US 11,937,785 B2
Endoscope, distal tip piece, and method of manufacturing endoscope
Keiji Ito, Tokyo (JP); Takayoshi Morishima, Tokyo (JP); and Kohei Iketani, Tokyo (JP)
Assigned to HOYA CORPORATION, Tokyo (JP)
Appl. No. 17/253,337
Filed by HOYA CORPORATION, Tokyo (JP)
PCT Filed Dec. 4, 2019, PCT No. PCT/JP2019/047304
§ 371(c)(1), (2) Date Dec. 17, 2020,
PCT Pub. No. WO2020/116481, PCT Pub. Date Jun. 11, 2020.
Claims priority of application No. 2018-228334 (JP), filed on Dec. 5, 2018.
Prior Publication US 2021/0259532 A1, Aug. 26, 2021
Int. Cl. A61B 1/00 (2006.01); A61B 1/05 (2006.01)
CPC A61B 1/05 (2013.01) [A61B 1/0011 (2013.01); A61B 1/00117 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An endoscope comprising:
an imaging unit including an image sensor and an optical component that forms an image of light incident from a first end surface on the image sensor;
a cable inserted into an insertion portion and having a first end connected to the imaging unit;
an exterior cylinder covering a connected portion between the imaging unit and the cable; and
a distal tip piece in which a housing portion having a shape fitted with a shape of the exterior cylinder is provided and which is arranged at a distal tip of the insertion portion, wherein
the imaging unit includes an imaging terminal arranged on a second end surface and connected to the image sensor,
the cable includes
a cable strand,
a connection block having a prismatic shape or square plate shape, and
a connection terminal that is arranged at a position corresponding to the imaging terminal on a first end surface of the connection block and that is connected to a first end of the cable strand,
the imaging terminal and the connection terminal are conductive, and
the imaging terminal of the imaging unit includes claws protruding toward the connection terminal of the cable, establishing a connection state with the connection terminal,
wherein the claws pierce the outer surface of the connection terminal to establish the connection state with the connection terminal.