Apparatus for analysis of absorbed gases
AssigneeThe Medishield Corporation Limited
InventorsBrian Goodwin, Peter Middleton
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Abstract
A device in the form of a flexible intravascular probe for use in analyzing absorbed blood gases includes a gas-permeable membrane 10 comprising two layers in intimate contact and supporting each other. The permeability of the second layer 6 is significantly less than that of the first 5, and provides the desired permeability of the membrane 10 as a whole. The first layer 5 provides the desired mechanical compatibility and other properties of the membrane 10.
Claims4
A method of manufacturing a device for use in the analysis of absorbed gases in liquids, comprising the steps of taking a flexible plastics material tube with an aperture in its wall;
- sheathing the exterior surface of at least that portion of the tube which includes said aperture with a layer of bio-compatible gas-permeable material;
- and coating the interior surface of that area of said sheathing layer which overlies said aperture with a thin layer of gas-permeable material, the permeability of which is significantly less than that of the sheathing layer.
Dependencies are inferred from the claim text.