LONDON (AP) — Britain's High Court has dismissed a lawsuit against an IVF clinic by a man who says his ex-wife forged his signature to conceive a child using an egg fertilized with his sperm.

A judge said the clinic hadn't been negligent, but slammed the "desperate, dishonest" behavior of the man's former wife.

The man, identified only as ARB, says his ex-wife forged his name on a consent-to-thaw form for an embryo the couple had frozen before their split.

The embryo was transplanted at a London clinic in October 2010 and a daughter born the following summer.

ARB sued, seeking damages to cover the cost of the child's upkeep.

Judge Robert Jay ruled in the clinic's favor Friday but said his judgment was "a complete personal and moral vindication for ARB."