BUSINESS
April 28, 1992
Hancock-Jaffe Laboratories, a developer of biological implants for the cardiovascular, orthopedic and plastic surgery markets, has entered into a joint-venture agreement with a Minnesota company. St. Jude Medical Inc. of St. Paul made the announcement Monday, saying the deal will allow the companies to combine their research in developing a heart valve made from tissue rather than a non-biological material. St.