DE68915512D1 - Methoden und Gerät zur Messung der Konzentration einer Gaskomponente im ausgeatmeten Gas. - Google Patents

Methoden und Gerät zur Messung der Konzentration einer Gaskomponente im ausgeatmeten Gas.

Info

Publication number
DE68915512D1
DE68915512D1 DE68915512T DE68915512T DE68915512D1 DE 68915512 D1 DE68915512 D1 DE 68915512D1 DE 68915512 T DE68915512 T DE 68915512T DE 68915512 T DE68915512 T DE 68915512T DE 68915512 D1 DE68915512 D1 DE 68915512D1
Authority
DE
Germany
Prior art keywords
gas
concentration
measuring
methods
exhaled
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
DE68915512T
Other languages
English (en)
Other versions
DE68915512T2 (de
Inventor
Walter W Lindstrom
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.)
Philips Nuclear Medicine Inc
Original Assignee
Picker International Inc
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 Picker International Inc filed Critical Picker International Inc
Publication of DE68915512D1 publication Critical patent/DE68915512D1/de
Application granted granted Critical
Publication of DE68915512T2 publication Critical patent/DE68915512T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • A61B6/03—Computed tomography [CT]
    • A61B6/032—Transmission computed tomography [CT]
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/026—Measuring blood flow
    • A61B5/0275—Measuring blood flow using tracers, e.g. dye dilution
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
    • A61B5/0813—Measurement of pulmonary parameters by tracers, e.g. radioactive tracers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/48—Diagnostic techniques
    • A61B6/481—Diagnostic techniques involving the use of contrast agents
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/50—Image enhancement or restoration using two or more images, e.g. averaging or subtraction
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/50—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications
    • A61B6/507—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications for determination of haemodynamic parameters, e.g. perfusion CT

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Physics & Mathematics (AREA)
  • Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Public Health (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Pulmonology (AREA)
  • Optics & Photonics (AREA)
  • Theoretical Computer Science (AREA)
  • Physiology (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • General Physics & Mathematics (AREA)
  • Hematology (AREA)
  • Cardiology (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
DE68915512T 1988-11-23 1989-10-30 Methoden und Gerät zur Messung der Konzentration einer Gaskomponente im ausgeatmeten Gas. Expired - Fee Related DE68915512T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/275,784 US5140981A (en) 1986-11-24 1988-11-23 End-tidal gas detection

Publications (2)

Publication Number Publication Date
DE68915512D1 true DE68915512D1 (de) 1994-06-30
DE68915512T2 DE68915512T2 (de) 1994-09-08

Family

ID=23053784

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68915512T Expired - Fee Related DE68915512T2 (de) 1988-11-23 1989-10-30 Methoden und Gerät zur Messung der Konzentration einer Gaskomponente im ausgeatmeten Gas.

Country Status (4)

Country Link
US (1) US5140981A (de)
EP (1) EP0370637B1 (de)
JP (1) JP2802655B2 (de)
DE (1) DE68915512T2 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5046018A (en) * 1989-09-11 1991-09-03 Nellcor, Inc. Agent gas analyzer and method of use
SE9302477L (sv) * 1993-07-22 1995-01-23 Siemens Elema Ab Apparat för tillförsel av andningsgas
US5533512A (en) * 1994-03-18 1996-07-09 Ohmeda Inc. Method and apparatus for detection of venous air emboli
DE19545598A1 (de) * 1995-12-06 1997-06-26 Messer Griesheim Gmbh Analytische Konfiguration zur Überwachung von Xenon-haltigem Narkosegas
DE19709704C2 (de) 1997-03-10 1999-11-04 Michael Georgieff Verwendung einer flüssigen Präparation von Xenon zur intravenösen Verabreichung bei Einleitung und/oder Aufrechterhaltung der Anaesthesie
US6076005A (en) * 1998-02-25 2000-06-13 St. Jude Children's Research Hospital Respiration responsive gating means and apparatus and methods using the same
WO2005006988A1 (en) 2003-06-19 2005-01-27 Everest Biomedical Instruments Breath end-tidal gas monitor
JP5351583B2 (ja) * 2009-03-30 2013-11-27 日本光電工業株式会社 呼吸波形解析装置
US8608657B2 (en) * 2011-05-31 2013-12-17 Covidien Lp Clinical acceptance tool
EP3038530B1 (de) * 2013-08-30 2020-03-25 Capnia, Inc. System und verfahren für neonatale kohlendioxidmessung

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3890959A (en) * 1971-03-22 1975-06-24 Univ New York Method for determining discrete localized blood flow in a large volume of tissue
JPH0622495B2 (ja) * 1984-06-20 1994-03-30 株式会社東芝 局所脳血流測定用ｃｔ装置
US4535780A (en) * 1984-11-07 1985-08-20 General Electric Company Apparatus for measuring xenon concentration in xenon cerebral blood-flow studies
US4622976A (en) * 1985-04-15 1986-11-18 Enhancer R & D Method and apparatus for conducting xenon inhalation studies
US4793357A (en) * 1986-11-24 1988-12-27 Picker International, Inc. CT blood flow mapping with xenon gas enhancement
US4779621A (en) * 1987-02-19 1988-10-25 Picker International, Inc. Xenon calibration phantom

Also Published As

Publication number Publication date
US5140981A (en) 1992-08-25
EP0370637B1 (de) 1994-05-25
JP2802655B2 (ja) 1998-09-24
JPH02184757A (ja) 1990-07-19
EP0370637A1 (de) 1990-05-30
DE68915512T2 (de) 1994-09-08

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Free format text: PATENTANWAELTE REICHEL UND REICHEL, 60322 FRANKFURT

8327 Change in the person/name/address of the patent owner

Owner name: PHILIPS MEDICAL SYSTEMS (CLEVELAND), INC., CLEVELA

8339 Ceased/non-payment of the annual fee