Med-tech happenings, including deals and partnerships, grants, preclinical data and other news in brief: 3M Littmann Stethoscopes, Assure Tech, Aurora Spine, Bc Platforms, Beckman Coulter, Biosig Technologies, Bruker, Cerus Endovascular, Emurmur, Fulgent Genetics, Htg Molecular Diagnostics, Ingenion Medical, Inivata, Johnson & Johnson, Medsential, Misonix, Natera, Oncimmune, Paxman Coolers, Physiomics, Pra Health Sciences, Pwnhealth, Research Instruments, Roche, Tabula Rasa Healthcare.