C-Arm Rental in Dallas, TX. The OEC 9800 C-Arm rental is the newest model of the OEC line offered,and is a great unit for practices with bigger budgets that need a c-arm capable of performing basic fluoro procedures. Heartland Medical Sales and Service is a distributor of Used and Refurbished C-Arm Imaging System rentals in Dallas, Fort Worth, Highland Park, University Park, Texas.