Medical guide wire and manufacturing method of medical guide wire
US11167115B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 1, 2017 |
| Grant date | Nov 9, 2021 |
| Priority date | — |
| Expiry date | Feb 15, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/09108
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Conventionally, a coil formed in an irregular shape is used on a distal end side of the coil of a guide wire or a distal joining section is used on the tip of the guide wire to shorten a length in a longitudinal direction of a rigid joint portion for improving the passing performance to the occluded lesion. However, it is not enough especially in the completely occluded lesion. Thus, it is an important technical problem to improve both the passing performance and safety. An outer coil having a coil inclined portion and a distal joining section connected with the coil inclined portion are provided on a distal end portion of the guide wire. In the coil inclined portion, each one turn of a coil wire is continuously inclined in a longitudinal direction. Thus, both the passing performance and safety can be remarkably improved especially in the completely occluded lesion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.