Opening mechanism for umbrella-like intravascular shunt defect closure device
US4007743A · kind A · utility
1,046Cited by
3References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 20, 1975 |
| Grant date | Feb 15, 1977 |
| Priority date | — |
| Expiry date | Oct 20, 1995 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/00606
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The pivotable struts of an umbrella-like shunt defect closure device are resiliently biased from a collapsed position to an expanded position by resilient and foldable flat ring sections which extend between the struts when the struts are in their expanded positions but which are folded between the struts when the struts are in their collapsed positions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.