Improvements to cannula components

Details Improvements to cannula components Improvements to cannula components

A - Human Necessities

61

B

A61B 17/06 (2006.01) A61B 17/04 (2006.01) A61M 1/00 (2006.01)

Patent

CA 2568668

A set of cannula components, the cannula being of a kind which has an end region of sufficient dimensions as to be located, in use, in an aperture of body tissue, a thread being woven around the aperture so that, when the thread is drawn, the fluid is primarily channelled through the cannula, wherein the set comprises at least one clamp configured to tightly fasten onto the outside of the wall of the cannula whilst in a region being sufficiently spiced from the cannla wall to be able to accommodate the passage of a flexible wall tube through which a thread may be drawn; and at least a second clamp configured to squash said flexible wall tube in order to substantially immobilise a thread located inside the tube in order to keep the thread in its desired position.

L'invention concerne un ensemble de composants de canule, la canule étant munie d'une région d'extrémité dont les dimensions sont suffisantes pour qu'elle soit placé, lors de l'utilisation, dans l'ouverture d'un tissu corporel, un fil étant tissé autour de l'ouverture de façon que, lorsque le fil est tiré, le fluide est principalement canalisé dans la canule. L'ensemble comprend au moins une pince conçue pour saisir fermement l'extérieur de la paroi de la canule, cette pince étant située dans une région suffisamment espacée de la paroi de la canule pour permettre le passage d'un tube à paroi souple à travers lequel un fil peut être tiré ; et au moins une seconde pince conçue pour comprimer le tube à paroi souple afin d'immobiliser sensiblement le fil situé à l'intérieur du tube et de maintenir le fil dans une position voulue.

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