Abstract: A surgical lifter adapted to engage and lift the skin from the underlying tissue to create a work space in which a surgeon can operate, includes an expandable lifter head comprising at least two blades pivotally connected for relative pivotal movement between a deployed position in which the blades are fanned out, and a collapsed position in which the blades overlap one another; and a lifter shaft adapted to extend through the skin to engage the lifter head inside the body.

Abstract: A method of conducting minimally invasive surgery includes the steps of making a primary incision; importing at least one surgical instrument head through the primary incision; making at least one secondary incision, smaller than the primary incision and the cross-section of the surgical instrument head, for a handle; extending the distal end of the handle through each secondary incision; attaching one of the surgical instrument heads to the distal end of the handle; manipulating the surgical instrument head with the handle to which it is attached; detaching the surgical instrument head from the handle; removing the surgical instrument head through the primary incision; and withdrawing the distal end of the handle from the secondary incision.