A device of the invention is used for preventing bleeding through a puncture of a body. The device includes an elongated member, a hemostatic material situated around the elongated member, and a cover member for completely covering the hemostatic material. The cover member includes an inner edge fixed...http://www.google.ca/patents/US5514158?utm_source=gb-gplus-sharePatent US5514158 - Sealing device for a percutaneous puncture
