Method and apparatus for treating a patient

A - Human Necessities – 61 – M

Patent

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Details

A61M 25/00 (2006.01) A61M 25/098 (2006.01) A61M 25/10 (2006.01)

Patent

CA 2373755

This invention is an apparatus for treating a patient including a catheter (12) having a distal end (14), and a proximal end (16). The distal end (14) has an orifice (18) through which a fluid can flow. The distal end (14) has a port (20) through which fluid can flow. The port (20) is adjacent to, but apart from, the orifice (18). The apparatus (10) includes a mechanism (22) for controlling the size of the port (20) that is open. The controlling mechanism (22) is disposed over the port (20), and able to close the port (20). The distal end (14) has an end marker (34) disposed about the orifice (18) which appears in an image of an imaging device. The distal end (14) has a plurality of holes (32) having an elongate shape disposed essentially in parallel with the longitudinal axis of the catheter (12) with smooth edges so blood cells are not damaged as they pass through the holes (32). Methods of using the device are also disclosed.

Cette invention se rapporte à un appareil de traitement d'un patient, qui comporte un cathéter (12) doté d'une extrémité distale (14) et d'une extrémité proximale (16). L'extrémité distale (14) présente un orifice (18) par lequel peut s'écouler un fluide ainsi qu'une lumière (20) par laquelle peut également s'écouler un fluide. La lumière (20) est adjacente à l'orifice (18) quoique séparée de celui-ci. L'appareil (10) comporte un mécanisme (22) conçu pour réguler la dimension de la lumière (20) qui est ouverte. Ce mécanisme de régulation (22) est disposé au-dessus de la lumière (20) et il peut fermer celle-ci. L'extrémité distale (14) comporte un marqueur d'extrémité (34) disposé autour de l'orifice (18), qui apparaît sur une image produite par un dispositif d'imagerie. L'extrémité distale (14) possède une pluralité de trous (32) présentant une forme oblongue disposée sensiblement parallèlement à l'axe longitudinal du cathéter (12) ainsi que des bords lisses qui permettent de ne pas endommager les globules sanguins lors de leur passage par ces trous (32). L'invention se rapporte également à des procédés d'utilisation de ce dispositif.

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