Stent graft used for interventional treatment of abdominal aortic diseases
US11678971B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2018 |
| Grant date | Jun 20, 2023 |
| Priority date | — |
| Expiry date | Dec 27, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2250/0039
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention discloses a stent graft used for interventional treatment of abdominal aortic disease, comprising a tube body composed of a tubular covering and a plurality of annular stents, and the tube body comprises a first tube body and a second tube body that arranged in sequence from the proximal end to the distal end, wherein the diameter of the first tube body is greater than diameter of the second tube body; the first tube body and the second tube body are connected by a transition section as a whole; the diameter at central part of the transition section is smaller than the diameter of the proximal end of the transition section and the diameter of the distal end of the transition section; a plurality of fenestrations are disposed on the first tube body and the transition section. The invention provides a stent graft having a smaller diameter of the portion near the branch vessels or branch stents after released, and has more space for accommodating branch vessels or branch stents for interventional treatment of abdominal aortic diseases.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.