The implantable pulse generator ( IPG ) and bipolar lead deliver therapy to the lower esophageal sphincter.
2.
Brinker, who is heading the study, said it includes 500 patients with Encor bipolar leads who are called in for regular X-ray examinations.
3.
But unlike the Accufix lead, the J-shaped wire in the Encor bipolar lead was shielded under layers of metal and, the company thought, could not work its way out if it fractured.
4.
Brinker and others began asking whether the defect was restricted to the Accufix leads or whether another lead made by Telectronics Pacing Systems, the Encor bipolar lead, might also have a tendency to fracture.