Position confirming catheter
US8157790B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 10, 2006 |
| Grant date | Apr 17, 2012 |
| Priority date | — |
| Expiry date | Apr 21, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/32
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A catheter includes an inner layer, an outer layer, a reinforcement layer located between the inner layer and the outer layer, and a marker composed of a contrast material for confirming the position of the distal end portion of the catheter from outside the living body. The reinforcement layer is composed of a spiral first filamentous member, with a gap provided between those portions of the first filamentous member which are adjacent to each other along the longitudinal direction of the catheter. The marker is formed by spirally winding a second filamentous member having a filament diameter smaller than the gap, and has a portion in close contact with the inner layer in the gap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.