Catheter control system having a pulley
US5741320A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 2, 1995 |
| Grant date | Apr 21, 1998 |
| Priority date | — |
| Expiry date | May 2, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/015
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A steerable catheter comprising a resilient body member, a manipulation handle attached to the proximal end of the body member, a control wire extending from the handle to the distal end of the catheter for deflection control, and a pulley mechanism for controlling the movement of the control wire. Longitudinal movement of a slide element in the handle causes movement of the control wire and control over the deflection of the distal end of the catheter. The pulley mechanism is connected between the slide element and the control wire to provide greater mechanical advantage to effect deflection of the body member while enhancing deflection control resolution. A stiffening member is also disposed in the catheter body member and its position is controlled by the rotational motion of the slide element. The position of the pulley mechanism is not affected by rotational motion of the slide element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.