The invention relates to an implantable prosthetic device, a patch, for the repair of connective tissue in an animal or a human. In one embodiment, a biocompatible repair patch (10) for repair of human or animal tissue is disclosed which comprises a tensile load-bearing component in the form of a pre-formed array (13) of a looped configuration in a desired pattern and having at least one return end, said array being formed of an elongate filamentary material; and a base layer (11) of non-woven fibrous material. The pre-formed array is attached to one surface of the base layer so that the pre-formed array retains its configuration while being handled during surgery. The at least one return end serves to receive a suture or the like to attach the patch to tissue. The fibres of the base layer are entangled with the looped configuration so as to attach the array to the base layer and substantially to maintain the desired pattern.