Institut National De La Sante Et De La Recherche Medicale

Universitë De Bordeaux

Centre Hospitalier Universitaire De Bordeaux

Koninklijke Philips Corporation N.v.

Bruno Quesson

Fanny Vaillant

Pierre Bour

Fabrice Marquet

Frédéric Vimeux

Chrétien Moonen

Remi Dubois

An ultrasound cardiac stimulation system includes: a system for measuring the heart electrical activity; a system for generating a beam of focussed ultrasound signals focussed on a targeted zone, the signals being calibrated to generate electrical stimulation in a zone of the heart, the beam generation being synchronised with a first selected time of the electrocardiogram, the generation of the beam corresponding to a pulse with a duration of less than 80 ms; a system for locating the targeted zone coupled with a system for positioning the system for generating the focussed beam to control the beam of focussed ultrasound signals in the targeted zone, the location system being synchronised with the system for generating the beam of focussed signals; a single monitoring system following in real time a temperature and tissue deformation in the targeted zone, the monitoring system taking measurements in synchronisation with the rhythm of the electrocardiogram.

Focused ultrasound cardiac stimulation system, portable device and cardiac stimulation, and associated methods

A system for ablating or monitoring a zone of the heart, includes a system to measure the heart electrical activity; a phased array for generating a beam of focussed ultrasound signals on a targeted zone of the heart; an imaging system determining an image of a transcostal wall projected in an image plane of the phased array by taking into consideration a position and direction of the phased array and making it possible to deactivate elements of the phased array in accordance with the position of the elements with regard to the position of the projected image of the transcostal wall; a positioning system to control the position of a focussed zone of a beam of focussed ultrasound signals on the targeted zone, a monitoring system to measure a temperature and tissue deformation in the targeted zone; and a device for measuring a level of cavitation in the targeted zone.

System for the ablation or the monitoring of a zone of the heart by ultrasounds and associated methods

The invention concerns an assembly for heat treatment of a region of a biological tissue () comprising energy-generating means () to supply energy to the region; means () for measuring and recording spatial temperature distribution in said region; a control unit () comprising means for point-to-point digital processing of the temperature distribution in the region. The invention is characterised in that the energy-generating means comprise means() for spatial and temporal distribution of the power available to them on said region, the control unit () comprising means (), based on the temperature distribution, for controlling the amount and distribution of energy supplied by the generating means ().

Assembly for heat treatment of biological tissues

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Bordeaux, France

Bruno Quesson