A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 17/86 (2006.01) A61B 17/88 (2006.01) F16B 23/00 (2006.01) F16B 31/02 (2006.01) A61B 19/00 (2006.01)
Patent
CA 2244217
The invention concerns a screw for insertion into a bone, in particular for securing plates which help to fix bone parts. The screw has a body comprising a threaded section and a head which adjoins the latter directly or indirectly and on which a device for screwing the screw body into the bone is provided. The screw is characterized in that the device for screwing in the screw body is a shank which is integral with the head, at least one predetermined breaking point being formed in the connection region between the head and shank. The invention further concerns a tool for removing this screw or its screw body.
L'invention concerne une vis à introduire dans un os et servant notamment à fixer des plaques destinées à faciliter la fixation de fragments osseux. Cette vis comprend un corps comportant une partie filetée et une tête raccordée directement ou indirectement dessus, sur laquelle est prévu un dispositif destiné à visser le corps de cette vis dans l'os concerné. Cette vis se caractérise en ce que le dispositif de vissage du corps de la vis consiste en une tige ne formant qu'un seul tenant avec la tête, au moins un point destiné à la rupture étant formé dans la zone de raccordement entre la tête et la tige. L'invention concerne en outre un outil permettant d'extraire ladite vis ou ledit corps de vis de l'os.
Durr Walter
Kirsch Axel
G. Ronald Bell & Associates
Kirsch Axel
LandOfFree
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