3 results about "Fresh gas flow" patented technology

The invention relates to the technical field of medical equipment, in particular to an anaesthesia machine anesthetic consumption monitoring method and an anaesthesia machine, the flow monitoring reference accuracy is ensured through initialization calibration, and the anesthetic consumption is monitored by automatically identifying the anesthetic type and introducing the corresponding volatilization efficiency coefficient. Calculation deviation caused by difference of physicochemical characteristics of different medicines is overcome, and then the problems of low efficiency, personal errors, poor adaptability and the like existing in a traditional manual recording and simple electronic metering mode are solved by combining real-time collected fresh gas flow and set concentration. And finally, the accuracy and the reliability of the anesthetic consumption monitoring result are improved. The technical problem that in the prior art, anesthetic consumption monitoring is low in accuracy and reliability is solved.

A ventilated heating device (1) for heating an air flow (LS), comprising: an air guide system (2) comprising at least one air inlet (3) and an air outlet (4) arranged downstream in a preset flow direction of the air flow (LS); and at least one catalytic unit (5) for the flameless combustion of hydrogen, which catalytic unit (5) is arranged in the air guide system (2) and is located between the air inlet (3) and the air outlet (4), through which catalytic unit (5) at least part of the gas flow (LS) can flow and is heated as a hot gas flow (WLS). The air guide system (2) further comprises a converging section (6) arranged downstream of the catalytic unit (5) in the flow direction, in which converging section (6) the hot gas flow (WLS) from the catalytic unit (5) can converge with the fresh gas flow (FLS). The invention also relates to a method of operating a ventilated heating device (1).

This invention discloses an anesthesia machine device with integrated monitoring functions and its usage method. The device includes: an anesthesia machine body for delivering a mixed gas; a multi-parameter physiological monitoring module for real-time monitoring of at least two parameters among the patient's bispectral index (BPI), end-tidal carbon dioxide partial pressure, blood oxygen saturation, and invasive arterial blood pressure; a central control module communicatively connected to the aforementioned modules, configured to receive and process monitoring data, analyze it based on preset targets, and generate closed-loop control commands for automatically adjusting the fresh gas flow rate, vaporizer concentration, and / or minute ventilation of the anesthesia machine; and an integrated display and interactive interface for centralized display and interaction. This invention, through multi-parameter fusion and intelligent decision-making, achieves precise closed-loop regulation of anesthesia depth and safe interlocking of vital signs, improving the automation, precision, and safety level of anesthesia management.