TxRx 15Ch Knee Coil 3T QED part number:Q7000008 Siemens Model # 10185460
Unintended ferrous material may be present within the pushbutton assembly of Siemens Knee and Siemens Extremity Coils.
Worldwide distribution - US in the states: NC OUS: Germany
https://www.accessdata.fda.gov/scripts/ires/index.cfm?Product=Z-0031-2020