New England Sinai Hospital in Stoughton, MA, which provides long-term care to the seriously ill, stopped admitting new patients after public health officials found that staff were not properly caring for patients' wounds and following infection control procedures, were improperly restraining patients, and had mistakenly placed an intravenous line in a patient's foot. State health officials suggested the hospital, which has 212 beds and 2,000 admissions a year, close to new patients, and New England Sinai executives agreed, said Alice Bonner, director of the Bureau of Health Care Safety and Quality.