公开(公告)号：US20220323720A1

公开(公告)日：2022-10-13

申请号：US17638959

申请日：2020-09-04

Applicant: NIPRO CORPORATION

Inventor： Koji KAMEOKA ,  Yoshihiro MORI

IPC: A61M25/01

Abstract: A support catheter includes: a distal shaft shaped as a tube into which a therapeutic catheter is insertable, the distal shaft including an inner layer and a reinforcing layer, the reinforcing layer being shaped as a tubular mesh including metal wires wound in first and second opposite directions; and a proximal shaft connected to the distal shaft. The reinforcing layer includes welds at intersections of the metal wires wound in the first and second directions. The welds are located in a limited region in a circumferential direction of the distal shaft. A covering member is located outside the welds.

公开(公告)号：US20250120739A1

公开(公告)日：2025-04-17

申请号：US18568494

申请日：2022-06-09

Applicant: NIPRO CORPORATION

Inventor： Koji KAMEOKA

IPC: A61B17/34 ,  A61B17/00 ,  A61B90/00

Abstract: An atrial septum perforation device including: at a distal end of a shaft, a perforation head part that performs perforation operation on a body tissue; and, at a proximal end of the shaft, an operation handle gripped by a practitioner. A distal end portion of the shaft is a shaft curved part that is curved in one direction. The operation handle includes a rotational operation assisting surface that extends vertically or horizontally when a direction of curving of the shaft curved part is set to a roughly 4 o'clock direction around a body axis parallel line of a patient so that the perforation head part is turned to a fossa ovalis.

公开(公告)号：US20240058572A1

公开(公告)日：2024-02-22

申请号：US18256993

申请日：2021-12-07

Applicant: NIPRO CORPORATION

Inventor： Koji KAMEOKA ,  Yoshihiro MORI ,  Emi KUSAKABE

IPC: A61M25/00

CPC classification number: A61M25/005 ,  A61M25/0045 ,  A61M25/0012

Abstract: This method for manufacturing a catheter involves manufacturing a catheter that includes a braided body having a first element wire and a second element wire intersecting the first element wire, and an outer layer provided on the outer circumference of the braided body, the method comprising: a coating step in which the outer-circumferential side of the braided body is coated with a laser-light-transmissive coating member; a cutting step in which a portion of the first element wire and/or the second element wire in the braided body is irradiated with laser light from the outer side of the coating member and the element wire is cut, said portion being positioned further toward the distal-end side than an intersecting part; and a removal step in which the coating member is removed from the outer-circumferential side of the braided body.