37 results about "Positive pressure breathing" patented technology

A system is provided for delivering a flow of breathing gas to an airway of a patient. The system includes a pressurizing flow module that generates a pressurized flow of breathing gas and a patient circuit coupled to the pressurizing flow module configured to communicate the flow of breathing gas to an airway of a patient. The system includes a sensor for monitoring a characteristic of a breathing pattern of the patient a controller that communicates with the sensor configured to increase a fraction of inspired carbon dioxide if the characteristic exceeds an upper threshold value and to provide servo-ventilation if the characteristic is less than a lower threshold value. The upper threshold value and the lower threshold value are changed based on the monitored characteristic of the breathing pattern of the patient.

The present invention relates to a nasal respiratory mask system comprising: a nasal mask that is tightly attached to the face of a user and serves as means for leading positive-pressure breathing gas to the nose of the user, a frame to keep the nasal mask at a predetermined position, and a headgear that is mounted on the head in order to attach the nasal mask tightly to the face; wherein, the headgear comprises, on the tip thereof, a headgear strap for adjusting the length of the headgear, the headgear strap comprises a headgear fastener that serves as means for connection / disconnection with the frame, the frame comprises a fastener catch that engages with the headgear fastener, and the fastener catch comprises an axisymmetric guide whose (rotation) axis is the insertion direction of the headgear fastener. The present invention provides a nasal respiratory mask system with which a headgear can be easily connected at the beginning of wearing, twisting of the headgear during wearing is prevented, and disassembly upon daily washing is easy.

A portable positive pressure breathing apparatus includes a demand valve with a supply inlet port adapted to be connected to a pressurized source of oxygen and an outlet port adapted to be connected to the inlet of a patient's breathing appliance. The demand valve further includes a reference chamber and a valve assembly responsive to the reference chamber / appliance inlet pressure differential for connecting / disconnecting the inlet port to and from the outlet port. At least one manually adjustable back pressure regulator is connected to the pressure source and the reference chamber for setting the pressure in the reference chamber (and inlet to the breathing appliance) at a selected level above atmospheric pressure.

A tubing assembly for use in providing a flow of positive pressure breathing gas to a patient. The tubing assembly includes a manifold portion structured to receive the flow of positive pressure breathing gas, a number of tubular portions which each extend from the manifold portion to a distal end which is structured to be coupled to a patient interface for use in delivering the flow of positive pressure breathing gas to the patient, and a reflectance pulse oximetry sensor positioned in or on one of the number of tubular portions. The sensor is structured to be disposed adjacent the patient when the tubing assembly is disposed on the patient for determining blood oxygen saturation levels of the patient.

The invention relates to positive pressure breathing equipment. The positive pressure breathing equipment comprises a gas channel, a hydrogen production device, a pressurizing device, a mixing device,an atomizing device, an output device and an output device. The hydrogen production device, the pressurizing device, the mixing device, the atomizing device and the output device are all coupled withthe gas channel. The hydrogen production device is used for electrolyzing electrolyzed water to generate hydrogen-containing gas. The pressurizing device can selectively accelerate external gas to generate accelerated gas. The mixing device is used for mixing the hydrogen-containing gas with the accelerated gas to generate positive pressure gas. The atomizing device is used for selectively generating atomizing gas. The output device is used for selectively outputting the hydrogen-containing gas, the positive pressure gas, the hydrogen-containing gas and the atomizing gas or the positive pressure gas and the atomizing gas. Therefore, the breathing device can be matched with the breathing frequency of a user, positive-pressure air is generated by the breathing device in the inspiration period and enters the lung of the patient through the gas channel, and the lung is expanded. The positive pressure does not need to be generated during expiration, the tail end of a breathing pipeline isopened outwards, and gas is automatically exhausted.

An automatic positive pressure breathing apparatus is provided, applicable to connect an upper respiratory tract of a user, which includes a gas generator, a gas flow sensing device, a humidification device, a heating device, a breathing tube, and a mask device. The gas generator includes a signal processing module and a filter. Wherein the signal processing module includes a control circuit and the filter is embedded in the gas generator. The first connecting end of the gas flow sensing device is positioned at one end of the gas flow sensing device and is connected to one side of the gas generator. The second connecting end is positioned at the other end of the gas flow sensing device. The gas flow sensing device includes a first pressure sensing element, a second pressure sensing element, and a radial structure.

