Osteosynthesis auxiliary for the treatment of subtrochanteric peritrochanteric and femoral-neck fractures
US5713902A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 4, 1996 |
| Grant date | Feb 3, 1998 |
| Priority date | — |
| Expiry date | Apr 4, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/744
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Osteosynthesis auxiliary (10) for the treatment of subtrochanteric, peritrochanteric and femoral-neck fractures, with a locking nail (12) that can be introduced from the proximal end into the medullary space of a femur (11) and that comprises a distal section (15) having at least one oblong cross bore (13) to receive a distal locking element as well as a proximal section (14) having a slanted passageway (16), and with a femoral-neck part (19) that can be introduced from a lateral position through the slanted passageway (16) into the neck (17) and head (18) of the femur, wherein at least the section of the femoral-head part that can be anchored in the head (18) of the femur has a cross section that is not circular or rotationally symmetrical. Preferably this section (34) has the shape of a double-T or I profile (35). At the end away from the head (18) of the femur the femoral-neck blade (19) also comprises a radially projecting collar (33) to limit the lateral extent to which the femoral-neck blade (19) can be inserted into the passageway (16) through the locking nail (12).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.