发明申请
- 专利标题: POLYAXIAL BONE FIXATION ELEMENT
- 专利标题(中): 多晶骨固定元件
-
申请号: US12669224申请日: 2008-07-21
-
公开(公告)号: US20100198272A1公开(公告)日: 2010-08-05
- 发明人: Thomas Keyer , Joseph Capozzoli , Eric McDivitt
- 申请人: Thomas Keyer , Joseph Capozzoli , Eric McDivitt
- 国际申请: PCT/US08/70670 WO 20080721
- 主分类号: A61B17/86
- IPC分类号: A61B17/86
摘要:
The present invention is directed a polyaxial bone fixation element for use in spinal fixation to interconnect a longitudinal spinal rod with a patient's vertebra. The polyaxial bone fixation element preferably includes a bone anchor, a collet, a body, and a locking cap. The polyaxial bone fixation element preferably enables in-situ assembly. That is, the polyaxial bone fixation element is preferably configured so that in use, the bone anchor may be secured to the patient's vertebra prior to being received within the body. Accordingly, the polyaxial bone fixation element enables a surgeon to implant the bone anchor without the body to maximize visibility and access around the anchoring site. Once the bone anchor has been secured to the patient's vertebra, the body can be snapped-onto the bone anchor. The bone anchor preferably also includes a second tool interface so that a surgical instrument can be directly coupled to the bone anchor.
公开/授权文献
- US08663298B2 Polyaxial bone fixation element 公开/授权日:2014-03-04