摘要:
A ventilator, or a breathing assistance apparatus, is disclosed to ventilate patients who may have breathing difficulties, said device comprising a inspiratory pressure control duct configured to be immersed in a first body of fluid; a positive end-expiratory pressure control duct configured to be immersed in a second body of fluid; at least one valve connected to the peak inspiratory pressure control duct and to the positive end-expiratory pressure control duct, and at least one controller communicably connected to the valve to control rate of cycling of the valve, thereby controlling number of breaths per minute, and to control the duration of peak inspiratory pressure also known as inspiratory time.
摘要:
A pressure indicator consists of an upper cover (1), an intermediate member (2), an elastic pressure-sensing diaphragm (3), a transmission indication rod (4), and a lower cover (5). A check valve (1-2) is disposed in the upper cover (1). An outer wall and the check valve (1-2) jointly constitutes an upper opening (1-1). The upper cover (1) and the intermediate member (2) jointly form an air channel (1-5) through the air. The lower port (2-2) of the intermediate member (2) is bonded to a circumferential flange (3-1) of the elastic pressure-sensing diaphragm (3). A groove (3-6) fitted to a support end (4-1) of the transmission indication rod (4) is disposed in the lower surface (3-3) of the elastic pressure-sensing diaphragm (3). The transmission indication rod (4) consists of the support end (4-1), a connection rod (4-2), an indication end (4-4), and holes (4-3). The connection rod (4-2) and the indication end (4-4) are separately connected to the top part and the bottom part of the support end (4-1). The holes (4-3) are located on two sides of the indication end (4-4).
摘要:
A ventilator, or a breathing assistance apparatus, is disclosed to ventilate a patient who may have breathing difficulties, said device comprising a valve comprising at least three ports, said three ports comprising one inlet port, a first outlet port and a second outlet port, the inlet port adapted for connection to the patient via a primary duct configured for flow of a gas, at least one peak inspiratory pressure (PIP) control duct adapted for connection to the first outlet port of the valve, at least one positive end-expiratory pressure (PEEP) control duct adapted for connection to the second outlet port of the valve, and at least one controller communicably connected to the valve to control rate of cycling of the valve, thereby controlling number of breaths per minute, and to control the duration of peak inspiratory pressure, also known as inspiratory time.
摘要:
The present invention relates to a device for controlling the pressure of a gas in a circuit by means of the generation of bubbles through a liquid, when this effect is used to produce a continuous positive pressure in the airway (CPAP) . The invention comprises a receptacle containing a liquid; a bubble tube with one end located outside the fluid connected to a device connected to a patient's respiratory tract and the other end located within the liquid; and means for adjusting the level of liquid in the receptacle. The device may also comprise, in addition to the aforesaid, means to stabilize the liquid level inside the receptacle, moistening and heating means located inside the receptacle, and a gas-recycling system that conveys all or a portion of the gases generated in the receptacle towards the moistening and heating device.
摘要:
A nasal cannula (100) for delivering respiratory gases to a neonatal infant comprising a manifold including a chamber (10), a gases inlet (16) to the chamber and a gases outlet (12), a low resistance path for gases through the chamber from its inlet to its outlet and a pair of nasal prongs (116, 118) in fluid communication with the chamber with each prong substantial equidistant the inlet, and directly in the low resistance path to eliminate deadspace.
摘要:
A bubble continuous positive airway pressure device has a container (10), an inner conduit (21) for conducting an airflow, an outer conduit (22), a rack (31), a gear (32), and a knob (331). The inner conduit (21) has an aperture (2121). The outer conduit (22) is longitudinally slidable relative to the inner conduit (21), and has at least one through hole (221) connected with the aperture (2121). The knob (331) drives the gear (32) to rotate and the gear (32) drives the rack (31), so as to drive the outer conduit (22) to slide downward or upward in the container (10). The bubble continuous positive airway pressure device prevents dust and bacteria in the ambient environment from polluting the liquid in the container (10) when adjusting gas pressure, so as to ensure the patients' health.