Trocar with removable, replaceable tip

A - Human Necessities – 61 – B

Patent

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Details

A61B 17/34 (2006.01) A61B 17/00 (2006.01)

Patent

CA 2328243

A trocar obturator (10) having a removable replaceable tip (12) includes an obturator tip (12) having a sharpened distal end (16), and a first engagement device (22) on its proximal end. An obturator shaft (14) has a second engagement device (32) on its distal end for locking engaging the first engagement device securing the tip, and shaft together. One of the engagement devices borne by one of the tips, and shafts include a flexible member biased to engage the engagement devices. There are access means (38, 40) for flexing the flexible member against its bias to disengage the engagement devices to release the tip, and shaft.

La présente invention concerne un obturateur de trocart (10), à embout mobile remplaçable (12), qui comprend un embout d'obturateur (12) présentant une extrémité distale pointue (16), et un premier dispositif d'engagement (22) sur son extrémité proximale. Une canule d'obturateur (14) présente un second dispositif d'engagement (32) sur son extrémité distale afin de verrouiller, par engagement, le premier dispositif d'engagement, ce qui permet de fixer ensemble la canule et l'embout. Un des dispositifs d'engagement porté par l'un ou l'autre de l'embout ou de la canule comprend un élément souple sollicité à s'engager aux dispositifs d'engagement. Des moyens d'accès (38,40) permettent de faire fléchir l'élément souple, à l'encontre de la sollicitation exercée, afin de désaccoupler les dispositifs d'engagement et de libérer l'embout et la canule.

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