ROD REDUCER
First Claim
Patent Images
1. A rod reducer apparatus comprising:
- a housing having an opening;
a shaft disposed through the opening, the shaft having threads formed thereon;
an anvil coupled to the shaft;
a button slidably disposed in the housing and transitionable between a first position wherein the threads of the shaft are engaged with threads on an inner surface of the button and a second position wherein the threads of the shaft are spaced apart from the threads on the inner surface; and
first and second arm members coupled to the housing, the first and second arm members configured to engage a bone screw, the first and second arms movable towards a parallel configuration as the anvil is advanced away from the housing,wherein rotation of the shaft with the button in the first position translates into linear movement of the shaft relative to the housing and linear movement of the shaft with the button in the second position is independent of shaft rotation.
2 Assignments
0 Petitions
Accused Products
Abstract
A rod reducer apparatus is disclosed and includes a housing, an anvil coupled to a shaft, a plurality of arm members, and a button. The housing has an opening extending therethrough for receiving the shaft. The anvil is coupled to one end of the shaft. The button is slidably disposed in the housing and transitionable between first and second positions. The button is engageable with the shaft such that rotation of the shaft is translated into linear movement of the anvil.
-
Citations
19 Claims
-
1. A rod reducer apparatus comprising:
-
a housing having an opening; a shaft disposed through the opening, the shaft having threads formed thereon; an anvil coupled to the shaft; a button slidably disposed in the housing and transitionable between a first position wherein the threads of the shaft are engaged with threads on an inner surface of the button and a second position wherein the threads of the shaft are spaced apart from the threads on the inner surface; and first and second arm members coupled to the housing, the first and second arm members configured to engage a bone screw, the first and second arms movable towards a parallel configuration as the anvil is advanced away from the housing, wherein rotation of the shaft with the button in the first position translates into linear movement of the shaft relative to the housing and linear movement of the shaft with the button in the second position is independent of shaft rotation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A method of reducing a spinal rod into a bone screw comprising:
-
providing a rod reducer apparatus including; a housing; a shaft disposed through the housing; an anvil coupled to the shaft; a button transitionable between a first position and a second position; and first and second arm members coupled to the housing and configured to engage a bone screw, wherein rotation of the shaft with the button in the first position translates into linear movement of the shaft relative to the housing and linear movement of the shaft with the button in the second position is independent of shaft rotation; coupling the rod reducer apparatus to the bone screw; positioning the spinal rod between the anvil, the first and second arm members, and the screw housing of the bone screw; transitioning the button of the rod reducer apparatus from the first position to the second position; sliding the shaft, and anvil attached thereto, distally such that the arm members grasp the bone screw; and sliding the shaft and anvil distally such that the anvil comes into contact with the spinal rod. - View Dependent Claims (13, 14, 15, 16, 17, 18)
-
-
19. A kit comprising:
-
a rod reducer apparatus including, a housing having an opening; a shaft disposed through the opening; an anvil coupled to the shaft; a button slidably disposed in the housing and transitionable between a first position and a second position; and first and second arm members coupled to the housing and configured to engage a bone screw, wherein rotation of the shaft with the button in the first position translates into linear movement of the shaft relative to the housing and linear movement of the shaft with the button in the second position is independent of shaft rotation; a plurality of bone screws; and at least one spinal rod.
-
Specification