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US 7,004,947 B2Granted
Surgical instrument for moving vertebrae
AssigneeEndius Incorporated
InventorsAlan E. Shluzas, Stephen J. Anderson, James J. Pagliuca, John D. Unger
Life of this patent
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Abstract
A surgical instrument extendable through a cannula for moving a first bone portion relative to a second bone portion includes a first portion having a longitudinal axis engageable with a first member connected with to the first bone portion. A second portion is engageable with a second member connected with the second bone portion. The second portion is movable relative to the first portion from a first position toward a second position to move the first and second bone portions away from each other. An actuator connected with the second portion moves the second portion relative to the first portion in a direction extending transverse to the longitudinal axis.
Claims48
A method of moving a first bone segment relative to a second bone segment in a body comprising:
- extending a surgical instrument having a first portion and a second portion through an access device comprising an elongate body having a longitudinal axis and having a proximal end and a distal end defining a working space accessible therethrough, the working space providing access to the first and second bone segments;
- engaging the first portion of the surgical instrument with a first member connected with the first bone segment, the first portion engaging the first member in a longitudinal direction, the first portion having a distal tip configured to mate axially with the proximal head of the first member;
- coupling the second portion of the surgical instrument with the second bone segment;
- and
- moving the second portion of the surgical instrument without moving the first portion of the surgical instrument and such that the second portion moves solely within the working space in a direction extending transverse to the longitudinal axis to move the first and second bone segments relative to each other.
2 more elements
A method of moving a first bone segment relative to a second bone segment in a body comprising:
- extending a surgical instrument having a first portion with a longitudinal axis and a second portion through a structure defining a working space adjacent the first and second bone segments;
- engaging the first portion of the surgical instrument with a first member connected with the first bone segment;
- engaging the second portion of the surgical instrument with a second member connected with the second bone segment;
- moving the second portion of the surgical instrument relative to the first portion in a direction extending transverse to the longitudinal axis to move the first and second bone segments relative to each other;
- pivoting the second portion relative to an actuator that moves the second portion relative to the first portion;
- moving the actuator relative to a third portion to move the second portion into engagement with the third portion and relative to the first portion;
- and
- engaging a lobe on the second portion that extends into a cavity on the third portion with the third portion to pivot the second portion relative to the actuator.
5 more elements
A method of moving a first bone segment relative to a second bone segment in a body comprising:
- extending a surgical instrument having a first portion with a longitudinal axis and a second portion through a structure defining a working space adjacent the first and second bone segments;
- engaging the first portion of the surgical instrument with a first member connected with the first bone segment;
- engaging the second portion of the surgical instrument with a second member connected with the second bone segment;
- moving the second portion of the surgical instrument relative to the first portion in a direction extending transverse to the longitudinal axis to move the first and second bone segments relative to each other;
- and
- rotating the first portion about the longitudinal axis of the first portion.
3 more elements
A method of moving a first bone segment relative to a second bone segment in a body comprising:
- extending a surgical instrument having a first portion with a longitudinal axis and a second portion through a structure defining a working space adjacent the first and second bone segments;
- engaging the first portion of the surgical instrument with a first member connected with the first bone segment;
- engaging the second portion of the surgical instrument with a second member connected with the second bone segment;
- moving the second portion of the surgical instrument relative to the first portion in a direction extending transverse to the longitudinal axis to move the first and second bone segments relative to each other;
- rotating a controller about the longitudinal axis to move an actuator that moves the second portion relative to the first portion relative to the first portion to move the second portion relative to the first portion;
- and
- engaging the actuator with the controller and axially moving the controller relative to the first portion to move the actuator in a direction extending parallel to the longitudinal axis.
