Abstract:
A suture anchor assembly including a delivery system for a therapeutic agent, such as a bone cement, that is directly integrated into an anchor inserter. The therapeutic agent flows through a shaft of the inserter into a central cannulation of a fenestrated anchor body. Holes in the anchor end of the shaft allow the therapeutic agent to pass through the holes in the shaft and through the apertures in the anchor body into the region of the repair site.
Abstract:
There is provided an anchor for ligament surgery including: a lower end part provided with a first through hole axially formed through the lower end part; a body part positioned on an upper end of the lower end part and provided with a second through hole axially formed through the body part, the second through hole communicating with the first through hole; and an upper end part positioned on an upper end of the body part and provided with a third through hole axially formed through the upper end part, the third through hole communicating with the second through hole, wherein a surgical drill bit provided with a pointed part on a free end thereof is removably inserted into the first through hole, the second through hole, and the third through hole.
Abstract:
Disclosed are fixation devices for repairing spondylolysis. The fixation device can include a first anchor, a second anchor, and a bridge that couples the first and second anchors together. In use, the first anchor can be implanted on one side of a pars fracture, the second anchor can be implanted on the other side of the pars fracture, and the bridge can span across the pars fracture. In some embodiments, the fixation device can be compressible to promote healing of the fracture.
Abstract:
Devices and methods for anchoring implants to bone are disclosed. A pre-tensioned device (200) for anchoring an implant to bone includes a base element (210), a head element (220), and a tensioning element (230). The base element includes a bone engagement portion (213), and the head element includes an implant engagement portion (223). The tensioning element can serve to create a predetermined amount of tension within the device. A method of anchoring an implant to bone can include inserting such a device through a hole in an implant into bone, with the tensioning element set to a predetermined tension.
Abstract:
Improved bone screws are provided. The bone screws comprise a head portion that is connected to a shaft portion. The shaft portion can comprise one or more fenestrations that extend along a length of the screw. The fenestrations can be straight, or they can include angled bends and arcuate curves. At least a portion of the bone screws can be shot-peened or cold-worked in order to increase the strength of the bone screws to allow for use in, among other regions, the cervical region of the spine.
Abstract:
Implementations of the present disclosure provide a fastener including a tip portion, a proximal portion, an advancement mechanism and an expandable member. The tip portion has a first surface. The proximal portion is configured for coupling to the tip portion and has a second surface. The mechanism advances the first surface toward the second surface. The expandable member includes a first end abutting the first surface of the tip portion and a second end abutting the second surface of the proximal portion. Advancement of the two surfaces toward each other advances the first end of the expandable member toward the second end of the expandable member. The expandable member is configured to expand in response to the advancement. At least one of the ends of the expandable member is a free end extending under and configured to rotate with respect to an abutting one of the first or second surfaces.
Abstract:
A self-expanding bone screw anchor assembly adapted to allow the screw body to engage the bone and the anchor to attach thereto. The anchor assembly is adapted to be universally deployed with a variety of installation tools.
Abstract:
A flexible compression screw having multiple segments, one or more of which are flexible and one or more segments that also include threads. The flexibility is created through the use of at least one helical slot formed generally in the center segment of the element. Additional flexible segments also have at least one helical slot in either the same helical rotation and pattern or in an opposite rotation and/or different pattern. An elastomeric material can fill the hollow body, extend into the slots and/or encompass the exterior. The flexible screw can have a hollow body, including leading and trailing edge, or can have a partially hollow body.
Abstract:
A flexible compression screw having multiple segments, one or more of which are flexible and one or more segments that also include threads. The flexibility is created through the use of at least one helical slot formed generally in the center segment of the element. Additional flexible segments also have at least one helical slot in either the same helical rotation and pattern or in an opposite rotation and/or different pattern. An elastomeric material can fill the hollow body, extend into the slots and/or encompass the exterior. The flexible screw can have a hollow body, including leading and trailing edge, or can have a partially hollow body.
Abstract:
The present invention relates to a device and method which may be used to reinforce the native annulus during spinal surgery. The device is a catheter based device which is placed into the inter-vertebral space following discectomy performed by either traditional surgical or endoscopic approaches. The distal end of the catheter is comprised of an expansile loop which may be increased in diameter by advancement of a portion of the catheter via its proximal end, such proximal end remaining external to the body. The expansile loop may be formed of a woven or braided material and may be made of select biocompatible polymer.