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US4936307A Expired / Lapsed US ⏱️ 0.0 years remaining

Ultrasonic observation system and an ultrasonic endoscope system

Assignee: Olympus Corp
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Filing: 1988-04-14
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Granted: 1990-06-26
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Expires: 2008-04-14
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Abstract

Abstract In a probe for observing an ultrasonic image, which obtains the ultrasonic image of an object to be observed such as a body cavity by means of an ultrasonic transmitting and receiving means, a mechanical scanning operation of the ultrasonic transmitting and receiving means is performed by an ultrasonic driving means, and thus it is possible to obtain a good diagnosis image with no distortion and no flicker because noises of the driving means can be reduced. Therefore, an ultrasonic endoscope system and an ultrasonic video endoscope system etc. which utilize the probe mentioned above can display a good ultrasonic image and a good optical image.

Inventors

  • 👤 Yoshitake Saito
  • 👤 Tatsuo Nagasaki
  • 👤 Takashi Tsukaya
  • 👤 Tsuguhisa Sasai
  • 👤 Akira Hasegawa
  • 👤 Takeaki Nakamura
  • 👤 Koichi Matsui
  • 👤 Akira Murata
  • 👤 Hiroki Hibino
  • 👤 Yutaka Ohshima
  • 👤 Koji Yamaya
  • 👤 Michio Sato
  • 👤 Akira Suzuki
  • 👤 Koji Kambara
  • 👤 Masaaki Hayashi
  • 👤 Hideo Adachi
  • 👤 Hideo Tomabechi

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 13:59
CPC Classifications
A; A61; A61B; A61B8/00; A61B8/12; A61B8/44; A61B8/4444; A61B8/445; A61B8/4461; G; G10; G10K; G10K11/00; G10K11/18; G10K11/26; G10K11/35

