General Surgical patent claim against Guidant's Origin:

Executive Summary

Origin Medsystems, a division of Guidant, has infringed a patent concerning balloon dissection technology, according to General Surgical Innovations. GSI has filed suit claiming that Origin has infringed a GSI patent concerning the minimally invasive sequential dissection of tissue planes along elongated body structures, using balloon inflation techniques. This is the second legal action from GSI against Origin over proprietary technology in this area.