Heated cartridge humidifier
First Claim
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.
3 Assignments
0 Petitions
Accused Products
Abstract
An improved heated cartridge humidifier for delivering humidified respiratory gases to patients. A humidifier housing includes a gas and water supply and a gas outlet. A humidifier base plate engages a heating element. The base plate includes a central heat conductive portion retained in an outer insulating portion which prevents the lateral dissipation of heat received from the heating element. The baseplate enhances the heat transfer to the water, and therefore, enhances the humidity of the gases.
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Citations
15 Claims
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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:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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- 12. An improved heated cartridge humidifier for use with a gravity feed water supply container and a separate heat source, the humidifier having a housing operationally engaging the heat source for receiving heat therefrom, said housing having a sidewall, an open lower end portion and an integrally formed closed upper end portion, said housing defining a chamber with a gas inlet, a gas outlet, a water inlet in fluid communication with water from the container, and a water control system for controlling the amount of water entering said chamber through said inlet, the improvement comprising a base plate including an insulating portion and a conductive portion, said insulating portion sealingly retaining a perimeter of said conductive portion, said insulating member being sealingly engaged to the open end portion of said housing.
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14. 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:
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a humidifier housing operationally engaging 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 humidified gas outlet, a water inlet adapted to receive water from the supply and to retain said water at a specified level, and a gas inlet including an extended lower end depending from an underside of said upper end portion into said housing to a point adjacent the level of the water for directing the breathable gas adjacent the level of the water in the housing for enhancing humidification of the gas; and a base plate sealingly engaged to said open lower end of said housing. - View Dependent Claims (15)
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Specification