Instruments and method for minimally invasive surgery for total hips
US7601155B2 · kind B2 · utility
Inventor
Key dates
| Filing date | May 20, 2003 |
| Grant date | Oct 13, 2009 |
| Priority date | — |
| Expiry date | Feb 20, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/175
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An intramedullary femoral broach aligns two instruments. A femoral neck resector guide slides over the broach and centers on the patient's femoral head to determine the height and angular rotation of resection. A circular ring of the head and cutting arms assure the system will fit any femur. A template is applied to the femoral broach and seats itself against the buttress of the broach locking it into place. The broach is then reinserted into the intramedullary canal. When the template reaches the greater trochanter the sizer is adjusted to the rotational anteversion of the canal. The handle of the femoral broach is struck with a mallet until the template is imbedded into the proximal femoral neck intramedullary bone. A retractor facilitates reaming of the acetabulum through a small anterior incision. A proximal portion digs into the bone of the superior acetabulum to allow for retraction of soft tissues.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.