| 摘要 |
Devices and methods are disclosed for achieving hemostasis at a wound site following an endovascular procedure. Such wound sealing is necessary generally following a percutaneous procedure where a percutaneous cannula is withdrawn from the vasculature leaving an entry site to the vessel that could bleed if steps are not taken to stop said bleeding. The devices and methods disclosed herein are especially useful in the catheterization laboratory following interventional cardiology or interventional neuroradiology procedures. The devices utilize the introduction sheath that was originally used for the procedure as a guide for the closure. The closure device is inserted through the introduction sheath once any therapeutic or diagnostic devices have been removed. The closure device comprises a two-part sealing material housed in a reservoir system, a mixing chamber, a delivery cannula, exit ports, and a vessel location device. The sealing material generally comprises materials such as albumin and polyethylene glycol, or the like. The sealing device works in conjunction with the already placed sheath to eliminate the step of replacing said sheath, an action that increases procedural time and may contribute to further wound damage and reduced sealing effectiveness.
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