Trocar Cannula

The puncture sheath is a core instrument in modern minimally invasive surgeries, serving as the essential device for establishing and maintaining a stable working channel between the body surface and internal cavities. It is usually inserted under the assistance of a puncture needle or dilator, and then acts as a stable working channel, allowing various surgical instruments to repeatedly enter and exit, while effectively protecting the surrounding tissues from damage and maintaining the integrity of the pneumoperitoneum or the operational space. 

Core Features and Values:

· Stable working channel: Provides a sturdy and smooth inner wall channel to ensure smooth passage of surgical instruments without distortion or obstruction, thereby guaranteeing surgical efficiency.

· Excellent tissue protection: The front end of the sheath tube usually adopts a flexible or blunted design, minimizing secondary damage to surrounding tissues, nerves and blood vessels.

· Reliable sealing performance: Integrated or adaptable to various sealing valves, effectively preventing gas or liquid leakage during the insertion and removal of instruments, maintaining a stable surgical environment.

· Multiple specifications and adaptability: Offers a variety of diameters and lengths for selection to accommodate different anatomical sites and surgical requirements.

· Clear marking and visibility: Some products have scale markings at key positions, and the tip of the sheath tube has a radiation imaging function, facilitating precise positioning during the operation.