Device and method for preparing a recess in a bone
US9888939B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 28, 2014 |
| Grant date | Feb 13, 2018 |
| Priority date | — |
| Expiry date | Apr 7, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/00371
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A punching device for preparing a recess in a bone has a punching tool usable for such a punching device. An implant usable with the punching tool is provided and a method for preparing a recess in a bone are disclosed. The punching device comprises an ultrasonic sonotrode and a punching tool which is fixable to the sonotrode at its proximal extremity. At its distal extremity, the punching tool has a thin-walled portion having a non-rotational symmetric cross-section. By ultrasonic vibration of the punching tool, the thin-walled portion can be forced into a bone thereby preparing a recess of which is not rotationally symmetric. Subsequently, an implant can be held in such recess. Due to its lack of rotational symmetry, the implant may absorb rotational forces around its longitudinal axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.