Method and apparatus for monitoring and/or controlling the...

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G01N 27/00 (2006.01) A61F 2/46 (2006.01) A61L 27/16 (2006.01) C08J 3/28 (2006.01) C08L 33/12 (2006.01) G01N 27/04 (2006.01) G01N 27/22 (2006.01)

Patent

CA 2682367

A system for monitoring a cement that undergoes polymerization during curing such as most bone and dental cements by passing an electrical signal through the cement to determine the swelling phase, the initiation of polymerization of the cement and the effective working phase. The system further can control the swelling phase to reduce the time from the mixing of the cement to the initiation of the polymerization by using a ultrasonic signal or by heating the cement and can control the effective working phase after the polymerization has been initiated in order to prolong the working phase by cooling the cement.

L'invention concerne un système pour surveiller un ciment qui subit une polymérisation pendant le durcissement, tel que la plupart des ciments pour os et dentaires, par le passage d'un signal électrique à travers le ciment pour déterminer la phase de gonflement, l'amorçage de la polymérisation du ciment et la phase de travail effectif. Le système permet également de contrôler la phase de gonflement pour réduire le temps à partir du mélange du ciment jusqu'à l'amorçage de la polymérisation par l'utilisation d'un signal ultrasonore ou par le chauffage du ciment, et il permet de contrôler la phase de travail effectif après que la polymérisation a été amorcée de façon à prolonger la phase de travail par le refroidissement du ciment.

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