For taking measurements on fluids, such as biological fluids (e.g. blood and the like), a device is disclosed which is a cylindrical body insertable in a syringe or a similar sampling container and has on the exposed face a set of electrodes or probes which are connected via appropriate electric leads...http://www.google.es/patents/US4339317?utm_source=gb-gplus-sharePatente US4339317 - Device for performing measurements on fluids, directly in the sample container
Device for performing measurements on fluids, directly in the sample container
