CooperSurgical Caused Embryos’ Demise, New California Suit Says

CooperSurgical Inc. sold a defective medical product that “turned out to be toxic to human embryos, eggs, and sperm,” according to a complaint filed by two Los Angeles couples Thursday.

The couples—the first identified as A.B. and C.D, and the second identified as E.F. and G.H.—sued the medical device maker in the California Superior Court, Los Angeles County, alleging that a solution in which the embryos were cultured had, instead, led to their destruction.

The company wasn’t able to talk about the litigation, a spokeswoman for CooperSurgical said. But “quality and compliance are fundamental parts of the value” it ...