The present invention discloses an inflatable contour-balloon useful in minimal invasive and/or open surgery. The inflatable contour-balloon positioned in the contour of a mesh and/or a patch and/or a net. The inflatable contour-balloon is adapted to spread and/or deploy the mesh and/or the patch and/or the net in the abdominal cavity and/or pre-peritoneal and/or space and/or hollow body organs and/or natural and/or artificial orifices and/or spaces and/or post operative spaces. The present invention also discloses an elongate open-bored applicator (EOBP) adapted to spread and/or deploy a mesh and/or a patch and/or a net. The EOBP is useful in minimal invasive surgery. The EOBP has a distal portion that is insertable into the abdominal cavity and/or pre-peritoneal and/or space arid/or hollow body organs and/or natural and/or artificial orifices and/or spaces and/or post operative spaces; and a proximal portion that remains outside the body. The EOBP comprises: (a) at least one inflatable contour-balloon; (b) at least one inflatable dissection balloon. The inflatable contour-balloon and the inflatable dissection balloon are adjustable and located at the distal portion; and, (c) at least one actuating means located at the proximal portion. The actuating means is in communication with the inflatable contour-balloon and the inflatable dissection balloon. The actuating means is adapted to provide the inflatable contour-balloon and the inflatable dissection balloon with independent activation and/or de-activation.