A humidifier and humidity sensor is disclosed for use with a breathing assistance apparatus. The humidity sensor preferably includes senor(s) to sense absolute humidity, relative humidity and/or temperature at both the patient end and humidifier end. The humidifier may also include provision to both
A humidifier and humidity sensor is disclosed for use with a breathing assistance apparatus. The humidity sensor preferably includes senor(s) to sense absolute humidity, relative humidity and/or temperature at both the patient end and humidifier end. The humidifier may also include provision to both control independently the humidity and temperature of the gases. Further, a chamber manifold is disclosed to facilitate easy connection of the humidifier to various outlets, inlets and sensors. A heated conduit is described which provides a more effective temperature profile along its length.
대표청구항▼
1. A humidification apparatus for humidifying a gases flow to be supplied to a patient or other person comprising: a humidifier base having a horizontal base and a vertically extending wall extending a greater distance in a vertical direction than in a horizontal direction, the vertically extending
1. A humidification apparatus for humidifying a gases flow to be supplied to a patient or other person comprising: a humidifier base having a horizontal base and a vertically extending wall extending a greater distance in a vertical direction than in a horizontal direction, the vertically extending wall extending from and perpendicular to the horizontal base, the vertically extending wall and the horizontal base being integrally formed, the vertically extending wall having front and back surfaces, the front surface being perpendicular to the horizontal base, the back surface of the vertically extending wall and a back surface of the horizontal base defining a back surface of the humidifier base;wherein the vertically extending wall comprises first and second temperature sensors, the first and second temperature sensors each being within or located within the vertically extending wall, wherein when a humidification chamber is received by the humidifier base, one of the first or second temperature sensors is configured to measure a temperature of gases at or near an outlet of the humidification chamber; anda heater plate positioned on the horizontal base, the heater plate including a heat conductive material, the front surface of the vertically extending wall being perpendicular to the heater plate. 2. The humidification apparatus of claim 1, wherein the humidifier base is configured to removably receive the humidification chamber and the heater plate is configured to conduct heat to the humidification chamber, wherein when the humidification chamber is received by the humidifier base, a horizontal base of the humidification chamber is urged into contact with the heater plate and a tallest part of the vertically extending wall of the humidifier base is higher than a tallest part of the humidification chamber. 3. The humidification apparatus of claim 2, wherein the first and second temperature sensors are spaced apart from each other, wherein when the humidification chamber is received by the humidifier base, the first temperature sensor is aligned with an inlet of the humidification chamber and the second temperature sensor is aligned with an outlet of the humidification chamber. 4. The humidification apparatus of claim 1, wherein the back surfaces of the vertically extending wall and the horizontal base are coplanar along a vertical plane. 5. The humidification apparatus of claim 4, wherein the back surfaces of the vertically extending wall and the horizontal base are integrally connected to each other. 6. The humidification apparatus of claim 1, comprising a humidification chamber, wherein the humidification chamber has an inlet and an outlet to allow the gases flow to pass through the humidification chamber from the inlet to the outlet, the humidification chamber configured to hold a volume of water. 7. The humidification apparatus of claim 6, wherein the humidification chamber includes a side wall and a chamfered section extending between a top wall and the side wall, the chamfered section connecting the side wall to the top wall. 8. The humidification apparatus of claim 6, wherein the humidification chamber has a cut-out portion on the humidification chamber to define a ledge, the ledge being between the inlet and outlet, the ledge defining an intermediate wall between a horizontal heater base and a top wall of the humidification chamber. 