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
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- 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
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- 238000002513 implantation Methods 0.000 description 4
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- 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
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- 229910052697 platinum Inorganic materials 0.000 description 3
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- 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
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- 238000001467 acupuncture Methods 0.000 description 1
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- 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
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- 238000002316 cosmetic surgery Methods 0.000 description 1
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- 230000002526 effect on cardiovascular system Effects 0.000 description 1
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- 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
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- 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
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- 239000011347 resin Substances 0.000 description 1
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- 210000002700 urine Anatomy 0.000 description 1
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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)
- External Artificial Organs (AREA)
- Measuring And Recording Apparatus For Diagnosis (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1277/90A CH681351A5 (OSRAM) | 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 (OSRAM) |
| EP (1) | EP0452276B1 (OSRAM) |
| AT (1) | ATE126684T1 (OSRAM) |
| CA (1) | CA2053115A1 (OSRAM) |
| CH (1) | CH681351A5 (OSRAM) |
| DE (1) | DE59106283D1 (OSRAM) |
Families Citing this family (65)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993005700A1 (de) * | 1991-09-26 | 1993-04-01 | Baer Hans | Medizintechnisches verfahren zur messung der durchblutung eines organs und mittel dazu |
| US5644240A (en) * | 1992-09-30 | 1997-07-01 | Cobe Laboratories, Inc. | Differential conductivity hemodynamic monitor |
| EP0951302B8 (en) * | 1996-10-04 | 2006-04-19 | 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 |
| US8388546B2 (en) | 2006-10-23 | 2013-03-05 | Bard Access Systems, Inc. | Method of locating the tip of a central venous catheter |
| US7794407B2 (en) | 2006-10-23 | 2010-09-14 | 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 |
| CA2676119C (en) | 2007-01-29 | 2021-01-19 | Simon Fraser University | Transvascular nerve stimulation apparatus and methods |
| US8709709B2 (en) | 2007-05-18 | 2014-04-29 | Luoxis Diagnostics, Inc. | Measurement and uses of oxidative status |
| US9063070B2 (en) * | 2007-05-18 | 2015-06-23 | Luoxis Diagnostics, 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 |
| 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 |
| US8781555B2 (en) | 2007-11-26 | 2014-07-15 | C. R. Bard, Inc. | System for placement of a catheter including a signal-generating stylet |
| US9521961B2 (en) | 2007-11-26 | 2016-12-20 | C. R. Bard, Inc. | Systems and methods for guiding a medical instrument |
| US10449330B2 (en) | 2007-11-26 | 2019-10-22 | C. R. Bard, Inc. | Magnetic element-equipped needle assemblies |
| US10751509B2 (en) | 2007-11-26 | 2020-08-25 | C. R. Bard, Inc. | Iconic representations for guidance of an indwelling medical device |
| US10524691B2 (en) | 2007-11-26 | 2020-01-07 | C. R. Bard, Inc. | Needle assembly including an aligned magnetic element |
| WO2009070616A2 (en) | 2007-11-26 | 2009-06-04 | C. R. Bard, Inc. | Integrated system for intravascular placement of a catheter |
| US8849382B2 (en) | 2007-11-26 | 2014-09-30 | C. R. Bard, Inc. | Apparatus and display methods relating to intravascular placement of a catheter |
| US9456766B2 (en) | 2007-11-26 | 2016-10-04 | C. R. Bard, Inc. | Apparatus for use with needle insertion guidance system |
| US9636031B2 (en) | 2007-11-26 | 2017-05-02 | C.R. Bard, Inc. | Stylets for use with apparatus for intravascular placement of a catheter |
