Abstract:
Mixing systems for storing and mixing multiple components of various medical compositions are provided. Generally, the instant mixing systems comprise a barrel, a plunger slidably disposed inside a barrel, and a pushing rod slidably disposed inside the plunger. The instant mixing system may further comprise multiple chambers for storing individual components or mixtures of components, with at least one chamber disposed in the barrel and at least one chamber disposed inside the plunger.
Abstract:
An orthopedic implant device (100, 200, 300, 301, 320, 340, 400, 500, 600, 700', 720, 740, 760, 770, 800, 900, 1000, 1100, 1200, 1300, 1400, 1500, 1600, 1700, 1800) is non-rigid, i.e., flexible and/or malleable, in a first form for insertion into a desired in vivo site, and then transformable into a rigid, or hardened, form for providing a load-bearing function or providing other structural and/or mechanical function after implantation. The device includes a biocompatible sheath (110) and a curable material (120) sealed within the sheath (110). The curable material (120) is provided in a first form that provides flexibility to the device and is structured to rigidize in a second form after insertion to an in vivo location at least one minute after application of a cure-initiating energy to the material (120) prior to insertion. Related methods and kits are also provided.
Abstract:
A device includes a sensor configured to determine a condition associated with a nucleus pulposus, a reservoir configured to include a first agent capable of affecting the condition associated with the nucleus pulposus, a control element configured to provide access to the reservoir, and a controller in communication with the sensor and the control element. The controller is configured to manipulate the control element to provide access to the reservoir in response to the condition determined by the sensor.
Abstract:
A system for treating an annular defect of an intervertebral disc is provided. The system comprises a cannula (34) for accessing a nucleus pulposus (24) of the intervertebral disc, an expandable spacing device, and a material delivery instrument (42). The expandable spacing device (40) has a first deflated position and a second inflated position. The spacing device is sized to pass through the cannula when in the first deflated position and the spacing device has a predetermined shape in the second inflated position. The material delivery instrument is adapted to inflate the spacing device from the first deflated position to the second inflated position by injecting a biocompatible material into the spacing device. In another aspect, a method of treating at least one annular defect of an intervertebral disc is provided.
Abstract:
A method for treating a vertebral bone comprises providing a plurality of hollow microparticles and providing a flowable and settable bone filling material. The method further comprises mixing the plurality of hollow microparticles with the bone filling material to form a bone augmentation material. The method further comprises inserting an injection device into the vertebral bone and injecting the bone augmentation material from the injection device and into the vertebral bone.
Abstract:
A system for treating an annular defect of an intervertebral disc is provided. The system comprises a cannula for accessing a nucleus pulposus of the intervertebral disc, an expandable spacing device, and a material delivery instrument. The expandable spacing device has a first deflated position and a second inflated position. The spacing device is sized to pass through the cannula when in the first deflated position and the spacing device has a predetermined shape in the second inflated position. The material delivery instrument is adapted to inflate the spacing device from the first deflated position to the second inflated position by injecting a biocompatible material into the spacing device. In another aspect, a method of treating at least one annular defect of an intervertebral disc is provided.
Abstract:
An interspinous spacer for placement between adjacent spinous processes includes a flexible, fillable container (e.g., a bag or balloon) for containing a material that is compressible during end use, for example, silicone after curing. The container is impermeable to the material it will be filled with. A structural mesh, for example, made of PET fabric and interwoven shape-memory alloy wire, provides structure for and containment of the container, as well as shape control. The material can be injected into the container through an optional conduit, for example, a one-way valve.
Abstract:
An implant is disclosed and can include a body and a plurality of pellets disposed within the body. The implant can be moved between an unmolded, relaxed configuration wherein the body is not conformed to a bone and a molded, relaxed configuration wherein the body is at least partially conformed to the bone.
Abstract:
An adjustable interspinous process brace is disclosed and can include a superior component. The superior component can include a superior spinous process bracket that can engage a superior spinous process. Further, the adjustable interspinous process brace can include an inferior component. The inferior component can include an inferior spinous process bracket that can engage an inferior spinous process. Further, the inferior component can be movably engaged with the superior component from a retracted position to an extended position. In the extended position, a distance between the superior spinous process bracket and the inferior spinous process bracket can be increased.
Abstract:
The present application discloses various embodiments of surgical fasteners that combine mechanical and osteogenic means of fixation to maximize in vivo stability and long-term performance. The fastener generally includes a head and a shaft. The fastener is fenestrated and includes a channel that leads into one or more openings along the shaft. Bone void filling materials is delivered through the channel to the shaft to improve anchoring. In one embodiment, the osteogenic means comprise a coating applied to the fastener to improve bony apposition. The fastener with combined mechanical and osteogenic means provides initial, immediate anchoring and long term anchoring.