Sizing obturator for prosthetic aortic valves
US5814096A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 24, 1997 |
| Grant date | Sep 29, 1998 |
| Priority date | — |
| Expiry date | Oct 24, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B90/06
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An aortic valve sizing obturator apparatus for employment in determining the correct size of an aortic annulus. The apparatus includes a cylindrical obturator body with a flange member formed thereabout. At least the under surface of the flange member is of a non-planar, multi-curvate configuration to thereby be complimentary in shape to the annulus of an aortic valve when seated in the annulus during size determination. Within the cylindrical obturator body can be disposed a handle connector to which a handle can be attached during placement of the obturator apparatus within an annulus. The present invention also includes methodology for determining the size of an aortic valve annulus by employing a plurality of differently-sized aortic valve sizing obturators defined above and individually seating them sequentially within the aortic annulus until an obturator that reflects annulus size is located.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.