CA2053115A1 - Blood flow measuring apparatus - Google Patents
Blood flow measuring apparatusInfo
- Publication number
- CA2053115A1 CA2053115A1 CA002053115A CA2053115A CA2053115A1 CA 2053115 A1 CA2053115 A1 CA 2053115A1 CA 002053115 A CA002053115 A CA 002053115A CA 2053115 A CA2053115 A CA 2053115A CA 2053115 A1 CA2053115 A1 CA 2053115A1
- Authority
- CA
- Canada
- Prior art keywords
- electrode
- measuring
- blood flow
- reference electrode
- measuring apparatus
- 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.)
- Abandoned
Links
- 230000017531 blood circulation Effects 0.000 title claims abstract description 54
- 239000000523 sample Substances 0.000 claims abstract description 25
- 230000007935 neutral effect Effects 0.000 claims abstract description 18
- 238000000691 measurement method Methods 0.000 claims description 13
- 238000011156 evaluation Methods 0.000 claims description 12
- 238000005868 electrolysis reaction Methods 0.000 claims description 8
- 238000002955 isolation Methods 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 150000002739 metals Chemical class 0.000 claims description 4
- 238000010790 dilution Methods 0.000 claims description 3
- 239000012895 dilution Substances 0.000 claims description 3
- 230000001939 inductive effect Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 description 27
- 239000008280 blood Substances 0.000 description 21
- 210000004369 blood Anatomy 0.000 description 21
- 238000000034 method Methods 0.000 description 15
- 239000001257 hydrogen Substances 0.000 description 11
- 229910052739 hydrogen Inorganic materials 0.000 description 11
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 10
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 6
- 239000004020 conductor Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 4
- 238000002513 implantation Methods 0.000 description 4
- 210000000056 organ Anatomy 0.000 description 4
- 230000002285 radioactive effect Effects 0.000 description 4
- 238000001356 surgical procedure Methods 0.000 description 4
- 241000282412 Homo Species 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 229940079593 drug Drugs 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052697 platinum Inorganic materials 0.000 description 3
- 239000012857 radioactive material Substances 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 2
- 230000004087 circulation Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000002560 therapeutic procedure Methods 0.000 description 2
- BSYNRYMUTXBXSQ-UHFFFAOYSA-N Aspirin Chemical compound CC(=O)OC1=CC=CC=C1C(O)=O BSYNRYMUTXBXSQ-UHFFFAOYSA-N 0.000 description 1
- ZZZCUOFIHGPKAK-UHFFFAOYSA-N D-erythro-ascorbic acid Natural products OCC1OC(=O)C(O)=C1O ZZZCUOFIHGPKAK-UHFFFAOYSA-N 0.000 description 1
- 150000000996 L-ascorbic acids Chemical class 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 229930003268 Vitamin C Natural products 0.000 description 1
- 238000001467 acupuncture Methods 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000037037 animal physiology Effects 0.000 description 1
- 235000010323 ascorbic acid Nutrition 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000002316 cosmetic surgery Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000002526 effect on cardiovascular system Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical compound [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000037427 ion transport Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002483 medication Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000001959 radiotherapy Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 230000036391 respiratory frequency Effects 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 230000009291 secondary effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000002054 transplantation Methods 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
- 235000019154 vitamin C Nutrition 0.000 description 1
- 239000011718 vitamin C Substances 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue
- A61B5/14542—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue for measuring blood gases
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue
- A61B5/1468—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue using chemical or electrochemical methods, e.g. by polarographic means
