I provide (10) nerve intervention for micro-catheter and catheter. Comprises in sequence (25) (24), the coating layer (23), reinforcing layer smoothing layer from the inside out, a smoothing layer (23) covering layer (25) consists of a polymer material together, the wall of the catheter reinforced a support layer (24) layers, each connected a smoothing layer (23), the coating layer (25), it is possible to connect together the layers of the catheter, from the vicinity of the catheter to a direction far proximal portion (11) and I include in the order of the extension part. Exhibits a braided structure proximal portion (11) (24) reinforcement layer, I exhibit a helical structure in the stretching section. [Selection Figure Figure 2カテーテル及び神経インターベンション用マイクロカテーテル(10)を提供する。カテーテルの管壁は内から外へ平滑層(23)、補強層(24)、被覆層(25)を順に含み、平滑層(23)と被覆層(25)は共に高分子材料から成り、補強層(24)は支持層であって、平滑層(23)、被覆層(25)とそれぞれ接続し、カテーテルの各層を一緒に接続するとともに、カテーテルの近くから遠い方向へ近位部(11)及び延伸部を順に含む。補強層(24)は近位部(11)において編み構造を呈し、延伸部において螺旋構造を呈する。【選択図】図2
