Agraffe for osteosynthesis
OwnerJacques P. Laboureau, Georges Comteinventors
Life of this patent
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Abstract
An agraffe or staple-shaped element for osteosynthesis intended for fixing the focus of an osteotomy while awaiting consolidation of web from which issue two lateral arms having pointed ends adapted to penetrate in the bone. The web of the agraffe comprises two parts inclined with respect to each other and forming an outwardly open obtuse angle. Each of the lateral arms of the agraffe presents, near its zone of join with the web, fins projecting from the front faces of this arms, such fins reinforcing the anchoring of the agraffe in the zone.
Claims20
A generally substantially U-shaped staple for osteosynthesis intended for fixing the focus of an osteotomy while awaiting consolidation of the bone, comprising:
- a web from which issue two lateral arms having pointed ends adapted to penetrate into the bone;
- said web comprising only two parts inclined with respect to each other and forming an outwardly open obtuse angle without any step perfectly adapted to the outer profile of the bone for direct contact therewith;
- and
- each of said lateral arms having outwardly projecting fins, and said fins projecting solely from at least one of the front faces of each said arm and ensuring a very firm anchoring in the hard outer part of the bone.
The staple for osteosynthesis according to claim wherein said pointed ends have a flat outer side coextensive with an outer side of said lateral arms from which they extend, said pointed ends each having a beveled surface extending from said flat outer side with said bevels being inclined inwardly from a lowermost point of each of said lateral arms to an uppermost point in a direction towards said web.
A staple for osteosynthesis intended for fixing the focus of an osteotomy while awaiting consolidation of the bone, which is generally substantially U-shaped, comprising:
- a web from which issue two lateral arm means having pointed ends adapted to penetrate into the bone for increasing the pressure between two sides of the osteotomy, each of said arm means including an inner face, an outer face, a front and a rear face between said inner and outer faces;
- said web comprising solely two parts inclined with respect to each other, each of said parts being joined together at one end thereof and forming the apex of an outwardly open obtuse angle free of any step therebetween;
- and
- each of said lateral arm means including an arm joined to said other end of said parts and each of said arm means including at least one fin means on one of said front and said rear faces for increasing the contact surface between the staple and the bone upon exerting pressure.
Dependencies are inferred from the claim text.