摘要:
Systems and methods for providing deeper knee flexion capabilities, more physiologic load bearing and improved patellar tracking for knee prosthesis patients. Such systems and methods include (i) adding more articular surface to the antero-proximal posterior condyles of a femoral component, including methods to achieve that result, (ii) modifications to the internal geometry of the femoral component and the associated femoral bone cuts with methods of implantation, (iii) asymmetrical tibial components that have an unique articular surface that allows for deeper knee flexion than has previously been available, (iv) asymmetrical femoral condyles that result in more physiologic loading of the joint and improved patellar tracking and (v) modifying an articulation surface of the tibial component to include an articulation feature whereby the articulation pathway of the femoral component is directed or guided by articulation feature.
摘要:
Embodiments of the invention include expandable, implantable devices and methods. Devices expand linearly to provide secure fixation between or among anatomical structures. The expanded height of some embodiments is greater that twice the unexpanded height of the device. In some embodiments, an implant replaces one or more vertebral bodies of the spine.
摘要:
Systems, methods and devices for providing stabilization between first and second vertebrae are provided. More particularly, in one form a system includes an implant configured to be positioned in a disc space between the first and second vertebrae and a freestanding plate for engagement with extradiscal surfaces of the first and second vertebrae. The system also includes an insertion instrument with an engaging portion configured to releasably engage with the implant and the plate such that the implant and plate can be positioned together relative to the first and second vertebrae. In one aspect, an angular orientation of the implant relative to the plate is adjustable when the implant and the plate are engaged by the instrument. In this or another aspect, the implant and plate are held in a contiguous relationship when engaged by the instrument. However, different forms and applications are also envisioned.
摘要:
A surgical implant device capable of conforming to a variety of surface topographies facilitates the growth and regeneration of site to which the device is applied. The device employs a plurality of elongate members supporting a column of discrete, rotatable elements in contact with each adjacent element. Anchor plates secure the respective ends of the elongate members, such anchor plates attachable to bone. The implant device provides and ordered array of individually rotatable elements to form a surface that permits bodily fluids to pass therethough.
摘要:
The present invention relates to tissue scaffold implant devices useful in the repair and/or regeneration of diseased and/or damaged musculoskeletal tissue and that include a tissue scaffold component fixedly attached to a scaffold fixation component via a polymeric adhesive layer, and to methods of making such tissue scaffold implant devices.
摘要:
An injectable or implantable medical device having orifice(s) on the surface that release an active agent with zero-order release kinetics is described herein. The device is a hollow matrix of any size or shape, which can be made from both metal and non-metal surfaces. The device comprises of a reservoir capable of releasing at least one therapeutic, diagnostic, or prophylactic agent via the orifices to the desired anatomical site. The developed device, due to its composite structure, has the ability to combine several release mechanisms, leading to zero-order release kinetics for most of the time. The composition provides zero-order kinetics, in part, because the diffusion rate of the drug from the device is slow which enables sink conditions. Hence, no back transfer or build up of drug occurs at anytime. Polymers are not required for controlled release.
摘要:
Systems and methods for repairing annulus defects include at least one blocking member positionable in or adjacent to the annulus defect, at least one attachment portion for securing the blocking member to adjacent tissue, and instruments for placing and engaging the blocking member in and/or adjacent to the annulus defect. The blocking member extends at least partially across the annulus defect for repair of the defect and/or retention of nucleus material, one or more implants, bio-compatible materials or device, and/or other objects positioned in the disc space.
摘要:
Embodiments described herein are related to pellets that are placed within an extraction site that is in need of bone augmentation and preservation. The pellets are typically cylindrical in shape and comprise a material and a polymer coating. The goal of the pellets are to encourage sufficient new bone growth that jaw bone deterioration is prevented. The pellets create, arrange, and assemble an ideal growth environment for new bone growth to rapidly grow and preserve the original contours of an individual's jaw bone.
摘要:
Embodiments of the invention include expandable implants incorporated into a system for deploying the expandable implants to replace skeletal structures such as one or more vertebrae or portions of the spine or vertebrae. Some embodiments include related methods of implanting devices using deployment systems.
摘要:
Systems are provided for reducing the complexity and invasiveness of spinal stabilization procedures and provide an expandable device deliverable to a spinal implantation location. The expandable device can be delivered through a minimally invasive access portal and expanded at the implantation location to manipulate one or more bony structures or maintain a configuration of one or more bony structures.