Patent · US Active

System and method of predicting CO2 breakthrough and absorbent replacement

US9504797B2 · kind B2 · utility

1Cited by
3References
18Claims
0Family size

Assignee

Inventor

Key dates

Filing dateDec 31, 2013
Grant dateNov 29, 2016
Priority date—
Expiry dateOct 31, 2034

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02C20/40
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

The system and method of the present application predicts if there is sufficient CO2 absorbent capacity for the next anesthesia case. If insufficient, the canister can be preemptively replaced when no patient is connected to the breathing system. Such prediction also allows clinicians to determine if the CO2 canister has to be changed during the present case or to wait until the end of the case. In the latter, the clinician may buy time by increasing the fresh gas flow rate to reduce the amount of patient CO2 gases recirculated. A predictive estimation of CO2 breakthrough allows more time to prepare for an orderly CO2 canister replacement during a quiet period in the anesthesia care.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.