Expandible surgical access device

A - Human Necessities – 61 – M

Patent

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Details

A61M 39/02 (2006.01)

Patent

CA 2542362

An access device for facilitating access to a surgical site includes an access member defining a longitudinal axis and having proximal and distal ends. The access member includes an inner member and an outer member disposed about the inner member. The inner member defines an opening therethrough to permit access to a surgical site and is moveable relative to the outer member. The access device also includes a deployment member associated with the inner member and the outer member. The deployment member is adapted to be deployed in at least a radial outward direction relative to the longitudinal axis upon movement of the inner member relative to the outer member, to thereby be positioned to engage body tissue to facilitate retention of the access member within a patient's body. The deployment member comprises a collar engaged with the inner member at a first end portion and the outer member at a second end portion.

L'invention porte sur un dispositif d'accès destiné à faciliter l'accès à un site chirurgical, ce dispositif comprenant un élément d'accès formant un axe longitudinal et possédant des extrémités proximale et distale. L'élément d'accès comprend un élément interne autour duquel est disposé un élément externe. L'élément interne comporte un orifice permettant l'accès à un site chirurgical, l'élément interne pouvant se déplacer par rapport à l'élément externe. Le dispositif d'accès comprend également un élément de déploiement associé à l'élément interne et à l'élément externe. L'élément de déploiement est adapté pour être déployé dans au moins une direction externe radiale par rapport à l'axe longitudinal lors du déplacement de l'élément interne par rapport à l'élément externe, l'élément de déploiement étant ainsi positionné de façon à venir à contact avec le tissu biologique pour faciliter la rétention de l'élément d'accès dans le corps du patient. L'élément de déploiement comprend un collier en contact avec l'élément interne au nouveau d'une première extrémité et avec l'élément externe au niveau d'une seconde extrémité.

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