EP 1139893 A1 20011010 - SELF-COMPRESSIVE OSTEOSYNTHESIS SCREW FOR SMALL BONE SURGERY
Title (en)
SELF-COMPRESSIVE OSTEOSYNTHESIS SCREW FOR SMALL BONE SURGERY
Title (de)
AUTOKOMPRESSIVE OSTEOSYNTHESESCHRAUBE ZUR CHIRURGIE VON KLEINEN KNOCHEN
Title (fr)
VIS D'OSTEOSYNTHESE AUTOCOMPRESSIVE POUR LA CHIRURGIE DE PETITS OS
Publication
Application
Priority
- FR 9903321 W 19991230
- FR 9816678 A 19981230
Abstract (en)
[origin: FR2787989A1] The invention concerns a self-compressive and atraumatic osteosynthesis screw (1), comprising a threaded proximal head (2), a body (4) forming a threaded distal portion (5) and, between the head and the distal part, a smooth section (6) of short length relatively to the distal portion length, the threading (7) thereof having a greater pitch than that of the proximal head threading (3), and a longitudinal channel (8) provided from one end to the other of said screw to receive a guide pin; said screw comprises means enabling it to fix small bones or small bone fragments of the skeleton after an osteotomy or a fracture, and in particular one of the five metatarsals (13, 14) of a human foot, said means comprising a threading diameter (d1) of the distal portion (5) slightly greater than the diameter (d2) of the thread root (3) of the proximal head (2) and the diameter of the channel (8) ranges between about 0.8 and 1.0 mm. Said screw miniaturised compared to the BAROUK screws of prior art advantageously replaces them as well as the cleavable screws with self-rupturing end piece for all the small bones, and bone fragments, in particular the five metatarsal bones.
IPC 1-7
IPC 8 full level
A61B 17/58 (2006.01); A61B 17/86 (2006.01)
CPC (source: EP)
A61B 17/861 (2013.01); A61B 17/863 (2013.01); A61B 17/864 (2013.01); A61B 2017/565 (2013.01)
Citation (search report)
See references of WO 0040164A1
Designated contracting state (EPC)
CH DE GB IE IT LI
DOCDB simple family (publication)
FR 2787989 A1 20000707; FR 2787989 B1 20010713; AU 3049600 A 20000724; AU 776105 B2 20040826; EP 1139893 A1 20011010; JP 2002534151 A 20021015; WO 0040164 A1 20000713
DOCDB simple family (application)
FR 9816678 A 19981230; AU 3049600 A 19991230; EP 99964745 A 19991230; FR 9903321 W 19991230; JP 2000591924 A 19991230