Vascular access system

A - Human Necessities – 61 – M

Patent

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Details

A61M 39/02 (2006.01)

Patent

CA 2222142

A vascular access system has an implantable head which includes a pair of similar access ports, each port having an internal chamber with an open mouth, an outlet cannula extending from the port and being in fluid communication with the corresponding chamber and a domed septum closing the mouth of the corresponding chamber. A flexible dual-lumen catheter is connected to the head. The catheter has a pair of unitary closely spaced-apart parallel lumens which are separable so that the catheter proximal end can be connected to the head's outlet cannulas, with the outlet cannula of one port being received in one of the catheter lumens and the outlet cannula of the other port being received in the other catheter lumen. Locking sleeves are provided on the head for locking the outlet cannulas in their respective catheter lumens and a special access needle is provided for accessing the head to avoid coring of the head's septa.

Système d'accès vasculaire pourvu d'une tête implantable qui comporte une paire d'orifices d'accès similaires, dont chacun comporte une chambre interne avec une embouchure ouverte, une canule de sortie s'étendant depuis l'orifice et étant en communication fluide avec la chambre correspondante, et une cloison bombée fermant l'embouchure de la chambre correspondante. Un cathéter souple à deux lumières est relié à la tête. Il comporte une paire de lumières parallèles solidaires faiblement écartées qui peuvent se séparer, de sorte que l'extrémité proximale du cathéter peut être raccordée aux canules de sortie de la tête, la canule de sortie d'un orifice venant se loger dans l'une des lumières du cathéter et celle de l'autre orifice dans l'autre lumière. Des manchons de fixation sont ménagés sur la tête afin de bloquer les canules de sortie dans leur lumière de cathéter respective, et une aiguille d'accès spécial permet d'avoir accès à la tête afin d'éviter d'en percer les cloisons.

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