Handpiece for transmyocardial vascularization...

A - Human Necessities – 61 – B

Patent

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A61B 18/20 (2006.01) A61B 17/00 (2006.01) A61B 18/00 (2006.01) A61B 19/00 (2006.01) A61B 17/36 (1990.01)

Patent

CA 2117423

A handpiece for use in transmyocardial revascularization heart-synchronized pulsed laser system includes a barrel (24) having a passage (62) for transmitting a laser beam; a surface (32) at the distal end of the barrel for contacting the wall of the heart (66); an aperture (26) located at the distal end of the barrel in the enlarged surface (32) for transmitting the laser beam; and means for focusing (42) the laser beam proximate to the aperture to vaporize the tissue of the heart wall and create a hole to the interior heart chamber.

Une pièce à main utilisée dans un système lase pulsé synchronisé par rapport au coeur de revascularisation transmyocardique comprend un cylindre (24) pourvu d'un passage (62) destiné à transmettre un faisceau laser; une surface (32) située à l'extrémité distale du cylindre et destinée à entrer en contact avec la paroi du coeur (66); une ouverture (26), située au niveau de l'extrémité distale du cylindre dans la surface élargie (32) et permettant de transmettre le faisceau laser; et des moyens de focalisation (42) le faisceau laser à proximité de l'ouverture afin de vaporiser les tissus de la paroi du coeur et de pratiquer un trou pour accéder à l'intérieur de la cavité cardiaque.

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