Device having a radiopaque marker for endoscopic accessories and method of making same
US5489277A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 8, 1994 |
| Grant date | Feb 6, 1996 |
| Priority date | — |
| Expiry date | Sep 8, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M25/0108
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A catheter and a method for making the same, the catheter having a radiopaque marker ring placed within a tube, whereby the radiopaque ring is inserted into an expanded section of the tube, followed by the relaxation of the tube to its original dimensions, where the ring inner-diameter is equal or greater than the tube inner-diameter, and the ring outer-diameter is less than the tube outer-diameter, such that said inner surface of said ring is exposed to said lumen of said tube such that said inner surface provides a pathway through which other devices pass through said tube without obstruction, and said outer surface of said ring is embedded within said tube, under conditions such that the bump on the outer surface of said tube which would otherwise be present is reduced to allow said tube to pass through other devices without obstruction, said embedding condition also minimizing the overall thickness of said tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.