Redwood City-based Proteus Digital Health, a developer of software which connects patients, families, and caregivers, has raised $120M in a new funding, the company said Monday. The company said the funding came from major, new institutional investors. As part of the investment, Johnathan Cymonds, Chairman of HSBC Bank Plc, joins the company's board. Names of the investors were not announced. Proteus said the investors were based in the United States, Europe and Asia.