Surgical implant
A surgical implant ( 20 ) comprises a flexible basic structure ( 22 ) having a face and a plurality of resorbable film pieces ( 26 ) attached to the face of the basic structure ( 22 ). Each film piece ( 26 ) comprises a plurality of solid protrusions ( 28 ) emerging from the respective film piece ( 26 ) is a direction away from the basic structure ( 22 ).
1. A process of manufacturing a surgical implant the implant comprising a flexible basic structure having a face and a plurality of resorbable film pieces attached to the face of the basic structure, wherein each film piece comprises a plurality of protrusions emerging from the respective film piece in a direction way from the basic structure, characterized by the steps of:
providing a mold containing an array of cavities, each cavity having the shape of one protrusion,
filling the mold with a fluid material forming the film pieces and the protrusions according to a pattern defining the shapes and locations of the film pieces,
hardening the fluid material,
attaching the film pieces to a basic structure, with the protrusions pointing away from the basic structure, and
removing the mold;
wherein the pattern defining the shapes and locations of the film pieces is determined by a mask placed between the basic structure and the material to be filled in the mold and the process further characterized by the steps of providing a layered assembly comprising, in this order: the mold, a surgical mesh as the basic structure, the mask, a sheet of material for the film pieces having a lower melting point than the surgical mesh, a flexible plate device,
heating the sheet of material to a temperature higher than its melting point and lower than the melting point of the surgical mesh,
pressing the mold and the plate device towards each other, whereby the material for the film pieces is transferred through the mask into the mold and embeds the surgical mesh, and
lowering the temperature and removing the mold.
2. The process according to claim 1 , characterized in that the mold is flexible and comprises at least one of the following materials: flexible material, silicone, polyurethane, natural rubbers, synthetic rubbers.
3. The process according to claim 1 , characterized in that the flexible plate device has one of the following properties: comprising a closed surface being designed as a second mold, which is flexible and contains an array of cavities, each cavity having the shape of one protrusion.