Matthis, Wilfried,Biedermann, Lutz,Harms, Jürgen, Prof.
申请号：
EP05009856.5
公开号：
EP1593357B1
申请日:
2005.05.04
申请国别(地区):
EP
年份:
2017
代理人:
摘要：
The central element (1) is of a cylindrical shape and provided with a helical groove at its outer surface, creating a slight flexibility. A ring-shaped element (2) is attached to each of its edges. The elements (2) have toothed outer edges (3). Each tooth (3) has a plane crest. The rings (2) are provided with a multitude of diamond-shaped openings (4), adding to the flexibility of the device (10). All parts (1, 2) can be made of a rigid bio-compatible material.
