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公开(公告)号：US20180252910A1
公开(公告)日：2018-09-06
申请号：US15968846
申请日：2018-05-02
Applicant: OLYMPUS CORPORATION
Inventor： Hiroshi TSURUTA , Yasuaki KASAI , Hirokazu YOKOTA
CPC classification number: G02B23/2469 , A61B1/00006 , A61B1/00172 , A61B1/07 , G01J1/0403 , G01J1/0425 , G01J1/42 , G02B6/3566 , G02B6/3578 , G02B23/26 , G02B26/103
Abstract: An optical fiber scanner including: an elongated optical fiber that guides light; a vibration transferring member that has a through-hole through which the optical fiber is made to pass; piezoelectric elements bonded to the outer surfaces of the vibration transferring member and that perform stretching vibrations in the longitudinal direction of the optical fiber when alternating voltages at a predetermined frequency are applied thereto, thus causing the optical fiber to generate bending vibrations in directions intersecting the longitudinal direction; and a fixing part that fixes the vibration transferring member. The vibration transferring member is provided with: holding surfaces formed of flat surfaces to which the piezoelectric elements are bonded; and contact surfaces formed of flat surfaces parallel to the holding surfaces, that are provided at least partially on the inner surfaces of the through-hole, and with which the outer surface of the optical fiber is brought into contact.
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公开(公告)号：US20170010461A1
公开(公告)日：2017-01-12
申请号：US15275347
申请日：2016-09-24
Applicant: OLYMPUS CORPORATION
Inventor： Yasuaki KASAI , Hiroshi TSURUTA , Yoshiro OKAZAKI , Hirokazu YOKOTA , Kazutoshi KUMAGAI
Abstract: An optical fiber scanner includes: an elongated optical fiber; driving piezoelectric elements that are provided on an outer circumferential surface of the optical fiber and produce bending oscillation at a distal-end portion of the optical fiber as a result of an alternating voltage being applied thereto; detecting piezoelectric elements provided on the outer circumferential surface at the distal-end portion of the optical fiber; and a control unit that controls an alternating voltage to be applied to the driving piezoelectric elements on the basis of the voltages produced by the detecting piezoelectric elements.
Abstract translation: 光纤扫描器包括：细长光纤; 驱动压电元件，其设置在光纤的外周面上，并且由于施加交流电压而在光纤的前端部产生弯曲振荡; 检测设置在光纤的前端部的外周面的压电元件; 以及控制单元，其基于由检测压电元件产生的电压来控制施加到驱动压电元件的交流电压。
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公开(公告)号：US20160231561A1
公开(公告)日：2016-08-11
申请号：US15130141
申请日：2016-04-15
Applicant: OLYMPUS CORPORATION
Inventor： Yasuaki KASAI , Hiroshi TSURUTA
CPC classification number: G02B26/103 , A61B1/00006 , A61B1/00172 , A61B1/07 , G02B23/2484 , G02B23/26
Abstract: A scanner includes: an optical fiber that guides light from a light source; a drive unit including at least one actuator that, when a voltage is applied thereto, displaces an exit end of the optical fiber in a direction intersecting an optical axis; a support portion that is provided on a basal end side from the drive unit and that is spaced away from the drive unit to support the optical fiber; and a correction portion that performs correction so as to bring the center of gravity of the drive unit and a combined center of gravity of the optical fiber, the drive unit, and the support portion close to each other on a cross-section of the drive unit.
Abstract translation: 扫描器包括：光源，其引导来自光源的光; 驱动单元，其包括至少一个致动器，当施加电压时，至少一个致动器沿与光轴相交的方向移位光纤的出口端; 所述支撑部分设置在所述驱动单元的基端侧并且与所述驱动单元间隔开以支撑所述光纤; 以及校正部，其进行校正，以使驱动单元的重心和光纤，驱动单元和支撑部的组合重心彼此靠近驱动器的横截面 单元。
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公开(公告)号：US20190029507A1
公开(公告)日：2019-01-31
申请号：US16139145
申请日：2018-09-24
Applicant: OLYMPUS CORPORATION
Inventor： Hirokazu YOKOTA , Yasuaki KASAI , Hiroshi TSURUTA , Takashi YASUMI
Abstract: An optical fiber scanner includes an optical fiber and a fixed member that is fixed to the outer periphery of the optical fiber. The fixed member is provided with: two vibration parts that are adjacent to the optical fiber in radial directions of the optical fiber that intersect with each other and that expand and contract in the longitudinal direction of the optical fiber; and a connector that connects the two vibration parts. The two vibration parts respectively have inner surfaces that abut against the outer periphery of the optical fiber.
