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Heated cartridge humidifier

  • US 5,943,473 A
  • Filed: 05/29/1997
  • Issued: 08/24/1999
  • Est. Priority Date: 05/29/1997
  • Status: Expired due to Term
First Claim
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1. A heated cartridge humidifier for use with a gravity feed water supply, a breathable gas supply and a separate heat source, and, when engaged with the heat source, the humidifier heating and humidifying the breathable gas to be inhaled by a patient, said humidifier comprising:

  • a humidifier housing that operationally engages the heat source for receiving heat therefrom, said housing having a sidewall with an open lower end portion and a closed upper end portion, said housing being provided with a gas inlet, a humidified gas outlet, and a water inlet adapted to receive water from the supply; and

    a base plate sealingly engaged to said open lower end of said housing, said base plate including an insulating portion and a conductive portion, said insulating portion sealingly retaining a perimeter of said conductive portion and providing the attachment point of said base plate to said housing, said conductive portion being made of a material which conducts heat received from the heating source for heating water received from said water inlet and humidifying the breathable gas.

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