Medtronic plc is strengthening its pain management portfolio with its $650 million move to buy SPR Therapeutics Inc. and bring the company’s peripheral nerve stimulation (PNS) system for sustained pain relief into its neuromodulation offering. The deal marks Medtronic’s third tuck-in deal so far this year, following its $585 million purchase of Cathworks Ltd. and $550 million acquisition of Scientia Vascular Inc., and is also a sign of the momentum in M&A activity in the medtech sector with othe