DE69120637D1 - Ultraschall-Dopler-Blutfussmessgerät - Google Patents

Ultraschall-Dopler-Blutfussmessgerät

Info

Publication number
DE69120637D1
DE69120637D1 DE69120637T DE69120637T DE69120637D1 DE 69120637 D1 DE69120637 D1 DE 69120637D1 DE 69120637 T DE69120637 T DE 69120637T DE 69120637 T DE69120637 T DE 69120637T DE 69120637 D1 DE69120637 D1 DE 69120637D1
Authority
DE
Germany
Prior art keywords
dopler
ultrasound
blood flow
flow meter
meter
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 - Fee Related
Application number
DE69120637T
Other languages
English (en)
Other versions
DE69120637T2 (de
Inventor
Morio Nishigaki
Hiroshi Fukukita
Hisashi Hagiwara
Junichiro Ninomiya
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Application granted granted Critical
Publication of DE69120637D1 publication Critical patent/DE69120637D1/de
Publication of DE69120637T2 publication Critical patent/DE69120637T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/34—Muting amplifier when no signal is present or when only weak signals are present, or caused by the presence of noise signals, e.g. squelch systems
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/88—Sonar systems specially adapted for specific applications
    • G01S15/89—Sonar systems specially adapted for specific applications for mapping or imaging
    • G01S15/8906—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
    • G01S15/8979—Combined Doppler and pulse-echo imaging systems
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
    • H03F1/303—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters using a switching device

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Acoustics & Sound (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
DE69120637T 1990-11-30 1991-11-11 Ultraschall-Dopler-Blutfussmessgerät Expired - Fee Related DE69120637T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP33822590 1990-11-30
JP3243068A JP2615519B2 (ja) 1990-11-30 1991-09-24 超音波ドプラ血流計

Publications (2)

Publication Number Publication Date
DE69120637D1 true DE69120637D1 (de) 1996-08-08
DE69120637T2 DE69120637T2 (de) 1997-01-30

Family

ID=26536074

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69120637T Expired - Fee Related DE69120637T2 (de) 1990-11-30 1991-11-11 Ultraschall-Dopler-Blutfussmessgerät

Country Status (4)

Country Link
US (1) US5261407A (de)
EP (1) EP0488545B1 (de)
JP (1) JP2615519B2 (de)
DE (1) DE69120637T2 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69417296T2 (de) * 1993-06-28 1999-11-04 Csem Centre Suisse D`Electronique Et De Microtechnique S.A. - Recherche Et Developpement, Neuchatel Schaltung zur Verarbeitung von Signalen mit einer Eingangsstufe mit veränderbarer Verstärkung
GB0030449D0 (en) * 2000-12-13 2001-01-24 Deltex Guernsey Ltd Improvements in or relating to doppler haemodynamic monitors
US7806828B2 (en) * 2002-02-05 2010-10-05 Inceptio Medical Technologies, Lc Multiplanar ultrasonic vascular sensor assembly and apparatus for movably affixing a sensor assembly to a body
US6755789B2 (en) * 2002-02-05 2004-06-29 Inceptio Medical Technologies, Llc Ultrasonic vascular imaging system and method of blood vessel cannulation
JP4779692B2 (ja) * 2006-02-17 2011-09-28 セイコーエプソン株式会社 発振回路及び物理量トランスデューサ
JP5472914B2 (ja) 2010-05-19 2014-04-16 株式会社東芝 超音波診断装置
JP6212922B2 (ja) 2013-04-23 2017-10-18 株式会社リコー チョッパ増幅装置
JP6245853B2 (ja) * 2013-06-11 2017-12-13 東芝メディカルシステムズ株式会社 超音波診断装置
US9642525B2 (en) 2013-11-22 2017-05-09 Johnson & Johnson Vision Care, Inc. Ophthalmic lens with retinal vascularization monitoring system
CN108594238B (zh) * 2018-03-21 2021-10-01 哈尔滨工程大学 基于瞬态信号的水声换能器电声性能校准装置及校准方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56106158A (en) * 1980-01-29 1981-08-24 Tokyo Keiki Co Ltd Speedometer
US4407293A (en) * 1981-04-24 1983-10-04 Diasonics, Inc. Ultrasound imaging apparatus for providing simultaneous B-scan and Doppler data
JPS5920149A (ja) * 1982-07-28 1984-02-01 富士通株式会社 超音波パルスドプラ血流計
JPS6055934A (ja) * 1983-09-08 1985-04-01 松下電器産業株式会社 超音波血流計
JPH0614930B2 (ja) * 1985-02-19 1994-03-02 株式会社日立メデイコ 超音波診断装置
JPS62155836A (ja) * 1985-12-27 1987-07-10 松下電器産業株式会社 超音波ドツプラ血流計
EP0202920B1 (de) * 1985-05-20 1994-03-09 Matsushita Electric Industrial Co., Ltd. Blutgeschwindigkeitsmesser nach dem Ultraschall-Doppler-Prinzip
JPS63317792A (ja) * 1987-06-22 1988-12-26 Yokogawa Medical Syst Ltd パルスドプラ装置
JPH01270859A (ja) * 1988-04-22 1989-10-30 Matsushita Electric Ind Co Ltd 超音波ドップラ血流計および血流速度測定法

Also Published As

Publication number Publication date
EP0488545B1 (de) 1996-07-03
JP2615519B2 (ja) 1997-05-28
EP0488545A2 (de) 1992-06-03
US5261407A (en) 1993-11-16
EP0488545A3 (en) 1993-03-03
JPH053870A (ja) 1993-01-14
DE69120637T2 (de) 1997-01-30

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee