Alignment device for locking the base part of intramedullary nails
US6039742A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 3, 1998 |
| Grant date | Mar 21, 2000 |
| Priority date | — |
| Expiry date | Nov 3, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/1725
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The alignment device serves for the positioning and insertion of osteosynthetic fasteners, in particular locking screws or bolts, in the base part of an intramedullary nail implanted in a bone, with an alignment bracket detachably connected to the top end of the intramedullary nail, and with a longitudinal alignment bar attached to the bracket by means of a coupling unit, the bar having a first section and a second section. In the first section, the alignment bar is detachably and movably connected to a coupling unit. By way of the coupling unit, the alignment bar is also detachably and pivotably connected to the alignment bracket. The second section of the alignment bar is provided with at least one guide hole serving to permit the positioning of a bore for locking the base of the intramedullary nail in a bone. The second section of the alignment bar also supports a lockable first spacing-sensor assembly with a spacing sensor whose contact surface making contact with the surface of the base of the intramedullary nail permits a shift perpendicular to the intramedullary nail without losing contact with the nail. In addition, a second spacing-sensor assembly is provided, consisting o…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.