Caleb Lee Stoll,Allison Christine Capote,Randall G. Mast
申请号：
US16295183
公开号：
US20190274740A1
申请日:
2019.03.07
申请国别(地区):
US
年份:
2019
代理人:
摘要：
Spinal surgical procedures can benefit from a rod reduction instrument with a ratchet lock-out mechanism. The instrument can include an inner shaft, an outer housing and a ratchet mechanism. The inner shaft can include a threaded proximal portion and a distal end that includes a plurality of engagement members adapted to receive a pedicle screw. The outer housing can be slidably received over the inner shaft, and include a top sleeve and a bottom sleeve. The top sleeve can include the ratchet mechanism to selectively engage the threaded proximal portion of the inner shaft and the bottom sleeve can engage a connecting rod. The ratchet mechanism can include an engagement feature to selectively engage the threaded proximal portion of the inner shaft, and a locking mechanism to selectively lock the engagement feature of the ratchet mechanism against the threaded proximal portion of the inner shaft.
