39 results about "Oxygen Capacity" patented technology

The invention relates to the field of medical equipment, in particular to a nursing portable oxygen therapy device which comprises an oxygen therapy mechanism and an oxygen mask. The oxygen conveying mechanism communicates with the oxygen mask and is used for conveying oxygen to the oxygen mask; a pressure sensing mechanism used for responding to pressure changes in the oxygen mask is arranged in the oxygen mask, a self-adaptive opening and closing mechanism is arranged on a communication path of the oxygen mask and the oxygen conveying mechanism, and the self-adaptive opening and closing mechanism is used for controlling connection and disconnection between the oxygen mask and the oxygen conveying mechanism based on response information of the pressure sensing mechanism. According to the invention, precious oxygen resources can be almost completely used for effective breathing of a patient, so that the oxygen supply time is prolonged under the same oxygen capacity.