GB2194641A - Continuous lossless monitoring of neonatal blood characteristics - Google Patents

Continuous lossless monitoring of neonatal blood characteristics

Info

Publication number
GB2194641A
GB2194641A GB08724713A GB8724713A GB2194641A GB 2194641 A GB2194641 A GB 2194641A GB 08724713 A GB08724713 A GB 08724713A GB 8724713 A GB8724713 A GB 8724713A GB 2194641 A GB2194641 A GB 2194641A
Authority
GB
United Kingdom
Prior art keywords
blood
catheters
monitored
patient
sensors
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.)
Granted
Application number
GB08724713A
Other versions
GB8724713D0 (en
GB2194641B (en
Inventor
Nancy J Hemmert
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.)
AFFILIATED INNOVAT MANAG Inc
Affiliated Innovation Management Inc
Original Assignee
AFFILIATED INNOVAT MANAG Inc
Affiliated Innovation Management 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 AFFILIATED INNOVAT MANAG Inc, Affiliated Innovation Management Inc filed Critical AFFILIATED INNOVAT MANAG Inc
Publication of GB8724713D0 publication Critical patent/GB8724713D0/en
Publication of GB2194641A publication Critical patent/GB2194641A/en
Application granted granted Critical
Publication of GB2194641B publication Critical patent/GB2194641B/en
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
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150015—Source of blood
    • A61B5/15003—Source of blood for venous or arterial blood
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150206—Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
    • A61B5/150221—Valves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150946—Means for varying, regulating, indicating or limiting the speed or time of blood collection
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/155—Devices specially adapted for continuous or multiple sampling, e.g. at predetermined intervals
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150992—Blood sampling from a fluid line external to a patient, such as a catheter line, combined with an infusion line; blood sampling from indwelling needle sets, e.g. sealable ports, luer couplings, valves

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Biophysics (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Veterinary Medicine (AREA)
  • Pathology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Hematology (AREA)
  • Optics & Photonics (AREA)
  • Manufacturing & Machinery (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

The blood is withdrawn from the patient, then is passed continuously in sensory relationship past sensors (35, 35', 35'', 38) for the characteristics to be monitored, and then is returned to the patient's cardiovascular system, in a lossless one-way flow path. Blood withdrawal and return through catheters (21, 27) preferably indwelling in respective arterial and venous vessels (20A, 20B), as in a neonate's umbilicus (20), enable real-time monitoring of the selected characteristics. The intermediate blood-transport passage (25, 25', 25'') constitutes also a semi-permeable membrane juxtaposable to the sensors for use and readily disposable, as are the catheters, after use to assure positive isolation of the blood of separate patients. Gases, charge carriers, and radiation can pass through the membrane as indicators of the characteristics being monitored.
GB8724713A 1986-02-24 1987-02-23 Monitoring of blood characteristics Expired - Fee Related GB2194641B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US83231986A 1986-02-24 1986-02-24
PCT/US1987/000426 WO1987004914A1 (en) 1986-02-24 1987-02-23 Continuous lossless monitoring of neonatal blood characterisctics

Publications (3)

Publication Number Publication Date
GB8724713D0 GB8724713D0 (en) 1987-11-25
GB2194641A true GB2194641A (en) 1988-03-09
GB2194641B GB2194641B (en) 1990-10-17

Family

ID=25261321

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8724713A Expired - Fee Related GB2194641B (en) 1986-02-24 1987-02-23 Monitoring of blood characteristics

Country Status (3)

Country Link
AU (1) AU7129287A (en)
GB (1) GB2194641B (en)
WO (1) WO1987004914A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1324067C (en) * 1987-11-17 1993-11-09 Glenn W. Pelikan Apparatus and method for blood chemistry analysis
US5958782A (en) * 1993-10-21 1999-09-28 Minnesota Mining And Manufacturing Company Cation-sensing composite structure and compounds for use therein
US5997818A (en) * 1997-02-27 1999-12-07 Minnesota Mining And Manufacturing Company Cassette for tonometric calibration
US6009339A (en) 1997-02-27 1999-12-28 Terumo Cardiovascular Systems Corporation Blood parameter measurement device
ATE306844T1 (en) * 1997-02-27 2005-11-15 Terumo Cardiovascular Sys CASSETTE FOR MEASURING BLOOD PARAMETERS
WO2007052255A2 (en) * 2005-11-02 2007-05-10 Mark Fenster A system and method for external continuous blood content measurement and injection of pharmaceuticals
US20180000394A1 (en) * 2016-06-30 2018-01-04 Fresenius Medical Care Holdings, Inc. Method and system for creating a diagnostic vascular window

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1803864A1 (en) * 1967-10-20 1969-08-07 Beckman Instruments Inc Method and device for carrying out potentiometric measurements in vivo
FR2313676A1 (en) * 1975-06-04 1976-12-31 Draegerwerk Ag BLOOD ANALYSIS METHOD AND APPARATUS
US4127111A (en) * 1976-10-26 1978-11-28 Drolet Roland A Automatic blood sampling system and method
EP0118281A2 (en) * 1983-03-04 1984-09-12 Children's Hospital Medical Center Improvements in and relating to a method of detecting a certain gas in an animal

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1602520A (en) * 1978-04-05 1981-11-11 Sira Institute Method and apparatus for analysing blood
GB8512796D0 (en) * 1985-05-21 1985-06-26 Bellhouse Brian John Testing liquids

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1803864A1 (en) * 1967-10-20 1969-08-07 Beckman Instruments Inc Method and device for carrying out potentiometric measurements in vivo
FR2313676A1 (en) * 1975-06-04 1976-12-31 Draegerwerk Ag BLOOD ANALYSIS METHOD AND APPARATUS
US4127111A (en) * 1976-10-26 1978-11-28 Drolet Roland A Automatic blood sampling system and method
EP0118281A2 (en) * 1983-03-04 1984-09-12 Children's Hospital Medical Center Improvements in and relating to a method of detecting a certain gas in an animal

Also Published As

Publication number Publication date
GB8724713D0 (en) 1987-11-25
WO1987004914A1 (en) 1987-08-27
AU7129287A (en) 1987-09-09
GB2194641B (en) 1990-10-17

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee