Transcutaneously adjustable fluid-filled implants

A transcutaneously-adjustable implant, comprising:

• an elongate, flexible tubular body, having a proximal end, a distal end and a cavity;
• a plurality of sheets partially bonded together to form a layer of the implant;
• a filling lumen defined by a space between an area where the sheets are not bonded together;
• and
• a self-sealing membrane with first and second ends disposed within the filling lumen and bonded at the first and second ends to the layer of the implant;
• wherein the membrane further comprises:
• a first layer comprising a fabric, the fabric comprising:
• a first plurality of yarn strands positioned in a first direction;
• a second plurality of yarn strands positioned in a second direction, wherein said first and second plurality of yarn strands intersect to form a matrix pattern with cells defined by free spaces between yarn strands;
• a first elastomeric material configured to fill the cells as well as form a coating over the first and second plurality of yarn strands;
• and
• a second layer comprising a second elastomeric material, wherein the second elastomeric material has a lower durometer than the first elastomeric material.