Radiopaque marker for stereotaxic catheter
US4796637A · kind A · utility
67Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 17, 1987 |
| Grant date | Jan 10, 1989 |
| Priority date | — |
| Expiry date | Jun 17, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B90/10
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A stereotaxic catheter includes at least one lumen parallel to an axis thereof. The lumen includes a staff having disposed thereon or therein a predetermined number of spaced-apart markings of a radiopaque material. In a preferred embodiment, the markings are equidistantly spaced circumferential bands of a material having a large X-ray signature. The lumen containing the staff is preferably sealed at both ends and is most preferably sealed in close adjacency to each end of the staff whereby the staff is retained in a stable and predictable positional relationship to the remainder of the catheter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.