42 results about "Positive-Pressure Respiration" patented technology

A multi-use, hand held, single patient oscillatory positive expiratory pressure respiratory therapy device which is easily assembled and disassembled for cleaning, and which is not position dependent during therapy, but operable through a wide range of device orientation.

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.

In one embodiment, the invention provides a medical method for treating a person and comprises repeatedly compressing the person's chest. While repeatedly compressing the person's chest, the method further includes repeatedly delivering a positive pressure breath to the person and extracting respiratory gases from the person's airway using a vacuum following the positive pressure breath to create an intrathoracic vacuum to lower pressures in the thorax and to enhance blood flow back to the heart.

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 interface for positive pressure respiratory therapy includes a mask assembly having a mask seal and a mask shell. The mask assembly is positioned lower than and exposes a bridge of the user's nose. The mask seal includes portions that contact opposing sides of the user's nose. Each portion of the mask seal includes supports that help maintain the mask seal's shape. Two covers can be supported relative to the mask assembly and adjacent a respective portion of the mask seal. The covers limit expansion of the portions of the mask seal in response to pressurized air within the mask seal. The supports can transfer load from the mask seal to the covers. An interface system can include multiple size mask seals, which can be designed with consideration of ethnic variations in nose size and / or shape.

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.