Method and system for treating valve stenosis
US9364254B2 · kind B2 · utility
6Cited by
295References
6Claims
0Family size
Assignee
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Key dates
| Filing date | May 15, 2013 |
| Grant date | Jun 14, 2016 |
| Priority date | — |
| Expiry date | May 15, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/320008
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A valvuloplasty catheter comprises a balloon or other expansible shell which carries a plurality of scoring elements, typically formed in an elastic, self-closing metal cage. The expansible shell and scoring elements are positioned inside an aortic or other cardiac valve, and the shell expanded to engage the scoring elements against stenotic material which covers the valve leaflets and valve annulus. The scoring elements uniformly distributed force to break up the stenotic material, and the cage further contributes to rapid balloon deflation allowing shortening of the treatment time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.