Vascular guiding catheter assembly and vascular dilating catheter assembly and a combination thereof and methods for making the same
US4411055A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 10, 1981 |
| Grant date | Oct 25, 1983 |
| Priority date | — |
| Expiry date | Aug 10, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49865
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Guiding catheter assembly having a first tubular member formed of a material which has a low coefficient of friction and a second tubular member encasing said first tubular member so that the first tubular member fits tightly within said second tubular member. The second tubular member is formed of an irradiated modified polyolefin which is flexible but which has a greater rigidity than the said first tubular member so as to provide the guiding catheter assembly with the desired rigidity to permit manuevering of the same. The combined first and second tubular members have proximal and distal ends with the distal ends having a bend therein permitting engagement in a vascular structure. A fitting is mounted on the proximal ends through which a dilating catheter assembly can be inserted into the guiding catheter assembly. Dilating catheter assembly having first and second tubular members formed of a flexible irradiated modified polyolefin. The first tubular member is encased within said second tubular member. The combined first and second tubular members have proximal and distal ends. The second tubular member has formed therein near the distal end a distensible or inflatable annular …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.