EP 4117556 A1 20230118 - SCREW, SYSTEM COMPRISING A SCREW AND A PLATE, AND METHOD FOR PRODUCING A SCREW
Title (en)
SCREW, SYSTEM COMPRISING A SCREW AND A PLATE, AND METHOD FOR PRODUCING A SCREW
Title (de)
SCHRAUBE, SYSTEM MIT EINER SCHRAUBE UND EINER PLATTE, SOWIE VERFAHREN ZUM HERSTELLEN EINER SCHRAUBE
Title (fr)
VIS, SYSTÈME DOTÉ D'UNE VIS ET D'UNE PLAQUE, AINSI QUE PROCÉDÉ DE FABRICATION D'UNE VIS
Publication
Application
Priority
- EP 20162460 A 20200311
- EP 2021056072 W 20210310
Abstract (en)
[origin: WO2021180799A1] The invention relates to a screw (1), preferably a bone screw, comprising a shank (2) with a tip (3), a head (4), and a thread (5). The shank also comprises a longitudinal axis (A). A group of radial cross-sectional areas (Q) of the head (4) run through the longitudinal axis (A) of the screw (1), the position of each radial cross-sectional area (Q) being defined by an azimuth angle (6) in a plane (E) perpendicular to the longitudinal axis (A). Each radial cross-sectional area (Q) has an area content that is defined by the longitudinal axis (A) and the outer face of the screw (8). The thread (5) extends into the head (4) in such a way that the area contents of the radial cross-sectional areas (Q') in a first azimuth angle range (9) are constant and the area contents of the radial cross-sectional areas (Q'') in a second azimuth angle range (10), different from the first, have a deviating, preferably smaller value than the area contents in the first azimuth angle range (9). The first azimuth angle range (9) is at most 350°, preferably at most 345°.
IPC 8 full level
A61B 17/86 (2006.01); A61B 17/80 (2006.01)
CPC (source: EP US)
A61B 17/8057 (2013.01 - EP US); A61B 17/8605 (2013.01 - EP US); A61B 17/866 (2013.01 - EP US); A61B 2017/8655 (2013.01 - EP)
Citation (search report)
See references of WO 2021180799A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
EP 3878387 A1 20210915; AU 2021235038 A1 20220929; BR 112022017273 A2 20221018; EP 4117556 A1 20230118; JP 2023517622 A 20230426; MX 2022011261 A 20221003; US 2023103083 A1 20230330; WO 2021180799 A1 20210916
DOCDB simple family (application)
EP 20162460 A 20200311; AU 2021235038 A 20210310; BR 112022017273 A 20210310; EP 2021056072 W 20210310; EP 21710292 A 20210310; JP 2022554647 A 20210310; MX 2022011261 A 20210310; US 202117910190 A 20210310