- A61B5/1473—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue using chemical or electrochemical methods, e.g. by polarographic means invasive, e.g. introduced into the body by a catheter
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/25—Bioelectric electrodes therefor
- A61B5/276—Protection against electrode failure
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Measuring And Recording Apparatus For Diagnosis (AREA)
- External Artificial Organs (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1277/90A CH681351A5 (enExample) | 1990-04-12 | 1990-04-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2053115A1 true CA2053115A1 (en) | 1993-04-10 |
Family
ID=4206660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002053115A Abandoned CA2053115A1 (en) | 1990-04-12 | 1991-10-09 | Blood flow measuring apparatus |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5267569A (enExample) |
| EP (1) | EP0452276B1 (enExample) |
| AT (1) | ATE126684T1 (enExample) |
| CA (1) | CA2053115A1 (enExample) |
| CH (1) | CH681351A5 (enExample) |
| DE (1) | DE59106283D1 (enExample) |
Families Citing this family (65)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06507815A (ja) * | 1991-09-26 | 1994-09-08 | ベア ハンス | 器官からの出血を測定する医療技術方法及び該方法を実施するための媒体 |
| US5644240A (en) * | 1992-09-30 | 1997-07-01 | Cobe Laboratories, Inc. | Differential conductivity hemodynamic monitor |
| WO1998014225A2 (en) * | 1996-10-04 | 1998-04-09 | United States Surgical Corporation | Circulatory support system |
| US5873837A (en) * | 1997-09-09 | 1999-02-23 | Lieber; Claude P. | System and method for remote measurement of fluid flow |
| US6458086B1 (en) | 2000-04-05 | 2002-10-01 | Kenneth Lawrence Franco | Implantable blood flow monitoring system |
| US6632183B2 (en) * | 2001-02-12 | 2003-10-14 | Thermal Technologies, Inc. | Perfusion sensitive biopsy extractor |
| DE10117627A1 (de) * | 2001-04-07 | 2002-10-17 | Conducta Endress & Hauser | Vorrichtung und Verfahren zum Messen der Konzentration von Ionen in einer Messflüssigkeit |
| US6801041B2 (en) * | 2002-05-14 | 2004-10-05 | Abbott Laboratories | Sensor having electrode for determining the rate of flow of a fluid |
| US8784336B2 (en) | 2005-08-24 | 2014-07-22 | C. R. Bard, Inc. | Stylet apparatuses and methods of manufacture |
| US7794407B2 (en) | 2006-10-23 | 2010-09-14 | Bard Access Systems, Inc. | Method of locating the tip of a central venous catheter |
| US8388546B2 (en) | 2006-10-23 | 2013-03-05 | Bard Access Systems, Inc. | Method of locating the tip of a central venous catheter |
| US20080128265A1 (en) * | 2006-11-30 | 2008-06-05 | Imperial Innovations Limited | Electrode Assembly and System |
| ES2430613T3 (es) | 2007-01-29 | 2013-11-21 | Simon Fraser University | Aparato de neuroestimulación transvascular |
| US8709709B2 (en) | 2007-05-18 | 2014-04-29 | Luoxis Diagnostics, Inc. | Measurement and uses of oxidative status |
| EP2147303B1 (en) * | 2007-05-18 | 2017-03-29 | Aytu BioScience, Inc. | Measurement and uses of oxidative status |
| US9042983B2 (en) * | 2007-10-31 | 2015-05-26 | Medtronic, Inc. | Implantable system for flow measurement including charge amplifier |
| US10524691B2 (en) | 2007-11-26 | 2020-01-07 | C. R. Bard, Inc. | Needle assembly including an aligned magnetic element |
| US8849382B2 (en) | 2007-11-26 | 2014-09-30 | C. R. Bard, Inc. | Apparatus and display methods relating to intravascular placement of a catheter |
| US10751509B2 (en) | 2007-11-26 | 2020-08-25 | C. R. Bard, Inc. | Iconic representations for guidance of an indwelling medical device |
| US9649048B2 (en) | 2007-11-26 | 2017-05-16 | C. R. Bard, Inc. | Systems and methods for breaching a sterile field for intravascular placement of a catheter |
| US9521961B2 (en) | 2007-11-26 | 2016-12-20 | C. R. Bard, Inc. | Systems and methods for guiding a medical instrument |
| US8781555B2 (en) | 2007-11-26 | 2014-07-15 | C. R. Bard, Inc. | System for placement of a catheter including a signal-generating stylet |
| US10449330B2 (en) | 2007-11-26 | 2019-10-22 | C. R. Bard, Inc. | Magnetic element-equipped needle assemblies |
| JP5452500B2 (ja) | 2007-11-26 | 2014-03-26 | シー・アール・バード・インコーポレーテッド | カテーテルの血管内留置のための統合システム |
| US8478382B2 (en) | 2008-02-11 | 2013-07-02 | C. R. Bard, Inc. | Systems and methods for positioning a catheter |
