Drug eluting vascular closure devices and methods
A blood vessel and blood vessel wall technology, applied in the field of drug-eluting blood vessel closure devices for hemostasis at blood vessel puncture points, can solve problems such as serious complications, substances entering the bloodstream, dependence, etc., and achieve the effects of complete hemostasis and reduction of bleeding
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[0037] Referring now to FIG. 1 , there is shown a first embodiment of a drug-eluting, self-tensioning vaso-occlusive device 70 for hemostasis at a vascular puncture site, wherein at least one biochemical agent 152 is in a biochemical region or chamber 151 in combination with device as a whole. The device 70 typically consists of stainless steel coiled tubing or, for example, nylon, polyurethane, polyimide, PEEK 、PEBAX A first flexible elongated tubular element 71 formed of a polymer material such as the like. Tubular member 71 may have a length ranging from about 5 cm to about 50 cm, typically from about 10 cm to about 30 cm, and a diameter ranging from about 0.25 mm to about 5 mm, typically from about 0.5 mm to about 2 mm. An expandable occlusive element 74 is placed on the distal end of the tubular element 71 . Biochemical sealing element 153 is slidably positioned over tubular element 71 and adjacent expandable element 74 . A biochemical region 151 containing a bioche...
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