Straight stem for the implantation into a proximal femur
US9351841B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 27, 2012 |
| Grant date | May 31, 2016 |
| Priority date | — |
| Expiry date | Aug 6, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/4619
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention relates to a straight stem (10) for the implantation into a proximal femur, the stem (10) comprising a proximal stem section (12) and a distal stem section (14), the distal stem section (14) having a distal end (24) and a distal tip (26) arranged directly adjacent to the distal end (24) and defining a distalmost point of the distal end (24), the stem (10) having, in an anterior-posterior view, a medial contour and a lateral contour, and the stem (10) having a straight stem center axis (20) between the medial contour and the lateral contour, wherein the distal end (24), in an anterior-posterior view, has a convexly curved contour, and wherein the convexly curved contour of the distal end (24) merges with straight sections (46, 48) of the medial contour and of the lateral contour at a medial merging point (22) and a lateral merging point (28), respectively, wherein the medial merging point (22) and the lateral merging point (28) are offset with respect to each other in a direction parallel to the stem center axis (20), wherein the lateral merging point (28) is arranged proximally with regard to the medial merging point (22), wherein the convexly curved contour o…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.