Abstract: A fluid collection device has a collection vial with a reservoir chamber for receiving a fluid sample. An elongated expresser is disposed within the collection via, which includes a fluid permeable base enabling passage of fluid sample into the reservoir chamber. A fluid test card is supported by an expresser bottom flange within the collection vial and a plunger is provided for compression of a swab saturated with fluid specimen into the reservoir chamber. A cap is provided for engaging the collection vial in order to seal the compressor, fluid test card, compressed swab, and plunger within the collection vial.

Abstract: A superhard compact having an improved superabrasive-substrate interface region design for use in drilling bits, cutting tools and wire dies and the like. This compact is designed to provide an interface design to manipulate residual stresses to enhance the working the strength of the compact. The compact is provided with a network on interface features that share common walls to form cavities.