초록 ▼

A portable oxygen conserving apparatus to deliver oxygen to a patient generally only during inhalation. The device includes an inlet connected to an oxygen source, an outlet which communicates oxygen to a patient, a mass-flow sensor connected to the outlet for detecting inhalation of a patient, and

A portable oxygen conserving apparatus to deliver oxygen to a patient generally only during inhalation. The device includes an inlet connected to an oxygen source, an outlet which communicates oxygen to a patient, a mass-flow sensor connected to the outlet for detecting inhalation of a patient, and a valve disposed between the inlet, and outlet for controlling oxygen to the patient in response to inhalation detection and thereby providing a pulse of oxygen.

대표청구항 ▼

[ Having thus described the invention, it is now claimed:] [1.] A portable oxygen conserving device adapted to control the flow of oxygen from a source to a patient, comprising:a housing;said device having an inlet adapted for connection with an oxygen source;said device having an outlet adapted for

[ Having thus described the invention, it is now claimed:] [1.] A portable oxygen conserving device adapted to control the flow of oxygen from a source to a patient, comprising:a housing;said device having an inlet adapted for connection with an oxygen source;said device having an outlet adapted for communicating oxygen to a patient;said device having at least one battery;said device having a mass flow sensor within said housing in operative communication with the outlet for detecting a patient's inhalation;said device having a valve with an electronic control, said valve and said electronic control being powered by said battery and all being contained within said housing said valve being interposed between the inlet and outlet for controlling the flow of oxygen from the inlet to the outlet in response to the mass flow sensor detecting a patient's inhalation and providing a pulse of oxygen to the patient, wherein said valve is energized by said control to an open state whereby said inlet and said outlet are in continuous fluid communication and said valve is de-energized by said control to a closed state whereby fluid communication between said inlet and said outlet is precluded; andsaid device having a manual switch for switching said valve between a pulse mode and a continuous flow mode to provide a continuous flow of oxygen to a patient.