公开(公告)号：US20230301689A1

公开(公告)日：2023-09-28

申请号：US17704496

申请日：2022-03-25

申请人： GLOBUS MEDICAL, INC.

发明人： Caelan Allen ,  Matthew Bechtel ,  Noah Hansell ,  Stefan Lamers ,  David Leff ,  David Peretz ,  George Yacoub

IPC分类号： A61B17/70

CPC分类号： A61B17/7082 ,  A61B17/7032 ,  A61B17/7038 ,  A61B17/7037 ,  A61B17/863

摘要： An orthopedic fixation device for affixing the screw head of a polyaxial pedicle screw has a tulip, a saddle, and a ring. The tulip has an interior cavity and two opposed threaded arms and a lower ledge. The saddle is inserted into the tulip body, and has a U shaped groove for receiving a spinal fixation rod. The ring has a diameter that is smaller than the widest diameter of the screw head, and is formable into a diameter larger than the widest diameter of the screw head when the screw head is pushed into the ring. The ring has a connection portion that mates with a connection portion of the saddle. The screw head is clamped within the tulip body between the saddle and the ring when a cap is threaded between the tulip arms.

公开(公告)号：US20230301686A1

公开(公告)日：2023-09-28

申请号：US17704567

申请日：2022-03-25

申请人： GLOBUS MEDICAL, INC.

发明人： Caelan Allen ,  Matthew Bechtel ,  Noah Hansell ,  Stefan Lamers ,  David Leff ,  David Peretz ,  George Yacoub

IPC分类号： A61B17/70 ,  A61B17/86

CPC分类号： A61B17/7034 ,  A61B17/8685 ,  A61B17/8695

摘要： An orthopedic fixation device for affixing the screw head of a polyaxial pedicle screw has a tulip, a saddle, and a ring. The tulip has an interior cavity and two opposed threaded arms and a lower ledge. The saddle is inserted into the tulip body, and has a U shaped groove for receiving a spinal fixation rod. The ring has a diameter that is smaller than the widest diameter of the screw head, and is formable into a diameter larger than the widest diameter of the screw head when the screw head is pushed into the ring. The ring has a connection portion that mates with a connection portion of the saddle. The screw head is clamped within the tulip body between the saddle and the ring when a cap is threaded between the tulip arms.