A Bend woman is suing St. Charles Medical Center for not properly disinfecting a scope during several patient colonoscopies last September. The woman is one of 18 patients that the hospital admits underwent the procedures with equipment not properly disinfected during two days in September 2010. The hospital discovered the mistake and sent all the affected patients letters notifying them. They are also paying for testing to make sure these patients are not infected with STDs or HIV, though doctors say the risk is low.   Jennifer Coglin is the attorney for the patient suing the hospital: “All I know it did not undergo disinfection process. I don't care that 5 of 6 steps were taken, if the sixth step wasn't disinfection.” Pam Steinke is the Chief Quality Officer for the hospital. “The scopes were cleaned but not disinfected. They were cleaned manually disinfected, but hadn't been through the final cycle.” The lawsuit is seeking a quarter of a million dollars in emotional damages and $20-000 in medical expenses.