Patent classifications
A61F2002/30914
Bone graft cage
A device for containing bone graft material includes an outer sleeve including a first proximal longitudinal split extending along a length thereof and a first distal longitudinal split extending along a length thereof and an inner sleeve connected to the outer sleeve via at least one strut so that a bone graft collecting space is defined therebetween, the inner sleeve including a second distal longitudinal split extending along a length thereof in combination with an interstitial mesh extending circumferentially between the inner and outer sleeves to hold graft material in the bone graft collecting space, the interstitial mesh including a third longitudinal split extending along a length thereof so that a distal side of the device may be spread open to open the distal longitudinal slot from the outer sleeve, through the interstitial mesh and the inner sleeve to a space radially within the inner sleeve.
Fixation devices and prostheses for soft tissue connection to the same
An orthopedic assembly includes a tibial prosthesis that includes a body that defines an anterior side and a posterior side. The body further incudes a recess in the anterior side of the joint prosthesis and a plurality of openings that extend through the body from the anterior side to the posterior side thereof. At least a first and second opening of the openings are positioned at respective lateral and medial sides of a longitudinal axis of the tibial prosthesis. A modular insert is positioned within the recess of the body such that at least a portion of the modular insert is positioned between the openings of the body. The modular insert is formed separately from the tibial prosthesis and has a porous outer surface to promote tissue ingrowth.
Bone implants and methods for correcting bone defects
A bone implant including a wire mesh support frame (120A) having a plurality of interconnected wire members and at least two fastening points in the form of retention eyelets (140A) connected to the support frame by deformable retention arms (138A), and a biocompatible plate (112) formed about the support frame, the plate having at least two open cavities (116) therein, wherein each of the retention arms extends out of the plate from or into one of the open cavities. A method for correcting a bone defect in a patient, a mesh support frame for use in a bone implant, and a method of fabricating a bone implant are also provided.
Three-dimensional lattice structures for implants
The three-dimensional lattice structures disclosed herein have applications including use in medical implants. Some examples of the lattice structure are structural in that they can be used to provide structural support or mechanical spacing. In some examples, the lattice can be configured as a scaffold to support bone or tissue growth. Some examples can use a repeating modified rhombic dodecahedron or radial dodeca-rhombus unit cell.
Anisotropic biocompatible lattice structure
The three-dimensional lattice structures disclosed herein have applications including use in medical implants. Some examples of the lattice structure are structural in that they can be used to provide structural support or mechanical spacing. In some examples, the lattice can be configured as a scaffold to support bone or tissue growth. Some examples can use a repeating modified rhombic dodecahedron or radial dodeca-rhombus unit cell. The lattice structures are also capable of providing a lattice structure with anisotropic properties to better suit the lattice for its intended purpose.
Programmable implant
Various embodiments of implant systems and related apparatus, and methods of operating the same are described herein. In various embodiments, an implant for interfacing with a bone structure includes a web structure, including a space truss, configured to interface with human bone tissue. The space truss includes two or more planar truss units having a plurality of struts joined at nodes. Implants are optimized for the expected stress applied at the bone structure site.
Bone implants and methods for correcting bone defects
A bone implant including a wire mesh support frame having a plurality of interconnected wire members and at least two fastening points in the form of retention eyelets connected to the support frame by at least one of the wire members, and a biocompatible plate formed about the support frame, the plate having a bore associated with each of the retention eyelets.
METHODS OF DESIGNING THREE-DIMENSIONAL LATTICE STRUCTURES FOR IMPLANTS
The methods disclosed herein of generating three-dimensional lattice structures and reducing stress shielding have applications including use in medical implants. One method of generating a three-dimensional lattice structure can be used to generate a structure lattice and/or a lattice scaffold to support bone or tissue growth. One method of reducing stress shielding includes generating a structural lattice to provide sole mechanical spacing across an area for desired bone or tissue growth. Some examples can use a repeating modified rhombic dodecahedron or radial dodeca-rhombus unit cell. Some methods are also capable of providing a lattice structure with anisotropic properties to better suit the lattice for its intended purpose.
MOTION PRESERVATION IMPLANT AND METHODS
Various embodiments of implant systems and related apparatus, and methods of operating the same are disclosed. In various embodiments, an implant for interfacing with a bone structure includes a web structure, including a space truss, configured to interface with human bone tissue. The space truss includes two or more planar truss units having a plurality of struts joined at nodes. Implants include one or more flexible struts that impart flexibility to the implant.
POROUS IMPLANT STRUCTURES
Porous biocompatible structures suitable for use as medical implants and methods for fabricating such structures are disclosed. The disclosed structures may be fabricated using rapid manufacturing techniques. The disclosed porous structures each have a plurality of struts and nodes where no more than two struts intersect one another to form a node. Further, the nodes can be straight, curved, and can include portions that are curved and/or straight. The struts and nodes can form cells that can be fused or sintered to at least one other cell to form a continuous reticulated structure for improved strength while providing the porosity needed for tissue and cell in-growth.