Torque device for angioplasty guidewire
US5851189A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 24, 1996 |
| Grant date | Dec 22, 1998 |
| Priority date | — |
| Expiry date | May 24, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/09116
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A torque device for attaching to and selectively gripping and releasing a catheter guidewire to permit rotational and longitudinal manipulation of the guidewire to steer the guidewire through a vessel. A spindle is threadably engaged in a cap, and a bore through the spindle aligns with a bore through the cap to accept the guidewire. The end of the spindle inside the cap has a pair of fingers straddling the guidewire. As the cap and spindle are rotated with respect to each other, the threaded engagement of the spindle and cap forces the end of the fingers to advance along a tapering bore in the cap, which causes the fingers to close and grip the guidewire. Reversing the direction of rotation releases the grip on the guidewire.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.