insights to aid operators in choosing appropriate guiding catheters.