Bhp ablation method and apparatus

Details Bhp ablation method and apparatus Bhp ablation method and apparatus

A - Human Necessities

61

N

A61N 5/00 (2006.01) A61B 18/00 (2006.01) A61B 18/14 (2006.01) A61B 18/18 (2006.01) A61N 1/06 (2006.01) A61N 1/40 (2006.01) A61N 5/04 (2006.01) A61B 17/00 (2006.01) A61B 17/24 (2006.01) A61B 19/00 (2006.01) A61M 25/00 (2006.01) A61B 17/38 (1995.01) A61B 17/39 (1995.01)

Patent

CA 2162887

A method and an apparatus (14) is disclosed for deliv- ering controlled heat to perform ablation to treat the benign prosthetic hypertrophy or hyperplasia (BPH). According to the method and the apparatus (14), the energy is transferred directly into the tissue mass (6) which is to be treated in such a manner as to provide tissue ablation without damage to surrounding tissues. Automatic shutoff occurs when any one of a number of surrounding areas to include the urethra (2) or surrounding mass or the adjacent organs (6) exceed pre- determined safe temperature limits. The constant application of the radio frequency energy over a maintained determined time provides a safe procedure which avoids electro-surgical and other invasive operations while providing fast relief to BPH with a short recovery time. The procedure may be accomplished in a doctor's office without the need for hos- pitalization or surgery.

L'invention concerne un procédé et un dispositif (14) servant à appliquer une chaleur régulée, de façon à effectuer une ablation, afin de traiter l'hypertrophie ou l'hyperplasie prostatique bénigne (BPH). D'après le procédé et le dispositif (14), l'énergie est transférée directement dans la masse du tissu sans endommager les tissus environnants. Le dispositif s'arrête automatiquement quand une parmi plusieurs zones environnantes, y compris l'urètre (2), ou la masse environnante, ou les organes contigus (6), dépasse les limites de température de sécurité prédéterminées. L'application constante de l'énergie de radio-fréquence pendant une durée constante déterminée permet de mettre le procédé en application en toute sécurité, ce qui évite des interventions électrochirurgicales ou d'autres opérations invasives, tout en soulageant rapidement le patient en lui imposant un temps limité de convalescence. L'intervention peut s'effectuer dans le cabinet du médecin, sans qu'il soit nécessaire d'hospitaliser le malade.

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