JPS6462131A - Endoscope - Google Patents

Endoscope

Info

Publication number
JPS6462131A
JPS6462131A JP21865987A JP21865987A JPS6462131A JP S6462131 A JPS6462131 A JP S6462131A JP 21865987 A JP21865987 A JP 21865987A JP 21865987 A JP21865987 A JP 21865987A JP S6462131 A JPS6462131 A JP S6462131A
Authority
JP
Japan
Prior art keywords
electrodes
electrode
piezoelectric body
tube
r1
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP21865987A
Inventor
Fumio Nakayama
Katsumi Yugawa
Original Assignee
Murata Manufacturing Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Murata Manufacturing Co filed Critical Murata Manufacturing Co
Priority to JP21865987A priority Critical patent/JPS6462131A/en
Publication of JPS6462131A publication Critical patent/JPS6462131A/en
Application status is Pending legal-status Critical

Links

Abstract

PURPOSE:To measure the inner diameter of a tubular body and to observe the interior of tissue, by internally mounting an ultrasonic transmitter-receiver, which transmits an ultrasonic wave to the outside from the leading end part of a tube in a specific direction and receives the reflected wave in the same direction, to the leading end part of the tube. CONSTITUTION:An ultrasonic transmitter-receiver 2 is constituted by forming electrodes to the inner and outer surfaces of a cylindrical piezoelectric body so that electrodes R1-R4, S1-S4 respectively divided into four in the circumferential direction in two upper and lower stages are formed to the outer surface and a common electrode B is formed to the inner surface. An ultrasonic wave transmitter is constituted of the four electrodes S1-S4, the common electrode B on the inner surface and the cylindrical piezoelectric body held between the electrodes on the outer and inner surfaces while an ultrasonic wave receiver is constituted of the electrodes R1-R4, the common electrode B and the cylindrical piezoelectric body held between said electrodes. At first, when an transmitting pulse is applied to the electrode S1, the piezoelectric body at the part of this electrode vibrates in a thickness mode to transmit wave reflected from the inner wall of a tube to be observed reaches the electrode R1 and the piezoelectric body at the part of this electrode vibrates to generate electromotive voltage in the electrode R1. The same processing is also performed with respect to the electrodes S2-S4 to perform measurement in the direction of the circumference 4 of the leading end part of the tube.
JP21865987A 1987-09-01 1987-09-01 Endoscope Pending JPS6462131A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21865987A JPS6462131A (en) 1987-09-01 1987-09-01 Endoscope

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21865987A JPS6462131A (en) 1987-09-01 1987-09-01 Endoscope

Publications (1)

Publication Number Publication Date
JPS6462131A true JPS6462131A (en) 1989-03-08

Family

ID=16723410

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21865987A Pending JPS6462131A (en) 1987-09-01 1987-09-01 Endoscope

Country Status (1)

Country Link
JP (1) JPS6462131A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013099589A (en) * 2007-01-19 2013-05-23 Sunnybrook Health Sciences Centre Imaging probe with combined ultrasound and optical means of imaging

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013099589A (en) * 2007-01-19 2013-05-23 Sunnybrook Health Sciences Centre Imaging probe with combined ultrasound and optical means of imaging

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