UPDATE 1-St Jude says Durata lead wire hurt by external abrasion
June 22 (Reuters) - St. Jude Medical Inc said its own internal investigation showed damage to one of its Durata debfibrillator lead wires that sparked investor concern last week was not caused by the same type of abrasion which forced the recent recall of its older Riata leads.
The Riata leads were recalled after the silicone coating around the wires eroded at a higher than expected rate. But the Durata lead abrasion was instead caused by scraping against another object within the body.
Defibrillators are implanted devices that use a brief electric shock to the heart to restore normal heartbeat.
Shares of the medical device maker fell 6 percent on June 12 after a physician report filed with U.S. regulators said a Durata lead wire had failed in a single patient -- raising fears of another product recall.
St. Jude late on Friday said the Durata lead was removed from a patient at a Florida hospital and then examined there by one of the company's senior lead investigators.
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