| 摘要 |
The present invention relates to sealing an access site within a subcutaneous tissue structure with an occlusion device comprising submucosal tissue. The occlusion device a stem and a flexible head, where the head is a concave dome, and has one or more ribs which strengthen the head and reduce flexure that would invert the dome. The stem comprises a loop configured to receive a suture which may be stitched to the patient and whereby the occlusion device is secured. The occlusion device comprises a transition section which is tapered and which connects the head to the stem. The tapered section is configured to strengthen the occlusion device and to facilitate positioning of the device within the subcutaneous tissue structure. A delivery device is configured to releasably secure stem the occlusion device and facilitate delivery of the occlusion device to a vascular access site, and to facilitate bending of the head.
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