for the positioning of closure device 10 after it has been pushed out of fossa 56 as shown in fig1 a and 13b if the first wire head handle 46 a is retracted relative to second wire head handle 46 b then distal fossa 56 bends towards handle 46 a likewise as shown in fig1 a and 14b if the second wire head handle 46 b is retracted relative to first wire head handle 46 a then distal fossa 56 bends towards handle 46 b the orientation of fossa 56 and the direction it turns to when handle 46 a or 46 b is retracted can be changed by rotating the wire head handles 46 a and 46 b together after closure device 10 is pushed out of fossa 56 it responds in like manner bending toward wire head handle 46 a when handle 46 a is retracted and toward handle 46 b when handle 46 b is retracted it can be rotated and the direction that it bends when wire 46 a or 46 b is pulled can be determined by rotating the handles 46 a and 46 b together this freedom in positioning is important during the implantation.