| 发明名称 |
INSTRUMENT FOR INSERTING A BONE ANCHORING ELEMENT AND SYSTEM OF SUCH AN INSTRUMENT AND A POLYAXIAL BONE ANCHORING ELEMENT |
| 摘要 |
An instrument for inserting a bone anchoring element into a bone is provided, the instrument including a shaft (2) having an end portion (23, 23′) for engaging the bone anchoring element and for transferring torque to the bone anchoring element (1, 1′) and a longitudinal axis defining an axis of rotation (R);
a cutting member (4, 4′) connected to the shaft (2) with cutting portions (45) that are configured to cut bone material;wherein the cutting member (4, 4′) has an outer diameter (D) defined by the cutting portions (45) that is substantially the same or larger than an outer diameter (dd) of a receiving part (500) of the polyaxial bone anchor in a region at a bottom end (500b) of the receiving part. |
| 申请公布号 |
US2014249532(A1) |
申请公布日期 |
2014.09.04 |
| 申请号 |
US201414194319 |
申请日期 |
2014.02.28 |
| 申请人 |
Biedermann Lutz;Matthis Wilfried;Dandanopoulos Dimosthenis;Ruff Nicole |
发明人 |
Biedermann Lutz;Matthis Wilfried;Dandanopoulos Dimosthenis;Ruff Nicole |
| 分类号 |
A61B17/88;A61B17/16 |
主分类号 |
A61B17/88 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. Instrument for inserting a bone anchoring element of a polyaxial bone anchor including
a shaft (2) having an end portion (23, 23′) for engaging the bone anchoring element and for transferring torque to the bone anchoring element (1, 1′) and a longitudinal axis defining an axis of rotation (R); a cutting member (4, 4′) connected to the shaft (2) with cutting portions (45) that are configured to cut bone material; wherein the cutting member (4, 4′) has an outer diameter (D) defined by the cutting portions (45) that is substantially the same or larger than an outer diameter (dd) of a receiving part (500) of the polyaxial bone anchor in a region at a bottom end (500b) of the receiving part. |
| 地址 |
VS-Villingen DE |
