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CPAP humidifier having sliding access drawer

  • US 6,718,974 B1
  • Filed: 10/06/2000
  • Issued: 04/13/2004
  • Est. Priority Date: 10/06/2000
  • Status: Expired due to Term
First Claim
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1. A gas delivery device adapted to be coupled with a patient for delivery of gas to the patient, said device comprising:

  • a gas delivery assembly adapted to receive patient gas and to convey the gas along a path of travel to said patient; and

    a humidifier for creating contact between said patient gas and a supply of water in order to produce a humidified gas output stream, said humidifier including first and second slidingly interfitted members, each of said members having a length and a height, said second member being adapted to hold a supply of water, said members being relatively shiftable along an axis that is substantially parallel to the axis along the length of said second member between an open position permitting filling of said second member with water and a closed, humidifying position wherein the members cooperatively define an air-water plenum chamber, there being a gas input and a gas output in communication with said plenum chamber for coupling the humidifier into said path of travel, wherein said first member comprises a cabinet, said second member comprises an open top drawer member adapted to hold a supply of water, there being a connection assembly including components on said cabinet and drawer member respectively and operable for slidingly supporting said drawer member within said cabinet and permitting selective sliding movement of the drawer member between said open position and said closed position, said drawer member having a bottom wall, an upstanding sidewall presenting an upper margin, and a resilient seal adjacent said upper margin for sealingly engaging said cabinet when said drawer member is in said closed position.

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