Patent ID: 8398590
Filing Date: 2013-03-19
Classification: A61M,G01D

Abstract:
1. A device for indicating the presence of fluid in a portion of an infusion line, comprising: a housing positioned along the infusion line and having a hollow interior arranged for receiving a flow of fluid when in use; a member having an exterior surface and being positioned within the interior of the housing and inaccessible to a user of the housing when the housing is in use; a microporous membrane that exhibits a first visual characteristic when dry and that exhibits a second visual characteristic when wet with the fluid, the microporous membrane being positioned within the interior of the housing and inaccessible to a user of the housing when the housing is in use, the microporous membrane covering at least a portion of the exterior surface of the member; and wherein the exterior surface of the member includes indicia that, upon the microporous membrane becoming wet with the fluid flowing into the hollow interior of the housing, becomes visible from an exterior of the housing through both the microporous membrane and the housing, the housing being made of a material through which a change in appearance of the microporous membrane is visible.