公开(公告)号：US11730551B2

公开(公告)日：2023-08-22

申请号：US17176676

申请日：2021-02-16

Applicant: CANON U.S.A., INC.

Inventor： Christopher Charles Kaiser

IPC: A61B34/30 ,  A61B17/00 ,  A61B1/005 ,  A61M25/00 ,  A61M25/01

CPC classification number: A61B34/30 ,  A61B17/00234 ,  A61B1/0055 ,  A61B1/0057 ,  A61B2017/0034 ,  A61B2017/00314 ,  A61B2017/00327 ,  A61M25/0054 ,  A61M25/0113 ,  A61M2025/0098

Abstract: A steerable medical instrument, such as a catheter or endoscope, comprises a tubular body having non-steerable section and steerable sections arranged from a proximal end to a distal end thereof. The tubular body defines a tool channel and a plurality of wire conduits formed along the wall of the tubular body. The steerable section includes wire-guiding members arranged in lengthwise direction alternated with void regions. A control wire arranged in a first conduit within the wall of the tubular body is connected to an actuator and transfers an actuating force to bend the steerable section. An electrical cable arranged along the wall of the tubular body has strain relief elements. The strain relief elements are portions of the cable arranged in at least one void region and configured to freely move within the void regions to provide strain relief to the electrical cable when the tubular body bends.

公开(公告)号：US20210259790A1

公开(公告)日：2021-08-26

申请号：US17176676

申请日：2021-02-16

Applicant: CANON U.S.A., INC.

Inventor： Christopher Charles Kaiser

IPC: A61B34/30 ,  A61B17/00

Abstract: A steerable medical instrument, such as a catheter or endoscope, comprises a tubular body having non-steerable section and steerable sections arranged from a proximal end to a distal end thereof. The tubular body defines a tool channel and a plurality of wire conduits formed along the wall of the tubular body. The steerable section includes wire-guiding members arranged in lengthwise direction alternated with void regions. A control wire arranged in a first conduit within the wall of the tubular body is connected to an actuator and transfers an actuating force to bend the steerable section. An electrical cable arranged along the wall of the tubular body has strain relief elements. The strain relief elements are portions of the cable arranged in at least one void region and configured to freely move within the void regions to provide strain relief to the electrical cable when the tubular body bends.

公开(公告)号：US20230016761A1

公开(公告)日：2023-01-19

申请号：US17811036

申请日：2022-07-06

Applicant: Canon U.S.A., Inc.

Inventor： Christopher Charles Kaiser ,  Lydia Olson ,  Benedict Shia

IPC: A61B34/20

Abstract: Some embodiments of a device comprise a tubular flexible body that includes a channel though a longitudinal axis; a first sensor that is located in a distal end of the tubular flexible body; a second sensor that is located in the distal end of the tubular flexible body; and wiring that connects to the first sensor and the second sensor and that extends to a proximal end of the tubular flexible body, wherein a sensed orientation of the first sensor is oriented opposite to a sensed orientation of the second sensor.

公开(公告)号：US20220126060A1

公开(公告)日：2022-04-28

申请号：US17508753

申请日：2021-10-22

Applicant: CANON U.S.A., INC.

Inventor： Benedict Shia ,  Zachary Hamilton Haubert ,  Christopher Charles Kaiser ,  Takahisa Kato

IPC: A61M25/00 ,  A61L29/08 ,  A61M25/01

Abstract: A catheter sheath comprises: a central lumen extrusion having an inner layer defining a central lumen, a reinforcing structure surrounding the inner layer, and an outer layer surrounding the reinforcing structure; a plurality of rings are arranged on the outer layer of the central lumen extrusion at a predetermined distance from each other in a distal section of the sheath; and an outer jacket encloses the rings and central lumen extrusion. The reinforcing structure includes one or more of a braid, a coil, and a laser-cut tube embedded between the inner layer and the outer layer; the central lumen extrusion is bonded with an adhesive or laser welded or pressure fit to one or more of the rings. The reinforcing structure is offset towards the inner or the outer surface; and the rings have chamfered or beveled or rounded inner edges.