Venus Medtech (hangzhou) Inc.

Venus Medtech, Inc.

Quangang Gong

Zhifei Zhang

Min Frank Zeng

Zhenjun Zi

Feng Guo

Mao Chen

Yuan Feng

Shiguang Wu

A bendable sheath and a delivery system using the bendable sheath. The bendable sheath comprises a tube body (). The tube body () comprises a distal end and a proximal end. A tube wall of the tube body () is connected to a pull wire (). One end of the pull wire () extends towards the proximal end of the tube body (), and the other end is connected to the tube body () near the distal end of the tube body (). The pull wire () comprises at least a section thereof disposed freely outside the tube body () and near the distal end of the tube body (). The pull wire () in the bendable sheath comprises the section disposed freely outside the sheath tube body () and, when pulled, the section is disposed so as to facilitate the application of force. The section moves relative to the tube body (), such that a force application point is adaptively changed. The present invention improves the safety and flexibility of operations when there is a large bending radius, or when using long, hard, or inflexible intervention apparatuses.

Bendable sheath and delivery system using bendable sheath

An easy-to-control interventional instrument delivery device, comprising a core tube (), a guiding head () and a fixing head () being fixed onto the core tube (); the guiding head () is fixed at a distal end of the core tube (), and the fixing head () extends from a proximal end side of the core tube (), an interventional instrument mounting position being located between the guiding head () and the fixing head (); the outer periphery of the interventional instrument mounting position is provided with an axially skiable outer sheathing tube (), further being provided with a floating limiting strip (); a proximal end of the floating limiting strip () is a starting end () that is connected near the fixed head (), and a distal end is a terminal end () that floats between the interventional instrument mounting position and the outer sheathing tube (). The easy-to-control interventional instrument delivery device is capable of fastening an end portion of a valve stent () during stent release so as to prevent the stent () from completely falling out during release, and reduces the relative friction between the delivery device and the valve during stent release and recovery.

Easy-to-control interventional instrument delivery device

Growing community of inventors

Hangzhou, China

Quangang Gong