Venus Medtech (hangzhou) Inc.

Venus Medtech Changzhou, Inc.

Venus Medtech, Inc.

Rongjun Lei

Zhifei Zhang

Qiming Zhang

Zhenjun Zi

Shouliang Lv

Jinhu Yu

The present invention provides a guidewire adjuster and a delivery-system control handle provided with the guidewire adjuster. The guidewire adjuster includes a support mechanism which has a lumen for a guidewire to extend therethrough; and a driving mechanism for driving the guidewire to move back and forth in the lumen. The guidewire adjuster is able to drive the guidewire to move with respect to a sheath of the delivery system. The support mechanism is connected to the control handle of the delivery system and forms a lumen for accommodating the guidewire. A proximal end of the sheath together with the stent can be driven to move upwardly, due to the relative movement between the guidewire and the sheath of the delivery system. Therefore, the position of the stent can be adjusted by advancing the guidewire forward when the stent has been deployed at a lower position than expected.

Guidewire adjuster and delivery-system control handle

A stent and a securely-installed artificial valve replacement device having the same, the stent being of a cylindrical structure; the top of the stent is provided with a fixed ear (); the fixed ear () has a neck portion () connected to the top of the stent, and a head portion () engaged with the fixed head of the stent; the head portion () has a bending structure for improving the overall radial thickness; and the artificial valve replacement device is comprised of a stent and a prosthetic valve fixed on the stent. The stent with a bending structure overcomes the problem of easily disengaging from the fixed head of the stent, while not affecting the release of the stent.

Stent and securely-installed artificial valve replacement device having same

A thrombus filter has a sheath, a thrombus intercepting net having an intercepting port, and an overfill prevention umbrella being a meshed structure that always surrounds the entire thrombus intercepting net. The overfill prevention umbrella has an umbrella stand and an umbrella surface, and is self-biased such that, at body temperature, the umbrella surface is configured to always converge towards the center of the intercepting port. The thrombus filter assumes a first position when the thrombus intercepting net is released from the sheath, where the distal opening of the overfill prevention umbrella is pushed open by the intercepting port. The thrombus filter assumes a second position when the thrombus intercepting net is retrieved into the sheath, where the umbrella surface converges towards the center of the intercepting port, and the open end of the umbrella surface is constricted to prevent the thrombus from escaping.

Thrombus filter and utilization method thereof

The present invention discloses a compression device for artificial valve replacing device that comprises at least two clamp unit blocks connecting with each other in sequence and enclosing a compressing channel. The compression device further comprises a guide structure for leading all clamp unit blocks to retract towards the center of the compressing channel. In this invention, when the artificial valve replacing device is placed in the compressing channel, the inner wall of the compressing channel props against the peripheral wall of the artificial valve replacing device. When the clamp unit blocks are retracting towards the center of the compressing channel under the action of outside force, the inner wall of the compressing channel applies the force directing to the center of the compressing channel. The device has the low manufacturing cost and is convenient to clean due to the simple structure, fully satisfying the requirements for operation sanitation in use. Therefore, the production and maintenance costs are reduced and the expense shifted to consumers is lowered.

Growing community of inventors

Hangzhou, China

Rongjun Lei