Ultrasoft embolism devices and process for using them
First Claim
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1. A process for the introduction of a flexible, vaso-occlusive device comprising a coil, braid, or chain having an outside diameter less than about 0.010 inches and a flexibility such that a chosen one cm length of the device bends more than about 20°
- under its own weight when an end of that one cm length is held in a horizontal position, into a human body comprising the steps of advancing a catheter having a lumen and a distal end into the human vasculature until the distal end reaches a selected site within that vasculature, introducing the flexible, vaso-occlusive device through the catheter lumen and out the catheter distal end.
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Abstract
An exceptionally flexible, ultrasoft vaso-occlusive or embolism forming device made of a material which may be a braid, coil, or chain which forms a long, thin thread-like device having little rigidity or column strength. The device is sufficiently flexible and small that it may be hydraulically delivered to a site within the vasculature of a human body using an injected drug or fluid flush through a catheter.
294 Citations
21 Claims
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1. A process for the introduction of a flexible, vaso-occlusive device comprising a coil, braid, or chain having an outside diameter less than about 0.010 inches and a flexibility such that a chosen one cm length of the device bends more than about 20°
- under its own weight when an end of that one cm length is held in a horizontal position, into a human body comprising the steps of advancing a catheter having a lumen and a distal end into the human vasculature until the distal end reaches a selected site within that vasculature, introducing the flexible, vaso-occlusive device through the catheter lumen and out the catheter distal end.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
Specification