| 摘要 |
Described here are devices, methods, and kits for forming one or more tracts in tissue. The tracts may be formed in any suitable or desirable tissue, and may seal relatively quickly without the need for a supplemental closure device. In some variations, the methods may comprise advancing a tissue-piercing member along a predetermined path of a tract- forming device to form one or more tracts in tissue (e.g., a vessel wall). The tract or tracts may, for example, provide access for one or more tools.
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