Abstract: A system and method allows workers on a jobsite to track their use and/or location of tools. The system can include a plurality of barcodes that can be placed directly on each of the tools to be tracked. The system further includes a mobile application that can operate on a mobile electronic device, such as a smart phone, that can scan the barcode, thus assigning the tool to a specific worker on the jobsite. A database can be incorporated on a central computer, such as a computer server, to relate each barcode to each tool and track which users have signed out and/or signed in each tool. In some embodiments, such as on large jobsites, the system may track, via GPS, for example, the location of the electronic device that has signed out the tool.

Abstract: A device for retrograde hole opening through tissue has a member elongate on an axis with a cross section shaped to insert axially through external tissue. A distal and a proximal end on the member respectively enter the tissue during placement and remain outside the tissue for control. A tip at the distal end has a deployable tissue divider with one or more tissue parting elements and each has a splitter. The tissue parting elements are located within the cross sectional dimensions of the member in a storage position and are movable relative to the tip for placement in an exposed position relative to the tip when shifted from storage so that the splitter thereof splits tissue during retrograde extraction along the axis and contact with tissue. Linkage between the proximal end and the deployable tissue divider retains each of the tissue parting elements with its splitter exposed.

Abstract: A device for retrograde hole opening through tissue has a member elongate on an axis with a cross section shaped to insert axially through external tissue. A distal and a proximal end on the member respectively enter the tissue during placement and remain outside the tissue for control. A tip at the distal end has a deployable tissue divider with one or more tissue parting elements and each has a splitter. The tissue parting elements are located within the cross sectional dimensions of the member in a storage position and are movable relative to the tip for placement in an exposed position relative to the tip when shifted from storage so that the splitter thereof splits tissue during retrograde extraction along the axis and contact with tissue. Linkage between the proximal end and the deployable tissue divider retains each of the tissue parting elements with its splitter exposed.