Back to results
US 11,596,455 B2Granted
Reduction instrument, surgical assembly including a reduction instrument and related method
AssigneeZimmer Biomet Spine, Inc.
InventorsJohn Christian Barrett, Michal Zentko, David Barry, Matthew Tobias Jacobs
Life of this patent
Estimating the term…
Abstract
A surgical instrument for reducing a rod into a saddle of a fixation member includes a distal end for engaging the saddle and a proximal end. A reducing device is disposed between the distal end and the proximal end. The reducing device is operative to reduce the rod into the saddle. The reducing device defines a throughbore. The throughbore provides access there through by a first drive member to secure a plug to the saddle.
Claims20
A method of using a rotation instrument in combination with a rod reduction instrument, the method comprising:
- linearly sliding a mating portion of the rotation instrument over a proximal end of the rod reduction instrument, wherein the mating portion includes a first arm that is shaped to engage the proximal end of the rod reduction instrument with a single degree of freedom, and wherein the mating portion further includes a first flange projecting from a body of the mating portion;
- engaging a latching portion of a lever within a coupling system on the rotation instrument with a portion of the proximal end of the rod reduction instrument to secure the rotation instrument in relationship to the rod reduction instrument, wherein the latching portion is disposed at least partially within the first flange when the rotation instrument is secured relative to the rod reduction instrument;
- and
- manipulating a proximal end of the rotation instrument to impart a rotational force on the rod reduction instrument.
1 more element
A method, comprising:
- engaging a saddle portion of a pedicle screw and a connecting rod with a rod reduction instrument;
- coupling a mating portion of a rotation instrument to a proximal end of the rod reduction instrument, wherein the mating portion includes a first arm that is shaped to engage the proximal end of the rod reduction instrument along a single degree of freedom, and wherein the mating portion further includes a first flange extending from a body of the mating portion;
- latching a lever within a coupling system on the rotation instrument with a portion of the proximal end of the rod reduction instrument to secure the rotation instrument in relationship to the rod reduction instrument, wherein a latching portion of the lever is disposed at least partially within the first flange when the rotation instrument is secured relative to the rod reduction instrument;
- and
- manipulating a proximal end of the rotation instrument to impart a rotational force through the rod reduction instrument onto the pedicle screw.
2 more elements
A method, comprising:
- capturing a connecting rod within a distal portion of a rod reduction instrument;
- coupling the rod reduction instrument to a saddle portion of a pedicle screw;
- linearly advancing a mating portion of a rotation instrument over a proximal end of the rod reduction instrument, wherein the mating portion includes a first arm that is shaped to receive the proximal end of the rod reduction instrument only along an axis of advancement, and wherein the mating portion further includes a first flange;
- engaging a lever within a coupling system on the rotation instrument with a portion of the proximal end of the rod reduction instrument to secure the rotation instrument in relationship to the rod reduction instrument, wherein the lever includes a latching portion that is positioned at least partially within the first flange when the rotation instrument is secured relative to the rod reduction instrument;
- and
- manipulating a proximal end of the rotation instrument to impart a rotational force on the rod reduction instrument.
3 more elements
Dependencies are inferred from the claim text.