Instrument for bending spinal rods used in a spinal fixation system
US7454939B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 12, 2005 |
| Grant date | Nov 25, 2008 |
| Priority date | — |
| Expiry date | Aug 31, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D7/063
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An instrument and method for bending a surgical implant, such as a spinal rod, includes a lever pivotally connected to a handle through a movable linkage system. The movable linkage system includes one or more bearing surfaces for applying a force to a first portion of the surgical implant while a rod seat connected to the handle holds an adjacent second portion of the surgical implant in a fixed position, thereby causing the surgical implant to bend between the first and second portion. The instrument can be easily operated using a single hand, is easy to control and requires a relatively small amount of force to bend a surgical implant. The instrument can include an automatic advancement means for advancing the surgical implant after bending to bend another portion of the surgical implant by a selected amount. The instrument can also be used for bending spinal rods having a non-circular cross-section in multiple planes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.