Abstract: A percutaneous mesh anchoring and placement device for use in groin hernia repair wherein trocars are positioned along a patient's abdominal midline and extend into an insufflated pre-peritoneal space, the device being introduced into the pre-peritoneal space through a selected one of the trocars and comprising a tubular sleeve which encases a spirally-wound roll of prosthetic mesh having an anchor captured therein, the anchor having a string attached thereto which extends outwardly through provided orifices in the prosthetic mesh and sleeve whereby the string may be grasped by the surgeon to position and hold the device firmly against the posterior abdominal wall, the sleeve being separable from the mesh and removable from the pre-peritoneal space through a selected one of the trocars, the orifice in the mesh being of suitable size as to permit the passage of a selected one of the trocars therethrough, whereby the prosthetic mesh may be partially unfurled and an edge stapled to the abdominal wall, the anchor

Abstract: A biopsy needle which contains a rotating and axially removable inner cannula housed within an outer cannula in the form of a penetrating needle, the configuration allowing for the removal of multiple tissue specimens with a single needle insertion, with a minimized risk of trauma to surrounding tissue, the distal ends of the outer and inner cannulas containing coextensive open channels, the outer and inner cannulas having operative distal piercing ends defined by converging lateral piercing edges interconnected inferiorly by a semiconical transverse base surface, and superiorly by trailing semicircumferential cutting edges, angled with reference to the needle horizontal axis, the inner cannula having an operative 180.degree.