DE3378401D1 - Ultrasonic oscillator - Google Patents

Ultrasonic oscillator

Info

Publication number
DE3378401D1
DE3378401D1 DE8383901103T DE3378401T DE3378401D1 DE 3378401 D1 DE3378401 D1 DE 3378401D1 DE 8383901103 T DE8383901103 T DE 8383901103T DE 3378401 T DE3378401 T DE 3378401T DE 3378401 D1 DE3378401 D1 DE 3378401D1
Authority
DE
Germany
Prior art keywords
horn
power
resistor
transistor
base
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.)
Expired
Application number
DE8383901103T
Other languages
English (en)
Inventor
Yasuo Noguchi
Masaru Shibata
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Bakelite Co Ltd
Original Assignee
Sumitomo Bakelite Co Ltd
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 Sumitomo Bakelite Co Ltd filed Critical Sumitomo Bakelite Co Ltd
Application granted granted Critical
Publication of DE3378401D1 publication Critical patent/DE3378401D1/de
Expired legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
    • A61B17/22004Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves
    • A61B17/22012Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32Surgical cutting instruments
    • A61B17/320068Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
    • A61B2017/32007Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic with suction or vacuum means
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2217/00General characteristics of surgical instruments
    • A61B2217/002Auxiliary appliance
    • A61B2217/005Auxiliary appliance with suction drainage system
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2217/00General characteristics of surgical instruments
    • A61B2217/002Auxiliary appliance
    • A61B2217/007Auxiliary appliance with irrigation system
DE8383901103T 1983-04-04 1983-04-04 Ultrasonic oscillator Expired DE3378401D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP1983/000106 WO1984003828A1 (en) 1983-04-04 1983-04-04 Ultrasonic oscillator

Publications (1)

Publication Number Publication Date
DE3378401D1 true DE3378401D1 (en) 1988-12-15

Family

ID=13789978

Family Applications (2)

Application Number Title Priority Date Filing Date
DE8383901103T Expired DE3378401D1 (en) 1983-04-04 1983-04-04 Ultrasonic oscillator
DE198383901103T Pending DE139753T1 (de) 1983-04-04 1983-04-04 Ultraschall-oszillator.

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE198383901103T Pending DE139753T1 (de) 1983-04-04 1983-04-04 Ultraschall-oszillator.

Country Status (4)

Country Link
US (1) US4587958A (de)
EP (1) EP0139753B1 (de)
DE (2) DE3378401D1 (de)
WO (1) WO1984003828A1 (de)

