Product Placement Blog ➞ 3M3M Littmann Stethoscope Used by Cast Member Nick Gehlfuss as Dr. Will Halstead in Chicago Med S06E09 “For the Want of a Nail” (2021)March 18, 2021 Sergey TV Show Hi! On Thursday, March 18, I analyzed a TV Show and product placement was spotted: 3M Littmann Stethoscope Used by Cast Member Nick Gehlfuss as Dr. Will Halstead in Chicago Med S06E09 “For the Want of a Nail” (2021).Here are 5 image(s) below: