公开(公告)号：US20170216567A1

公开(公告)日：2017-08-03

申请号：US15515068

申请日：2015-08-25

Applicant: PIOLAX MEDICAL DEVICES, INC.

Inventor： Masanori KITAGAWA ,  Kazutaka NANAUMI

IPC: A61M25/10 ,  A61M25/00

CPC classification number: A61M25/1006 ,  A61M25/00 ,  A61M25/0052 ,  A61M25/10 ,  A61M2025/0018 ,  A61M2025/0079 ,  A61M2025/1061 ,  A61M2025/1079

Abstract: One embodiment provides a balloon catheter which has an inner tube having a main lumen and an outer tube which forms an expansion lumen. A part of the inner tube is connected to the outer tube at a position closer to the proximal end than a balloon, a side hole is open at the connection section, and a weak section is provided to the inner tube a position closer to the distal end than the side hole. The weak section has lower rigidity than the remaining portion of the inner tube. When the balloon is expanded by fluid supplied to the expansion lumen, the weak section is pressed by the fluid pressure to thereby close the main lumen of the inner tube.

公开(公告)号：US20200146701A1

公开(公告)日：2020-05-14

申请号：US16632834

申请日：2018-08-17

Applicant: PIOLAX MEDICAL DEVICES, INC.

Inventor： Toshiyuki IRIE ,  Kazutaka NANAUMI ,  Shuji ISOZAKI

IPC: A61B17/221

Abstract: Provided is an intraluminal foreign object capturing tool with which it is possible to cause a capturing member for capturing a foreign object to expand to an appropriate diameter. The foreign object capturing tool, in order to capture a foreign object in a lumen, includes: a core wire; a capturing member which is disposed movably outside the core wire, has a farthest tip-end which is movement-regulated at a predetermined position of the core wire, and expands in diameter by contracting axially; a tubular member which is disposed outside the core wire on a base end side of the capturing member, and which regulates movement of capturing member on the base end side; and control members which are disposed outside the core wire and inside the capturing member, and which regulate the amount of axial contraction of the capturing member. As the tubular member and the core wire are moved relative to each other, the capturing member contracts axially by a length regulated by the control member and expands in diameter.