DISTAL END UNIT OF ENDOSCOPE, AND ENDOSCOPE

    公开(公告)号:US20210369087A1

    公开(公告)日:2021-12-02

    申请号:US17401989

    申请日:2021-08-13

    Abstract: A distal end unit of an endoscope includes: a distal end frame body that is constituted by a resin molded article configuring a molded interconnect device, that is provided with an image pickup unit containing room, and that is provided with an observation opening portion that opens the image pickup unit containing room on a distal end surface exposed to an exterior; a metal layer that is provided along a flat surface of the observation opening portion; a cover glass that closes the observation opening portion; a solder layer that is bonded to the metal layer and that holds the cover glass on the distal end frame body; and an adhesive layer that covers the solder layer, the metal layer is provided at a position corresponding to a groove provided on the flat surface, and the solder layer is disposed in an interior of the groove.

    LINEAR ACTUATOR FOR ENDOSCOPE, OPTICAL UNIT FOR ENDOSCOPE, AND ENDOSCOPE

    公开(公告)号:US20200166740A1

    公开(公告)日:2020-05-28

    申请号:US16776731

    申请日:2020-01-30

    Abstract: A linear actuator for endoscope includes: a movable frame made of a magnetic material; a fixed frame in which the movable frame is provided so as to be movable forward and backward, the fixed frame being made of a non-magnetic material; two coils formed by being wound on an outer surface of the fixed frame, the two coils being disposed side by side in a longitudinal axis direction; a permanent magnet disposed in a manner stacked and superimposed on the two coils; and two yokes respectively disposed at a front and a back of the permanent magnet and the two coils.

    ENDOSCOPE AND METHOD FOR CONFIRMING GROUNDING OF ENDOSCOPE

    公开(公告)号:US20220099758A1

    公开(公告)日:2022-03-31

    申请号:US17519281

    申请日:2021-11-04

    Abstract: An endoscope can include an internal member provided at a distal end of an insertion portion a conductive external member fitted over the internal member and electrically connected to a ground. The endoscope can also include an image pickup instrument fixed to the internal member, and the image pickup instrument can include a lens. The endoscope can include an electrical connection part having a first end portion connected to the conductive member and a second end portion connected to the external member, the electrical connection part being configured to electrically connect the conductive member and the external member, a conductor wire including a third end portion electrically connected to the first end portion, and a fourth end portion that passes through an opening formed in the external member.

    ENDOSCOPE AND INSERTION PORTION THEREOF

    公开(公告)号:US20210137360A1

    公开(公告)日:2021-05-13

    申请号:US17157781

    申请日:2021-01-25

    Abstract: An endoscope includes: an objective optical system including a lens, allowing light from an imaging subject to be incident on a distal end surface, and focusing the light onto an image-capturing surface of an image-capturing element; an elongated light guide provided adjacent to a side of the system and guiding illumination light to be emitted from a distal end; and an optically transparent distal end cover disposed at a position where the distal end of the guide is covered, wherein the distal end surface is located farther forward than the distal end of the guide, a notched portion is provided at a distal-end outer edge of a side surface of the system, the side surface being adjacent to the guide, so that the system is narrower toward a front side from the distal end of the guide, and the cover is provided so as to bulge toward the notched portion.

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