Intravascular catheter with axial member
US6942654B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 19, 2000 |
| Grant date | Sep 13, 2005 |
| Priority date | — |
| Expiry date | Jan 19, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M25/0053
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An intravascular catheter having a shaft, at least a portion of which includes a braid reinforcement with an axial wire or fiber disposed between the helical members that form the braid. The axial member prevents the elongation of the shaft of the catheter thereby maintaining one-to-one correspondence in axial manipulation of the catheter, even when the shaft is placed in tension. By positioning the axial member between the helical members, the axial member does not create a protrusion and does not become fixed to any adjacent polymer layer. Thus, the axial member limits axial strain of the catheter, without creating the undesirable effects of friction caused by an axial protrusion and without creating the undesirable effects of limited flexure caused by an adjacent polymer layer becoming fixed to the axial member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.