摘要:
An implant device (50) for cartilage regeneration in loading-bearing regions is formed of resorbable polymeric materials. The implant (50) is designed such that load is transmitted from the articulating surface of the bone platform (40) through the implant (50) to the entire area of subchondral bone (45) of the bone platform (40). Application of load in this manner results in reduced subchondral bone resorption, leading to joint stabilization and maintenance of normal joint biomechanics. The implant (50) allows for the incorporation therein of a resorbable scaffold or matrix material.
摘要:
Disclosed herein are devices (100), systems and methods of use relating to articulating interbody cages. In one aspect, disclosed is an intervertebral device (100) for use in a human spine including an anterior end (104); a posterior end (102); and at least four peripheral walls (22,24,26). The peripheral walls (26) define an interior volume surrounding a midline of the device and include a superior wall (22), an inferior wall (24) and a pair of opposing, generally trapezoidal - shaped sidewalls. Each of the trapezoidal - shaped sidewalls (26) includes an internal hinge element (60) that is rotatable from a first configuration to at least a second configuration such that the device is expandable in first dimension. Each of the internal hinge elements includes an axis that is coplanar with the midline of the device.
摘要:
Biocompatible bone graft material having a biocompatible, resorbable polymer and a biocompatible, resorbable inorganic material exhibiting macro, meso, and microporosities are described herein (Figure 2). A pliable bone restorative having an osteoconductive foam that at least partially surrounds a biocompatible mesh and the foam comprises a biocompatible, resorbable polymer and calcium phosphate is also described.
摘要:
The present invention provides an expandable fusion device capable of being installed inside an intervertebral disc space to maintain normal disc spacing and restore spinal stability, thereby facilitating an intervertebral fusion. In one embodiment, the fusion device includes a body portion, a first endplate, and a second endplate, the first and second endplates capable of being moved in a direction away from the body portion into an expanded configuration or capable of being moved towards the body portion into an unexpanded configuration. The fusion device is capable of being deployed and installed in both configurations.
摘要:
An expandable intervertebral implant, including a superior and inferior members configured to engage a superior and inferior intervertebral body, and an expansion mechanism disposed between the members to selectively adjust separation between them. The expansion mechanism includes a proximal wedge structure and a distal wedge structure that are relatively translated between the superior and inferior members. The wedge structures are coupled to the superior and inferior members by a plurality of track structures and rail structures. The superior and inferior members are configured to mate vertically when the expansion mechanism is undeployed via conformal protruding and recessed features.
摘要:
The present invention provides an expandable fusion device capable of being installed inside an intervertebral disc space to maintain normal disc spacing and restore spinal stability, thereby facilitating an intervertebral fusion. In one embodiment, the fusion device includes a central ramp, a first endplate, and a second endplate, the central ramp capable of being moved in a first direction to move the first and second endplates outplates outwardly and into an expanded configuration. The fusion device is capable of being deployed down an endoscopic tube.
摘要:
Biocompatible bone graft material having a biocompatible, resorbable polymer and a biocompatible, resorbable inorganic material exhibiting macro, meso, and microporosities are described herein ( Figure 2 ). A pliable bone restorative having an osteoconductive foam that at least partially surrounds a biocompatible mesh and the foam comprises a biocompatible, resorbable polymer and calcium phosphate is also described.
摘要:
This invention provides a novel unitary bone implant (200) having at least one rigid, mineralized bone segment (201, 202), which may be machined to include threads, grooves, a driver head, a recess or a symmetric or asymmetric shape, and a flexible, demineralized segment (203), which may also be machined to any desired shape prior to demineralization, or after demineralization. The implant (200) of this invention has wide orthopedic applicability, including for repair or replacement of ligaments (300), tendons (400), and joints (800).
摘要:
Biocompatible bone graft material having a biocompatible, resorbable polymer and a biocompatible, resorbable inorganic material exhibiting macro, meso, and microporosities are described herein (Figure 2). A pliable bone restorative having an osteoconductive foam that at least partially surrounds a biocompatible mesh and the foam comprises a biocompatible, resorbable polymer and calcium phosphate is also described.