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Tool for holding or guiding a receiving part for connecting a shank of a bone anchoring element to a rod
专利权人:
发明人:
申请号:
EP09004848.9
公开号:
EP2085040B1
申请日:
2005.05.27
申请国别(地区):
EP
年份:
2012
代理人:
摘要:
A receiving part for connecting a shank of a bone anchoring element to a rod is provided,the receiving part (1) comprisinga first end (2) and a second end (3),a recess (4) having a substantially U-shaped cross section, said recess (4) extending from the first end (2) in direction of the second end (3) forming two legs (5, 6) open at the first end (2), said recess (4) defining a channel to receive said rod (7), said channel having a longitudinal axis (L),said legs (5, 6) having an inner thread (9) to receive a securing element (10) having an outer thread cooperating with said inner thread,wherein said legs (5, 6) are provided with stiffening structures (11, 12, 15 11, 12, 15 115). In an embodiment, said stiffening structures are formed by the wall thickness of the outer edges of said legs (5, 6) being larger than the wall thickness of said legs (5, 6) at a location closest to the central axis (M) of the receiving part.
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