Knee sizing and balancing instrument
US9693881B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2015 |
| Grant date | Jul 4, 2017 |
| Priority date | — |
| Expiry date | Jun 8, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/4668
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method of sizing and balancing a knee including: placing an integrated orthopedic instrument in contact with a resected distal femoral surface of a femur of a knee in flexion such that medial and lateral posterior feet of a tensor frame of the instrument are in contact with posterior condyles of the femur and such that medial and lateral posterior feet of a sizer body of the instrument are positioned on a spacer placed on a resected proximal surface of the patient's tibia; securing first and second wings extending from a central portion of the tensor frame on the resected distal femoral surface; rotating the sizer body relative to the tensor frame via a rotation mechanism that connects the sizer body and the tensor frame to balance the ligaments; and sizing the patient's femur by moving a stylus coupled to the sizer body on an anterior surface of the femur.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.