Apparatus and methods for sealing a vascular puncture
US10874384B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 9, 2013 |
| Grant date | Dec 29, 2020 |
| Priority date | — |
| Expiry date | Apr 9, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/22069
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A sealant is provided for sealing a puncture through tissue that includes an elongate first section including a proximal end, a distal end, and a cross-section sized for delivery into a puncture through tissue, and a second section fused to and extending from the distal end of the first section. The first section may be formed from a freeze-dried hydrogel that expands when exposed to physiological fluid within a puncture. The second section may be formed from a solid mass of non-freeze-dried, non-crosslinked hydrogel precursors, the precursors remaining in an unreactive state until exposed to an aqueous physiological, whereupon the precursors undergo in-situ crosslinking with one another to provide an adhesive layer bonded to the first section. Apparatus and methods for delivering the sealant into a puncture through tissue are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.