05125411 is referenced by 5 patents and cites 7 patents.

An ultrasound probe is located in a chamber defined in a housing to be inserted into a body cavity of a subject. A drive shaft is connected to the probe to transmit a rotational force and, for this purpose, is coupled to a drive source via a passage of an insertion section of an ultrasound diagnostic apparatus. A first sealing member is provided for blocking a communication between the chamber and one end of the passage, a second sealing member is provided for sealing the other end of the passage of the guide member, and a bypass communication passage is provided for enabling the passage to communicate with the chamber. An opening/closing valve is provided for opening and closing the communication passage via which an ultrasound transmitting medium is filled in the chamber and the passage of the insertion passage. The communication passage is blocked after the filling operation has been done.

Title
Ultrasound diagnostic apparatus for use in a body cavity
Application Number
7/648201
Publication Number
5125411
Application Date
January 31, 1991
Publication Date
June 30, 1992
Inventor
Kenji Hirooka
Hachioji
JP
Kazuya Saiga
Hachioji
JP
Takeshi Yokoi
Hino
JP
Agent
Frishauf Holtz Goodman & Woodward
Assignee
Olympus Optical
JP
IPC
A61B 8/14
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