Quantitative assessment of prosthesis press-fit fixation
OwnerKambiz Behzadiinventor
Life of this patent
Estimating the term…
Abstract
A system and method for quantitatively assessing a press fit value (and provide a mechanism to evaluate optimal quantitative values) of any implant/bone interface regardless the variables involved including bone site preparation, material properties of bone and implant, implant geometry and coefficient of friction of the implant-bone interface without requiring a visual positional assessment of a depth of insertion. The following description is presented to enable one of ordinary skill in the art to make and use the invention and is provided in the context of a patent application and its requirements.
Claims8
A method for installing a prosthesis into a cavity prepared in a portion of bone, the cavity configured for a pressfit fixation, comprising:
- a) communicating an application force F1 to the prosthesis;
- b) monitoring a rigidity factor and an elasticity factor of the prosthesis within the cavity during application of the application force F1;
- c) repeating a)-b) until said rigidity factor meets a first predetermined goal;
- d) increasing, when said rigidity factor meets said first predetermined goal, said application force F1;
- e) repeating a)-d) until said elasticity factor meets a second predetermined goal;
- and
- f) suspending e) when said elasticity factor meets said second predetermined goal and said rigidity factor meets said first predetermined goal.
Dependencies are inferred from the claim text.