4 more elements
A method of moving a first bone segment relative to a second bone segment in a body comprising:
- extending a surgical instrument having a first portion with a longitudinal axis and a second portion through a structure defining a working space adjacent the first and second bone segments;
- engaging the first portion of the surgical instrument with a first member connected with the first bone segment;
- engaging the second portion of the surgical instrument with a second member connected with the second bone segment;
- moving the second portion of the surgical instrument relative to the first portion in a direction extending transverse to the longitudinal axis to move the first and second bone segments relative to each other;
- and
- receiving a longitudinal member that extends between the first and second bone segments and is connected to one of the first and second bone segments in a recess in the second portion.
3 more elements
A method of moving a first bone segment relative to a second bone segment in body comprising:
- extending a surgical instrument having a first portion and a second portion through a structure defining a working space adjacent the first and second bone segments;
- engaging the first portion with a first member connected with the first bone segment;
- engaging the second portion with a second member connected with the second bone segment;
- moving the second portion relative to the first portion from a first position toward a second position to move the first and second bone segments away from each other;
- pivoting the second portion relative to an actuator that moves the second portion relative to the first portion;
- and
- moving the actuator relative to a third portion to pivot the second portion relative to the third portion;
- and
- moving the actuator relative to the third portion to move a lobe on the second portion extending into a cavity in the third portion into engagement with the third portion to pivot the second portion relative to the actuator and move the second portion relative to said first portion.
6 more elements
A method of moving a first bone segment relative to a second bone segment in a body comprising:
- extending a surgical instrument having a first portion and a second portion through an access device defining a working space adjacent the first and second bone segments;
- coupling the first portion with a first member connected with the first bone segment, the first member having a proximal head extending proximally from the first bone segment, the first portion having a distal tip configured to mate with the proximal head of the first member;
- coupling the second portion with a second member connected with the second bone segment;
- moving one of the first and second portions relative to one another from a first position toward a second position to move the first and second bone segments relative to each other;
- and
- configuring the surgical instrument with a third portion that at least partially defines a passage through which the first portion extends and an actuator that moves the second portion relative to the first portion and moving the actuator relative to the third portion to move the second portion relative to the first portion.
3 more elements
A method of moving a first bone segment relative to a second bone segment in a body comprising:
- extending a surgical instrument having a first portion and a second portion through an access device defining a working space adjacent the first and second bone segments;
- coupling the first portion with a first member connected with the first bone segment, the first member having a proximal head extending proximally from the first bone segment, the first portion having a distal tip configured to mate with the proximal head of the first member;
- coupling the second portion with a second member connected with the second bone segment;
- moving one of the first and second portions relative to one another from a first position toward a second position to move the first and second bone segments relative to each other;
- and
- rotating a controller about a longitudinal axis of the first portion to move an actuator that moves the second portion relative to the first portion.
3 more elements
A method of moving a first bone segment relative to a second bone segment in body comprising:
- extending a surgical instrument having a first portion and a second portion through a structure defining a working space adjacent the first and second bone segments;
- engaging the first portion with a first member connected with the first bone segment;
- engaging the second portion with a second member connected with the second bone segment;
- moving the second portion relative to the first portion from a first position toward a second position to move the first and second bone segments away from each other;
- rotating a controller about a longitudinal axis of the first portion to move an actuator that moves the second portion relative to the first portion;
- and
- axially moving the controller relative to the first portion and into engagement with the actuator to move the actuator in a direction extending parallel to a longitudinal axis of the first portion.
4 more elements
A method of moving a first bone segment relative to a second bone segment in a body comprising:
- extending a surgical instrument having a first portion and a second portion through an access device defining a working space adjacent the first and second bone segments;
- coupling the first portion with a first member connected with the first bone segment, the first member having a proximal head extending proximally from the first bone segment, the first portion having a distal tip configured to mate with the proximal head of the first member;
- coupling the second portion with a second member connected with the second bone segment;
- moving one of the first and second portions relative to one another from a first position toward a second position to move the first and second bone segments relative to each other;
- and
- manipulating the first portion to secure the first member to a longitudinal member to maintain the relative positions of the first and second bone segments.
3 more elements
Dependencies are inferred from the claim text.