Implantable Nuclear Prosthesis

A kit for implanting a nucleus replacement device, comprising:

• a spinal implant device comprising:
• an inner fillable enclosure having a proximal end with a proximal opening and a distal end with a distal opening;
• an outer fillable enclosure having a proximal end and a distal end, wherein the proximal ends of the inner and outer fillable enclosures are coupled together and the distal ends of the inner and outer fillable are coupled together so that the outer fillable enclosure encapsulates the inner fillable enclosure;
• a distal plug for sealing the distal opening in the distal end of the inner fillable enclosure;
• and
• a proximal plug for sealing the proximal opening in the proximal end of the inner fillable enclosure, the proximal plug having an access lumen for providing access to the inner fillable enclosure and a receptacle with an aperture for providing access to the outer fillable enclosure, wherein the access lumen for providing access to the inner fillable enclosure is configured to remain open after implantation;
• and
• an inflation stylus adapted to mate with the proximal plug, wherein the inflation stylus comprises:
• an adjustable first lumen for movably extending through the access lumen to deliver and remove fluid from the inner enclosure;
• and
• a second lumen for delivering fluid to the outer enclosure.