公开(公告)号：WO1995028880A1

公开(公告)日：1995-11-02

申请号：PCT/US1995004995

申请日：1995-04-24

Applicant: BOARD OF REGENTS THE UNIVERSITY OF TEXAS SYSTEM

Inventor： BOARD OF REGENTS THE UNIVERSITY OF TEXAS SYSTEM ,  ATHANASIOU, Kyriacos ,  CONSTANTINIDES, George ,  LANCTOT, Dan, R.

IPC: A61B05/103

CPC classification number: A61B5/4514 ,  A61B5/0053 ,  A61B5/103 ,  A61B5/224 ,  A61B5/4528 ,  G01N3/42 ,  G01N2203/0071 ,  G01N2203/0089 ,  G01N2203/0206 ,  G01N2203/0208 ,  G01N2203/0244 ,  G01N2203/0676

Abstract: This invention is an articular cartilage evaluator (110) for determining the index of structural integrity of articular cartilage. This computer based system measures deformation or reaction force of articular cartilage through closed loop control of a testing tip (122) and allows the measurement of peak force, stress relaxation behavior or creep behavior in vivo and in situ. The evaluator (110) also allows the calibration of the tissue's material properties. A calibrator (300) is also provided for calibrating the evaluator and removing a replaceable tip assembly (123).

Abstract translation: 本发明是用于确定关节软骨的结构完整性指数的关节软骨评估器（110）。 这种基于计算机的系统通过测试尖端（122）的闭环控制来测量关节软骨的变形或反作用力，并允许在体内和原位测量峰值力，应力松弛行为或蠕变行为。 评估器（110）还允许校准组织的材料特性。 还提供校准器（300），用于校准评估器并移除可替换的尖端组件（123）。