Catheter and method for calculating fractional flow reserve
US11272850B2 · kind B2 · utility
1Cited by
175References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 8, 2017 |
| Grant date | Mar 15, 2022 |
| Priority date | — |
| Expiry date | Sep 5, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2562/0247
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A catheter for measuring a fractional flow reserve includes a proximal shaft, a distal shaft coupled to a distal portion of the proximal shaft, and a pressure sensor coupled to the distal shaft. The distal shaft includes a middle wall portion configured to extend through a stenosis in a vessel. The middle wall portion of the distal shaft includes at least one skive reducing the cross-sectional profile of the middle wall portion. The middle wall portion may further include at least one stiffening wire for increasing columnar stiffness of the middle wall portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.