公开(公告)号：US20230190076A1

公开(公告)日：2023-06-22

申请号：US18169324

申请日：2023-02-15

Applicant: FUJIFILM Corporation

Inventor： Kazuma HORITA ,  Yoshihiro NAKAI ,  Shinya ABE

IPC: A61B1/00 ,  A61B1/005

CPC classification number: A61B1/00071 ,  A61B1/005

Abstract: Provided are a flexible tube for an endoscope, the flexible tube having good elasticity, good flexibility, and sufficient chemical resistance, an endoscopic medical device including the flexible tube for an endoscope, a method for producing the flexible tube for an endoscope, and a method for producing the endoscopic medical device. The flexible tube for an endoscope has a flexible-tube base that is tubular and that has flexibility and a polymer cover layer covering the flexible-tube base. The flexible-tube base has a spiral tube made of a metal strip and a tubular mesh member covering the spiral tube and made of braided metal wires, the tubular mesh member has a porosity of 2% to 10%, and the flexible tube has, between the flexible-tube base and the polymer cover layer, a primer layer including a silane coupling agent.

公开(公告)号：US20150272424A1

公开(公告)日：2015-10-01

申请号：US14667208

申请日：2015-03-24

Applicant: FUJIFILM Corporation

Inventor： Shinya ABE ,  Nobuharu TAKAHASHI ,  Shozo IYAMA

IPC: A61B1/00 ,  B29C47/06 ,  A61B1/005 ,  B29C47/00

CPC classification number: A61B1/0011 ,  A61B1/00071 ,  A61B1/00078 ,  A61B1/005 ,  A61B1/0055 ,  B29C47/0026 ,  B29C47/06 ,  B29L2023/007 ,  G02B23/2476

Abstract: A flexible tube for an endoscope includes a flexible tube base, an outer coating layer including a soft resin layer and a hard resin layer, a ratio changing portion, and a tapered portion. In the ratio changing portion, a percentage of a thickness of the hard resin layer decreases and a percentage of a thickness of the soft resin layer increases toward a distal side from a proximal side of the base. In the tapered portion, a ratio between the thickness of the hard resin layer and the thickness of the soft resin layer is maintained, which ratio is the same as that at a position in the ratio changing portion where the percentage of the thickness of the hard resin layer is a lower limit. In the tapered position, an outer diameter of the outer coating layer decreases toward a distal end of the flexible tube base.

Abstract translation: 一种用于内窥镜的柔性管包括柔性管底座，包括软树脂层和硬树脂层的外涂层，比例改变部分和锥形部分。 在比率变化部中，硬质树脂层的厚度的比例下降，软质树脂层的厚度的比例从基底的近侧向远侧增加。 在锥形部分中，保持硬树脂层的厚度与软质树脂层的厚度之间的比例，该比率与比变化部分中的比例相同，其中硬的树脂层的厚度的百分比 树脂层是下限。 在锥形位置，外涂层的外径朝向柔性管基部的远端减小。

公开(公告)号：US20240225425A1

公开(公告)日：2024-07-11

申请号：US18391592

申请日：2023-12-20

Applicant: FUJIFILM Corporation

Inventor： Shinya ABE ,  Ayana FURUTA ,  Ayumu KAWASHIMA

IPC: A61B1/00

CPC classification number: A61B1/00154 ,  A61B2560/04

Abstract: A guide tube of the embodiment includes a long tube main body to be inserted into a body, and a handle part provided on a proximal end side of the tube main body, in which the handle part includes an inner sheath to which a proximal end part of the tube main body is connected and a protection sheath externally inserted into the inner sheath, and the inner sheath includes a port part for supplying and discharging a fluid to and from the tube main body.

公开(公告)号：US20210298564A1

公开(公告)日：2021-09-30

申请号：US17343899

申请日：2021-06-10

Applicant: FUJIFILM Corporation

Inventor： Yoshihiro NAKAI ,  Toshihide YOSHITANI ,  Shinya ABE ,  Kazuma HORITA ,  Takeshi SENGA

IPC: A61B1/005 ,  A61B1/00 ,  A61L29/08 ,  A61L29/02 ,  B29C48/10 ,  B29C48/151

Abstract: Provided are a flexible tube for an endoscope, the flexible tube having a flexible tube base containing metal as a constituent material, a resin cover layer that covers an outer periphery of the flexible tube base, and a primer layer that includes a specific silane coupling agent and that is disposed between the flexible tube base and the resin cover layer, in which the resin cover layer includes at least one compound selected from the group consisting of polyamides, polyesters, polyurethanes, and polyolefins at least on a side of the resin cover layer in contact with the primer layer, an endoscopic medical device including the flexible tube for an endoscope, a method for producing the flexible tube for an endoscope, and a method for producing the endoscopic medical device.

公开(公告)号：US20210290034A1

公开(公告)日：2021-09-23

申请号：US17343883

申请日：2021-06-10

Applicant: FUJIFILM Corporation

Inventor： Yoshihiro NAKAI ,  Toshihide YOSHITANI ,  Shinya ABE ,  Kazuma HORITA ,  Takeshi SENGA

IPC: A61B1/005 ,  A61B1/00 ,  C22C38/18

Abstract: Provided are a flexible tube for an endoscope, the flexible tube having a flexible tube base made of metal, a resin cover layer that covers an outer periphery of the flexible tube base, and a primer layer that includes a silane coupling agent with a specific structure having an amino group and that is disposed between the flexible tube base and the resin cover layer, in which the resin cover layer includes at least one compound selected from the group consisting of polyamides, polyesters, and polyolefins on a side of the resin cover layer in contact with the primer layer, an endoscopic medical device including the flexible tube for an endoscope, a method for producing the flexible tube for an endoscope, and a method for producing the endoscopic medical device.

公开(公告)号：US20250072724A1

公开(公告)日：2025-03-06

申请号：US18817313

申请日：2024-08-28

Applicant: FUJIFILM Corporation

Inventor： Shinya ABE ,  Ayana FURUTA

IPC: A61B1/00 ,  A61B1/015 ,  A61B1/273

Abstract: Provided is an overtube with improved insertability of a distal end side of the overtube into a digestive tract. An overtube includes a supply and discharge port for supplying and discharging a fluid, a first region that is located on a distal end side with respect to the supply and discharge port and includes an outer tube, an inner tube, and a shape-deformable body, and a second region that is located on the distal end side with respect to the first region and includes the outer tube and the inner tube. The first region is switchable between a first state in which the fluid is supplied to a tube inner space between the outer tube and the inner tube via the supply and discharge port and a second state that is stiffer than the first state and in which the fluid is discharged, and the second region is softer than the second state of the first region.

公开(公告)号：US20230389783A1

公开(公告)日：2023-12-07

申请号：US18452551

申请日：2023-08-20

Applicant: FUJIFILM Corporation

Inventor： Shinya ABE ,  Tatsuya MINAGAWA

IPC: A61B1/01

CPC classification number: A61B1/01 ,  A61M25/0155

Abstract: A medical instrument guide device includes a tube main body (606) that includes an outer tube (602) having flexibility and an inner tube (604) having flexibility and being arranged inside the outer tube (602), and a shape deformable body (612) that is provided between the outer tube (602) and the inner tube (604) and is deformable along a shape of the tube main body (606).