A blower unit for use as part of an integrated blower/humidification system is described. The blower unit has an outer casing, which encloses and forms part of the blower unit, the casing including an air inlet vent. The blower unit further includes a humidifier compartment for receiving a humidifie
A blower unit for use as part of an integrated blower/humidification system is described. The blower unit has an outer casing, which encloses and forms part of the blower unit, the casing including an air inlet vent. The blower unit further includes a humidifier compartment for receiving a humidifier unit with a separate gases inlet and outlet, the compartment having a heater base for heating the contents of the humidifier unit. The compartment also has a blower inlet port which aligns with the humidifier unit inlet in use, the blower providing a gases path through the casing between the inlet vent and the inlet port. The blower unit also includes a fan for providing a pressurized gases stream along the gases path, and a power supply unit for powering the fan. The gases path is routed over the power supply unit in order to provide a cooling air flow.
대표청구항▼
1. An integrated blower and humidification system for providing heated humidified gases to a user, comprising: a humidifier unit adapted to contain a volume of water and also adapted for use in conjunction with a heater base such that said volume of water can be heated, said humidifier unit having a
1. An integrated blower and humidification system for providing heated humidified gases to a user, comprising: a humidifier unit adapted to contain a volume of water and also adapted for use in conjunction with a heater base such that said volume of water can be heated, said humidifier unit having a gases inlet port, a separate gases outlet port and a separate top fill aperture,a blower unit having an outer casing and having a humidifier compartment into which said humidifier unit locates in use, said humidifier compartment having an enclosing wall and a top opening, said humidifier unit inserted into said humidifier compartment through said top opening, said humidifier unit enclosed within said humidifier compartment by said enclosing wall, said humidifier compartment having a heater base, said blower unit further having an inlet vent open to atmosphere on said outer casing, a blower inlet port and an outlet port on said enclosing wall in said humidifier compartment, a gases path running between said inlet vent and said blower inlet port, and a fan unit to provide a pressurised gases stream along said gases path, in use said blower inlet port and said gases inlet port aligned to provide a gases route for gases exiting said blower unit via said blower inlet port and entering said humidifier unit via said gases inlet port, said gases exiting said humidifier unit via said gases outlet port,a connector to allow said gases stream exiting said humidifier unit to enter a patient interface,a lid unit, said lid unit and said blower unit are adapted to mutually connect in such a manner that rotation of a portion of said lid unit closes and seals said humidifier unit such that said humidifier unit is enclosed within said humidifier compartment, and said lid unit holds said humidifier unit in position in said humidifier compartment. 2. An integrated blower and humidification system as claimed in claim 1 wherein said humidifier unit comprises: a humidifier chamber that has said top fill aperture, a wall, and is adapted to contact said heater base in use, said humidifier chamber having the gases inlet and the separate gases outlet,an elongate inlet passage extending into said humidifier chamber from said gases inlet, said inlet passage having a first opening at a first end, said first end of said inlet passage spaced from the wall of said humidifier chamber,an elongate exit passage extending into said humidifier chamber from said gases outlet, said exit passage having a second opening at a second end, said second end of said exit passage spaced from the wall of said humidifier chamber,said first and second openings aligned to face upwards when said humidifier chamber is in use,and a baffle located between said first and second openings and adapted to prevent air that enters said humidifier chamber from said inlet passage from directly entering said exit passage. 3. An integrated blower and humidification system as claimed in claim 2 wherein said baffle is sized and shaped to vertically shield said first and second openings. 4. An integrated blower and humidification system as claimed in claim 1 wherein said lid unit comprises a separate chamber lid portion and handle portions, said handle portion releasably connectable to said chamber lid portion in such a manner that said handle portion can rotate relative to said chamber lid portion when connected to said chamber lid portion, said chamber lid portion adapted to close and seal said top fill aperture, said handle portion and said blower unit adapted to mutually connect in such a manner that said chamber lid portion is held in position on said humidifier unit, and said humidifier unit is held in position in said humidifier compartment. 