Medtronic has publicly announced that it received an official warning letter from the US Food and Drug Administration (FDA) in regard to quality control issues at its diabetes management division in Northridge, California. The MiniMed 630G and MiniMed 670G insulin pumps had to be recalled because of potentially life-threatening dosage problems.
https://www.notebookcheck.net/Life-threatening-MiniMed-600-Series-Insulin-Pump-dosage-issues-lead-to-FDA-warning-letter-over-quality-control.585553.0.html