5 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.

The invention relates to a device (100) and system for positive pressure ventilation (PPV) and continuous positive airway pressure (CPAP) therapy, the device comprising: a fresh gas flow inlet (2) arranged to receive a fresh gas flow from a fresh gas flow tube (22) connectable thereto; a patient interface end (3) arranged to connect with a patient interface; an outlet (4) having an open end (5); a variable flow CPAP generator (6) comprising a first, second and third connection portion (10, 11, 12), wherein the first connection portion is connected with the fresh gas flow inlet, the second connection portion is connected with the patient interface end, and the third connection portion is connected with the outlet, wherein the generated CPAP level is adjusted by varying the fresh gas flow to the variable flow CPAP generator. The device further comprises an internal leak channel (9) arranged to extend between the fresh gas flow inlet and at least one of the patient interface end and the outlet, so as to create an internal fresh gas leak flow therebetween, bypassing the first connection portion of the variable flow CPAP generator, which internal fresh gas leak flow is added to the fresh gas flow provided by the variable flow CPAP generator in PPV mode. A simplified device and system, respectively, are provided which are easy to use and allow for quick switching between PPV and CPAP therapy without the need to change equipment.

This invention relates to a device (100) for positive pressure ventilation (PPV) and continuous positive airway pressure (CPAP) therapy, comprising: a fresh gas inlet (2) arranged to receive a fresh gas flow from a fresh gas flow tube connectable thereto; a patient interface end (3) connectable to a patient interface; an outlet (4) having an open end (5); and a plurality of variable flow CPAP generators (6), each of which is connected to the fresh gas inlet, the patient interface end, and the outlet of the device. Simplified devices and systems are provided respectively, which are easy to use and allow for rapid switching between PPV and CPAP therapy without altering the equipment.

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.