| Amedica Corporation Patent applications |
| Patent application number | Title | Published |
|---|
| 20120123555 | Ceramic-Ceramic Articulation Surface Implants - A prosthesis for articulation (e.g., hip or joint prosthesis) is provided, which includes a pair of articulation components respectively defining a pair of articulation surfaces movably engageable with each other. In some embodiments, each of the articulation surfaces is formed from a biocompatible ceramic (e.g., doped silicon nitride ceramic) having a flexural strength greater than about 700 Mega-Pascal (MPa) and a toughness greater than about 7 Mega-Pascal root meter (MPam | 05-17-2012 |
| 20120123545 | Total disc implant - A total disc implant (TDI) is provided for total replacement of a spinal disc or discs in a human patient or other mammal, wherein the TDI is designed to maintain a substantially full range of natural motion (ROM) following implantation. The TDI generally comprises, in one preferred form, upper and lower end plates for affixation to adjacent vertebral bodies, with an intervening insert disposed therebetween. The end plates each include elongated part-cylindrical surfaces oriented generally perpendicular to each other, with one of said surfaces extending in an anterior-posterior direction and the other extending in a medial-lateral direction. The intervening insert defines concave upper and lower part-cylindrical seats oriented for respectively engaging these part-cylindrical surfaces, wherein these part-cylindrical seats are defined by offset radii to include a somewhat flattened central base region merging smoothly with upwardly curving radiused sides. | 05-17-2012 |
| 20110046741 | Total disc implant - A total disc implant (TDI) is provided for total replacement of a spinal disc or discs in a human patient or other mammal, wherein the TDI is designed to maintain a substantially full range of natural motion (ROM) following implantation. The TDI generally comprises, in one preferred form, upper and lower end plates for affixation to adjacent vertebral bodies, with an intervening insert disposed therebetween. The end plates each include elongated part-cylindrical surfaces oriented generally perpendicular to each other, with one of said surfaces extending in an anterior-posterior direction and the other extending in a medial-lateral direction. The intervening insert defines concave upper and lower part-cylindrical seats oriented for respectively engaging these part-cylindrical surfaces, wherein these part-cylindrical seats are defined by offset radii to include a somewhat flattened central base region merging smoothly with upwardly curving radiused sides. | 02-24-2011 |
| 20100228354 | Hip prosthesis with monoblock ceramic acetabular cup - An improved hip prosthesis includes an acetabular cup bearing component constructed from a relatively hard and high strength ceramic material for articulation with a ball-shaped femoral head component which may be constructed from a compatible ceramic or metal material. In one form, the acetabular cup further includes a ceramic porous bone ingrowth surface adhered thereto for secure ingrowth attachment to natural patient bone. | 09-09-2010 |
| 20100049331 | Ceramic-ceramic articulation surface implants - A prosthesis for articulation (e.g., hip or joint prosthesis) is provided, which includes a pair of articulation components respectively defining a pair of articulation surfaces movably engageable with each other. In some embodiments, each of the articulation surfaces is formed from a biocompatible ceramic (e.g., doped silicon nitride ceramic) having a flexural strength greater than about 700 Mega-Pascal (MPa) and a toughness greater than about 7 Mega-Pascal root meter (MPam | 02-25-2010 |
| 20090326545 | Systems and methods for inserting a bone anchor without a pilot hole - Bone anchor insertion assemblies and methods are provided for inserting a bone anchor (e.g., bone screw) into bone without having to create a pilot hole. In some embodiments, the assembly includes a bone anchor, a housing member, and a rod. The housing member, which is coupled to the rod, is movable between proximally and distally advanced positions relative to the rod. In the proximal position, the bone anchor can be coupled to the rod. In the distal position, a tip of the bone anchor is generally aligned with a distal end of the housing member. The bone anchor is advanced into the bone under guidance of the housing member, where the tip of the bone anchor serves as a bone awl. Once the bone anchor is seated within the bone, the housing member can be returned to the proximal position to improve visibility of the surgical procedure. | 12-31-2009 |
| 20090187218 | Bone fixation plate with wire members for resisting back out of bone anchors - A bone (e.g., spine) fixation plate with one or more wire members is provided. In some embodiments, each wire member spans across a top surface of the bone fixation plate in a direction generally transverse to a longitudinal axis of the plate. The wire member may flex (e.g., elastically) between a first position in which the wire member permits advancement of the bone anchor (e.g., screw) past the member, partially through the plate, and into bone, and a second position in which the wire member resists back out of the bone anchor from the plate. | 07-23-2009 |
| 20090182383 | Bone fixation plate with anchor retaining member - Bone (e.g., spinal) fixation assemblies are provided that resist back out of associated bone anchors (e.g., screws). The bone fixation plate may house a bone anchor retaining member that permits partial passage of the bone anchor and subsequently resists back out of the bone anchor from the member and the bone fixation plate. In some embodiments, the bone fixation plate may include an attachable cover member that prevents the bone anchor retaining member from ejecting from the plate. In other embodiments, ejection of the anchor retaining member from the bone fixation plate may be prevented by walls integral to the plate. | 07-16-2009 |
