After participating in the foundation of a school and the Santa Tereza Hospital in Petrópolis, and the Holy House of Juiz de Fora, they went to São Paulo to help the Congregation of the Sisters of Saint Catherine of Alexandria, Virgin and Martyr to establish an ambulatory to attend the demand of sick people who sought the institution.
With the support of Friar Dom Miguel Kruse (1864-1929), abbot of the St Benedict's Monastery, Sister Maria Beata Heinrich (1867-1941) founded a service to assist the sick in 1903.
[4][5] Due to the growth in the number of patients, Sister Heinrich turned to Father Kruse, who got the support of the Austrian physician Walter Seng (1873-1931) and, together, they contacted the president of the state of São Paulo, Jorge Tibiriçá, and presented the project of a sanatorium (hospital) to attend the increasing number of sick people who were seeking treatment.
[5][4][6][7] In a short time, the sanatorium became (along with Humberto I) one of the most frequented hospitals in the city of São Paulo, due to its privileged location on Paulista Avenue.
[5] Currently it has 324 hospital beds (85 of which in ICU), an Emergency Room, a 16-room surgical center, ICUs specialized in cardiology, general and multidisciplinary, neurology and pediatrics.