Radiopaque coded ring markers for use in identifying surgical grafts
US4693237A · kind A · utility
140Cited by
4References
5Claims
0Family size
Inventors
Key dates
| Filing date | Jan 21, 1986 |
| Grant date | Sep 15, 1987 |
| Priority date | — |
| Expiry date | Jan 21, 2006 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B90/39
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Marker members of radiopaque material in the form of bands each of a different geometric configuration are sutured to the point at which a surgical graft to a blood vessel is made as in a coronary bypass operation. These ring or other shaped radiopaque members provide markers identifying the exact coronary blood vessel that the graft will lead to, each geometrical shape identifying a different coronary vessel bypassed, thus facilitating bypass graft catherization by identifying the entry point of any specific bypass graft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.