Method and apparatus for automated determination of stent landing zones based on a maximum diameter of a segmented blood vessel data obtained by intravascular device
US11923067B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 12, 2013 |
| Grant date | Mar 5, 2024 |
| Priority date | — |
| Expiry date | Jun 12, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2250/006
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
In part, the invention relates to a method for sizing a stent for placement in a vessel. In one embodiment, the method includes the steps of: dividing the vessel into a plurality of segments, each segment being defined as the space between branches of the vessel; selecting a starting point that appears to have substantially no disease; defining the diameter at this point to be the maximum diameter; calculating the maximal diameter of the next adjacent segment according to a power law; measuring the actual diameter of the next adjacent segment; selecting either the calculated maximum diameter or the measured maximum diameter depending upon which diameter is larger; using the selected maximum diameter to find the maximum diameter of this next segment; iteratively proceeding until the entire length of the vessel is examined; and selecting a stent in response to the diameters of the end proximal and distal segments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.