System and method for dilating and adjusting flexibility in a guiding device
US9095370B2 · kind B2 · utility
1Cited by
4References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 14, 2011 |
| Grant date | Aug 4, 2015 |
| Priority date | — |
| Expiry date | Feb 17, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/09183
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
This disclosure is directed to systems and methods for providing a guiding device having a dilatable, drilling tip. The tip is formed by wound helical members such that resistance to rotation in an unwinding direction dilates the tip. The helical members are configured so that the dilatable tip increases in stiffness when the helical members are tensioned by a resistance to rotation in the winding direction. In some embodiments, application of relative force between coaxial inner and outer tubular members is used to control the dilation, stiffness and drilling of the guiding member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.