DE3689698D1 - Blutgeschwindigkeitsmesser nach dem Ultraschall-Doppler-Prinzip. - Google Patents
Blutgeschwindigkeitsmesser nach dem Ultraschall-Doppler-Prinzip.Info
- Publication number
- DE3689698D1 DE3689698D1 DE86303834T DE3689698T DE3689698D1 DE 3689698 D1 DE3689698 D1 DE 3689698D1 DE 86303834 T DE86303834 T DE 86303834T DE 3689698 T DE3689698 T DE 3689698T DE 3689698 D1 DE3689698 D1 DE 3689698D1
- Authority
- DE
- Germany
- Prior art keywords
- speed meter
- meter based
- ultrasound doppler
- doppler principle
- blood speed
- 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 - Lifetime
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/06—Measuring blood flow
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Hematology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10735485A JPH0634790B2 (ja) | 1985-05-20 | 1985-05-20 | 超音波ドツプラ血流計 |
JP29679085A JPS62155836A (ja) | 1985-12-27 | 1985-12-27 | 超音波ドツプラ血流計 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3689698D1 true DE3689698D1 (de) | 1994-04-14 |
DE3689698T2 DE3689698T2 (de) | 1994-07-21 |
Family
ID=26447393
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3689698T Expired - Lifetime DE3689698T2 (de) | 1985-05-20 | 1986-05-20 | Blutgeschwindigkeitsmesser nach dem Ultraschall-Doppler-Prinzip. |
Country Status (3)
Country | Link |
---|---|
US (2) | US4848355A (de) |
EP (1) | EP0202920B1 (de) |
DE (1) | DE3689698T2 (de) |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63272333A (ja) * | 1987-04-30 | 1988-11-09 | Yokogawa Medical Syst Ltd | パルスドプラ超音波診断装置 |
US4850364A (en) * | 1987-11-12 | 1989-07-25 | Hewlett-Packard Company | Medical ultrasound imaging system with velocity-dependent rejection filtering |
JP2553635B2 (ja) * | 1988-06-15 | 1996-11-13 | 松下電器産業株式会社 | 超音波ドップラ血流計 |
DE3861466D1 (de) * | 1988-09-17 | 1991-02-07 | Hewlett Packard Gmbh | Synchrondemodulator. |
US5188112A (en) * | 1989-11-27 | 1993-02-23 | Acoustic Imaging Technologies Corporation | Ultrasonic Doppler imaging systems with improved flow sensitivity |
US5113867A (en) * | 1990-05-16 | 1992-05-19 | Janszen David A | Fluid flow characterizing |
US5063931A (en) * | 1990-11-05 | 1991-11-12 | Hewlett-Packard Company | Method and apparatus for signal dependent gain control |
JP2615519B2 (ja) * | 1990-11-30 | 1997-05-28 | 松下電器産業株式会社 | 超音波ドプラ血流計 |
US5419331A (en) * | 1994-02-10 | 1995-05-30 | The University Of Rochester | System for estimating target velocity from pulse echoes in response to their correspondence with predetermined delay trajectories corresponding to different distinct velocities |
US5695494A (en) * | 1994-12-22 | 1997-12-09 | Valleylab Inc | Rem output stage topology |
US6103084A (en) * | 1995-06-06 | 2000-08-15 | Eppendorf Netheler-Hinz Gmbh | Apparatus for electroporation |
IL140918A0 (en) | 1998-07-27 | 2002-02-10 | Genentech Inc | Improved transformation efficiency in phage display through modification of a coat protein |
US7901400B2 (en) | 1998-10-23 | 2011-03-08 | Covidien Ag | Method and system for controlling output of RF medical generator |
US6358210B2 (en) | 1999-03-31 | 2002-03-19 | Acuson Corporation | Medical diagnostic ultrasonic imaging transmit/receive method and apparatus |
WO2001069283A2 (en) | 2000-03-15 | 2001-09-20 | The Regents Of The University Of California | Method and apparatus for dynamic focusing of ultrasound energy |
EP1501435B1 (de) | 2002-05-06 | 2007-08-29 | Covidien AG | Blutdetektor zur kontrolle einer elektrochirurgischen einheit |
US7044948B2 (en) | 2002-12-10 | 2006-05-16 | Sherwood Services Ag | Circuit for controlling arc energy from an electrosurgical generator |
