A Bridgewater man was taken by helicopter to Brigham and Women’s Hospital in Boston with serious injuries after crashing his minivan into a two-family house early Saturday, officials said. Bridgewater police confirmed that Norman Melendy, 45, was driving a 2000 Dodge Caravan when the vehicle veered off Route 28 onto property on Main Street around 7 a.m. “It appears that the operator had some medical condition that caused him to get in the accident,” said Bridgewater Police Lieutenant Thomas Schlatz. Melendy was in critical condition, according to a hospital spokesman. Melendy drove through a white picket fence before hitting and damaging part of the house’s siding, according to Bridgewater Fire Captain Joseph Cairns. Residents of the home, including two young children, were not injured, Cairns said.