US 11,911,216 B2
Ultrasonic endoscope
Yasuhiko Morimoto, Kanagawa (JP)
Assigned to FUJIFILM Corporation, Tokyo (JP)
Filed by FUJIFILM Corporation, Tokyo (JP)
Filed on Sep. 2, 2022, as Appl. No. 17/902,435.
Application 17/902,435 is a continuation of application No. 16/569,166, filed on Sep. 12, 2019, granted, now 11,457,893.
Application 16/569,166 is a continuation of application No. 15/280,257, filed on Sep. 29, 2016, granted, now 10,456,109, issued on Oct. 29, 2019.
Application 15/280,257 is a continuation of application No. PCT/JP2015/059184, filed on Mar. 25, 2015.
Claims priority of application No. 2014-071316 (JP), filed on Mar. 31, 2014.
Prior Publication US 2022/0409176 A1, Dec. 29, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 8/00 (2006.01); A61B 8/12 (2006.01); A61B 1/00 (2006.01); A61B 8/08 (2006.01)
CPC A61B 8/445 (2013.01) [A61B 1/0008 (2013.01); A61B 1/00082 (2013.01); A61B 8/12 (2013.01); A61B 8/4416 (2013.01); A61B 8/461 (2013.01); A61B 8/5207 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An ultrasonic endoscope comprising:
an insertion part including a tip portion;
an ultrasonic transducer at the tip portion of the insertion part;
a balloon mounting portion which is disposed closer to a base end side of the insertion part than the ultrasonic transducer, and on which a balloon wrapping the ultrasonic transducer is mounted;
a pipe line extending in the insertion part, and configured to supply and discharge an ultrasonic transmission medium for the balloon;
a treatment tool outlet that is positioned at a tip of a treatment tool channel;
an imaging element provided in a rear of an observation window; and
a tip-side opening that is positioned at a tip of the pipe line and opens in a direction of the longitudinal axis of the insertion part,
wherein, in a side view of the tip portion, the treatment tool outlet, the observation window, a first edge of the balloon mounting portion, the tip-side opening, and a second edge of the balloon mounting portion are positioned in this order from a side on which the ultrasonic transducer is positioned in the tip portion in the side view.