The star was filming 8 Simple Rules in September 2003 when he was rushed to the hospital after suffering from vomiting and chest pains--and died hours after entering the emergency room.
Yasbeck and her five children already settled for $12.5 million with the California hospital in which Ritter died--but now they are battling two New York doctors who have submitted subpoenas arguing that the hospital's medics were not negligent.
On Monday, Moses Lebovits, an attorney for the family, told a Los Angeles court the doctors failed to order a chest X-ray for Ritter--a move that would have discovered the torn aorta.
However, attorneys for radiologist Matthew Lotysch and cardiologist Joseph Lee told jurors that Ritter arrived at the hospital in grave condition and that they did everything they could to keep him alive.
"At that time there was nothing that could have been done to save his life."
The case continues.
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