Electronic oxygen conserver and filling unit
AssigneeInvacare Corporation
InventorsJoseph B. Richey, II, Thomas Strothmann
Life of this patent
Estimating the term…
Abstract
A respiratory system and method includes a filling unit for filling a portable bottle of respiratory gas and a conserver for mounting on such a bottle. A battery on the conserver may be recharged when the bottle is placed on the filing unit. The conserver may include electric timing circuitry operative to control the timing of pulsed flow of respiratory gas from the conserver, and an external electrical coupler to enable adjustment of the timing of the pulsed flow. The conserver may include at least one sensor operative to sense the reversal of flow between exhalation and inhalation, the conserver being operative to commence a respiratory gas delivery pulse in response to the sensing of the reversal of flow.
Claims9
An electronic conserver for use on a bottle of respiratory gas that is refillable when engaged with a filling unit, the conserver comprising:
- a rechargeable battery;
- fluid connections for placing the conserver in fluid communication with the filling unit
- and for placing the conserver in fluid communication with the bottle;
- a coupler for electrically coupling the battery with a battery charger of a filling unit when the bottle is engaged with the filling unit by the fluid connections;
- wherein respiratory gas is prevented from flowing from the filling unit to the bottle unless the rechargeable battery is electrically connected to the battery charger by the coupler.
Dependencies are inferred from the claim text.