Assembly for heat treating biological tissue

Details Assembly for heat treating biological tissue Assembly for heat treating biological tissue

A - Human Necessities

61

N

A61N 7/02 (2006.01) A61N 1/40 (2006.01)

Patent

CA 2563576

An assembly (1) for heat treating an area (60) of biological tissue, including energy generating means (20) for supplying energy to a focal point (P) in said area (60), means (10) for measuring the spatial temperature distribution in said area, and a control unit (40) for controlling the movement of the focal point (P) along a predetermined path to give a spatial temperature distribution consistent with a pre-set distribution, characterised in that, as the focal point (P) moves along the path, the control unit (40) controls the distribution of the energy provided by the generating means (20) depending on the measured temperature distribution and the pre-set distribution, in accordance with a control law including a proportional-integral-derivative term.

L'invention concerne un ensemble (1) de traitement thermique d'une région 60 d'un tissu biologique comprenant : des moyens générateurs d'énergie (20) pour fournir de l'énergie en un point focal (P) dans la région (60), des moyens (10) pour mesurer la distribution spatiale de température dans ladite région, une unité de contrôle (40) apte à commander le déplacement du point focal (P) le long d'une trajectoire prédéterminée en vue d'obtenir une distribution spatiale de température conforme à une distribution de consigne, caractérisé en ce qu'au cours du déplacement du point focal (P), l'unité de contrôle (40) est apte à commander la répartition d'énergie fournie par les moyens générateurs (20) le long de la trajectoire, en fonction de la distribution de température mesurée et de la distribution de consigne, selon une loi de régulation comprenant un terme Proportionnel-Intégral-Dérivé.

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