Becton Dickinson's C.R. Bard Inc on Friday won a ruling from a U.S. appeals court reinstating three patents related to its PowerPort devices for delivering repeated medical injections.

Lawyers say Bard's PowerPort devices, which pump intravenous chemotherapy and other fluids injected into the bloodstream, could generate up to 10,000 lawsuits.

A federal appeals court on Tuesday overturned a mid-trial win for medical-device maker AngioDynamics Inc in a patent infringement lawsuit by Becton Dickinson’s Bard over a vascular access port ...