Claims Analysis

Total Claims: 29
Claim 1
Independent Claim 138 words
A probe for observing an ultrasonic image, comprising: an insertion section for being inserted into an object to be observed, an ultrasonic transmitting and receiving means provided in a distal end portion of said insertion section for transmitting an ultrasonic wave to the object and for receiving the ultrasonic wave reflected on the object, in which the received ultrasonic wave is converted into an electric signal, and an ultrasonic driving motor for rotating said ultrasonic transmitting and receiving means to effect a mechanical scanning operation using the ultrasonic wave with respect to the object to be observed, said ultrasonic motor comprising a rotor connected to said ultrasonic transmitting and receiving means and a stator secured to one of said insertion section and a member fixed relative to said insertion section, said rotor being in contact with said stator.
Claim 2
Dependent Claim 138 words
A probe for observing an ultrasonic image, comprising: an insertion section for being inserted into an object to be observed, an ultrasonic transmitting and receiving means provided in a distal end portion of said insertion section for transmitting an ultrasonic wave to the object and for receiving the ultrasonic wave reflected on the object, in which the received ultrasonic wave is converted into an electric signal, and an ultrasonic driving motor for rotating said ultrasonic transmitting and receiving means to effect a mechanical scanning operation using the ultrasonic wave with respect to the object to be observed, said ultrasonic motor comprising a rotor connected to said ultrasonic transmitting and receiving means and a stator secured to one of said insertion section and a member fixed relative to said insertion section, said rotor being in contact with said stator.
Claim 3
Dependent Claim 22 words
A probe according to claim 1, wherein said ultrasonic driving motor is arranged in the distal end portion of said insertion section.
Claim 4
Dependent Claim 21 words
A probe according to claim 2, wherein said stator is fixed to a hard tip part of the distal end portion.
Claim 5
Dependent Claim 42 words
A probe according to claim 3, wherein an ultrasonic vibrating element provided in said ultrasonic transmitting and receiving means is rotatably secured to the hard tip part, and the rotor of the ultrasonic driving motor is connected to the ultrasonic vibrating element.
Claim 6
Dependent Claim 47 words
A probe according to claim 4, wherein an ultrasonic linear motor is provided in the distal end portion, and the ultrasonic vibrating element and the ultrasonic driving motor are moved integrally along a rotation shaft of the ultrasonic vibrating element by means of the ultrasonic linear motor.
Claim 7
Dependent Claim 57 words
A probe according to claim 4, wherein a rotation shaft connected to a holder in which the ultrasonic vibrating element is fixed is rotatably secured to the hard tip part via a bearing, and one of the rotation shaft and the bearing is used for the rotor while the other of them is used for the stator.
Claim 8
Dependent Claim 58 words
A probe according to claim 3, wherein said ultrasonic transmitting and receiving means comprises an ultrasonic vibrating element fixed to the hard tip part and an ultrasonic reflection mirror secured rotatably to the hard tip part, and the rotor of the ultrasonic driving motor is connected to the ultrasonic reflection mirror of said ultrasonic transmitting and receiving means.
Claim 9
Dependent Claim 18 words
A probe according to claim 7, wherein the rotor is constructed as a part of the reflection mirror.
Claim 10
Dependent Claim 17 words
A probe according to claim 3, wherein the rotor is coaxially arranged with respect to the stator.
Claim 11
Dependent Claim 31 words
A probe according to claim 1, wherein an operation section is arranged in a proximal end of said insertion section, and said ultrasonic driving motor is arranged in the operation section.
Claim 12
Dependent Claim 61 words
A probe according to claim 10, further comprising a rotation shaft extended in said insertion section, one end of said rotation shaft being connected to said ultrasonic transmitting and receiving means, and wherein said rotor is connected to a proximal end of the rotation shaft and said member to which said stator is fixed is a housing of said operation section.
Claim 13
Dependent Claim 58 words
A probe according to claim 11, wherein an ultrasonic vibrating element provided in said ultrasonic transmitting and receiving means is rotatably secured to a hard tip part of the distal end portion, and the rotor of the ultrasonic driving motor is connected to the ultrasonic vibrating element of said ultrasonic transmitting and receiving means through the rotation shaft.
Claim 14
Dependent Claim 16 words
A probe according to claim 11, wherein the rotation shaft is integrally formed with the rotor.
Claim 15
Dependent Claim 74 words
A probe according to claim 11, wherein said ultrasonic transmitting and receiving means comprises an ultrasonic vibrating element of said ultrasonic transmitting and receiving means, fixed to a hard tip part of the distal end portion and an ultrasonic reflection mirror secured rotatably to the hard tip part, and the rotor of the ultrasonic driving motor is connected to the ultrasonic reflection mirror of said ultrasonic transmitting and receiving means through the rotation shaft.
Claim 16
Dependent Claim 21 words
A probe according to claim 11, wherein the rotor and the stator are arranged coaxially with respect to the rotation shaft.
Claim 17
Dependent Claim 41 words
A probe according to claim 11, wherein center axes of the rotor and the stator are shifted with respect to an axis of the rotation shaft, and a rotation power transmitting means is arranged between the rotor and the rotation shaft.
Claim 18
Dependent Claim 40 words
A probe according to claim 1, wherein a drive section is arranged between said insertion section and an operation section provided in a proximal end of said insertion section, and said ultrasonic driving motor is arranged in the drive section.
Claim 19
Dependent Claim 61 words
A probe according to claim 17, further comprising a rotation shaft extended in said insertion section, one end of said rotation shaft being connected to said ultrasonic transmitting and receiving means, and wherein said rotor is connected to a proximal end of the rotation shaft and said member to which said stator is fixed is a housing of said drive section.
Claim 20
Dependent Claim 58 words
A probe according to claim 18, wherein an ultrasonic vibrating element provided in said ultrasonic transmitting and receiving means is rotatably secured to a hard tip part of the distal end portion, and the rotor of the ultrasonic driving motor is connected to the ultrasonic vibrating element of said ultrasonic transmitting and receiving means through the rotation shaft.
Claim 21
Dependent Claim 16 words
A probe according to claim 18, wherein the rotation shaft is integrally formed with the rotor.
Claim 22
Dependent Claim 74 words
A probe according to claim 18, wherein said ultrasonic transmitting and receiving means comprises an ultrasonic vibrating element of said ultrasonic transmitting and receiving means, fixed to a hard tip part of the distal end portion and an ultrasonic reflection mirror secured rotatably to the hard tip part, and the rotor of the ultrasonic driving motor is connected to the ultrasonic reflection mirror of said ultrasonic transmitting and receiving means through the rotation shaft.
Claim 23
Dependent Claim 21 words
A probe according to claim 18, wherein the rotor and the stator are arranged coaxially with respect to the rotation shaft.
Claim 24
Dependent Claim 41 words
A probe according to claim 18, wherein center axes of the rotor and the stator are shifted with respect to an axis of the rotation shaft, and a rotation power transmitting means is arranged between the rotor and the rotation shaft.
Claim 25
Dependent Claim 24 words
A probe according to claim 4 or 7, further comprising an observation means for obtaining an optical image of the object to be observed.
Claim 26
Dependent Claim 27 words
A probe according to claim 24, wherein a through hole is arranged in the ultrasonic vibrating element, and said observation means is extended in the through hole.
Claim 27
Dependent Claim 36 words
A probe according to claim 24, wherein a second ultrasonic motor is arranged in the distal end portion spaced apart from the ultrasonic driving motor and said observation means is rotated by the second ultrasonic motor.
Claim 28
Dependent Claim 37 words
A probe according to claim 24, wherein said observation means comprises a light guide extended in said insertion section, an objective lens provided in the distal end portion, and an image guide extended in said insertion section.
Claim 29
Dependent Claim 27 words
A probe according to claim 1, wherein said ultrasonic transmitting and receiving means has a plurality of ultrasonic vibrating elements having different focal distances with each other.

References Cited (Backward Citations)

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US4545441A Cited
US4494549A Cited
WO1983003749A1 Cited
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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1993-06-25 1993-12-25 1994-06-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1997-06-25 1997-12-25 1998-06-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2001-06-25 2001-12-25 2002-06-26 $7700.00 Window Closed / Lapsed

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