Cartilage indentor instrument

Details Cartilage indentor instrument Cartilage indentor instrument

1998-04-09

2000-05-30

O'Connor, Cary

Surgery

Diagnostic testing

Measuring anatomical characteristic or force applied to or...

73 81, A61B 5103

Patent

active

060686049

ABSTRACT:
An instrument and technique for measuring the compressive properties of a body (e.g., articular cartilage) are disclosed. The instrument includes an elongated probe, a biasing assembly for applying a pre-determined pre-load to the body to establish a measurement reference at the predetermined pre-load, an actuator to move the elongated probe to apply a compressive force to the body, and a measurement device which measures displacement of the elongated probe relative to the measurement reference.

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A. C. Swann et al., "Improved Techniques for Measuring the Indentation and Thickness of Articular Cartilage", Proc Instn Mech Engrs vol. 203, 1989.
D.E.T. Shepherd et al., "A technique for measuring the compressive modulus of particular cartilage under . . . preliminary results", Proc Instn Mech Engrs vol. 211, Part H, 1997.

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