Instruments for Use During Spine Surgery
First Claim
Patent Images
1. A surgical instrument for inserting a surgical device comprising:
- a body having an outer housing and a handle, the outer housing having a longitudinal body with a channel extending therethrough and a distal tip configured to engage the surgical device;
a shaft including a release shaft having a distal end configured to contact the surgical device and a second end, the shaft being housed within the channel of the outer housing, the shaft including a rack having a longitudinal body with a plurality of teeth;
a pinion having a wheel-like body with a plurality of teeth radially extending therefrom and configured to mate with the plurality of teeth of the rack, and a cam having a generally circular body with at least one projection which is rotatably attached to the pinion and the body; and
a trigger coupled to the handle and a linkage connecting the trigger to the second end of the shaft,wherein, when the trigger is initially depressed, the linkage moves the shaft and secures the surgical device to the distal tip.
1 Assignment
0 Petitions
Accused Products
Abstract
Surgical instruments and devices including drivers, inserters, and reducers. The driver includes a ratcheting mechanism configured to provide uni-directional motion when engaged. The inserter includes a rack, pinion, and cam system designed to secure an implant and release an implant in-situ. The reducer includes a geared system for persuading together surgical components and aligning misaligned vertebrae.
-
Citations
18 Claims
-
1. A surgical instrument for inserting a surgical device comprising:
-
a body having an outer housing and a handle, the outer housing having a longitudinal body with a channel extending therethrough and a distal tip configured to engage the surgical device; a shaft including a release shaft having a distal end configured to contact the surgical device and a second end, the shaft being housed within the channel of the outer housing, the shaft including a rack having a longitudinal body with a plurality of teeth; a pinion having a wheel-like body with a plurality of teeth radially extending therefrom and configured to mate with the plurality of teeth of the rack, and a cam having a generally circular body with at least one projection which is rotatably attached to the pinion and the body; and a trigger coupled to the handle and a linkage connecting the trigger to the second end of the shaft, wherein, when the trigger is initially depressed, the linkage moves the shaft and secures the surgical device to the distal tip. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. A surgical instrument for driving a fastening element, comprising:
-
an outer housing and a shaft contained within the outer housing, the shaft having a first end configured for engaging a fastener and a second end configured for providing a rotational force, a locking element connected to the shaft and having an engaging face with a first plurality of ratchet teeth, the locking element configured to move longitudinally along the shaft; the outer housing comprising a handle having a contacting face with a second plurality of ratchet teeth sized and dimensioned to correspond with the first plurality of ratchet teeth; and a locking button disposed on the locking element and configured to engage the shaft such that when the locking button is depressed, the first plurality of ratchet teeth on the engaging face are contacting the second plurality of ratchet teeth on the contacting face and a ratcheting mechanism is engaged. - View Dependent Claims (14, 15)
-
-
16. A surgical instrument for reducing a bone fastener toward a rod, comprising:
-
a reducing member extending between a proximal end and a distal end, a distal portion of the reducing member adapted to receive a portion of the bone fastener, and a proximal portion of the reducing member having a first plurality of gear teeth; an outer longitudinal member sized and shaped to receive the reducing member, and a handle comprising at least one trigger element, the at least one trigger element having a second plurality of gear teeth configured to cause translation of the reducing member with respect to the outer longitudinal member when a force is applied to the handle. - View Dependent Claims (17, 18)
-
Specification