ULTRASONIC ENDOSCOPE
FIG9 is a sectional view of a distal end portion body, illustrating the disposition of signal cables according to a modification
FIG9 is sectional view of the distal end portion body 36, illustrating another example of the disposition of the signal cables 86A and 86B in the distal end portion body 36. As illustrated in FIG9, among the two signal cables 86, the signal cable 86A (at least one of the signal cables) is disposed on one side in the second direction indicated by arrow B relative to the erecting base housing portion 62, and the signal cable 86B (at least another of the signal cables) is disposed on the other side in the second direction relative to the erecting base housing portion 62. By disposing the signal cables 86A and 86B in this way, the erecting base housing portion 62 can be lowered in the distal end portion body 36, the distance between the cleaning communication hole 84 and the erecting base 60 can be reduced, and cleaning of the back side of the erecting base 60 and the surrounding part can be easily performed. Although the external view of the sectional view shown in FIG9 is omitted, the positions of the observation window 44, the illumination windows 46L and 46R, and the air/water supply nozzle 48 may be appropriately set.
sectional view
158
opening
20
air/water supply button
52
ultrasound transmitting/receiving surface
136
distal end portion body
48
air/water supply nozzle
78
deflecting portion
10
operation unit
170
opening forming surface
72
observation means forming surface
80
treatment tool lead-out port
162
erecting base housing portion
134
distal end portion
44
observation window
62
erecting base housing portion
84
cleaning communication hole
34
distal end portion
138
axis
50
ultrasonic transducer
60
erecting base
['1. An ultrasonic endoscope comprising: an ultrasonic transducer that has an ultrasonic vibrator; a distal end portion body that is disposed continuously with a proximal end side of the ultrasonic transducer; an erecting base housing portion that is disposed in the distal end portion body and that has an opening whose opening direction is a first direction that is perpendicular to an axial direction of the distal end portion body or whose opening direction is a direction that has a component toward one side in the first direction and a component toward a distal end side in the axial direction of the distal end portion body; a treatment tool lead-out port that communicates with an inside of the erecting base housing portion and from which a treatment tool is led out; an erecting base that is disposed in the inside of the erecting base housing portion and that changes a lead out direction of the treatment tool led out from the treatment tool lead-out port; and a cleaning communication hole that is formed in a wall surface on a side opposite to a side where the opening of the erecting base housing portion is disposed and that communicates with an outside.', '2. The ultrasonic endoscope according to claim 1, comprising: an observation window that is disposed in the distal end portion body and through which a subject is observed, wherein a position of the observation window in the axial direction of the distal end portion body is located on a proximal end side relative to the erecting base housing portion.', '10. The ultrasonic endoscope according to any one of claims 1 to 9, wherein the ultrasonic transducer has an ultrasound transmitting/receiving surface that is formed in a curved shape in the axial direction of the distal end portion body.']