초록 ▼

An ultrasonic endoscope apparatus having a distal end cap provided with an ultrasonic transmission window through which an ultrasonic beam is transmitted in a radial direction perpendicular to the axis of a probe of the apparatus, and a cylindrical member located adjacent to the ultrasonic transmiss

An ultrasonic endoscope apparatus having a distal end cap provided with an ultrasonic transmission window through which an ultrasonic beam is transmitted in a radial direction perpendicular to the axis of a probe of the apparatus, and a cylindrical member located adjacent to the ultrasonic transmission window. The cylindrical member extends in parallel with the axis of the distal end of the probe.

대표청구항 ▼

An ultrasonic endoscope apparatus for viewing a body cavity, said ultrasonic endoscope apparatus comprising: an insertion section adapted to be inserted into the body cavity to be observed and having a proximal end and a distal end; a first distal end support member having a front end and a rear end

An ultrasonic endoscope apparatus for viewing a body cavity, said ultrasonic endoscope apparatus comprising: an insertion section adapted to be inserted into the body cavity to be observed and having a proximal end and a distal end; a first distal end support member having a front end and a rear end, said rear end being secured to the distal end of the insertion section; an ultrasonic wave transmission window having a rear end and a front end, said rear end of the ultrasonic wave transmission window being secured to said front end of the first distal end support member and said ultrasonic wave transmission window extending around an axis of the first distal end support member to form a space therein; an ultrasonic vibrating unit provided in said space to transmit and receive an ultrasonic wave through said ultrasonic wave transmission window; a second distal end support member having a front end and a rear end, said rear end of said second distal end support member being secured to the front end of the first distal end support member and said second distal end support member being arranged near said ultrasonic transmission window in parallel with the ultrasonic wave transmission window; and an optical viewing means arranged substantially within said second distal end support member for providing both a forward observing field and an oblique observing field; wherein said ultrasonic vibrating unit is an electronic scan type ultrasonic vibrating unit emitting an ultrasonic beam over substantially a full scope of the compass.