Temporary fixation device
AssigneeDePuy Orthopaedics, Inc.
InventorDavid Konieczynski
Life of this patent
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Abstract
A device for temporarily affixing a bone plate to bone includes a sleeve, a bias member and a fixation member. The elongate, hollow sleeve has a proximal region and a distal region, and an inner diameter defined by openings at a proximal end and a distal end of the sleeve. The bias member is disposed within the sleeve in communication with the fixation member. The fixation member is at least partially disposed within the sleeve and has a proximal end and an at least partially-threaded distal, bone-engaging end. The fixation member moves longitudinally with respect to the sleeve such that a predetermined amount of the fixation member may extend beyond the distal end of the sleeve.
Claims30
A device for providing temporary fixation of a bone plate to two or more vertebrae, comprising:
- an elongate sleeve having a proximal region and a distal region, each having an open end;
- a fixation member for securing the plate to the vertebrae, the fixation member having a distal, bone-engaging end and a proximal end and being movable between a retracted position and an extended position, at least a portion of the distal, bone-engaging end of the fixation member extending beyond the distal end of the sleeve in the extended position;
- and
- a bias member coupled to the fixation member for biasing the fixation member to the retracted position.
A device for providing temporary fixation of a bone plate to two or more vertebrae comprising:
- an elongate, substantially cylindrical sleeve having an inner diameter, a proximal region and a distal region, the proximal and distal regions each having an open end, the distal region having a first area distal to the proximal region and a second area distal to the first area, the inner diameter of the sleeve being greater at the proximal region than at the distal region and greater at the first area than at the second area;
- a fixation member having a distal, bone-engaging end, a proximal end and a connection region therebetween, the distal end of the fixation member having a threaded portion, the fixation member being movable between a retracted position and an extended position, and the distal, bone-engaging end of the fixation member extending beyond the distal end of the sleeve in the extended position;
- and
- a bias member circumscribed about the fixation member for biasing the fixation member to the retracted position, the bias member surrounding at least the threaded portion of the distal, bone-engaging end of the fixation member.
A device for providing temporary fixation of an implantable medical device to bone, comprising:
- an elongate sleeve having a proximal region and a distal region, each having an open end;
- a fixation member for securing the implantable medical device to bone, the fixation member having a distal, bone-engaging end and a proximal end and being movable between a retracted position and an extended position, at least a portion of the distal, bone-engaging end of the fixation member extending beyond the distal end of the sleeve in the extended position;
- and
- a bias member coupled to the fixation member for biasing the fixation member to the retracted position.
Dependencies are inferred from the claim text.