Cylindrical hemi-lunar parallel array threaded disc prosthesis,申请号AU19990058135-传众专利搜索

Cylindrical hemi-lunar parallel array threaded disc prosthesis

申请公布号：AU5813599(A)

申请号：AU19990058135

申请日期：1999.09.03

申请公布日期：2000.03.27

申请人：

SPINAL DYNAMICS CORPORATION

发明人：VINCENT BRYAN;KIP CARVER

分类号：A61F2/00;A61F2/30;A61F2/44;A61F2/46

主分类号：A61F2/00

摘要：A small profile, cylindrically or conically shaped prosthetic disc device (20) is provided. The device housing is comprised of two longitudinally split hollow halves (22, 24), between which is contained a hemi-lunar shaped resilient body (41) which may be of a polymeric type, or it may contain hydrogel. This hemi-lunar disc lies in concave surfaces (51) located on the interior of each side of the split cylindrical housing. The housing halves (22, 24), even under maximum physiological loads, do not contact one another directly. Threads (31) on the exterior surface (30) of the cylindrical housing (20) facilitates insertion, and retention in theprepared bone opening.