9. The humidification apparatus of claim 8, wherein the intermediate wall is parallel to the horizontal heater base. 10. The humidification apparatus of claim 1, further comprising a first fluid port and a second fluid port, the first fluid port configured to provide fluid connection between an inlet of the humidification chamber and a gases source, the second fluid port configured to provide fluid connection between an outlet of the humidification chamber and a breathing circuit, wherein the breathing circuit is configured to extend vertically from the humidification apparatus such that at least a portion of the breathing circuit makes contact with the vertically extending wall, the breathing circuit including a temperature sensor at a patient end and a heater wire. 11. The humidification apparatus of claim 1, wherein the vertically extending wall and the horizontal base form a monolithic L-shaped structure when viewed from a side. 12. A humidification apparatus for humidifying a gases flow to be supplied to a patient or other person comprising: a humidifier base having a side profile that includes a horizontal base extending a greater distance in a horizontal direction than in a vertical direction and a upwardly extending wall extending a greater distance in the vertical direction than in the horizontal direction, the upwardly extending wall extending from and perpendicular to the horizontal base, the upwardly extending wall and the horizontal base forming an L- shape, the upwardly extending wall and the horizontal base being integrally formed, the upwardly extending wall having front and back surfaces, the front surface being perpendicular to the horizontal base, the back surface of the upwardly extending wall and a back surface of the horizontal base defining a back surface of the humidifier base, wherein the humidifier base includes a heater plate configured to conduct heat to a humidification chamber,wherein the humidifier base is configured to receive the humidification chamber configured to hold a volume of water and having an inlet and an outlet to allow the gases flow to pass through the humidification chamber from the inlet to the outlet,wherein the upwardly extending wall comprises first and second sensors, the first and second sensors being spaced apart from each other and being located inside the upwardly extending wall, wherein when the humidification chamber is received by the humidifier base, at least one of the first and second sensors is aligned with the inlet or outlet of the humidification chamber. 13. The humidification apparatus of claim 12, comprising the humidification chamber. 14. The humidification apparatus of claim 12, wherein when the humidification chamber is received by the humidifier base, a horizontal heater base of the humidification chamber is urged into contact with the heater plate and a tallest part of the upwardly extending wall is higher than a tallest part of the humidification chamber, the humidification chamber having a cut-out portion on the humidification chamber to define a ledge, the ledge located between the inlet and outlet, the ledge defining an intermediate wall between the horizontal heater base and a top wall of the humidification chamber. 15. The humidification apparatus of claim 12, wherein the first and second sensors are temperature sensors, the second sensor configured to measure a temperature of gases at or near the outlet of the humidification chamber. 16. The humidification apparatus of claim 12, wherein the upwardly extending wall and the horizontal base form a monolithic L-shaped structure. 17. The humidification apparatus of claim 16, wherein the L-shape is visible when viewed from a side. 18. The humidification apparatus of claim 12, wherein the back surfaces of the upwardly extending wall and the horizontal base are coplanar along a vertical plane. 19. The humidification apparatus of claim 18, wherein the back surfaces of the upwardly extending wall and the horizontal base are integrally connected to each other. 20. A humidification apparatus for humidifying a gases flow to be supplied to a patient or other person comprising: a humidifier base including an upwardly extending wall, the upwardly extending wall having front and back surfaces, the back surface of the upwardly extending wall defining at least a portion of a back surface of the humidifier base, wherein the upwardly extending wall comprises first and second sensors, the first and second sensors being spaced apart from each other and being located within the upwardly extending wall,the humidifier base including a heater plate,wherein the first and second sensors are configured to detect a property of the gases flow. 21. The humidification apparatus of claim 20, comprising a humidification chamber, the humidification chamber including a conductive base configured to be heated by the heater plate of the humidifier base, and the and the humidification chamber being received on the humidifier base such that the conductive base of the humidification chamber is brought into contact with the heater plate of the humidifier base. 22. The humidification apparatus of claim 21, wherein the first and second sensors are temperature sensors, the second sensor configured to measure a temperature of gases at or near an outlet of the humidification chamber. 23. The humidification apparatus of claim 20, wherein the humidifier base further comprises a horizontal base, the upwardly extending wall and the horizontal base forming a monolithic L-shaped structure. 24. The humidification apparatus of claim 23, wherein the first sensor is aligned with an inlet port of the humidification chamber and the second sensor is aligned with an outlet port of the humidification chamber, once the humidification chamber is received on the humidifier base.
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이 특허에 인용된 특허 (78)
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