Patent ID: 7841341

Claim:
An accessory for an aerosol inhalation system comprising: a main conduit body having an outlet end for placement close to a mouth of a patient; a first leg conduit in fluid communication with the main conduit body and including a distal end; a second leg conduit in fluid communication with the main conduit body and including a distal end, the second leg conduit being spaced apart from the first leg conduit; a first port formed as part of the first leg conduit for attachment to a device that generates aerosol particles as a means for delivering medication to the patient; a second port formed as part of the first leg conduit; a third port formed as part of the second leg conduit; a holding chamber having a first compartment and a second compartment separated from the first compartment, with the first compartment being sealingly and fluidly coupled to the second port and the second compartment being sealingly and fluidly coupled to the third port; and an arrangement of valves such that when the patient exhales, the first leg conduit is sealingly closed off from the main conduit body and the second leg conduit resulting in the aerosol particles flowing into and being held in the first compartment of the holding chamber and conversely, when the patient inhales, the first leg conduit is opened to the main conduit body and in fluid communication with the second leg conduit resulting in the aerosol particles delivered through the first port being delivered to the patient, wherein the holding chamber is defined by a reservoir bag with the first and second compartments defined therein and separated from one another by a bi-furcating wall, the reservoir bag being formed of a expandable/collapsible material, wherein the reservoir bag includes a fourth port integrally formed therewith and fluidly in communication with the first compartment and a fifth port integrally formed therewith and fluidly in communication with the second compartment, each of the fourth and fifth ports including fastening features that permit them to be sealingly mated with the second and third ports.