LINX Reflux Management System Implant, Johnson and Johnson
LINX System
IMPORTANT NOTE: It's important to know which LINX device a patient has prior to MRI. Patients implanted with the 0.7T device cannot undergo testing in a magnetic resonance imaging (MRI) system above 0.7T. Patients with 1.5T device cannot exceed 1.5T. Patients implanted with LINX PRIOR to May 22, 2015 have been implanted with the 0.7T device. If you were implanted with LINX AFTER May 22, 2015 please check your implant card: Blue card for 1.5T device; White card for 0.7T device.

https://www.jnjmedicaldevices.com/en-US/service-details/LINX-diagnostic-imaging?fbclid=IwAR1-gr_C7cEeZGI_BjbYG9muXsG3LY2lUYASH0y3wc_Z328WR7z58HLuPsE