These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Catheter tip pH electrodes for continuous intravascular recording.
    Author: Cobbe SM, Poole-Wilson PA.
    Journal: J Med Eng Technol; 1980 May; 4(3):122-4. PubMed ID: 7401161.
    Abstract:
    A small, flexible catheter-tip pH electrode has been developed for continuous measurement of intravascular pH in man and animals. The electrode utilises a pH sensitive polymer membrane rather than pH glass. The electrode passes through the lumen of a conventional cardiac catheter, by which it may be introduced to any desired site in the circulation. The electrode has no cross-sensitivity to other ions, to osmolality or oxygen tension. It is insensitive to flow and pressure. The response time is less than 300 ms, and the mean drift in vivo is 0.01 pH units/h. Continuous recordings of intravascular pH in animals have been made for up to 7h. The electrodes can be sterilised, and have been used in man.
    [Abstract] [Full Text] [Related] [New Search]