6 results about "Manual ventilation" patented technology

The invention discloses a switching mechanism and an anaesthesia machine. The switching mechanism comprises a supporting frame rotating piece and a switching valve, the switching valve comprises a valve seat and a valve element, and the supporting frame and the valve seat are both suitable for being installed on a main body of the anesthesia machine; a valve cavity is formed in the valve seat, the valve seat is further provided with a first air channel, a second air channel and a third air channel which are arranged at intervals, and the first air channel, the second air channel and the third air channel all communicate with the valve cavity. The rotating piece is rotationally connected to the supporting frame and drives the valve element to be switched from the first position to the second position, and when the valve element is located at the first position, the valve element can temporarily block the second air channel; when the rotating piece drives the valve element to be switched from the first position to the second position, the valve element can relieve blocking of the second air channel and temporarily block the third air channel. The valve element is driven by the rotating piece to be switched between the two positions in the valve seat, convenient switching between mechanical control ventilation and manual ventilation is achieved, and the manufacturing cost of the anesthesia machine is effectively reduced.

The air control breathing machine comprises a main machine and a breathing mask, the main machine is communicated with an air source port and a communication port, the communication port is divided into a suction port, an expiration port, an inspiration port, an atomization port and an exhaust port, the suction port is communicated with a liquid collection bottle, the expiration port is communicated with the breathing mask, and a humidification tank is communicated between the inspiration port and the breathing mask. An atomizing cup is communicated between the atomizing opening and the breathing mask; compressed air or medical oxygen is used as power, a pneumatic control mechanism is used for working, a power source is not needed, and the device can be used under the power-source-free conditions such as emergency treatment, transfer and field. The breathing machine has the functions of intermittent mechanical ventilation IPPV of the breathing machine, synchronous intermittent instruction ventilation SIMV, positive airway pressure ventilation CPAP, positive end expiratory pressure PEEP, airway inspiration negative pressure triggering, airway expiration positive pressure protection, airway atomization humidification, suction, air and oxygen mixing and manual ventilation, can be used in normal pressure departments, can reach 0.3 MPa in a hyperbaric oxygen chamber, can reach 0.3 MPa in a hyperbaric oxygen chamber, can reach 0.3 MPa in a hyperbaric oxygen chamber, can reach 0.3 MPa in a hyperbaric oxygen chamber, can reach 0.3 MPa in a hyperbaric oxygen chamber, can reach 0.3 MPa in a hyperbaric oxygen chamber, can reach 0.3 MPa in a hyperbaric oxygen chamber, can reach 0.3 MPa in a hyperbaric oxygen chamber, can reach 0.3 MPa and long-time stable and reliable use can be realized.

The present application relates to a kind of medical equipment, specifically disclose a kind of anesthesia machine and its gas path switching system, including shell, slide bar assembly and switching drive device. Wherein, the cavity is formed in shell, for with the breathing port of anesthesia machine communication, the opposite ends of shell are respectively with the automatic ventilation interface and manual ventilation interface of cavity communication;Slide bar assembly is movably worn in cavity, including slide bar and the sealing element connected to slide bar;Switching drive device is used to drive slide bar to move to make sealing element automatic ventilation interface seal or manual ventilation interface seal.The anesthesia machine and its gas path switching system, by the driving of switching drive device can automatically realize the switching of manual ventilation mode and automatic ventilation mode, so as to effectively reduce the operation of doctor when starting self-checking, shorten self-checking time.

The utility model relates to the technical field of medical instruments, and discloses a breathing air bag with a manual ventilation function, which comprises a sacculus of the breathing air bag, an air inlet joint and an air outlet joint, two connecting components and a manual ventilation device, and the air inlet joint and the air outlet joint are respectively arranged at two ends of the sacculus. The air inlets are respectively arranged on the air inlet joint and the air outlet joint; the four outer cylinders are equally divided into two groups and are hinged to the two connecting components respectively, and the outer cylinders can rotate and move around hinge points; one end of the inner rod is arranged on the inner side of the outer cylinder. According to the breathing air bag with the manual ventilation function, the defects that a traditional breathing air bag with the manual ventilation function is inconsistent in ventilation effect and difficult to accurately control the ventilation volume are effectively overcome, through the technical characteristics, the stability and reliability of ventilation treatment are improved, the operation difficulty of medical staff and the risk of a patient are reduced, and the breathing air bag with the manual ventilation function is worthy of popularization and application. And safer and more effective support is provided for first aid and medical treatment processes.

The utility model provides a multi-degree-of-freedom dynamic fuel quantity measurement and verification system, and relates to the technical field of aircraft design. The device comprises an oil source, an oil inlet pipeline, an oil return pipeline, an oil return port, a three-way pipeline, an oil outlet pipeline, a ventilation pipeline and a test bench, and indirect data verification of an oil inlet flow meter and an oil return flow meter is realized by arranging an oil quantity measuring and weighing platform; the oil inlet branch pipe, the oil return branch pipe and the ventilation branch pipe are arranged and matched with the manual oil inlet adjusting valve, the oil return ball valve and the manual ventilation valve, and it is guaranteed that when blockage occurs, normal operation of the system can be guaranteed by switching to the branch pipes; the experiment process is managed through the data acquisition and management device, the interior of the used oil tank body is arranged through a keel frame structure, and simulation of the heterosexual oil tank can be achieved at low cost in cooperation with the skin. And the circulation of internal oil is ensured through the through-flow holes. The verification system is simple in structure, and has a data verification capability and a certain fault redundancy capability.

A system for reducing the risk of overventilating a subject in need of ventilation includes a ventilation assembly comprising a ventilation bag, a patient interface and an automatic flow reduction valve configured to impede flow to a subject wearing the ventilation bag when a pressure or flow rate in a flow path from the bag to the subject exceeds a maximum threshold value. A ventilation sensor positioned in or near to the flow path is configured to measure the pressure or flow rate in the flow path. The ventilation assembly is configured to communicate via a user interface or a communicably coupled device with a display at least one signal related to a maximum tidal volume determined based on signals from the ventilation sensor.