公开(公告)号：US20240139384A1

公开(公告)日：2024-05-02

申请号：US18395795

申请日：2023-12-26

Applicant: Asahi Intecc Co., Ltd.

Inventor： Soichi FUTAMI ,  Yumi TAKATA ,  Shinpei YAMAMOTO

IPC: A61L29/08

CPC classification number: A61L29/085 ,  A61L2400/10 ,  A61L2420/02

Abstract: A coating film on an elongated medical device is composed of a polymeric material that has been crosslinked by a structure given by any of formulas (1) to (3).


—CH(OH)—CH(R1)—O—C(═O)—NH—R2—NH—C(═O)—O—CH(R1)—CH(OH)—  (1)



—CH(OH)—CH(R1)—O—C(═O)—NH—R2—NH—C(═O)—O—CH(CH(R1)—OH)—  (2)



—CH(CH(R1)—OH)—O—C(═O)—NH—R2—NH—C(═O)—O—CH(CH(R1)—OH)—  (3)

公开(公告)号：US20240299631A1

公开(公告)日：2024-09-12

申请号：US18645416

申请日：2024-04-25

Applicant: Asahi Intecc Co., Ltd.

Inventor： Soichi FUTAMI ,  Yumi TAKATA ,  Shinpei YAMAMOTO

IPC: A61L29/08 ,  A61L29/14 ,  A61L31/10 ,  A61L31/14 ,  A61M25/00 ,  A61M25/09

CPC classification number: A61L29/085 ,  A61L29/145 ,  A61L31/10 ,  A61L31/145 ,  A61L2400/10 ,  A61L2420/02 ,  A61M25/0009 ,  A61M2025/0046 ,  A61M2025/09108 ,  A61M2025/09133

Abstract: An elongated medical instrument includes a base instrument and a swollen gel film coating the base instrument. The swollen gel film includes a polymer including a repeating unit with a betaine structure and a repeating unit with a carboxyl group (excluding the repeating unit with the betaine structure). A method of providing an elongated medical instrument includes applying a coating agent to a base instrument, the coating agent including a polymer having a repeating unit with an ester-bonded betaine structure, an organic solvent, and water, and forming a swollen gel film by heating coating and hydrolyzing an ester bond in the polymer.

公开(公告)号：US20240042177A1

公开(公告)日：2024-02-08

申请号：US18379279

申请日：2023-10-12

Applicant: ASAHI INTECC CO., LTD.

Inventor： Soichi FUTAMI ,  Masakazu NAKADA ,  Junji SATOZAKI ,  Yumi TAKATA

IPC: A61M25/09

CPC classification number: A61M25/09 ,  A61M2025/09133 ,  A61M2025/09191

Abstract: The guide wire includes a core shaft, a coil body with a wire helically wound around the outer periphery of the core shaft, and a coating layer provided on the outer periphery of the coil body. The coating layer has a peak portion protruding in the outer peripheral direction of the guide wire in a swollen state. On a cross-section including a central axis of the coil body, an apex of the peak portion is present at a position on a proximal end side of a first virtual straight line that extends through a central point of a first transverse section of the wire and is perpendicular to the central axis and at a position on a distal end side of a second virtual straight line that extends through a central point of second transverse section of the wire and is perpendicular to the central axis.