5. An integrated blower and humidification system as claimed in claim 4 wherein said heater base is located at the bottom of said humidifier compartment, and said heater base is spring loaded, said heater base under compression when said humidifier unit and said chamber lid portion are in position and said handle portion is in position and engaged with said blower unit. 6. An integrated blower and humidification system as claimed in claim 5 wherein said blower unit has a plurality of grooves and said handle portion has a plurality of complimentary mating lugs, said lugs releasably engaging with said grooves as said handle portion is depressed and rotated. 7. An integrated blower and humidification system as claimed in claim 6 wherein said chamber lid portion has a circular top portion, and said handle portion has a circular central recess, said circular top portion sized to fit into said central recess, said handle portion and said chamber lid portion engaging by snap fit connection. 8. An integrated blower and humidification system as claimed in claim 7 wherein said chamber lid portion has a silicone seal sized and shaped to fit around and seal on the perimeter of said top fill aperture in use. 9. An integrated blower and humidification system as claimed in claim 8 wherein said blower unit has an outlet port, adapted to align with said humidifier outlet port in use and form a gases route for gases exiting said humidifier unit, and said connector is mounted on said outer casing and is in gaseous communication with said outlet port. 10. An integrated blower and humidification system as claimed in claim 9 wherein said connector is adapted to allow both pneumatic and electrical connection between said connector and said patient interface. 11. An integrated blower and humidification system as claimed in claim 10 wherein said humidifier unit will vent to atmosphere unless both of said chamber lid portion and said handle portion are in position, and said handle portion is engaged with said blower unit. 12. An integrated blower and humidification system as claimed in claim 11 wherein said humidifier unit and said humidifier compartment are mutually shaped such that said humidifier unit will only fit into said humidifier compartment in a single orientation. 13. An integrated blower and humidification system as claimed in claim 12 wherein said humidifier unit and said humidifier compartment are substantially circular in plan view, except for complimentary flat spots on the perimeter of each of said humidifier unit and said humidifier compartment, said flat spots shaped such that said humidifier unit will only fit into said humidifier compartment in one orientation. 14. An integrated blower and humidification system as claimed in claim 13 wherein said humidifier unit has a chamber seal running around the top edge of said humidifier unit adapted to seal against said humidifier compartment in use. 15. An integrated blower and humidification system as claimed in claim 14 wherein said humidifier compartment has a compartment seal, said compartment seal aligning with said chamber seal in use, when said humidifier unit is located in said humidifier compartment. 16. An integrated blower and humidification system as claimed in claim 13 wherein said blower inlet port and said outlet port have silicone seals adapted to substantially seal between said gases inlet port and said gases outlet port respectively in use. 17. An integrated blower and humidification system as claimed in claim 13 wherein said outer casing is substantially rectangular in plan view, said humidifier compartment having a perimeter wall defining a perimeter, said humidifier compartment shaped so that in plan view there is a gap between the perimeter of said humidifier compartment and at least one corner of said outer casing, said blower inlet port located on the perimeter wall of said humidifier compartment aligned with said gap and towards the top of said humidifier compartment, at least part of said gases path running substantially vertically within said gap along the height of said humidifier compartment. 18. An integrated blower and humidification system as claimed in claim 17 wherein said humidifier compartment is substantially circular in plan view. 19. An integrated blower and humidification system as claimed in claim 1, wherein said gases inlet port is configured to be radially offset from said gases outlet port. 20. An integrated blower and humidification system as claimed in claim 4, wherein said lid unit is configured to lock and unlock said lid unit from said blower unit.
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이 특허에 인용된 특허 (13)
Suhr Manfred W. (Cottage Grove WI), Anesthesia humidifier.
Dobson Darwin B. (Sun Prairie WI) Keefe Gregg D. (Boulder CO) Ogden Douglas R. (Arvada CO) Smith ; III Eugene P. (Westminster CO), Humidifier for a ventilator and an associated attachment.
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