Lifetech Scientific (shenzhen) Co., Ltd

Btr New Material Group Co., Ltd.

Lifetech Scientific Co., Ltd.

Xuan Wu

Benhao Xiao

Dongdong Li

Haihui Zhou

Chengkun Zhou

The present invention relates to an endoluminal stent and an endoluminal stent system, with the endoluminal stent being delivered to a site at which it is to be implanted by means of a delivery device comprising a sheath for receiving the endoluminal stent. The endoluminal stent comprises a hollow tube body portion, a connection portion and a flange portion, wherein the tube body portion is connected to one end of the connection portion, the flange portion has a connection end and a suspended end opposite one another, with the connection end being connected to the other end of the connection portion in a turning connection, and the suspended end being suspended, the flange portion comprising a flange section bare wave ring made of an elastic material; the suspended end is located at a distal side of the connection end when the endoluminal stent is in a natural state; the suspended end is located at a proximal side of the connection end when the endoluminal stent is received in the sheath; and after the flange portion is released from the sheath, the flange portion automatically turns over, and the suspended end moves from the proximal side of the connection end to the distal side of the connection end. The endoluminal stent of the present invention can enhance the anchoring force thereof.

Endoluminal stent and endoluminal stent system

Provided are a natural graphite, a modified natural graphite material prepared therefrom, a preparation method, and applications. The natural graphite has the following characteristics: a particle size D50 smaller than 10 μm, and D90/D10<2.5; a 002 interplanar spacing ranging from 0.336 to 0.360 nm, I/I≤35; a saturated tap density greater than or equal to 0.6 g/cc and smaller than 1.3 g/cc; and a specific surface area greater than or equal to 1.0 m/g and smaller than 10.0 m/g. The provided natural graphite has specific particle size, orientation, tap density and surface area and can serve as a raw material for preparing modified natural graphite material, and the prepared modified natural graphite material has high isotropy and thus has better rate performance and cycle performance.

Natural graphite, modified natural graphite material prepared therefrom, preparation method, and applications

A luminal stent, including a tubular body and a skirt sleeved on the tubular body. One end of the skirt is a fixed end, and the fixed end is sealedly connected to the outer surface of the tubular body; the other end of the skirt is a free end; on a section passing through the central axis of the tubular body, the ratio of the distance between the fixed end and the free end located on the same side of the central axis of the tubular body to the vertical distance between two points of the free end on both sides of the central axis of the tubular body along the radial direction of the skirt is less than 1/2.

Growing community of inventors

Shenzhen, China

Xuan Wu