US 11,986,163 B2
Endoscope and endoscope system controlled by pair of cable bundles
Kunihiko Onobori, Tokyo (JP); and Kohei Iketani, Tokyo (JP)
Assigned to HOYA CORPORATION, Tokyo (JP)
Appl. No. 17/257,358
Filed by HOYA CORPORATION, Tokyo (JP)
PCT Filed Dec. 24, 2019, PCT No. PCT/JP2019/050640
§ 371(c)(1), (2) Date Dec. 31, 2020,
PCT Pub. No. WO2020/138091, PCT Pub. Date Jul. 2, 2020.
Claims priority of application No. 2018-248160 (JP), filed on Dec. 28, 2018.
Prior Publication US 2021/0267439 A1, Sep. 2, 2021
Int. Cl. A61B 1/06 (2006.01); A61B 1/00 (2006.01); A61B 1/005 (2006.01); A61B 1/04 (2006.01); A61B 1/05 (2006.01); A61B 1/07 (2006.01)
CPC A61B 1/06 (2013.01) [A61B 1/00121 (2013.01); A61B 1/00167 (2013.01); A61B 1/005 (2013.01); A61B 1/0051 (2013.01); A61B 1/04 (2013.01); A61B 1/05 (2013.01); A61B 1/07 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An endoscope, comprising:
an insertion portion that is covered with an exterior tube with an outer diameter of 1 mm or less, the insertion portion including a bending section provided on a tip of the insertion portion, and a soft portion which is less bendable than the bending section;
an observation optical system that includes a rectangular image sensor having a rectangular image pickup board and that is fixed to the tip of the insertion portion and having a length of one side of 60% or less of the outer diameter of the insertion portion;
an illumination fiber that is arranged between an inner surface of the exterior tube and an edge of the observation optical system and penetrates the exterior tube;
a cable bundle that is divided into two sub-bundles and is physically and directly connected to the image pickup board and penetrates the exterior tube;
a connector that is connected to the cable bundle and the illumination fiber;
a bending shaft about which the sub-bundles are wound and being capable of towing any one of the sub-bundles between the exterior tube and a first tube by rotation of the bending shaft;
the first tube that is connected to the exterior tube via a branch; and
a second tube that is connected to the exterior tube via the branch,
wherein the connector includes:
a first connector that connects the cable bundle, which is connected to the image sensor to penetrate the exterior tube and the first tube, to an endoscope processor, and
a second connector that connects the illumination fiber, which penetrates the exterior tube and the second tube, to a light source device.