Families Citing this family (112)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8402845A (nl) * 1984-09-14 1986-04-01 Enraf Nonius Inrichting voor het behandelen van een patient met ultrageluidsgolven, alsmede behandelkop voor een dergelijke inrichting.
JPS61279239A (ja) * 1985-06-04 1986-12-10 日本赤外線工業株式会社 超音波手術装置
JPS6266848A (ja) * 1985-09-20 1987-03-26 住友ベークライト株式会社 外科手術用具
SE461010B (sv) 1985-11-08 1989-12-18 Swedemed Ab Anordning vid ultraljudskniv
US4634419A (en) * 1985-12-13 1987-01-06 Cooper Lasersonics, Inc. Angulated ultrasonic surgical handpieces and method for their production
US4989588A (en) * 1986-03-10 1991-02-05 Olympus Optical Co., Ltd. Medical treatment device utilizing ultrasonic wave
US4827911A (en) * 1986-04-02 1989-05-09 Cooper Lasersonics, Inc. Method and apparatus for ultrasonic surgical fragmentation and removal of tissue
US4791915A (en) * 1986-09-29 1988-12-20 Dynawave Corporation Ultrasound therapy device
WO1988003783A1 (en) * 1986-11-27 1988-06-02 Sumitomo Bakelite Company, Limited Ultrasonic surgical apparatus
US4935909A (en) * 1986-12-10 1990-06-19 Emhart Industries Inc. Piezoelectric signaling device
US4754186A (en) * 1986-12-23 1988-06-28 E. I. Du Pont De Nemours And Company Drive network for an ultrasonic probe
DE3807004A1 (de) * 1987-03-02 1988-09-15 Olympus Optical Co Ultraschall-behandlungsgeraet
SE459711B (sv) * 1987-03-20 1989-07-31 Swedemed Ab Utrustning foer anvaendning vid kirurgiska ingrepp foer att avlaegsna vaevnader
DE3860719D1 (de) * 1987-03-20 1990-11-08 Siemens Ag Geraet zur erzeugung und abstrahlung von ultraschall,insbesondre fuer ultraschall-therapie.
US4931047A (en) * 1987-09-30 1990-06-05 Cavitron, Inc. Method and apparatus for providing enhanced tissue fragmentation and/or hemostasis
US4810922A (en) * 1988-01-19 1989-03-07 Sundstrand Data Control, Inc. Damping decoupled oscillator using a high impedance crystal
US5163421A (en) * 1988-01-22 1992-11-17 Angiosonics, Inc. In vivo ultrasonic system with angioplasty and ultrasonic contrast imaging
CA1325458C (en) * 1988-01-22 1993-12-21 Jonathan Bernstein Vivo ultrasonic system for angioplasty and ultrasonic contrast imaging
AU613712B2 (en) * 1988-01-22 1991-08-08 Angiosonics, Inc. System for angioplasty and ultrasonic contrast imaging
US5243986A (en) * 1988-04-30 1993-09-14 Richard Wolf Gmbh Dissolution of concretions in a bodily cavity
DE3814743C2 (de) * 1988-04-30 1994-01-27 Wolf Gmbh Richard Einrichtung zur Auflösung von Konkrementen in einer Körperhöhle
US4965532A (en) * 1988-06-17 1990-10-23 Olympus Optical Co., Ltd. Circuit for driving ultrasonic transducer
US5139509A (en) * 1989-08-25 1992-08-18 Site Microsurgical Systems, Inc. Phacoemulsification system with handpiece simulator
US4973876A (en) * 1989-09-20 1990-11-27 Branson Ultrasonics Corporation Ultrasonic power supply
EP0424685B1 (de) * 1989-10-27 1995-05-10 Storz Instrument Company Verfahren zum Antreiben eines Ultraschallwandlers
US5076276A (en) * 1989-11-01 1991-12-31 Olympus Optical Co., Ltd. Ultrasound type treatment apparatus
US5112300A (en) * 1990-04-03 1992-05-12 Alcon Surgical, Inc. Method and apparatus for controlling ultrasonic fragmentation of body tissue
CA2042006C (en) * 1990-05-11 1995-08-29 Morito Idemoto Surgical ultrasonic horn
US5368558A (en) * 1991-01-11 1994-11-29 Baxter International Inc. Ultrasonic ablation catheter device having endoscopic component and method of using same
US5304115A (en) * 1991-01-11 1994-04-19 Baxter International Inc. Ultrasonic angioplasty device incorporating improved transmission member and ablation probe
US5957882A (en) * 1991-01-11 1999-09-28 Advanced Cardiovascular Systems, Inc. Ultrasound devices for ablating and removing obstructive matter from anatomical passageways and blood vessels
US5368557A (en) * 1991-01-11 1994-11-29 Baxter International Inc. Ultrasonic ablation catheter device having multiple ultrasound transmission members
US5447509A (en) * 1991-01-11 1995-09-05 Baxter International Inc. Ultrasound catheter system having modulated output with feedback control
US5380274A (en) * 1991-01-11 1995-01-10 Baxter International Inc. Ultrasound transmission member having improved longitudinal transmission properties
US5405318A (en) * 1992-05-05 1995-04-11 Baxter International Inc. Ultra-sound catheter for removing obstructions from tubular anatomical structures such as blood vessels
US5267954A (en) * 1991-01-11 1993-12-07 Baxter International Inc. Ultra-sound catheter for removing obstructions from tubular anatomical structures such as blood vessels
