Surgical clamp devices and methods especially useful in...

A - Human Necessities – 61 – B

Patent

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Details

A61B 17/00 (2006.01) A61B 17/12 (2006.01) A61B 17/122 (2006.01) A61B 17/28 (2006.01) A61M 5/168 (2006.01) A61M 39/22 (2006.01)

Patent

CA 2373636

A clamping and fluid delivery device (50) for occluding a vessel (12) during a surgical procedure. Generally, the device (50) includes an internal core portion (52) having a distal end (52a) with a sealing surface and opposite side surfaces comprising sealing surfaces. The core portion (52) is inserted transversely into the vessel (12). Opposed, external clamping arms (62, 64) move together outside the vessel (12) and clamp the vessel (12) against the core portion (52). Padding (124) the sealing surfaces on opposite sides of the core portion (52), as well as on the distal end (52a) engage the internal walls (12a) of the vessel (12) and are opposed by padded clamping surfaces (120, 122) of the arms (62, 64). The core portion moves distally simultaneously with the clamping action of the arms to provide a distal seal. A bypass cannula (58) and cardioplegia cannula (60) fluidly couple the core portion (52) to deliver blood and cardioplegia fluid to opposite sides of the core portion (52).

L'invention concerne un dispositif de préhension et de distribution de fluide (50) permettant de pratiquer l'occlusion d'un vaisseau (12) pendant une intervention chirurgicale. D'une manière générale, ce dispositif (50) comporte une partie centrale intérieure (52) munie d'une extrémité distale (52a) présentant une surface de fermeture et des surfaces latérales opposées comprenant des surfaces de fermeture. La partie centrale (52) est introduite transversalement dans le vaisseau (12). Des bras de préhension extérieurs opposés (62, 64) sont mobiles simultanément à l'extérieur du vaisseau (12) et serrent celui-ci contre la partie centrale (52). Des rembourrages (124) disposés sur les surfaces de fermeture des côtés opposés de la partie centrale (52), ainsi que sur l'extrémité distale (52a), viennent en contact avec les parois intérieures (12a) du vaisseau (12). A l'opposé de ces rembourrages se trouvent des surfaces de préhension rembourrées (120, 122) des bras (62, 64). La partie centrale est mobile sorte qu'elle pratique une fermeture distale. Une canule de dérivation (58) et une canule de cardioplégie (60), en communication fluidique avec la partie centrale (52), permettent d'apporter du sang et du fluide de cardioplégie à des côtés opposés la partie centrale (52).

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