Bone plate having elevations permitting countersinking of bone screws

US8366751B2 · kind B2 · utility

Assignee

• MEDARTIS AG · CH

Inventors

• Joachim Pfefferle · Münstertal, DE
• Dirk Thiel · Staufen, DE
• Carl Peter Cornelius · Munich, DE

Key dates

• Filing date: Aug 31, 2007
• Grant date: Feb 5, 2013
• Expiry date: Apr 3, 2030

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2017/00004
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A bone plate has at least one plate hole whose hole axis runs obliquely in relation to the underside of the plate. The hole axis has an elevation angle (ε) in relation to the plane of the underside of the plate which is different from 90°, and in which plate the upper face of the plate runs at least partially not parallel to the underside of the plate, at least in the area around the plate hole, but instead runs at a right angle to the hole axis. The plate hole is designed such that a bone screw, which is screwed into the plate hole, can be blocked in the plate hole at an angle selected from a predefined angle range around the elevation angle (ε) of the hole axis of the plate hole only by cooperation of the plate hole with the bone screw, without other additional auxiliary means.