US5324255A (en) * 1991-01-11 1994-06-28 Baxter International Inc. Angioplasty and ablative devices having onboard ultrasound components and devices and methods for utilizing ultrasound to treat or prevent vasopasm
EP0611293B1 (de) * 1991-11-04 1998-03-25 Baxter International Inc. Ultraschallgerät zur ablation mit kanal für führungsdraht
US5382228A (en) * 1992-07-09 1995-01-17 Baxter International Inc. Method and device for connecting ultrasound transmission member (S) to an ultrasound generating device
US5428997A (en) * 1992-07-20 1995-07-04 Pasteur Sanofi Diagnostics Method of and device for fluid surface detection using an ultrasonic transducer
US5331951A (en) * 1992-09-04 1994-07-26 American Cyanamid Company Phacoemulsification probe drive circuit
US5388569A (en) * 1992-09-04 1995-02-14 American Cyanamid Co Phacoemulsification probe circuit with switch drive
US5370602A (en) * 1992-09-04 1994-12-06 American Cyanamid Company Phacoemulsification probe circuit with pulse width Modulating drive
CA2150487C (en) * 1992-11-30 2000-11-21 Michael D. Olichney An ultrasonic surgical handpiece and an energy initiator to maintain thevibration and linear dynamics
US5394047A (en) * 1993-02-12 1995-02-28 Ciba Corning Diagnostics Corp. Ultrasonic transducer control system
US5417672A (en) * 1993-10-04 1995-05-23 Baxter International Inc. Connector for coupling an ultrasound transducer to an ultrasound catheter
US5427118A (en) * 1993-10-04 1995-06-27 Baxter International Inc. Ultrasonic guidewire
US5390678A (en) * 1993-10-12 1995-02-21 Baxter International Inc. Method and device for measuring ultrasonic activity in an ultrasound delivery system
US5437606A (en) * 1994-03-28 1995-08-01 Tsukamoto; Kenichi Ultrasonic system to alleviate toothaches
US6689086B1 (en) 1994-10-27 2004-02-10 Advanced Cardiovascular Systems, Inc. Method of using a catheter for delivery of ultrasonic energy and medicament
US6203516B1 (en) 1996-08-29 2001-03-20 Bausch & Lomb Surgical, Inc. Phacoemulsification device and method for using dual loop frequency and power control
US5754016A (en) * 1996-09-18 1998-05-19 Dentsply Research & Development Corp Method of continuous control of tip vibration in a dental scalar system
AU6357298A (en) * 1997-04-28 1998-10-29 Ethicon Endo-Surgery, Inc. Methods and devices for controlling the vibration of ultrasonic transmission components
US6113558A (en) * 1997-09-29 2000-09-05 Angiosonics Inc. Pulsed mode lysis method
US6013048A (en) * 1997-11-07 2000-01-11 Mentor Corporation Ultrasonic assisted liposuction system
US5880580A (en) * 1998-01-29 1999-03-09 Dukane Corporation Automatic regulation of power delivered by ultrasonic transducer
US6231578B1 (en) 1998-08-05 2001-05-15 United States Surgical Corporation Ultrasonic snare for excising tissue
US20040097996A1 (en) 1999-10-05 2004-05-20 Omnisonics Medical Technologies, Inc. Apparatus and method of removing occlusions using an ultrasonic medical device operating in a transverse mode
US6339368B1 (en) 2000-03-31 2002-01-15 Zilog, Inc. Circuit for automatically driving mechanical device at its resonance frequency
US6514267B2 (en) 2001-03-26 2003-02-04 Iep Pharmaceutical Devices Inc. Ultrasonic scalpel
JP4358544B2 (ja) * 2003-04-08 2009-11-04 オリンパス株式会社 超音波アクチュエータ駆動装置及び超音波アクチュエータ駆動方法
US7794414B2 (en) 2004-02-09 2010-09-14 Emigrant Bank, N.A. Apparatus and method for an ultrasonic medical device operating in torsional and transverse modes
ES2629960T3 (es) * 2004-03-25 2017-08-16 University College Cork-National University Of Ireland, Cork Aparato para profilaxis o tratamiento de tejido
EP1819304B1 (de) 2004-12-09 2023-01-25 Twelve, Inc. Aortaklappenreparatur
US7828192B2 (en) 2005-01-03 2010-11-09 3M Innovative Properties Company Amplitude adjustment of an ultrasonic horn
US7775413B2 (en) * 2005-01-03 2010-08-17 3M Innovative Properties Company Cantilevered bar gap adjustment for an ultrasonic welding system
US7769551B2 (en) * 2005-01-03 2010-08-03 3M Innovative Properties Company Method and system for determining a gap between a vibrational body and fixed point
BRPI0518539A2 (pt) * 2005-01-03 2008-11-25 3M Innovative Properties Co mÉtodo para monitorar uma folga entre um corpo vibratàrio e uma referÊncia, e, sistema para aplicar energia ultra-sânica a uma peÇa de trabalho
US20070085614A1 (en) * 2005-09-06 2007-04-19 Joseph Lockhart Methods of enabling or disabling ultrasound vibration devices of ultrasound medical devices
US20100276061A1 (en) * 2005-12-30 2010-11-04 3M Innovative Properties Company Cantilevered bar gap adjustment for an ultrasonic welding system
US20090069830A1 (en) * 2007-06-07 2009-03-12 Piezo Resonance Innovations, Inc. Eye surgical tool
US20090030421A1 (en) * 2007-07-23 2009-01-29 Depuy Spine, Inc. Implant engagement method and device
