Devices and methods for bone/tissue preparation

A - Human Necessities – 61 – B

Patent

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Details

A61B 17/00 (2006.01) A61F 2/46 (2006.01) A61M 3/02 (2006.01) A61M 35/00 (2006.01) A61M 13/00 (2006.01)

Patent

CA 2194096

Devices and methods are provided for surgical lavage including pumping liquid to a bone or other tissue surface with a reciprocating pump mechanism (30) operated by pressurized gas wherein pressurized exhaust gas is further utilized to accelerate the pulsed liquid. A first valve arrangement (20) is provided to bypass the pumping mechanism (30) to direct pressurized gas directly onto the bone/other tissue surface without the presence of liquid from the device. A second valve arrangement (38) is provided for optionally venting at least a portion of the exhaust gas to the atmosphere instead of directing it to the bone/other tissue surface. An additive line delivers additive to the gas bypass line (24) for delivery of the additive to the bone/other tissue surface with the flowing gas stream.

L'invention concerne des dispositifs et procédés de lavage chirurgical. Ledit procédé consiste à envoyer un liquide dans un os ou une autre surface tissulaire au moyen d'un mécanisme de pompe à piston alternatif (30) actionné par du gaz sous pression, le gaz d'échappement sous pression étant ensuite utilisé pour accélérer le liquide pulsé. Un premier ensemble à vanne (20) est prévu pour contourner le mécanisme de pompage (30) et envoyer directement le gaz sous pression sur l'os/l'autre surface tissulaire sans que du liquide soit envoyé par le dispositif. Un second ensemble à vanne (38) est également prévu pour éventuellement décharger au moins une partie du gaz d'échappement dans l'atmosphère au lieu de l'envoyer sur l'os ou l'autre surface tissulaire. Une ligne supplémentaire d'alimentation en additif (24) achemine un additif dans la ligne de dérivation de gaz (24) de sorte que ledit additif soit envoyé sur l'os ou l'autre surface tissulaire avec le flux de gaz liquide.

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