Medical guide wire having a stepwisely thickness-reduced but breadth-increased distal tip structure
US7399283B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 28, 2004 |
| Grant date | Jul 15, 2008 |
| Priority date | — |
| Expiry date | Nov 28, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/09133
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
In a medical guide wire, a core line securement portion (11) is provided in which the core wire (2) is fixed to an inner side of the helical coil body (3) so as to form a top leading end portion (10) between the core line securement (11) and the head plug (4). A flat plane structure (13) is formed in which the core wire (2) of the top leading end portion (10) gradually changes through stepped portions (S) so that the core wire (2) progressively reduces its thickness stepwisely while successively increasing its breadth stepwisely as approaching a foremost distal end of the top leading end portion (10). This provides an improved flexibility, sensitivity, torsibility and torque transmissibility with the flat plane structure (13) so as to be accessible to the diseased area with a high detective and ablative ability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.