Korea Advanced Institute of Science and Technology

Seung Gyu Kang

Doo Yong Lee

Hyun Seok Lee

Su Bon Kim

Su Hwan Park

Young Gi Jung

Seong Pil Byeon

Yun Jin Gu

Hye Hyun Han

Dong Myoung Lee

Myeong Jin Kim

Cheong Jun Kim

Ji Hye Hwang

The present invention discloses a steerable guidewire and a method for manufacturing the same, and a steerable catheter and a method for manufacturing the same. According to an aspect of the present invention, a steerable guidewire, which is inserted into a catheter and guides the catheter to a desired blood vessel, may include: a steerable tip part that can be bent in at least two stages due to a stimulus from the outside and that is steered in a predetermined direction; and a non-steerable tip part that is not steerable. The steerable tip part may include: a first steerable tip part having a first length and bent in a first angle with respect to the non-steerable tip part; and a second steerable tip part having one end connected to the first steerable tip part, having a second length, and bent and steered into a second angle with respect to the non-steerable tip part. The first steerable tip part may be positioned farther from the non-steerable tip part than the second steerable tip part. The first length of the first steerable tip part may be smaller than a sum of lengths of steerable tip parts other than the first steerable tip part, and the first angle may be steered so as to be larger than the second angle.

Steerable guidewire and method for manufacturing steerable guidewire, steerable catheter and method for manufacturing steerable catheter

The present invention relates to a direction-controllable drug injection catheter. According to the present invention, provided is the catheter extending along a central axis 'A' including a drug injection part in which a drug injection channel has been formed; a channel opening and closing means which opens and closes the drug injection channel; and a steering structure which is rotationally asymmetric with respect to the central axis 'A' and varies according to a pressure change of the drug injection channel for the purpose of steering.

Direction-controllable catheter using drug injection channel

Growing community of inventors

Daejeon, South Korea

Seung Gyu Kang