An inspiratory resistor valve system (IRV) to regulate intrathoracic pressure during positive pressure breathing, spontaneous inspirations, and CPR may include an inspiratory port. The IRV system may include patient port. The IRV system may include a separate expiratory port. The IRV may include a plurality of atmospheric pressure sensitive valves. The plurality of atmospheric pressure sensitive valves may isolate the expiratory port and the inspiratory port from one another.

A breathing assistance device may include a turbine for generating flow of pressurized respiratory gas, a duct for carrying pressurized gas to a patient, and a mechanism to control gas pressure capable of elaborating a pressure setting for the turbine. The turbine is connected to a speed sensor for acquiring the rotation speed of a rotating element of the turbine. A mechanism controls a calculation in order to elaborate a pressure setting and to send the pressure setting to the turbine. A method regulates the pressure of a respiratory gas delivered by a turbine to a patient. The method involves elaborating a pressure setting for the turbine. The pressure setting is elaborated using a signal representative of the rotation speed of a rotating element of the turbine.

A medical device measures a pressure of a pressurized breathing gas and includes a pressure sensor arranged at a point of measurement and measures the pressure of a sample gas at a sampling point. The sampling point and the point of measurement are connected by a pressure sampling tube in which a pressure wave of the sample gas can propagate from the sampling point to the point of measurement. The tube has a sampling tube volume and an acoustic impedance. The device further includes a damping arrangement fluidly communicating with the tube. The damping arrangement includes a flow restrictor and a receptor chamber arrangement. The receptor arrangement includes a receptor chamber which receives the pressure wave. The restrictor correlates to the acoustic impedance to prevent acoustic resonance in the tube. The receptor chamber correlates at least to the tube volume to prevent acoustic resonance in the tube.

A method of managing secretions of an intubated patient through an endotracheal tube (2) associated externally to an inflatable cuff (3), the method comprising: inflating the inflatable cuff (3) to place the patient (P) The bronchopulmonary region of the trachea is isolated from the external environment; a series of overpressures (P1, P2) are generated inside the endotracheal tube (2) to induce breathing in the patient; and during the generation of one of the overpressures (P1, P2), The inflatable cuff (3) is deflated in order to allow secretions (S) produced by the patient (P) to drain externally along the trachea.

A system (10) for delivering breathing gas to a passenger, the system comprising:-a mask (30) comprising a face portion (20) having a breathing lumen (34); -a tube (4B) configured to be supplied with a pressurized breathing gas; and-a gas pocket (40) disposed between the tube (4B) and the facial portion (20), a passage (35) connecting the gas pocket (40) to the breathing chamber (34) such that the system is configured to supply the breathing chamber (34) via the gas pocket (40), the gas pocket (40) comprising a front portion (40a) connected to the mask (30) and a rear portion (40b) connected to the front portion (40a), the front portion (40b) being connected to the rear portion (40b). The system has a stowed configuration in which the gas pocket (40) remains folded between the backing (50) and the face portion (20), and an expanded configuration in which the gas pocket (40) remains folded between the backing (50) and the face portion (20).

The invention discloses a replaceable forehead pad for a positive pressure breathing mask. The replaceable forehead pad comprises a substrate part, a support part and a buckling body; the substrate part is provided with two contact sheet bodies and a connection arm which is used for connecting two contact sheet bodies; the support part is provided with two support bodies and a plate arm which is connected with the two support bodies; a hollow area is formed among the support bodies, the plate arm and the contact sheet bodies and a hollow hole is formed on each support body to ensure that the support bodies can be flexibly compressed to be deformed; the buckling body is extended from the surfaces of two support bodies and the plate arm, and the long side of the buckling body is longer than the long side of the formed hollow area; the buckling body is provided with buckling parts; the buckling parts, and buckled parts of a mask device of the positive pressure breathing mask can be buckled and assembled; therefore, the replaceable forehead pad can be buckled conveniently and reduce the falling risk, and structural intensity and stress dispersing can be enhanced so as to reduce stress discomfort.

The invention discloses a snoring detection method, a snoring detection device and a positive pressure breathing machine. The snoring sound detection method includes the following steps: obtaining a high-frequency signal corresponding to a snoring event range in a breathing signal of a current breathing process; converting the high-frequency signal into a low-frequency signal; judging that the low-frequency signal Whether the value of is greater than the preset threshold; if so, it is determined that a snoring event occurs in the current breathing process. The snoring sound detection solution of the present invention converts high-frequency signals into relatively slow-changing low-frequency signals, which can reduce the influence of noise on snoring sound recognition and improve the accuracy of snoring sound recognition.