Abstract:
A bone material dispensing device is provided. The bone material dispensing device comprises a housing having a proximal end, a distal end, and a longitudinal axis. The proximal end having a first opening and the distal end having a second opening. The first opening and the second opening configured to slidably receive at least a portion of a plunger. A locking member is provided that is pivotably connected to an upper surface of the housing and extends adjacent to the upper surface of the housing. The locking member comprises a locking surface extending adjacent to the distal end of the housing configured to engage a portion of a tubular member, a funnel, or a combination thereof. The locking member is movable in a locking position to lock the portion of the tubular member, the funnel, or the combination thereof with the housing. A bone material dispensing system and a method of implanting bone material with the bone material dispensing system are also provided.
Abstract:
Spinal implant trials are provided having various configurations and sizes that aid the selection of spinal implants having similar configurations and sizes. A surgeon during surgery can insert various configurations and sizes of the spinal implant trials into a disc space between two adjacent vertebral bodies of a patient to enable the selection of a spinal implant configured and sized to fit the patient's disc space. Fluoroscopic images can be used in aiding the selection of an appropriately configured and sized spinal implant corresponding to one of the spinal implant trials. The spinal implant trials include features that reveal on the fluoroscopic images whether the spinal implant trials are properly oriented and positioned in the disc space. As such, the selection of the configuration and size of the spinal implants can be made after it is determined that the spinal implant trials are properly oriented and positioned within the disc space.
Abstract:
A dynamic spinal stabilization assembly includes at least one mounting collar with a bore therethrough along a longitudinal axis, and a spinal rod slidably extending through the bore. The bore includes a medially disposed first section of reduced size that tapers both inwardly and outwardly relative to the axis, and respective end sections of relatively larger size. The bore may be defined by an interior wall that convexly curves toward the axis in the first section, advantageously with a constant non-zero radius of curvature. The bore profile helps minimize potential binding that may occur between the collar and the rod. The rod is coupled to bone anchoring elements, with at least one such connection being via the collar.
Abstract:
A bone anchor (.10} including a bone engaging element (.12) and an implant engaging element (14). The bone engaging element (32) includes a first portion (.16) formed of a first material and a second portion (18) formed of a second material and extending at least partially along a length of the first portion (16), and with the second portion (1 S) of the bone engaging element ( 12) positioned between the first portion (16) and adjacent bone tissue when the bone engaging element (12) is engaged with the bone to provide an interface with the adjacent bone tissue. In one embodiment; the first portion (16) of the bone engaging element (12) exhibits a first level of rigidity and the second portion (18) exhibits a second level of rigidity less than the .first level of rigidily. In another embodiment, the bone engaging element (12) includes external threads (20), with the second portion (18) of the bone engaging element (12) defining at least a portion of the external threads (20).
Abstract:
A device for hydrating particulate bone material is provided. The device comprises a tubular member having an interior surface and an exterior surface. The interior surface is configured to receive the particulate bone material and a hydration fluid. The exterior surface has a plurality of pores configured to allow the hydration fluid to flow into the interior surface of the tubular member and hydrate the particulate bone material. The plurality of pores are smaller in size than the particulate bone material. Methods of dispensing particulate the bone material are also provided.
Abstract:
Embodiments of the invention include implants and methods for connecting devices to bones, such as one or more endplates of vertebrae. Devices may include mechanisms for connecting to one or more vertebrae by extending portions of the devices through an aperture in a vertebral implant and expanding the implant within the one or more vertebrae. A fill material may be used to drive the expansion in some embodiments.
Abstract:
One embodiment of the present application includes: performing a medical procedure on a segment of a patient's spine. This segment includes two vertebrae (40a, 40b) each in contact with a spinal disk (30) positioned in an intervertebral disk space (36). A passage (70) is formed that follows a pathway through the vertebrae (40a, 40b) and the intervertebral disk space (36). This passage (70) extends from an extradiscal opening (72a, 72b) through one of the vertebrae (40a, 40b) along a path that turns to change direction. The tubular device (110) is inserted in the passage (70) and extends through the intervertebral disk space (36). A fluid material is introduced into the tubular device (110) to at least partially fill it to provide a spinal prosthetic structure (136). Other embodiments and inventive aspects include other prosthetic device arrangements, implantation methods, systems, and techniques.
Abstract:
Spinal implant trials are provided having various configurations and sizes that aid the selection of spinal implants having similar configurations and sizes. A surgeon during surgery can insert various configurations and sizes of the spinal implant trials into a disc space between two adjacent vertebral bodies of a patient to enable the selection of a spinal implant configured and sized to fit the patient's disc space. Fluoroscopic images can be used in aiding the selection of an appropriately configured and sized spinal implant corresponding to one of the spinal implant trials. The spinal implant trials include features that reveal on the fluoroscopic images whether the spinal implant trials are properly located and oriented in the disc space and include features corresponding to different sizes of spinal implants also revealed on the fluoroscopic images.
Abstract:
A bio-compatible stabilization system includes one or more inserters and a spinal stabilization connector for traversing a space between one or more bony structures. The stabilization system is designed to reduce or eliminate stress shielding effects while functioning as a tension band. The stabilization rod is shaped to define a fixed number of discrete positions of orientation.
Abstract:
ABSTRACT A coupling assembly may include an anchor member, a receiver member, and a seat member. The receiver member may have an anchor member end that cooperates with the anchor member and may have an implant receiving aperture for receiving an implant. The seat member may be disposable within the receiver member between the anchor member and the implant receiving aperture. First and second rotation-limiting features may be engageable to limit rotation of the seat member relative to the receiver member.