| US8478382B2 (en) | 2008-02-11 | 2013-07-02 | C. R. Bard, Inc. | Systems and methods for positioning a catheter |
| WO2010022370A1 (en) | 2008-08-22 | 2010-02-25 | C.R. Bard, Inc. | Catheter assembly including ecg sensor and magnetic assemblies |
| US8437833B2 (en) | 2008-10-07 | 2013-05-07 | Bard Access Systems, Inc. | Percutaneous magnetic gastrostomy |
| WO2010144922A1 (en) | 2009-06-12 | 2010-12-16 | Romedex International Srl | Catheter tip positioning method |
| US9532724B2 (en) | 2009-06-12 | 2017-01-03 | Bard Access Systems, Inc. | Apparatus and method for catheter navigation using endovascular energy mapping |
| EP2464407A4 (en) | 2009-08-10 | 2014-04-02 | Bard Access Systems Inc | DEVICES AND METHODS FOR ENDOVASCULAR ELECTROGRAPHY |
| US11103213B2 (en) | 2009-10-08 | 2021-08-31 | C. R. Bard, Inc. | Spacers for use with an ultrasound probe |
| ES2811107T3 (es) | 2010-02-02 | 2021-03-10 | Bard Inc C R | Aparato y método para conducción de catéter y localización de punta |
| ES2863568T3 (es) | 2010-05-28 | 2021-10-11 | Bard Inc C R | Aparato para su uso con sistema de guiado de inserción de aguja |
| AU2011289513B2 (en) | 2010-08-09 | 2014-05-29 | C.R. Bard, Inc. | Support and cover structures for an ultrasound probe head |
| JP5845260B2 (ja) | 2010-08-20 | 2016-01-20 | シー・アール・バード・インコーポレーテッドＣ Ｒ Ｂａｒｄ Ｉｎｃｏｒｐｏｒａｔｅｄ | Ｅｃｇ支援カテーテル先端配置の再確認 |
| WO2012058461A1 (en) | 2010-10-29 | 2012-05-03 | C.R.Bard, Inc. | Bioimpedance-assisted placement of a medical device |
| EP2681543B1 (en) | 2011-02-28 | 2017-11-08 | Aytu BioScience, Inc. | Apparatus for measuring oxidation-reduction potential |
| BR112013030348A2 (pt) | 2011-07-06 | 2017-08-01 | Bard Inc C R | método para determinação de um comprimento de um componente médico para uso com um sistema de aquisição de imagem por ultrassom incluindo uma sonda; método para determinação de um comprimento de uma agulha por um sistema de orientação de agulha; e sistema de determinação de comprimento de agulha para um dispositivo de aquisição de imagem por ultrassom incluindo uma sonda de ultrassom |
| 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 |
| WO2013070775A1 (en) | 2011-11-07 | 2013-05-16 | 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 |
| AU2013230648B2 (en) | 2012-03-05 | 2017-06-15 | Lungpacer Medical Inc. | Transvascular nerve stimulation apparatus and methods |
| EA201491808A1 (ru) | 2012-04-19 | 2015-03-31 | Луоксис Дайэгностикс, Инк. | Многослойный гель |
| CN104837413B (zh) | 2012-06-15 | 2018-09-11 | C·R·巴德股份有限公司 | 检测超声探测器上可移除帽的装置及方法 |
| CA3161433A1 (en) | 2012-06-21 | 2023-01-27 | Lungpacer Medical Inc. | Transvascular diaphragm pacing systems and methods of use |
| US9360446B2 (en) | 2012-10-23 | 2016-06-07 | Aytu Bioscience, Inc. | Methods and systems for measuring and using the oxidation-reduction potential of a biological sample |
| EP3071285B1 (en) | 2013-11-22 | 2020-06-03 | Lungpacer Medical Inc. | Apparatus for assisted breathing by transvascular nerve stimulation |
| EP3096835B1 (en) | 2014-01-21 | 2019-08-07 | Lungpacer Medical Inc. | Systems for optimization of multi-electrode nerve pacing |
| 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 |
| WO2016210325A1 (en) | 2015-06-26 | 2016-12-29 | 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 |
| EP3852622B1 (en) | 2018-10-16 | 2025-04-02 | Bard Access Systems, Inc. | Safety-equipped connection systems and methods thereof for establishing electrical connections |
| WO2020097331A1 (en) | 2018-11-08 | 2020-05-14 | Lungpacer Medical Inc. | Stimulation systems and related user interfaces |
| EP3968932B1 (en) | 2019-05-16 | 2025-07-02 | Lungpacer Medical Inc. | Systems for sensing and stimulation |
| WO2020252037A1 (en) | 2019-06-12 | 2020-12-17 | Lungpacer Medical Inc. | Circuitry for medical stimulation systems |
| 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 EP EP91810264A patent/EP0452276B1/de not_active Expired - Lifetime
- 1991-04-10 AT AT91810264T patent/ATE126684T1/de active
- 1991-04-10 DE DE59106283T patent/DE59106283D1/de not_active Expired - Fee Related
- 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 |
|---|---|
| DE59106283D1 (de) | 1995-09-28 |
| EP0452276A1 (de) | 1991-10-16 |
| CH681351A5 (OSRAM) | 1993-03-15 |
| ATE126684T1 (de) | 1995-09-15 |
| US5267569A (en) | 1993-12-07 |
| EP0452276B1 (de) | 1995-08-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |