IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0618494
(2012-09-14)
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등록번호 |
US-8662479
(2014-03-04)
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발명자
/ 주소 |
- Nichols, Walter A.
- Tucker, Christopher S.
- Limaye, Amit
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출원인 / 주소 |
|
대리인 / 주소 |
Buchanan Ingersoll & Rooney PC
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인용정보 |
피인용 횟수 :
1 인용 특허 :
39 |
초록
▼
A respiratory humidification system having a capillary passage in communication with a ventilator, the ventilator adapted to deliver an air stream, a heater operable to at least partially vaporize water in the capillary passage, a pumping unit adapted to supply water to the capillary passage, wherei
A respiratory humidification system having a capillary passage in communication with a ventilator, the ventilator adapted to deliver an air stream, a heater operable to at least partially vaporize water in the capillary passage, a pumping unit adapted to supply water to the capillary passage, wherein the water upon heating is at least partially vaporized to form an aerosol stream. The aerosol stream is combined with the air stream to form a humidified air stream.
대표청구항
▼
1. A respiratory humidification system having an enhanced capacity to operate with mineral laden water, the system comprising: a source of water;a coated capillary passage whose operating temperature is in the range of 120 to 130 degrees Celsius, and which is in communication with a ventilator, the
1. A respiratory humidification system having an enhanced capacity to operate with mineral laden water, the system comprising: a source of water;a coated capillary passage whose operating temperature is in the range of 120 to 130 degrees Celsius, and which is in communication with a ventilator, the ventilator adapted to deliver an air stream;a heater operable to at least partially vaporize water in the capillary passage;a pumping unit adapted to supply water to the capillary passage, wherein the water upon heating is at least partially vaporized to form an aerosol stream, and wherein the aerosol stream is combined with the air stream to form a humidified air stream; anda filter at a location upstream of the capillary passage and operable to demineralize the water being supplied to the capillary passage. 2. The system of claim 1, wherein the coated capillary passage is coated with a fluorine-containing polymer. 3. The system of claim 1, comprising: a water recirculation arrangement to accommodate continuous operation of the pumping unit; anda controller having an on-off switch and programmed such that the controller is configured to continuously operate the pump and to maintain the capillary passage in a heated condition when the controller switch is on. 4. The system of claim 3, wherein the controller controls humidity by changing flow rate of water to the capillary passage. 5. The system of claim 4, wherein the controller varies the rate of humidification in response to changes in flow rate of air from the ventilator. 6. The system of claim 1, wherein the pumping unit delivers the water to the capillary passage at a pressure of approximately 10 to 80 psig. 7. The system of claim 1, wherein the heater is adapted to produce aerosol particles having a particle size of less than 2 microns. 8. The system of claim 1, wherein the aerosol stream from the capillary passage is directed in a coaxial relation with respect to the air stream from the ventilator. 9. The system of claim 1, comprising: a flow tube having an inlet end in fluid communication with an outlet of the capillary passage and an outlet adapted for connection to a patient interface device. 10. The system of claim 1, wherein the capillary passage comprises: a laminate body having the capillary passage therein, the capillary passage being located between opposed layers of the laminate body which are bonded together. 11. The system of claim 1, wherein the aerosol stream includes aerosols having a particle size of less than 2 microns and wherein the aerosols evaporate upon entrainment with the air stream. 12. The system of claim 1, wherein the filter is an ion-exchange resin filter. 13. The system of claim 1, comprising: a water recirculation arrangement to accommodate continuous operation of the pumping unit;a controller having an on-off switch and programmed such that the controller is configured to continuously operate the pump and to maintain the capillary passage in a heated condition when the controller switch is on;wherein the pumping unit delivers the water to the capillary passage at a pressure of approximately 10 to 80 psig and at a flow rate of approximately 0.25 cc/minute to 2.2 cc/minute;wherein the heater is adapted to produce aerosol particles having a particle size of less than 2 microns; andwherein the aerosol stream from the capillary passage is directed in a coaxial relation with respect to the air stream from the ventilator. 14. A respiratory humidification system having an enhanced capacity to operate with mineral laden water, the system comprising: a source of water;a coated capillary passage, which is in communication with a ventilator, the ventilator adapted to deliver an air stream;a heater operable to at least partially vaporize water in the capillary passage;a pumping unit adapted to supply water to the capillary passage, wherein the water upon heating is at least partially vaporized to form an aerosol stream, and wherein the aerosol stream from the capillary passage is directed in a coaxial relation with respect to the air stream from the ventilator to form a humidified air stream; anda filter at a location upstream of the capillary passage and operable to demineralize the water being supplied to the capillary passage. 15. The system of claim 14, wherein the coated capillary passage is coated with a fluorine-containing polymer. 16. The system of claim 14, comprising: a water recirculation arrangement to accommodate continuous operation of the pumping unit; anda controller having an on-off switch and programmed such that the controller is configured to continuously operate the pump and to maintain the capillary passage in a heated condition when the controller switch is on. 17. The system of claim 16, wherein the controller controls humidity by changing flow rate of water to the capillary passage. 18. The system of claim 17, wherein the controller varies the rate of humidification in response to changes in flow rate of air from the ventilator. 19. The system of claim 14, wherein the pumping unit delivers the water to the capillary passage at a pressure of approximately 10 to 80 psig. 20. The system of claim 14, wherein the heater is adapted to produce aerosol particles having a particle size of less than 2 microns. 21. The system of claim 14, comprising: a flow tube having an inlet end in fluid communication with an outlet of the capillary passage and an outlet adapted for connection to a patient interface device. 22. The system of claim 14, wherein the capillary passage comprises: a laminate body having the capillary passage therein, the capillary passage being located between opposed layers of the laminate body which are bonded together. 23. The system of claim 14, wherein the aerosol stream includes aerosols having a particle size of less than 2 microns and wherein the aerosols evaporate upon entrainment with the air stream. 24. The system of claim 14, wherein the filter is an ion-exchange resin filter.
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