A simple propulsion-chamber-system for the 16 gauge approach

Area of Science:

• Cardiovascular Interventions
• Medical Device Engineering

Background:

• Traditional propulsion chamber systems present challenges in construction and functional separation.
• Minimizing catheter diameter and puncture site size are critical for minimally invasive procedures.

Purpose of the Study:

• To present a simplified construction of a propulsion chamber system by functionally separating its elements.
• To reduce the diameter of coaxial catheter systems and enable proximal access to lesions.

Main Methods:

• Separating functional elements of the propulsion chamber system.
• Minimizing the space between coaxial catheters to reduce overall diameter.
• Bypassing the coiling chamber for propulsive fluid injection.

Main Results:

• Achieved a smaller puncture site, allowing for a 16 G catheter needle.
• Enabled punctures proximal to lesions, such as the axillary or carotid arteries.
• Reduced the risk of thrombus formation, potentially eliminating the need for heparinization.
• Separated control angiographies from the coaxial system.

Conclusions:

• The novel design simplifies propulsion chamber system construction.
• The reduced diameter and proximal access capabilities enhance procedural efficiency and safety.
• The diminished risk of thrombus formation offers a significant advantage in anticoagulation management.