Abstract: A spinel cord stimulator lead for placement in the epidural space of a human or animal subject. The spinal cord stimulator lead includes a biocompatible body portion defining an elongate shaft, wherein at least a portion of which is flexible; at least one electrode positioned along the shaft; a lumen extending through at least a portion of the shaft for carrying a fluid; and a distensible balloon positioned around a distal end of the shaft and in fluid communication with the lumen. Preferably, the balloon is a cuffed balloon that expands radially outwardly from at least a portion of the shaft's distal end. The spinal cord stimulator lead can also include a second lumen for discharging a fluid directly to a tissue obstruction and a stylet for guiding the stimulator lead into and through the epidural space. The spinal cord stimulator lead can have the form of a percutaneous lead or a surgical lead.

Abstract: A percutaneous lead with at least one electrode has a lumen or fluid canal extending the length of its biocompatible body. The lumen aids in accurately placing the percutaneous lead by allowing a practitioner to inject fluid, such as a saline solution, through the canal to displace fat, veins, adhesions, or connective tissues that prevent the passage or accurate placement of the lead in the epidural space. Optionally, an inflatable balloon is attached at the distal end of the percutaneous lead to further aid in displacing connective tissue.