Surgery – Truss – Pad
Patent
1990-09-10
1992-11-03
Cohen, Lee S.
Surgery
Truss
Pad
422 84, A61B 508
Patent
active
051599341
ABSTRACT:
This invention relates to sensors for Capnometry or Capnography applications wherein measurement is made on the mainstream of the patients breathing tube gases. Provision is made for sampling the respired gases and periodically stopping them off from the sensing mechanism while introducing instead, gases of known concentrations into the sensing cell for calibrating purposes. Several methods are described for activating the valving mechanism included in the miniature sensor. In principle this invention overcomes the time delay and complexity inherent in side-stream Capnometry/Capnography where rapid, up-to-date readings of CO.sub.2 concentration in the patients air stream are delayed due to the length of the sampling tube to the measuring instrument by reversing the process and carrying calibration gases which need not change rapidly to the main-stream sensor where they can be periodically sampled and thus not impairing the higher speed response possible with main-stream sensing systems.
REFERENCES:
patent: 4648396 (1987-03-01), Raemer
patent: 4649027 (1987-03-01), Talbot
patent: 4707336 (1987-11-01), Jones
patent: 4914720 (1990-04-01), Knodle et al.
patent: 4955946 (1990-09-01), Mount et al.
patent: 4958075 (1990-09-01), Mace et al.
patent: 5022406 (1991-06-01), Tomlinson
Cohen Lee S.
Pfaffle K. M.
LandOfFree
Miniature sensor for mainstream capnometry/capnography instrumen does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Miniature sensor for mainstream capnometry/capnography instrumen, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Miniature sensor for mainstream capnometry/capnography instrumen will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2044615