JP2006525096A (ja) | 2003-05-01 | 2006-11-09 | シャーウッド・サービシーズ・アクチェンゲゼルシャフト | 電気手術用発生器システムのプログラム及び制御を行う方法及びシステム |
US8104956B2 (en) | 2003-10-23 | 2012-01-31 | Covidien Ag | Thermocouple measurement circuit |
EP1675499B1 (de) | 2003-10-23 | 2011-10-19 | Covidien AG | Redundante temperaturüberwachung für elektrochirurgische systeme zur sicherheitserhöhung |
US7396336B2 (en) | 2003-10-30 | 2008-07-08 | Sherwood Services Ag | Switched resonant ultrasonic power amplifier system |
US7131860B2 (en) | 2003-11-20 | 2006-11-07 | Sherwood Services Ag | Connector systems for electrosurgical generator |
US7766905B2 (en) | 2004-02-12 | 2010-08-03 | Covidien Ag | Method and system for continuity testing of medical electrodes |
US7780662B2 (en) | 2004-03-02 | 2010-08-24 | Covidien Ag | Vessel sealing system using capacitive RF dielectric heating |
US7857763B2 (en) * | 2005-02-08 | 2010-12-28 | Alan Chi-Chung Tai | Automatic signal-optimizing transducer assembly for blood flow measurement |
US8734438B2 (en) | 2005-10-21 | 2014-05-27 | Covidien Ag | Circuit and method for reducing stored energy in an electrosurgical generator |
US7947039B2 (en) | 2005-12-12 | 2011-05-24 | Covidien Ag | Laparoscopic apparatus for performing electrosurgical procedures |
US7651493B2 (en) | 2006-03-03 | 2010-01-26 | Covidien Ag | System and method for controlling electrosurgical snares |
US8727991B2 (en) | 2011-08-29 | 2014-05-20 | Salutron, Inc. | Probabilistic segmental model for doppler ultrasound heart rate monitoring |
CN110037678B (zh) * | 2019-04-08 | 2024-03-22 | 深圳市贝斯曼精密仪器有限公司 | 一种血流速度检测系统 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3763851A (en) * | 1971-12-08 | 1973-10-09 | Hoffmann La Roche | Ultrasonic doppler fetal heart monitor with variable resonance means |
US3934577A (en) * | 1972-12-08 | 1976-01-27 | Hoffmann-La Roche Inc. | Fetal heart rate monitoring apparatus |
JPS567592B2 (de) * | 1974-10-31 | 1981-02-18 | ||
US4255977A (en) * | 1978-10-30 | 1981-03-17 | Purdue Research Foundation | Double repetition rate doppler flow measurement system |
DE2941668A1 (de) * | 1979-10-15 | 1981-04-23 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 8000 München | Kardiotachometer |
JPS5836528A (ja) * | 1981-08-28 | 1983-03-03 | 株式会社東芝 | 超音波パルスドツプラ血流測定装置 |
JPS5897347A (ja) * | 1981-12-03 | 1983-06-09 | 株式会社東芝 | 超音波診断装置 |
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 |
DE3484586D1 (de) * | 1983-08-24 | 1991-06-20 | Cgr Ultrasonic | Verfahren zum messen von stroemungsparametern eines fliessfaehigen mediums und vorrichtung zur durchfuehrung dieses verfahrens. |
US4612937A (en) * | 1983-11-10 | 1986-09-23 | Siemens Medical Laboratories, Inc. | Ultrasound diagnostic apparatus |
JPS60122549A (ja) * | 1983-12-08 | 1985-07-01 | 株式会社東芝 | 超音波診断装置 |
FR2562675B1 (fr) * | 1984-04-06 | 1989-10-13 | Cgr Ultrasonic | Procede de levee d'ambiguite de la mesure par effet doppler de la vitesse d'un mobile |
JPS61100236A (ja) * | 1984-10-08 | 1986-05-19 | 富士通株式会社 | 相関検出型超音波血流計 |
-
1986
- 1986-05-20 DE DE3689698T patent/DE3689698T2/de not_active Expired - Lifetime
- 1986-05-20 EP EP86303834A patent/EP0202920B1/de not_active Expired - Lifetime
- 1986-05-20 US US06/865,012 patent/US4848355A/en not_active Expired - Lifetime
-
1988
- 1988-10-04 US US07/253,024 patent/US4848356A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US4848355A (en) | 1989-07-18 |
EP0202920A3 (en) | 1989-11-23 |
EP0202920B1 (de) | 1994-03-09 |
EP0202920A2 (de) | 1986-11-26 |
US4848356A (en) | 1989-07-18 |
DE3689698T2 (de) | 1994-07-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |