Gas sampling assemblies
First Claim
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1. A gas sampling assembly comprising:
- a device for sampling a flow of gas;
an inlet tube leading from the sampling device for passing sampled gas from the sampling device;
a sterile gas monitoring unit, including a sterile inlet provided on the monitoring unit and connected to the inlet tube for supplying sampled gas to the monitoring unit;
a sterile material within the monitoring unit for removing particulates from said sampled gas, and a port provided on the monitoring unit, a first sterile closure for closing the sterile inlet on completion of passage of sampled gas to the monitoring unit; and
a second sterile closure for closing the port, the sterile closure being removable to allow a sterile supply to the sterile material of a material indicating the presence of particulates; and
the sterile gas monitoring unit further including a transparent portion on the monitoring unit for viewing the indication produced by the indicating material.
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Abstract
A gas sampling assembly takes a sample of a gas and passes the gas through a monitoring unit. A material within the unit removes particulates from the gas and a port is provided for feeding into the unit a material for indicating the presence of particulates. A transparent portion of the unit allows the indication to be viewed. The unit can be used in sterile packaging apparatus.
18 Citations
21 Claims
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1. A gas sampling assembly comprising:
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a device for sampling a flow of gas;
an inlet tube leading from the sampling device for passing sampled gas from the sampling device;
a sterile gas monitoring unit, including a sterile inlet provided on the monitoring unit and connected to the inlet tube for supplying sampled gas to the monitoring unit;
a sterile material within the monitoring unit for removing particulates from said sampled gas, and a port provided on the monitoring unit, a first sterile closure for closing the sterile inlet on completion of passage of sampled gas to the monitoring unit; and
a second sterile closure for closing the port, the sterile closure being removable to allow a sterile supply to the sterile material of a material indicating the presence of particulates; and
the sterile gas monitoring unit further including a transparent portion on the monitoring unit for viewing the indication produced by the indicating material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A gas sampling assembly for monitoring the contaminant level in a flow of a gas comprising:
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a device for supplying a sample of the gas and including a sample port or outlet for providing the gas sample and a gas monitoring unit fluidly communicating with the sampling device to supply the gas sample to the gas monitoring unit, the gas monitoring unit including a housing having a sterile inlet coupled to the outlet of the sampling device, a sterile interior which receives the gas sample from the sterile inlet, a sterile material within the gas monitoring unit for removing contaminants from the sampled gas, wherein the sterile interior is defined between the sterile inlet and the sterile material, a port for providing a sterile supply of an indicating material to the sterile material to indicate the presence of contaminants, and a transparent portion on the gas monitoring unit for viewing an indication produced by the indicating material. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
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Specification