Abstract: A retrograde cutting instrument and method of retrograde drilling using such an instrument. A method of forming a socket includes providing a retrograde cutter, inserting the cutter into a joint with a blade of the cutter in a straight position, pivoting the blade to a non-straight flip position, locking the blade in the flip position, and retrograde drilling a socket using the blade in the flip position.

Abstract: A retrograde cutting instrument and method of retrograde drilling using such an instrument. A method of forming a socket includes providing a retrograde cutter, inserting the cutter into a joint with a blade of the cutter in a straight position, pivoting the blade to a non-straight flip position, locking the blade in the flip position, and retrograde drilling a socket using the blade in the flip position.

Abstract: A flip retrograde cutting instrument and method of retrograde drilling using such an instrument. A method of forming a socket includes providing a flip retrograde cutter, inserting the cutter into a joint with a blade of the cutter in a straight position, pivoting the blade to a non-straight flip position, locking the blade in the flip position, and retrograde drilling a socket using the blade in the flip position.

Abstract: A flip retrograde cutting instrument and method of retrograde drilling using such an instrument. A method of forming a socket includes providing a flip retrograde cutter, inserting the cutter into a joint with a blade of the cutter in a straight position, pivoting the blade to a non-straight flip position, locking the blade in the flip position, and retrograde drilling a socket using the blade in the flip position.

Abstract: A flip retrograde cutting instrument and method of retrograde drilling using such an instrument. A method of forming a socket includes providing a flip retrograde cutter, inserting the cutter into a joint with a blade of the cutter in a straight position, pivoting the blade to a non-straight flip position, locking the blade in the flip position, and retrograde drilling a socket using the blade in the flip position.

Abstract: A method and apparatus for arthroscopic unicompartmental knee surgery which include a femoral component and a tibial component. The femoral component is installed in a trough in the femoral condyle formed by using a template, a plurality of drill pins and a plurality of corresponding cutters. The template is aligned with the curvature of the femoral condyle, the two drill pins are passed through the template and drilled into the femur, cutters are advanced over the corresponding drill pins to make holes in the femur, and the remaining hourglass shaped bone is removed with osteotomy pliers to form the trough. A tibial socket for the tibial component is formed in a retrograde manner.

Abstract: An instrument for retrograde cutting of sockets or tunnels in bone for arthroscopic tenodesis. A retrograde cutter is used to form a recipient site socket from the inside out, i.e., using a retrograde technique, with minimal incisions of distal cortices and reduced intraarticular bone fragmentation of tunnel rims. The retrograde cutter is provided with a cutting blade that is configured to engage the shaft of the instrument and to lock onto the shaft.

Abstract: A flip retrograde cutting instrument and method of retrograde drilling using such an instrument. A method of forming a socket includes providing a flip retrograde cutter, inserting the cutter into a joint with a blade of the cutter in a straight position, pivoting the blade to a non-straight flip position, locking the blade in the flip position, and retrograde drilling a socket using the blade in the flip position.

Abstract: An instrument for retrograde cutting of sockets or tunnels in bone for arthroscopic tenodesis. A retrograde cutter is used to form a recipient site socket from the inside out, i.e., using a retrograde technique, with minimal incisions of distal cortices and reduced intraarticular bone fragmentation of tunnel rims. The retrograde cutter is provided with a cutting blade that is configured to engage the shaft of the instrument and to lock onto the shaft.

Abstract: A method and apparatus for arthroscopic unicompartmental knee surgery which include a femoral component and a tibial component. The femoral component is installed in a trough in the femoral condyle formed by using a template, a plurality of drill pins and a plurality of corresponding cutters. The template is aligned with the curvature of the femoral condyle, the two drill pins are passed through the template and drilled into the femur, cutters are advanced over the corresponding drill pins to make holes in the femur, and the remaining hourglass shaped bone is removed with osteotomy pliers to form the trough. A tibial socket for the tibial component is formed in a retrograde manner.

Abstract: An expanding plug for tendon fixation features two resilient arms configured to expand radially to achieve interference fixation of a graft tendon inside of a bone tunnel. The tendon graft is assembled to the expanding bolt and situated within a bone tunnel. Passing suture is used to pull the expanding plug into the tunnel in a first direction. Pulling the expanding plug in a second direction (which is opposite the first direction) deploys the resilient arms and places the expanding plug in the deployed configuration.

Abstract: A convertible sewing machine bed lid and hinge arrangement includes a lid that may be pivoted downwardly to expose an elongated arm for sewing tubular garments. The lid has depending pivot bosses and the bed has a web casting that includes legs connected to the bosses by the hinge pins fitted into apertures in the bosses and slots in the legs. A pair of leaf springs held by projections that interlock with the casting entrap the pins within the slots and urge them toward a closed extremity of the slots. Latching projections on the free side of the lid are resiliently forced into recesses in the arm to retain the lid in a horizontal position to provide an expansive work supporting surface.

Abstract: A sewing machine handle is provided with depending legs which terminate in eccentric pads that are insertable in holes in the casing of the machine at the top of the bracket arm and are caused to engage the inside of the casing and support the machine when the handle is lifted.