摘要:
Systems and methods treat fractured or diseased bone by deploying more than a single therapeutic tool into the bone. In one arrangement, the systems and methods deploy an expandable body in association with a bone cement nozzle into the bone, such that both occupy the bone interior at the same time. In another arrangement, the systems and methods deploy multiple expandable bodies, which occupy the bone interior volume simultaneously. Expansion of the bodies form cavity or cavities in cancellous bone in the interior bone volume.
摘要:
The present invention is directed to a laminar flow endoscopic instrument for laminar transmission of irrigation fluid between an incision towards a zone of visualization associated with a surgical site, the endoscopic portal comprising an osteoendoscopic cylinder having an outer contact surface encircling an inner visual surface and extending between a proximal handle end and a distal endoscopic end with a directional surface extending therefrom and providing laminar flow of irrigation fluid.
摘要:
A method provides a void creation device including an expandable structure adapted to undergo expansion in the cancellous bone volume of a bone selected for treatment. The expandable structure has at least one dimension so that the expandable structure will assume a predetermined shape and size when substantially expanded that compacts only a first volume of the cancellous bone volume to form a void, leaving a second volume of the cancellous bone volume substantially uncompacted by the expandable structure. A filling material is placed within the void through the percutaneous access path.
摘要:
A tool served to convey a bone filling material into a cancellous bone volume. The tool carries an expandable structure, which is sized and configured for expansion within the cancellous bone volume to condition the cancellous bone volume for receiving the bone filling material.
摘要:
Each of an osteochondral plug graft and a kit comprises a trapezoid shaped construct configured for osteochondral implanting. An osteochondral regeneration method comprises forming a recipient socket in a chondral area of an articular joint in need of repair; harvesting a trapezoid shaped graft from another chondral area; and implanting the trapezoid shaped graft into the recipient socket.
摘要:
Devices and methods compress cancellous bone. In one arrangement, the devices and methods make use of an expandable body that includes an internal restraint coupled to the body. The internal restraint directs expansion of the body. In one arrangement, a method for treating bone inserts the device having the internal restraint inside bone and causes directed expansion of the body in cancellous bone. Cancellous bone is compacted by the directed expansion.
摘要:
The native cancellous bone volume of a vertebral body is altered to comprise a region of cancellous bone that has been compressed to form a compressed bone region that peripherally defines a cavity and another region of substantially uncompressed cancellous bone occupying at least a portion of the remaining native cancellous bone volume. A bone filling material occupies the cavity.
摘要:
A balloon for use in compressing cancellous bone and marrow (also known as medullary bone or trabecular bone) against the inner cortex of bones whether the bones are fractured or not. The balloon comprises an inflatable, non-expandable balloon body for insertion into said bone. The body has a shape and size to compress at least a portion of the cancellous bone to form a cavity in the cancellous bone and to restore the original position of the outer cortical bone, if fractured or collapsed. The balloon is prevented from applying excessive pressure to the outer cortical bone. The wall or walls of the balloon are such that proper inflation the balloon body is achieved to provide for optimum compression of all the bone marrow. The balloon is able to be folded so that it can be inserted quickly into a bone. The balloon can be made to have a suction catheter. The main purpose of the balloon is the forming or enlarging of a cavity or passage in a bone, especially in, but not limited to, vertebral bodies.
摘要:
The invention describes a surgical implant for providing stabilization of an intraosseous circumferential fracture within a femoral neck of a proximal femur. The surgical implant includes a bone barrel and a cortical side plate having at least one screw hole to allow rigid fixation of the implant to the proximal femur. The cortical side plate abuts a lateral cortex of the proximal femur having a lateral portal of entry to ensure the bone barrel remains substantially parallel to an inner bony surface of the lateral portal of entry at all times. The bone barrel ensures a collection of bone growth elements is retained intraosseously. An osteomedullary rod being coaxially aligned with the bone barrel includes an axial threading for securely engaging an internal mating thread of the bone barrel. The axial threading is adapted to allow clockwise axial rotation of the osteomedullary rod to position a compression head thereof in operational contact with an autogenous cancellous osteomedullary bone cylinder. Further axial clockwise rotation induces the collection of bone growth elements to be extravasated from the autogenous cancellous osteomedullary bone cylinder and to flow into a region of surrounding bone within the femoral head and the femoral neck so as to induce bidirectional new bone formation. Other embodiments of the invention are described herein.
摘要:
A process for removing essentially all bone marrow from a cut bone graft and the cut bone graft produced thereby. A large substantially intact bone is selected and excess cartilage and associated soft tissues are removed from the surface of the bone. The bone is left whole or may be cut into appropriate smaller pieces constituting cut grafts and bone marrow is removed from the cancellous bone spaces of the small cut grafts through the application of centrifugal force. Prior to and/or following the application of centrifugal force, the bone graft may optionally be pretreated with one or more decontaminating agents, and/or solubilizing agents.