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公开(公告)号：US20170038580A1
公开(公告)日：2017-02-09
申请号：US15299534
申请日：2016-10-21
Applicant: OLYMPUS CORPORATION
Inventor： Yoshiro OKAZAKI , Yasuaki KASAI , Hiroshi TSURUTA , Hirokazu YOKOTA , Kazutoshi KUMAGAI
CPC classification number: G02B26/103 , A61B1/0017 , A61B1/00172 , A61B1/07 , G02B23/2469 , G02B23/2476
Abstract: An optical fiber scanner including: an optical fiber that guides illumination light; a piezoelectric element that is disposed at an intermediate position on the optical fiber in the long-axis direction and that displaces, due to a bending vibration, an emission end of the optical fiber in a direction intersecting the long axis; a wiring part that is electrically bonded to the piezoelectric element at a location between the piezoelectric element and the optical fiber; a tube-shaped electrically conductive frame that has an inner hole for accommodating the piezoelectric element and the optical fiber; and a holding section that fixes the frame and the piezoelectric element and that conducts electricity between the frame and the piezoelectric element.
Abstract translation: 一种光纤扫描器，包括：引导照明光的光纤; 压电元件，其设置在长轴方向的光纤中的中间位置，并且由于弯曲振动而使光纤的发射端沿与长轴交叉的方向移位; 在压电元件和光纤之间的位置处电连接到压电元件的布线部分; 管状导电框架，其具有用于容纳压电元件的内孔和光纤; 以及保持部，其固定框架和压电元件，并且在框架和压电元件之间传导电力。
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Patent Agency Ranking
公开(公告)号：US20140184020A1
公开(公告)日：2014-07-03
申请号：US14200657
申请日：2014-03-07
Applicant: Olympus Corporation
Inventor： Tomoki FUNAKUBO , Hiroshi TSURUTA
IPC: H01L41/09
CPC classification number: H01L41/0986 , A61B17/22012 , A61B17/320068 , A61B2017/32007 , A61B2017/320088 , A61B2017/320089 , A61B2018/00464 , A61N2007/0008
Abstract: Substantially uniform rigidity is ensured in all radial directions while achieving a size reduction. An ultrasonic surgical apparatus is provided, including a polygonal columnar elastic body that is formed of an elastic body and that has a substantially regular polygonal cross-section; plate-like piezoelectric elements that are secured to mutually opposing side surfaces of the polygonal columnar elastic body and that are polarized in a plate-thickness direction; a rod-like contactor that is secured to an end of the polygonal columnar elastic body and that has a smaller diameter than the polygonal-columnar elastic body; and a drive-pulse generating circuit that causes the rod-like contactor to ultrasonically vibrate by generating a vertical vibration which expands/contracts the polygonal columnar elastic body in the longitudinal direction by applying an AC voltage to the piezoelectric elements in the plate-thickness direction.
Abstract translation: 在实现尺寸减小的同时，确保在所有径向上均匀的刚度。 提供一种超声波手术装置，包括由弹性体形成且具有基本上规则的多边形横截面的多边形柱状弹性体; 板状压电元件，固定在多边形柱状弹性体的相对的侧面上，并且在板厚方向上极化; 杆状接触器，其固定在所述多边形柱状弹性体的端部，并且具有比所述多边形柱状弹性体小的直径; 以及驱动脉冲发生电路，其通过在板厚方向上向压电元件施加交流电压，通过产生使多边形柱状弹性体沿纵向方向膨胀/收缩的垂直振动而使棒状接触器超声振动 。
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公开(公告)号：US20140135663A1
公开(公告)日：2014-05-15
申请号：US14162069
申请日：2014-01-23
Applicant: OLYMPUS CORPORATION
Inventor： Tomoki FUNAKUBO , Hiroshi TSURUTA
CPC classification number: A61B17/320068 , A61B2017/32007 , A61B2017/320089 , A61B2017/320098 , B06B1/0603
Abstract: Provided is an ultrasonic vibration device with which it is possible to efficiently remove fat by generating vibrations not only in the direction parallel to a probe but also in the direction orthogonal to the probe. Provided is an ultrasonic vibration device including a polygonal columnar elastic body formed of an elastic body; a piezoelectric element that is secured to a side surface of the polygonal columnar elastic body and that is polarized in a plate-thickness direction thereof; a rod-like contactor that is secured to an end portion of the polygonal columnar elastic body and that has a smaller diameter than the polygonal columnar elastic body; and a drive-pulse generating circuit that generates a bending vibration in the polygonal columnar elastic body by applying an AC voltage in the plate-thickness direction of the piezoelectric element, thus generating an ultrasonic vibration in the rod-like contactor.
