Portable home oxygen therapy medical equipment
AssigneeAir Liquide Sante (International)
InventorsJean-Claude Boissin, Vincent Hennebel
Life of this patent
Estimating the term…
Abstract
A portable apparatus for domiciliary and ambulatory oxygen therapy intended for people suffering from respiratory insufficiencies and treated by administering gaseous oxygen so as to correct the gas contents in their blood, in particular the carbon dioxide and oxygen contents. The system includes an air compression device; a concentrator device allowing gaseous oxygen having a purity of 50 to 99% to be produced; an oxygen liquefaction device; an accumulation and storage device for the oxygen liquefied by the liquefaction device; a liquefied-oxygen warming and vaporizing device; and a gas transport section for conveying the oxygen warmed and vaporized by the warming/vaporizing device to a gas delivery interface connected to the upper airways of a user.
Claims31
Portable medical apparatus for delivering an oxygen-rich gas to a user, comprising:
- gas compression means for delivering air at a pressure of greater than 105 Pa to gas concentrator means;
- electric-current supply means for supplying electric current to at least said gas compression means;
- gas concentrator means allowing an oxygen-rich gas containing from 50 vol % to 99 vol % of oxygen to be produced from air compressed by said gas compression means;
- gas liquefaction means allowing at least some of the oxygen contained in said oxygen-rich gas produced by said gas concentrator means to be liquefied;
- gas accumulation means allowing at least some of the oxygen liquefied by said gas liquefaction means to be collected and stored, at least temporarily;
- liquefied-gas warming and vaporizing means allowing at least some of the liquefied oxygen coming from said gas accumulation means to be warmed and vaporized;
- and
- gas transport means allowing at least some of the oxygen from at least one of said gas concentrator means and said warming and vaporizing means to be transported to at least one gas delivery interface capable of being connected to the upper airways of a user.
Medical apparatus for producing and liquefying oxygen-rich gas, comprising:
- gas compression means for delivering air at a pressure of greater than 105 Pa to gas concentrator means;
- gas concentrator means allowing an oxygen-rich gas containing from 50 vol % to 99 vol % of oxygen to be produced from air compressed by the said gas compression means;
- gas liquefaction means allowing at least some of the oxygen contained in the said oxygen-rich gas produced by the said gas concentrator means to be liquefied;
- and
- gas accumulation means allowing at least some of the oxygen liquefied by the said gas liquefaction means to be collected and stored, at least temporarily.
Dependencies are inferred from the claim text.