摘要:
A spinal implant replaces excised tissue removed during spine surgery. This implant includes fasteners which firmly attach it to vertebrae adjacent to excised tissue so as to transmit tension and torsional loads to and from those vertebrae. The body of the implant has through cavities into which bone growth material is placed during surgery. The body of the implant also has a finite modulus of elasticity in compression so as to share compressive loads with emplaced bone growth material and with new bony growth facilitated by the emplaced material and the load sharing.
摘要:
A spinal implant replaces excised tissue removed during spine surgery. This implant includes fasteners which firmly attach it to vertebrae adjacent to excised tissue so as to transmit tension and torsional loads to and from those vertebrae. The body of the implant has through cavities into which bone growth material is placed during surgery. The body of the implant also has a finite modulus of elasticity in compression so as to share compressive loads with emplaced bone growth material and with new bony growth facilitated by the emplaced material and the load sharing.
摘要:
The present invention provides methods and devices for reducing a rod disposed within or adjacent to a rod-receiving head of a spinal implant. In general, a rod reduction device is provided that can removably mate to the rod-receiving head of a spinal implant and be effective to reduce a rod disposed within or adjacent to the rod-receiving head. In an exemplary embodiment, the rod reduction device can include a clamping member that is adapted to removably mate to a rod-receiving head of a spinal implant and a rod-reducing arm that is rotatably matable to the clamping member. The rod-reducing arm can be configured such that rotation of the arm with respect to the clamping member is effective to reduce a rod into the rod-receiving head of the spinal implant that is mated to the clamping member.
摘要:
The systems and methods of the present invention provide for soft tissue reconstruction using a fixation device that coapts two intact anatomic structures to each other. In one embodiment, these systems and methods are used to reconstruct defects or abnormalities in the female pelvic floor by using fixation devices to produce a paravaginal suspension of the affected tissues.
摘要:
The present invention is an apparatus for cutting allograft bone implants from donor bone. Die sets of standard sizes are installed in a press. Donor bone is then placed in position between the upper and the lower parts of a matched cutting set comprising a hollow cylindrical cutting blade, a mandrel, and a table which establishes a gap around the mandrel which guides the blade. After the bone to be shaped has been properly placed, a shaped cutting blade is driven through the donor bone, producing a precisely shaped allograft implant. The invention provides for rapid change out of blades, rapid cleaning, and easy maintenance.
摘要:
A spinal implant replaces excised tissue removed during spine surgery. This implant includes fasteners which firmly attach it to vertebrae adjacent to excised tissue so as to transmit tension and torsional loads to and from those vertebrae. The body of the implant has through cavities into which bone growth material is placed during surgery. The body of the implant also has a finite modulus of elasticity in compression so as to share compressive loads with emplaced bone growth material and with new bony growth facilitated by the emplaced material and the load sharing.
摘要:
A guide comprising a tube having a first end and a second end, the tube: A) being configured for insertable acceptance therethrough of a shaft of a tool designed to make cuts in a first vertebra and in a second vertebra simultaneously; B) having tangs extending from the first end thereof, wherein the tangs are tapered to conform to natural lordosis; and C) having a depth stop located on the second end thereof.
摘要:
An end cut tool for making an end cut in bone is disclosed that comprises: A) a shaft having first and second ends, 1) the first end having a blade attached thereto for making the end cut in the bone, and 2) the second end having a handle attached thereto substantially perpendicular to the axis of the shaft to facilitate rotation of the shaft, and B) at least one interlock located between the first and second ends, the interlock preventing rotation of the blade during insertion into a patient and then preventing withdrawal of the tool during use.
摘要:
Ultrasonic blade coupler comprising a blade element composed of a material selected from aluminum and titanium rendered sharpenable by a surface hardening treatment. The blade coupler exhibits improved acoustical properties with reduced energy consumption.
摘要:
Bone anchor assemblies having a large diameter for fixing a spinal connection element to bone and methods of assembly are described. The assembly includes a receiver member for receiving the spinal connection element, a bone-engaging shank for engaging bone, a retaining member for retaining the head of the shank within the receiver member and a locking member for locking the retaining member within the receiver member.