Commissurotomy catheter apparatus and method
US4484579A · kind A · utility
349Cited by
10References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 19, 1982 |
| Grant date | Nov 27, 1984 |
| Priority date | — |
| Expiry date | Jul 19, 2002 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/22097
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A commissurotomy catheter and method for separating fused heart valve leaflets using the catheter is disclosed. The catheter is comprised of a lumen having at least two inflatable balloons at its operational end and at least one cutting edge between the balloons. To separate the fused leaflets the catheter is positioned within the heart so that it extends through the fused leaflets with a balloon on either side of the leaflets. Then the balloons are inflated which forces the cutting edge against the fissure between the fused leaflets and separates them. After separation the balloons are deflated and the catheter is removed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.