Invention Grant
- Patent Title: Revisable orthopedic anchor and methods of use
- Patent Title (中): 可修复骨科锚和使用方法
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Application No.: US13222389Application Date: 2011-08-31
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Publication No.: US09173683B2Publication Date: 2015-11-03
- Inventor: John Riley Hawkins , Alexander Grinberg , Michael Michielli
- Applicant: John Riley Hawkins , Alexander Grinberg , Michael Michielli
- Applicant Address: US MA Raynham
- Assignee: DePuy Synthes Products, Inc.
- Current Assignee: DePuy Synthes Products, Inc.
- Current Assignee Address: US MA Raynham
- Agency: Nutter McClennen & Fish LLP
- Main IPC: A61B17/84
- IPC: A61B17/84 ; A61B17/70 ; A61B17/04 ; A61F2/44 ; A61F2/46 ; A61B17/86 ; A61F2/30 ; A61F2/28

Abstract:
A revisable orthopedic anchor and method of use for removably securing an anchor in bone, such as compromised or degenerated bone, is described herein. In one embodiment, the anchor makes use of dual probes and vector divergence of the distal tips of the probes to achieve superior bone purchase and pull-out resistance. In such an embodiment, the probes can be inserted one at a time into a hole formed in, for example, the pedicle bone. After the probes are inserted and joined at the proximal end, they have a greater pull-out resistance than a threaded anchor. Removing the anchor involves separating the proximal heads and reversing the implantation process. As a result of the unique bone anchor design disclosed herein, the devices and methods of the present invention allow for less complicated implantation and removal of orthopedic anchors, all while providing enhanced bone purchase when implanted in a patient.
Public/Granted literature
- US20130053891A1 REVISABLE ORTHOPEDIC ANCHOR AND METHODS OF USE Public/Granted day:2013-02-28
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