| ES2525525T3 (es) | 2008-08-22 | 2014-12-26 | C.R. Bard, Inc. | Conjunto de catéter que incluye conjuntos de sensor de ECG y magnético |
| US8437833B2 (en) | 2008-10-07 | 2013-05-07 | Bard Access Systems, Inc. | Percutaneous magnetic gastrostomy |
| US9532724B2 (en) | 2009-06-12 | 2017-01-03 | Bard Access Systems, Inc. | Apparatus and method for catheter navigation using endovascular energy mapping |
| US9125578B2 (en) | 2009-06-12 | 2015-09-08 | Bard Access Systems, Inc. | Apparatus and method for catheter navigation and tip location |
| US9339206B2 (en) | 2009-06-12 | 2016-05-17 | Bard Access Systems, Inc. | Adaptor for endovascular electrocardiography |
| US9445734B2 (en) | 2009-06-12 | 2016-09-20 | Bard Access Systems, Inc. | Devices and methods for endovascular electrography |
| EP2482719A4 (en) | 2009-09-29 | 2016-03-09 | Bard Inc C R | STYLETS FOR USE WITH APPARATUS FOR INTRAVASCULAR PLACEMENT OF A CATHETER |
| WO2011044421A1 (en) | 2009-10-08 | 2011-04-14 | C. R. Bard, Inc. | Spacers for use with an ultrasound probe |
| WO2011150376A1 (en) | 2010-05-28 | 2011-12-01 | C.R. Bard, Inc. | Apparatus for use with needle insertion guidance system |
| MX2012013672A (es) | 2010-05-28 | 2013-02-12 | Bard Inc C R | Aparato para utilizar con un sistema de guia de insercion de aguja. |
| CA2806353A1 (en) | 2010-08-09 | 2012-02-16 | C.R. Bard Inc. | Support and cover structures for an ultrasound probe head |
| CN103442632A (zh) | 2010-08-20 | 2013-12-11 | C·R·巴德股份有限公司 | Ecg辅助导管末端放置的再确认 |
| CN103189009B (zh) | 2010-10-29 | 2016-09-07 | C·R·巴德股份有限公司 | 医疗设备的生物阻抗辅助放置 |
| EP2681543B1 (en) | 2011-02-28 | 2017-11-08 | Aytu BioScience, Inc. | Apparatus for measuring oxidation-reduction potential |
| WO2013006817A1 (en) | 2011-07-06 | 2013-01-10 | C.R. Bard, Inc. | Needle length determination and calibration for insertion guidance system |
| USD724745S1 (en) | 2011-08-09 | 2015-03-17 | C. R. Bard, Inc. | Cap for an ultrasound probe |
| USD699359S1 (en) | 2011-08-09 | 2014-02-11 | C. R. Bard, Inc. | Ultrasound probe head |
| US9211107B2 (en) | 2011-11-07 | 2015-12-15 | C. R. Bard, Inc. | Ruggedized ultrasound hydrogel insert |
| FR2984495B1 (fr) * | 2011-12-15 | 2016-04-15 | Valeo Systemes De Controle Moteur | Procede de mesure de la temperature |
| EP3556427B1 (en) | 2012-03-05 | 2022-06-08 | Lungpacer Medical Inc. | Transvascular nerve stimulation apparatus |
| US9372167B2 (en) | 2012-04-19 | 2016-06-21 | Aytu Bioscience, Inc. | Oxidation-reduction potential test device including a multiple layer gel |
| WO2013188833A2 (en) | 2012-06-15 | 2013-12-19 | C.R. Bard, Inc. | Apparatus and methods for detection of a removable cap on an ultrasound probe |
| AU2013280184B2 (en) | 2012-06-21 | 2017-08-24 | Lungpacer Medical Inc. | Transvascular diaphragm pacing systems and methods of use |
| KR20150079550A (ko) | 2012-10-23 | 2015-07-08 | 로익스 다이어그노스틱스, 아이엔씨. | 생물학적 시료의 산화-환원 전위의 측정 및 사용하는 방법 및 시스템 |
| CN110975145B (zh) | 2013-11-22 | 2024-08-23 | 隆佩瑟尔医疗公司 | 用于通过经血管神经刺激辅助呼吸的装置和方法 |
| CN105916549B (zh) | 2014-01-21 | 2019-04-23 | 隆佩瑟尔医疗公司 | 用于优化多电极神经起搏的系统及相关方法 |
| EP3073910B1 (en) | 2014-02-06 | 2020-07-15 | C.R. Bard, Inc. | Systems for guidance and placement of an intravascular device |
| US10973584B2 (en) | 2015-01-19 | 2021-04-13 | Bard Access Systems, Inc. | Device and method for vascular access |
| US10349890B2 (en) | 2015-06-26 | 2019-07-16 | C. R. Bard, Inc. | Connector interface for ECG-based catheter positioning system |
| US11000207B2 (en) | 2016-01-29 | 2021-05-11 | C. R. Bard, Inc. | Multiple coil system for tracking a medical device |
| US10293164B2 (en) | 2017-05-26 | 2019-05-21 | Lungpacer Medical Inc. | Apparatus and methods for assisted breathing by transvascular nerve stimulation |
| EP3645107B1 (en) | 2017-06-30 | 2022-08-31 | Lungpacer Medical Inc. | Systems for prevention, moderation, and/or treatment of cognitive injury |
| US10195429B1 (en) | 2017-08-02 | 2019-02-05 | Lungpacer Medical Inc. | Systems and methods for intravascular catheter positioning and/or nerve stimulation |
| US10940308B2 (en) | 2017-08-04 | 2021-03-09 | Lungpacer Medical Inc. | Systems and methods for trans-esophageal sympathetic ganglion recruitment |
| US20190175908A1 (en) | 2017-12-11 | 2019-06-13 | Lungpacer Medical Inc. | Systems and methods for strengthening a respiratory muscle |
