Pflügers Archiv

, Volume 426, Issue 3–4, pp 348–350

A novel, remote-controlled suspension device for brain tissue PO2 measurements with multiwire surface electrodes

  • R. Murr
  • S. Berger
  • L. Schürer
  • K. Peter
  • A. Baethmann
Instruments and Techniques Heart, Circulation, Respiration and Blood; Environmental and Exercise Physiology

DOI: 10.1007/BF00374792

Cite this article as:
Murr, R., Berger, S., Schürer, L. et al. Pflügers Arch. (1994) 426: 348. doi:10.1007/BF00374792

Abstract

A new device was developed for rapid assessment of PO2 values in viable tissue, such as the brain, using a multiwire surface electrode. The instrument utilizes a phonograph-like construction with weightless suspension of the electrode which thus minimizes surface pressure and allows for compensation of brain movements. The new and original component of the present device is the motor-driven, servo-controlled rotation of the PO2 electrode around its vertical axis. This enables PO2 measurements from precisely defined locations. From values measured on rabbit brain surface a PO2 histogram was constructed. The mean PO2 and distribution histogram were similar to those obtained with a needle electrode. The novel device, therefore, enables accurate and fast tissue PO2 measurements with minimal risk of brain damage.

Key words

Brain oxygen tension PO2 histogram Biomedical technology 

Copyright information

© Springer-Verlag 1994

Authors and Affiliations

  • R. Murr
    • 1
  • S. Berger
    • 2
  • L. Schürer
    • 3
  • K. Peter
    • 1
  • A. Baethmann
    • 2
  1. 1.Klinikum GroßhadernInstitute of AnaesthesiologyMunichGermany
  2. 2.Klinikum GroßhadernInstitute for Surgical ResearchMunichGermany
  3. 3.Dept. of NeurosurgeryKlinikum GroßhadernMunichGermany

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