Abstract: It is often important for medical purposes to obtain nucleated fetal cells during pregnancy. For example, the procedures of amniocentesis or chrionic villae extraction are carried out for this purpose. But these methods are invasive, and carry a small but positive risk to the patient, and are complicated to perform. On the other hand, the purpose of my invention is to obtain nucleated fetal cells (fetal nucleated reticulocytes) from maternal blood, which eliminates the need for invasive methods. There are a small number of nucleated fetal red blood cells (reticulocytes) in maternal blood and my invention is a method and apparatus for separating these fetal cells from maternal blood.

Abstract: An apparatus for splitting medicinal tablets which consists of a ridge 12 fused onto or stamped into the surface of card shaped materials. The card 14 can be made of any material with sufficient hardness to permit use of the ridge 12 as a fulcrum to fracture the tablet.A tablet is split using a tablet splitting card by placing a tablet 18 on the ridge 12. Pressure is then applied to the edges of the tablet with two fingers 20. The tablet will split along a line corresponding to the position of the ridge on the card.

Abstract: A weapon simulator that consists of a simulated weapon, a trigger sensor 6 for sensing when the weapon's trigger is pulled, a positional sensor 12 and 16 for determining the position of the simulated weapon relative to a target, and a sensor for determining if the simulated weapon is aimed at the target.