公开(公告)号：US20170086886A1

公开(公告)日：2017-03-30

申请号：US14871125

申请日：2015-09-30

申请人： Amendia, Inc.

发明人： Jim Duncan ,  Daniel Sayger ,  Kenneth Richard Barra

IPC分类号： A61B17/70

CPC分类号： A61B17/7037 ,  A61B17/7076

摘要： A modular head bone screw assembly has a bone screw, a tulip and a saddle. The saddle is positioned in a recess inside of the tulip. The saddle has a proximal end for engaging a rod and a distal end for receiving a hemispherical or at least partial hemispherical head of the bone screw. The saddle is sized to move axially inside the tulip. The saddle has a plurality of fingers separated by slots extending from near the proximal end through the distal end in an initial un-loaded position and upon insertion of the tulip over the head of the bone screw, the saddle moves proximally over the head simultaneously causing the fingers to move past a maximum diameter of the hemispherical head and upon tightening the rod by a set screw, the fingers locking the bone screw into the tulip.

公开(公告)号：US09820780B2

公开(公告)日：2017-11-21

申请号：US14871267

申请日：2015-09-30

申请人： Amendia, Inc.

发明人： Jim Duncan ,  Daniel Sayger ,  Kenneth Richard Barra

IPC分类号： A61B17/70 ,  A61B17/00

CPC分类号： A61B17/7032 ,  A61B17/7035 ,  A61B17/7041 ,  A61B17/7091 ,  A61B17/863 ,  A61B2017/00526

摘要： An angled offset tulip has an angled offset tulip with a rod receiving portion and a bone screw receiving portion. The bone screw receiving portion has a distal opening on a distal end. The rod receiving portion is positioned offset a distance from a center of the distal opening and elevated above the distal opening to form an angle θ. The angle θ is defined as a line passing through the center of the distal opening and a slotted end center. The rod receiving portion has a slotted opening defined by a pair of sides, each side having a proximal end with threads for engaging a set screw to secure a rod. The angled offset tulip can be an angled offset tulip assembly having a collet for receiving, holding and fixing the head of a bone screw.

公开(公告)号：US20170086885A1

公开(公告)日：2017-03-30

申请号：US14871267

申请日：2015-09-30

申请人： AMENDIA, INC.

发明人： Jim Duncan ,  Daniel Sayger ,  Kenneth Richard Barra

IPC分类号： A61B17/70

CPC分类号： A61B17/7032 ,  A61B17/7035 ,  A61B17/7041 ,  A61B17/7091 ,  A61B17/863 ,  A61B2017/00526

摘要： An angled offset tulip has an angled offset tulip with a rod receiving portion and a bone screw receiving portion. The bone screw receiving portion has a distal opening on a distal end. The rod receiving portion is positioned offset a distance from a center of the distal opening and elevated above the distal opening to form an angle θ. The angle θ is defined as a line passing through the center of the distal opening and a slotted end center. The rod receiving portion has a slotted opening defined by a pair of sides, each side having a proximal end with threads for engaging a set screw to secure a rod. The angled offset tulip can be an angled offset tulip assembly having a collet for receiving, holding and fixing the head of a bone screw.