US20090228032A1 (en) * 2008-03-06 2009-09-10 Bacoustics, Llc Ultrasonic scalpel
US20090228033A1 (en) * 2008-03-07 2009-09-10 Bacoustics, Llc Ultrasonic scalpel method
US8258886B2 (en) 2010-03-30 2012-09-04 Tyco Healthcare Group Lp System and method for improved start-up of self-oscillating electro-mechanical surgical devices
US10258505B2 (en) 2010-09-17 2019-04-16 Alcon Research, Ltd. Balanced phacoemulsification tip
CA2822381C (en) 2010-12-23 2019-04-02 Foundry Newco Xii, Inc. System for mitral valve repair and replacement
US8444664B2 (en) 2011-05-16 2013-05-21 Covidien Lp Medical ultrasound instrument with articulated jaws
WO2012177942A2 (en) 2011-06-21 2012-12-27 Hanson Gifford, Iii Prosthetic heart valve devices and associated systems and methods
US11202704B2 (en) 2011-10-19 2021-12-21 Twelve, Inc. Prosthetic heart valve devices, prosthetic mitral valves and associated systems and methods
US9763780B2 (en) 2011-10-19 2017-09-19 Twelve, Inc. Devices, systems and methods for heart valve replacement
EP2750630B1 (de) 2011-10-19 2021-06-30 Twelve, Inc. Vorrichtung für den ersatz einer herzklappe
JP6133309B2 (ja) 2011-10-19 2017-05-24 トゥエルヴ, インコーポレイテッド 人工心臓弁デバイス
US9655722B2 (en) 2011-10-19 2017-05-23 Twelve, Inc. Prosthetic heart valve devices, prosthetic mitral valves and associated systems and methods
US9039757B2 (en) 2011-10-19 2015-05-26 Twelve, Inc. Prosthetic heart valve devices, prosthetic mitral valves and associated systems and methods
US8662745B2 (en) 2011-11-11 2014-03-04 Covidien Lp Methods of measuring conditions of an ultrasonic instrument
US9351753B2 (en) 2012-01-30 2016-05-31 Covidien Lp Ultrasonic medical instrument with a curved waveguide
US9579198B2 (en) 2012-03-01 2017-02-28 Twelve, Inc. Hydraulic delivery systems for prosthetic heart valve devices and associated methods
AU2014268631B2 (en) 2013-05-20 2019-08-01 Twelve, Inc. Implantable heart valve devices, mitral valve repair devices and associated systems and methods
CN104207825B (zh) * 2013-05-31 2016-09-07 瑞奇外科器械(中国)有限公司 超声外科系统
US9622767B2 (en) 2013-09-11 2017-04-18 Covidien Lp Ultrasonic surgical instrument with cooling system
JP7111610B2 (ja) 2015-08-21 2022-08-02 トゥエルヴ, インコーポレイテッド 埋込可能な心臓弁デバイス、僧帽弁修復デバイス、ならびに関連するシステム及び方法
US10456156B2 (en) 2016-03-29 2019-10-29 Covidien Lp Devices, systems, and methods for cooling a surgical instrument
US10342566B2 (en) 2016-03-29 2019-07-09 Covidien Lp Devices, systems, and methods for cooling a surgical instrument
EP3448316B1 (de) 2016-04-29 2023-03-29 Medtronic Vascular Inc. Herzklappenprothesenvorrichtungen mit angebundenen ankern
US10702296B2 (en) * 2016-05-25 2020-07-07 Ethicon Llc Ultrasonic surgical instrument with cooling conduit
CN106108978A (zh) * 2016-08-22 2016-11-16 昆明医科大学第附属医院 一种治疗微小肾结石的超声辐射力排石装置
US10987124B2 (en) 2016-11-22 2021-04-27 Covidien Lp Surgical instruments and jaw members thereof
US10575950B2 (en) 2017-04-18 2020-03-03 Twelve, Inc. Hydraulic systems for delivering prosthetic heart valve devices and associated methods
US10433961B2 (en) 2017-04-18 2019-10-08 Twelve, Inc. Delivery systems with tethers for prosthetic heart valve devices and associated methods
US10702378B2 (en) 2017-04-18 2020-07-07 Twelve, Inc. Prosthetic heart valve device and associated systems and methods
US10792151B2 (en) 2017-05-11 2020-10-06 Twelve, Inc. Delivery systems for delivering prosthetic heart valve devices and associated methods
US10646338B2 (en) 2017-06-02 2020-05-12 Twelve, Inc. Delivery systems with telescoping capsules for deploying prosthetic heart valve devices and associated methods
US10709591B2 (en) 2017-06-06 2020-07-14 Twelve, Inc. Crimping device and method for loading stents and prosthetic heart valves
US10571435B2 (en) 2017-06-08 2020-02-25 Covidien Lp Systems and methods for digital control of ultrasonic devices
US10729541B2 (en) 2017-07-06 2020-08-04 Twelve, Inc. Prosthetic heart valve devices and associated systems and methods
US10786352B2 (en) 2017-07-06 2020-09-29 Twelve, Inc. Prosthetic heart valve devices and associated systems and methods
US11076910B2 (en) 2018-01-22 2021-08-03 Covidien Lp Jaw members for surgical instruments and surgical instruments incorporating the same
US10881424B2 (en) 2018-02-13 2021-01-05 Covidien Lp Removable fluid reservoir and ultrasonic surgical instrument including the same
US11497518B2 (en) * 2018-05-07 2022-11-15 Kogent Surgical, LLC Ultrasonic surgical handpiece
US11844563B2 (en) 2019-11-19 2023-12-19 Covidien Lp Energy-based surgical instruments incorporating cooling features
CN115252059B (zh) * 2022-05-25 2024-02-27 邦士医疗科技股份有限公司 一种超声外科手术系统

