Single port access system

A - Human Necessities – 61 – B

Patent

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Details

A61B 17/34 (2006.01) A61B 17/02 (2006.01)

Patent

CA 2739910

Embodiments of a surgical access system useful for single or limited port procedures comprise a trocar (1800) comprising a fixation cannula (1810), a retractor, and a gel cap removably coupled to the retractor. The gel cap comprises a gel pad that acts as an artificial body wall, through which instruments may be inserted into a body cavity, either directly or through one or more trocars. The fixation cannula comprises a retainer (1830) and a bolster (1840), which together, capture the artificial body wall therebetween, thereby fixing the trocar thereto. The gel pad permits flexible instrument placement, as well as translational and angular degrees of freedom for the instruments while maintaining a gas tight seal.

Des modes de réalisation d'un système d'accès chirurgical utile pour des opérations à orifice unique ou limité comprennent un trocart (1800) comprenant une canule de fixation (1810), un rétracteur et un capuchon de gel couplé de façon amovible au rétracteur. Le capuchon de gel comprend un tampon de gel qui sert de paroi corporelle artificielle, à travers laquelle des instruments peuvent être introduits dans une cavité corporelle, soit directement soit par un ou plusieurs trocarts. La canule de fixation comprend un dispositif de retenue (1830) et un disque (1840), lesquels, conjointement, capturent la paroi corporelle artificielle entre eux, fixant ainsi le trocart à celle-ci. Le tampon de gel permet la mise en place d'un instrument flexible, ainsi que des degrés de liberté en translation et angulaires pour les instruments, tout en conservant un joint étanche aux gaz.

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