Hyaluronic acid and its use for treating venous insufficiency and varicose veins
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United States of America Patent
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Aug 15, 2017
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app pub date -
Dec 20, 2012
filing date -
Dec 20, 2011
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Abstract
The present invention relates to an injectable aqueous viscous solution for treating varicose veins. It also relates to a catheter system with cannulas for vascular puncture with double or triple cut tip comprising, (i) an outer cannula (non-cutting element), a tube-like construction which is slightly flexible, (a) the tip zone being tapered to ease introduction, (b) the edges being optionally rounded to provide atraumatic advancement (c) optionally with a Luer-lock connector (ii) a hollow needle which is flexible and bendable (c) optionally with a transparent flashback chamber, wherein (d) the diameter of the needle is below the diameter of the catheter, wherein (iii) the needle and outer cannula are connected by a temporary lock to ensure the needle tip is fixed in adequate position outside the outer cannula outer cannula during skin puncture and introduction towards the target region.
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