| CN112867443B (zh) | 2018-10-16 | 2024-04-26 | 巴德阿克塞斯系统股份有限公司 | 用于建立电连接的安全装备连接系统及其方法 |
| WO2020097331A1 (en) | 2018-11-08 | 2020-05-14 | Lungpacer Medical Inc. | Stimulation systems and related user interfaces |
| JP7677631B2 (ja) | 2019-05-16 | 2025-05-15 | ラングペーサー メディカル インコーポレイテッド | 検知及び刺激のためのシステム及び方法 |
| JP7550461B2 (ja) | 2019-06-12 | 2024-09-13 | ラングペーサー メディカル インコーポレイテッド | 医療刺激システムのための回路 |
| KR102353059B1 (ko) * | 2020-04-13 | 2022-01-20 | 주식회사 아이센스 | 생체정보의 측정장치 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3330358A1 (de) * | 1983-08-23 | 1985-03-14 | Walter 2000 Hamburg Nicolai | Redoxpotential-messgeraet |
| US4951682A (en) * | 1988-06-22 | 1990-08-28 | The Cleveland Clinic Foundation | Continuous cardiac output by impedance measurements in the heart |
| US5121750A (en) * | 1990-03-02 | 1992-06-16 | Katims Jefferson J | Apparatus for locating a catheter adjacent to a pacemaker node of the heart |
| US5081990A (en) * | 1990-05-11 | 1992-01-21 | New York University | Catheter for spinal epidural injection of drugs and measurement of evoked potentials |
| US5092339A (en) * | 1990-07-23 | 1992-03-03 | Geddes Leslie A | Method and apparatus for electrically compensated measurement of cardiac output |
-
1990
- 1990-04-12 CH CH1277/90A patent/CH681351A5/de not_active IP Right Cessation
-
1991
- 1991-04-10 AT AT91810264T patent/ATE126684T1/de active
- 1991-04-10 DE DE59106283T patent/DE59106283D1/de not_active Expired - Fee Related
- 1991-04-10 EP EP91810264A patent/EP0452276B1/de not_active Expired - Lifetime
- 1991-09-27 US US07/766,274 patent/US5267569A/en not_active Expired - Fee Related
- 1991-10-09 CA CA002053115A patent/CA2053115A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| EP0452276B1 (de) | 1995-08-23 |
| EP0452276A1 (de) | 1991-10-16 |
| DE59106283D1 (de) | 1995-09-28 |
| ATE126684T1 (de) | 1995-09-15 |
| CH681351A5 (enExample) | 1993-03-15 |
| US5267569A (en) | 1993-12-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5267569A (en) | Blood flow measuring apparatus | |
| Baumann et al. | The electrical conductivity of human cerebrospinal fluid at body temperature | |
| EP0553187B1 (en) | A device for measurement of electrical impedance of organic and biological materials | |
| Henderson et al. | An impedance camera for spatially specific measurements of the thorax | |
| KR100472736B1 (ko) | 비침입식 혈액성분 측정 장치 | |
| Bu et al. | Peripheral nerve magnetoneurography with optically pumped magnetometers | |
| CA2096836A1 (en) | Medico-technical process and means for measuring blood irrigation of organs | |
| AU5424601A (en) | Multi-electrode catheter, system and method | |
| EP1658809A1 (en) | Measuring device and measuring method | |
| Shishvan et al. | ACT5 electrical impedance tomography system | |
| Ouypornkochagorn et al. | High-precision electrical impedance tomography system using package excitation | |
| Oh et al. | A novel method for recording neuronal depolarization with recording at 125–825 Hz: implications for imaging fast neural activity in the brain with electrical impedance tomography | |
| AU2002312721B2 (en) | Method and device for detecting functional and metabolic data of a living organism | |
| Yang et al. | A DSP-based EIT system with adaptive boundary voltage acquisition | |
| DE4215901A1 (de) | Katheter mit einem lokalisierbaren endbereich und verwendung desselben | |
| CN112089418B (zh) | 基于人体组织电导率变频调幅法的胸腔电阻抗检测方法 | |
| Lozano et al. | Two-frequency impedance plethysmograph: real and imaginary parts | |
| Frączek et al. | Measurements of electrical impedance of biomedical objects | |
| Mosquera et al. | Implementation of a low cost prototype for electrical impedance tomography based on the integrated circuit for body composition measurement AFE4300 | |
| Boucsein | Methods of electrodermal recording | |
| GB2530355A (en) | Electric impedance tomographic device | |
| US3604411A (en) | Electroencephalograph having meter probe movable in a calvarium-shaped liquid filled tank and method of use | |
| Jossinet et al. | Imaging the complex impedance in electrical impedance tomography | |
| WO2012114219A1 (en) | Catheter, assembly including same and method of placement thereof | |
| Miao et al. | A new symmetric semi-parallel Electrical Impedance Tomography (EIT) system-II: The performance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |