Dry test strip with controlled flow and method of manufacturing same
View Patent ↗A dry test strip assembly includes: a carrier base having a test port and a well adapted for receiving a dry test strip element, and a cover having a sample opening. The cover can be snapped onto the base with the sample opening aligned over the test port and with a test strip element compressed between the base and cover. A maximum dry test strip compression stop controls the maximum compression on the dry test strip, and a minimum dry test strip compression stop controls the minimum compression on the dry test strip. A rib between two test ports prevents fluid flow in the dry test strip element from one side of the rib to another, thereby separating the test strip element into a plurality of separate fluid compartments. A manufacturing system efficiently assembles the dry test strip assembly without handling by humans.
1. A carrier system for a diagnostic dry test strip for use in measuring an analyte in a fluid sample, said carrier system comprising:
a carrier base including a test strip well configured to receive a dry test strip and a test port communicating with said well and enabling said test strip to be observed;
a cover having a sample opening; and
engagement elements on said carrier base and said cover configured to engage said cover to said carrier base with said sample opening aligned over said test port and said dry test strip compressed between said carrier base and said cover;
wherein said engagement elements include: a maximum dry test strip compression stop controlling the maximum compression on said dry test strip; and a minimum dry test strip compression stop controlling the minimum compression on said dry test strip, the engagement elements including a stop member, the minimum dry test strip compression stop being a lip that extends from an end of the stop member, the maximum dry test strip compression stop being a landing pad that extends from the stop member, the minimum dry test strip compression stop and maximum dry test strip compression stop being separated on the stop member such that they form a hook-shaped end, wherein the engagement elements include an attachment opening, the opening including an edge that engages the hook-shaped end between the lip and the landing pad.