Abstract: A compact and versatile mixed reality simulator system and methods may comprise a mixed reality processing engine and a haptic control engine to control a linear electromagnetic motor (LEM) of 1 degree of freedom made of a handheld instrument replicate and a trocar-like instrument hosting duct. The compact and versatile mixed reality simulator system may comprise multiple interchangeable instrument hosting ducts and handheld instrument replicates and the mixed reality processing engine may automatically detect, from sensors, which instrument replicate has been inserted in which duct. The mixed reality processing engine may detect a virtual contact between the handheld instrument replicate and a virtual object in a mixed reality scenario.

Abstract: An apparatus for dispensing particles in free-flying liquid drops includes a fluid chamber fluidically coupled to a nozzle, a sound source configured to generate, in the fluid chamber, an acoustic field by which particles in a liquid in the fluid chamber may be aligned in an arrangement, and a drop-on-demand mechanism configured to, at a selected point in time, selectively dispense from the nozzle an individual liquid drop containing one or several particles.

Abstract: An apparatus for dispensing particles in free-flying liquid drops includes a fluid chamber fluidically coupled to a nozzle, a sound source configured to generate, in the fluid chamber, an acoustic field by which particles in a liquid in the fluid chamber may be aligned in an arrangement, and a drop-on-demand mechanism configured to, at a selected point in time, selectively dispense from the nozzle an individual liquid drop containing one or several particles.

Abstract: An acoustofluidic system comprises a substrate (10) having an essentially rectangular recess with side walls (33), wherein the recess provides a microfluidic channel (30) containing a fluid with droplets (31), and at least one electromechanical transducer (20) attached at the substrate (10) adapted to excite an acoustic field in said channel (30). The side walls (33) are hard acoustic walls having a high specific acoustic impedance mismatch to said fluid in the channel (30) and the transducer (20) is configured to excite bulk acoustic waves (BAW) as standing waves (32) of a predetermined harmonic resonance mode between said hard acoustic side walls (33), which couple into the fluid in the channel (30) exerting acoustic pressure on droplets (31) suspended in said fluid towards the pressure nodal line, pressure antinode line or centerline of the standing wave (32).