Patent ID: 9354152
Filing Date: 2016-05-31
CPC Classification: G01N,Y10T

Claim Text:
1. A microfluidic rheometry apparatus for use in microfluidic rheometry, the apparatus comprising: a block of substantially rigid material having an external surface and at least a first internal flow channel, the first internal flow channel being arranged inside the block and substantially in a plane and the block further comprising a plurality of holes, each hole communicating with the first internal flow channel at a respective position along the first internal flow channel and extending from the respective position to said external surface so as to provide access to the first internal flow channel from the external surface, the plurality of holes comprising a first hole communicating with a first said position, for connection to pumping means to drive fluid flow along said first internal flow channel, a second hole communicating with a second position and in which a sensor may be located to measure a property of fluid at the second position, and a third hole, communicating with a third position, adapted to receive a sensor to measure a property of fluid at the third position; wherein at least one of the plurality of holes comprises a first portion adjacent the first internal flow channel and a second portion adjacent the external surface, the first portion providing a constriction between the first internal flow channel and the second portion.