Central venous access system
First Claim
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1. A method for acquiring access to the central venous system of a patient at a target location near an occlusion of a jugular vein, comprising the steps of:
- introducing a guide catheter into a blood vessel at a location remote from said occlusion;
advancing a needle wire having a sharp end transvascularly through the guide catheter until its sharp end is adjacent the occlusion;
rotationally adjusting said needle wire until its sharp end is aimed toward the desired skin exit location;
advancing the needle wire to puncture the blood vessel from the inside out at a vascular exit site adjacent the occlusion, thereby establishing a tissue track;
further advancing the needle wire along said tissue track thereby extending said tissue track to puncture the skin from the inside out near said vascular exit site.
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Abstract
A catheter system and method of use for re-establishing venous access near an occluded vessel.
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Citations
13 Claims
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1. A method for acquiring access to the central venous system of a patient at a target location near an occlusion of a jugular vein, comprising the steps of:
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introducing a guide catheter into a blood vessel at a location remote from said occlusion; advancing a needle wire having a sharp end transvascularly through the guide catheter until its sharp end is adjacent the occlusion; rotationally adjusting said needle wire until its sharp end is aimed toward the desired skin exit location; advancing the needle wire to puncture the blood vessel from the inside out at a vascular exit site adjacent the occlusion, thereby establishing a tissue track; further advancing the needle wire along said tissue track thereby extending said tissue track to puncture the skin from the inside out near said vascular exit site. - View Dependent Claims (2, 3)
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4. A method for acquiring access to the central venous system of a patient near an occlusion, comprising the steps of:
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identifying an exit point target site on the exterior skin of a patient near an occlusion; introducing a needle wire having a sharp end into a blood vessel at a location remote from said occlusion; advancing the needle wire through the vascalature until its sharp end is adjacent the occlusion; aiming the sharp end of the needle wire toward the exit point target; and advancing the needle wire through the occlusion and through the blood vessel until it becomes exteriorized at the exit point target to establish a tissue track from the blood vessel to the exterior of the patient. - View Dependent Claims (5, 6, 7, 8)
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9. A method for acquiring access to the central venous system of a patient near an occlusion, comprising the steps of:
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identifying an exit point target site on the exterior skin of a patient near an occlusion; introducing a guide catheter having a first lumen into a blood vessel at a location remote from the exit point target site and advancing the guide catheter to the occlusion; advancing a dilation stylet having a second lumen through the guide catheter lumen to the occlusion; advancing a needle wire with a sharpened end through the dilation stylet lumen so that the sharpened end is adjacent the occlusion; aiming the sharp end of the needle wire toward the exit point target; and advancing the needle wire through the occlusion and through the blood vessel until it becomes exteriorized at the exit point target to establish a tissue track from the blood vessel to the exterior of the patient. - View Dependent Claims (10, 11, 12, 13)
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Specification