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL145136C (de) * 1967-07-25 1900-01-01
US3727112A (en) * 1969-08-29 1973-04-10 Surgical Design Corp Generator for producing ultrasonic energy
US3693613A (en) * 1970-12-09 1972-09-26 Cavitron Corp Surgical handpiece and flow control system for use therewith
CH564343A5 (de) * 1972-12-21 1975-07-31 Krasnov Mikhail M
GB1457544A (en) * 1973-11-28 1976-12-01 Mo I Vysshee Tekhn Uchilische Surgical instrument for ultrasonic separation of biological tissue
JPS5146990B2 (de) * 1973-12-12 1976-12-11
US4063557A (en) * 1976-04-01 1977-12-20 Cavitron Corporation Ultrasonic aspirator
US4169984A (en) * 1976-11-30 1979-10-02 Contract Systems Associates, Inc. Ultrasonic probe
US4184510A (en) * 1977-03-15 1980-01-22 Fibra-Sonics, Inc. Valued device for controlling vacuum in surgery
US4223676A (en) * 1977-12-19 1980-09-23 Cavitron Corporation Ultrasonic aspirator
US4245649A (en) * 1978-07-25 1981-01-20 Schmidt Andersen Poul Device for monitoring biological signals from patients, while an electro-surgical appliance is being simultaneously used
US4236510A (en) * 1979-02-21 1980-12-02 Hatter Edward E Ultrasonic tooth cleaning apparatus
US4330278A (en) * 1980-06-30 1982-05-18 Howard Martin Endodontic flow-through ultrasonic instrument holder device

