Respiratory gas humidification system
First Claim
1. A humidification apparatus comprising:
- a humidification unit comprising an inlet and an outlet, the inlet of the humidification unit configured to be connected to an outlet of a pressurized gas source, and the outlet of the humidification unit configured to be connected to a delivery component;
a flow passage being defined between the pressurized gas source and the delivery component;
a wall defining at least a portion of the flow passage and comprising an aperture configured to receive a sensor such that the sensor extends through the aperture and is positioned within the flow passage in use, the sensor comprising a sensing portion and configured to sense a gas property within the flow passage; and
a barrier secured to the wall and pneumatically sealing the aperture, at least a portion of the sensor being removably disposed within the barrier such that the barrier isolates the sensor from the flow passage, wherein the barrier is configured to stretch upon insertion of the sensor due to contact between the sensor and the barrier so that the sensor extends through the aperture into the flow passage.
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Accused Products
Abstract
A humidification system comprises a first sensor and a second sensor. The first and second sensors are adapted to sense flow characteristics within the system. The first and second sensors are isolated from the flow by barriers formed by respective first and second sealing members. The sealing members extend through apertures formed in the system and have a portion that contacts the sensing elements of the respective first and second sensors. A cartridge can hold the sensors and provide repeatable penetration depths into a flow passage of the system. A medical tube has a composite structure made of two or more distinct components that are spirally wound to form an elongate tube. One component can be a spirally wound elongate hollow body; the other component can be an elongate structural component spirally wound between turns of the spirally wound hollow body.
82 Citations
25 Claims
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1. A humidification apparatus comprising:
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a humidification unit comprising an inlet and an outlet, the inlet of the humidification unit configured to be connected to an outlet of a pressurized gas source, and the outlet of the humidification unit configured to be connected to a delivery component; a flow passage being defined between the pressurized gas source and the delivery component; a wall defining at least a portion of the flow passage and comprising an aperture configured to receive a sensor such that the sensor extends through the aperture and is positioned within the flow passage in use, the sensor comprising a sensing portion and configured to sense a gas property within the flow passage; and a barrier secured to the wall and pneumatically sealing the aperture, at least a portion of the sensor being removably disposed within the barrier such that the barrier isolates the sensor from the flow passage, wherein the barrier is configured to stretch upon insertion of the sensor due to contact between the sensor and the barrier so that the sensor extends through the aperture into the flow passage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification