Patent application number | Description | Published |
20080275455 | Apparatus and Methods for Inserting an Implant - A system and method for inserting an implant into a cavity is disclosed, which may include advancing an implant insertion instrument toward a pair of adjacent bodies, the implant insertion instrument having two opposed ramps, wherein each ramp has a distal tip and wherein the longitudinal axes of the opposed ramps are separated by an initial angle; inserting the distal tips of the opposed ramps between the adjacent bodies, thereby creating an initial interbody cavity between the adjacent bodies; expanding the interbody cavity while maintaining the initial angle between the longitudinal axes of the opposed ramps; placing the implant in a final location between the adjacent bodies; transferring a compressive force urging the adjacent bodies together from the opposed ramps to the implant; and extracting the implant insertion instrument from the interbody cavity. | 11-06-2008 |
20100160984 | Insertion tool for Inter-body Vertebral Prosthetic Device With Self-Deploying Screws - An apparatus for inserting an intervertebral prosthesis within a spine of a mammal includes: a handle disposed at a proximal end of the tool and including a drive nut operating to produce rotational torque in response to user-input about a central axis; a first drive shaft including proximal and distal ends; the proximal end in communication with the drive nut, receiving rotational torque therefrom, and imparting rotational torque to the first drive shaft about a first axis, which is laterally offset from the central axis; and the distal end of the first drive shaft including a first drive head; and a chuck disposed at a distal end of the tool and being sized and shaped to engage the intervertebral prosthesis during implantation, wherein the first drive shaft extends through the chuck and the first drive head engages a first gear of the intervertebral prosthesis, such that rotation of the first gear causes rotation and deployment of a first anchoring element of the intervertebral prosthesis. | 06-24-2010 |
20100161057 | Interbody Vertebral Prosthetic Device With Self-Deploying Screws - An intervertebral prosthesis includes: a body including first and second spaced apart major surfaces and at least anterior and posterior sidewalls extending therebetween, the first major surface for engaging an endplate of a first vertebral bone of a spine, and the second major surface for engaging an endplate of an adjacent, second vertebral bone of the spine, and the first and second major surfaces defining a longitudinal axis extending substantially normal to said surfaces; a first aperture extending from within the body, transversely with respect to the longitudinal axis, and opening at the first major surface; a first anchoring element disposed within the first aperture and including a threaded shaft having proximal and distal ends; and a first gear disposed adjacent to and in meshed, threaded communication with the threaded shaft of the first anchoring element such that rotation of the first gear causes rotation of the first anchoring element, wherein a driving rotational force on the first gear causes the first anchoring element to rotate, deploy from the body, and thread into the first vertebral bone in a direction transverse to the longitudinal axis of the body and the spine. | 06-24-2010 |
20120029642 | Apparatus and Methods for Inserting an Implant - Methods and apparatus for inserting an implant into a cavity provide for: disposing an implant between opposing first and second ramps of an implant insertion instrument; orienting first and second vertebral contact surfaces of the ramps such that they define an initial, non-zero angle therebetween; inserting the first and second ramps into an intervertebral space of a spine; advancing the implant distally along and between the ramps such that the first and second vertebral contact surfaces of the first and second ramps separate while holding the initial angle substantially constant. | 02-02-2012 |
20120253412 | ADJUSTABLE APPARATUS AND METHODS FOR INSERTING AN IMPLANT - Methods and apparatus for inserting an implant into an intervertebral cavity between adjacent vertebral bodies provide for: adjust an initial height between inner surfaces of respective first and second ramps of an inserter; simultaneously sliding first and second ramps of the inserter, and the implant, proximally, toward distal ends of the first and second ramps, such that the vertebral contact surfaces of the respective first and second ramps separate and distract the vertebral bodies and receive the implant into the intervertebral space with no compressive loading, while holding an initial angle between the ramps substantially constant; reversing the sliding of the first and second ramps to permit the vertebral bodies to compressively load the implant, again while holding the initial angle therebetween substantially constant; and withdrawing the distal ends of the first and second ramps from the intervertebral space. | 10-04-2012 |
20120265307 | Implantable Intervertebral Fusion Device - The present application relates to an implantable intervertebral fusion device for use when surgical fusion of vertebral bodies is indicated. The implant is comprised of bone conforming in size and shape with the end plates of the adjacent vertebrae and has a wedge-shaped profile with a plurality of footings and grooves located on the top and bottom surfaces. | 10-18-2012 |
20120271421 | Apparatus and Method for Inserting Intervertebral Implants - An instrument for inserting an implant between vertebrae includes an upper and a lower ramp each having a respective proximal and a distal end. A bracket assembly is coupled to the upper and lower ramps at the proximal ends. The bracket assembly biases the upper and lower ramps closed at the distal end. A drive member has a longitudinal axis and a screw thread thereon. The drive member is disposed between the upper and lower ramps and extends through a passage in the bracket assembly. An adjustable spreader is operably coupled to the drive member and movable between the upper and lower ramps along the longitudinal axis by rotation of the drive member. The adjustable spreader separates the upper ramp from the lower ramp during forwardly movement along the longitudinal axis. An implant holder is coupled to the adjustable spreader. | 10-25-2012 |
20140018923 | ADJUSTABLE APPARATUS AND METHODS FOR INSERTING AN IMPLANT - Methods and apparatus for inserting an implant into an intervertebral cavity between adjacent vertebral bodies provide for: adjust an initial height between inner surfaces of respective first and second ramps of an inserter; simultaneously sliding first and second ramps of the inserter, and the implant, proximally, toward distal ends of the first and second ramps, such that the vertebral contact surfaces of the respective first and second ramps separate and distract the vertebral bodies and receive the implant into the intervertebral space with no compressive loading, while holding an initial angle between the ramps substantially constant. | 01-16-2014 |