Modular total knee arthroplasty system and method
US10182830B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 3, 2017 |
| Grant date | Jan 22, 2019 |
| Priority date | — |
| Expiry date | Jul 28, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/4619
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A modular system for total knee arthroplasty includes a modular trial implant assembly. The modular implant assembly includes an elongate shaft configured for insertion into an elongate cavity in a bone, a reamer removably coupleable to the elongate shaft via a connection that allows the reamer to rotate while the elongate shaft remains in a substantially fixed angular orientation. The reamer has an outer surface that tapers toward the distal end configured to form a tapered cavity in an end of a bone in which the reamer is inserted and rotated. The modular trial implant assembly further includes a trial implant removably coupleable to a proximal end of the reamer. A modular final implant assembly includes an elongate stem, a tapered body and an implant body, each having a size and shape that can substantially correspond to a size and shape of the elongate shaft, the reamer and the trial implant, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.