US 12,226,257 B2
Ultrasonic endoscope
Noboru Kinomoto, Kanagawa (JP)
Assigned to FUJIFILM Corporation, Tokyo (JP)
Filed by FUJIFILM Corporation, Tokyo (JP)
Filed on Sep. 1, 2022, as Appl. No. 17/900,875.
Application 17/900,875 is a continuation of application No. PCT/JP2021/011308, filed on Mar. 19, 2021.
Claims priority of application No. 2020-055658 (JP), filed on Mar. 26, 2020.
Prior Publication US 2022/0409174 A1, Dec. 29, 2022
Int. Cl. A61B 8/00 (2006.01); A61B 1/00 (2006.01); A61B 1/06 (2006.01)
CPC A61B 8/44 (2013.01) [A61B 1/06 (2013.01); A61B 8/4483 (2013.01); A61B 1/00114 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An ultrasonic endoscope comprising:
a distal end portion including a distal end portion main body that is provided at a distal end side of an insertion portion and is formed of a resin material and an ultrasound oscillator that is provided at the distal end portion main body,
wherein the distal end portion main body includes
an illumination system that includes an illumination lens, a fiber, and a first metal member holding the illumination lens and the fiber,
a first insertion hole into which the first metal member is inserted,
a first fixing member that fixes the first metal member inserted into the first insertion hole to the distal end portion main body and that has conductivity,
a first insert hole into which the first fixing member is inserted,
an observation system that includes an observation lens, a second metal member holding the observation lens, and a substrate on which an imaging element is mounted,
a second insertion hole into which the second metal member is inserted,
a second fixing member that fixes the second metal member inserted into the second insertion hole to the distal end portion main body and that has conductivity,
a second insert hole into which the second fixing member is inserted, and
an electrical connection member that electrically connects the first fixing member and the second fixing member to each other, and
at least one of the first metal member, the second metal member, or the electrical connection member is connected to a ground.