Universal pullback mechanism for in-situ treatment device
US6506144B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 13, 2000 |
| Grant date | Jan 14, 2003 |
| Priority date | — |
| Expiry date | Dec 22, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N2005/1008
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A pullback mechanism is provided that includes base block, a clamping retainer, and a sliding retainer. The clamping retainer preferably includes a clamping block and a mechanism for tightening the clamping block against the base block. The sliding retainer preferably includes a retainer carriage on which is mounted a clamping retainer and a mechanism for tightening the clamping retainer against the retainer carriage. In one preferred embodiment, the sliding retainer is mounted on a guide rail that is fixed to the base block. A pullback line attached at one end to the retainer carriage of the sliding retainer and at a second end to a movement imparting mechanism. A control unit controls the operation of the movement imparting mechanism to impart movement to the pullback line. In a further embodiment, a lead screw is provided on the base block and the sliding retainer is moveable coupled to the lead screw via a threaded mounting hole. In this embodiment, a flexible rotary connection is coupled to the lead screw and to a motion imparting mechanism. A control unit is provided to control the operation of the motion imparting mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.