The U.S. Food and Drug Administration cleared a modified version of a device manufactured by Olympus Corp. that was linked to so-called superbug infections. As a result of the approval, the camera and medical-equipment maker plans to voluntarily recall the device and expects all 4,400 in the U.S. to be repaired with the modifications by August. The device, known as a duodenoscope, is snaked down the throat of a patient into the top of the small intestine and is used in diagnostic and treatment procedures related to cancer and other conditions. Between procedures the devices were disinfected and cleaned, but they still sometimes spread antibiotic-resistant infections from patient to patient. In March, Olympus distributed new cleaning instructions. [Subscription Required]