Jms Co., Ltd.

Shuji Fukutaki

Takashi Yamamoto

Junichi Ide

Yuka Yamashina

Ayaka Yamamoto

A stent can ensure storability in thin tubular members such as delivery systems and is insusceptible to positional displacement after placement of the stent in an affected part of a bodily conduit. This synthetic resin comprises a tubular first braid component comprising a plurality of fibers that are braided into a net-like form, and a second braid component comprising a plurality of fibers that are disposed braided into the first braid component to form an annular shape. The first braid component includes a plurality of first fibers, a plurality of second fibers, and a plurality of first intersections. The second braid component includes a plurality of wave-like third fibers disposed separated in an axial direction and a plurality of wave-like fourth fibers disposed separated in the axial direction. At least one of the first intersections is disposed in an intersection region surrounded by the third fiber and the fourth fiber.

Synthetic resin stent

Provided is a synthetic resin stent with which it is possible to improve the resistance to pressure applied radially from the outside in a state of expanded diameter even when the fibers are thinned. A synthetic resin stentprovided with a stent main body partand a diameter expansion mechanismthat connects to the stent main body partand changes the stent main body partfrom a state of contracted diameter to a state of expanded diameter together with holding the stent main body partin a state of expanded diameter, wherein the diameter expansion mechanismis provided with a ring-shaped memberattached to the distal end side of the stent main body part, a string-shaped member, one end of which is connected to the proximal end side of the stent main body partand inserted through the ring-shaped memberand the other end side of which extends to the proximal end side of the stent main body part, and a locking partdisposed in the vicinity of the connecting portion of the string-shaped memberand the stent main body part, the locking partbeing capable of locking the ring-shaped member

Provided is a synthetic resin stent that has resistance to pressure externally applied from the radial direction while in an enlarged diameter state even when the synthetic resin fibers are thin. The synthetic resin stent comprises: a stent main section that is formed by synthetic resin fibers into a cylinder and that can deform from a reduced diameter state to an enlarged diameter state; and a restricting mechanism that keeps the stent main section in the enlarged diameter state by restricting the stent main section from reducing in diameter when in the enlarged diameter state. The synthetic resin stent preferably further comprises a diameter enlarging mechanism that is connected to the stent main section and that deforms the stent main section from a reduced diameter state to an enlarged diameter state.

Growing community of inventors

Hiroshima, Japan

Shuji Fukutaki