Abstract translation: 提供了一种超声波振动装置，能够通过不仅在与探针平行的方向上产生振动而且在与探针正交的方向上产生振动来有效地除去脂肪。 提供一种包括由弹性体形成的多边形柱状弹性体的超声波振动装置， 压电元件，固定在所述多边形柱状弹性体的侧面，并且在其板厚方向上极化; 杆状接触器，其固定在所述多边形柱状弹性体的端部并且具有比所述多边形柱状弹性体更小的直径; 以及驱动脉冲发生电路，通过在压电元件的板厚方向上施加交流电压而在多边形柱状弹性体中产生弯曲振动，从而在棒状接触器中产生超声波振动。
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公开(公告)号：US20170242239A1
公开(公告)日：2017-08-24
申请号：US15588789
申请日：2017-05-08
Applicant: OLYMPUS CORPORATION
Inventor： Hiroshi TSURUTA , Yasuaki KASAI , Hirokazu YOKOTA
CPC classification number: G02B23/2469 , A61B1/00172 , A61B1/07 , G02B26/103
Abstract: Provided is an optical-fiber scanner including: an optical fiber; a body fitted on a basal-end side of the optical fiber; piezoelectric elements secured to the body and causing the optical fiber to vibrate; and a securing portion to which the body is fitted at a position that is farther on a basal-end side away from the piezoelectric elements, wherein the body has a columnar portion that is formed of an elastic material to which the piezoelectric elements are attached and that has a through-hole into which the optical fiber can be inserted, and a distal-end portion that is disposed at a distal end of the columnar portion, that supports the optical fiber in a fitted state, and that has a rotator shape in which a cross-sectional area thereof in a radial direction gradually decreases toward a distal end of the optical fiber.
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公开(公告)号：US20170176742A1
公开(公告)日：2017-06-22
申请号：US15450547
申请日：2017-03-06
Applicant: OLYMPUS CORPORATION
Inventor： Yasuaki KASAI , Hiroshi TSURUTA , Hirokazu YOKOTA
CPC classification number: G02B26/103 , A61B1/04 , G02B23/2469 , G02B23/26 , H04N5/2256 , H04N2005/2255
Abstract: Provided is an optical fiber scanner including: an illumination optical fiber; an annular elastic member formed of an elastic material having an engagement hole that engages with the illumination optical fiber; and a plurality of piezoelectric elements fixed to the annular elastic member, each piezoelectric element being polarized in a radial direction of the illumination optical fiber and applied an alternating voltage in a polarization direction so as to cause the illumination optical fiber to vibrate. The annular elastic member has a vibration transmitting section to a side of which the plurality of piezoelectric elements are bonded and transmits vibrations to the illumination optical fiber, and a fiber support section that is integrally molded together with the vibration transmitting section and that is capable of supporting the illumination optical fiber.
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公开(公告)号：US20190235231A1
公开(公告)日：2019-08-01
申请号：US16382325
申请日：2019-04-12
Applicant: OLYMPUS CORPORATION
Inventor： Takashi YASUMI , Yasuaki KASAI , Hiroshi TSURUTA , Hirokazu YOKOTA
CPC classification number: G02B26/10 , A61B1/00 , G02B6/0006 , G02B6/32 , G02B2006/0098
Abstract: An optical fiber scanner of the present invention includes: an optical fiber; a vibration device that vibrates the optical fiber; and a fixturethat fixes the optical fiber. The vibration device includes: a piezoelectric element; and an elastic member thattransmits the vibration of the piezoelectric element to the optical fiber. The piezoelectric element includes: first and second piezoelectrically active region; and a piezoelectrically inactive region arranged so as to fill a space between the adjacent end surfaces of these active regions. The second moments of area of a transverse shape formed of the piezoelectric element, the optical fiber, and the elastic member in two axial directions that are orthogonal to the longitudinal axis of the optical fiber and that are orthogonal to each other are same at the position of the vibration device.
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