Also Published As

Publication number Publication date
EP0139753A4 (de) 1986-11-20
EP0139753A1 (de) 1985-05-08
EP0139753B1 (de) 1988-11-09
WO1984003828A1 (en) 1984-10-11
DE139753T1 (de) 1986-11-27
US4587958A (en) 1986-05-13

Similar Documents

Publication Publication Date Title
DE3378401D1 (en) Ultrasonic oscillator
ES2079404T3 (es) Generador ultrasonico con un transformador piezoelectrico.
EP0367006A3 (de) Vorrichtung zum Erzeugen einer Referenzspannung für einen eine kapazitive Bootstrapschaltung enthaltenden Schalter
EP0133709A3 (de) Integrierte Photodetektorschaltung
KR880013166A (ko) 백 바이어스 전압 발생기
EP0282673A3 (de) Gerät mit batteriebetriebenem Oszillator
DE3579039D1 (de) Ultraschallwandlervorrichtung mit einer anordnung von piezoelektrischen wandlerelementen.
IT1110674B (it) Dispositivo per la conversione di vibrazioni acustiche in oscillazioni e viceversa, dotato di almeno un elemento elettrete a condensatore, collegato ad un circuito elettronico
KR910010832A (ko) 증폭기
ATE5638T1 (de) Schwingungserzeuger fuer einen ultraschallflssssigkeitszerstaeuber.
FR2410905A1 (fr) Oscillateur a quartz a un etage
JPS53111264A (en) Oscillator
EP0386712A3 (de) Bandführungsvorrichtung
EP0358299A3 (de) Oszillator mit gedämpften Oberwellen
CA2047963A1 (en) Piezo-electric oscillator
ATE41543T1 (de) Elektronisches fokussierungsgeraet fuer ultraschallwellen.
SU1195423A1 (ru) Генератор импульсов
JPS6462007A (en) Oscillator circuit
SU1157646A1 (ru) Параметрический преобразователь частоты
JPS57150012A (en) Switching power supply
JPS57173811A (en) Linear scanning mirror
KR870010683A (ko) 초음파 진동자 구동장치
ES477119A1 (es) Perfeccionamientos en dispositivos de filtro de onda acusti-ca superficial para receptores de television.
JPS56103595A (en) Electroacoustic transducer
JPS6126174U (ja) 高周波加熱装置の高周波出力検出装置

Legal Events

Date Code Title Description
8364 No opposition during term of opposition