Instrument for inserting, adjusting and removing a surgical implant
US8100916B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 21, 2005 |
| Grant date | Jan 24, 2012 |
| Priority date | — |
| Expiry date | Oct 7, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S606/916
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An instrument for inserting, adjusting and engaging an implant, such as a polyaxial screw of a spinal fixation system, includes at least one retractable tab for engaging a corresponding recess on the implant and a shaft that moves relative to the retractable tab. The movable shaft selectively moves the tab between an expanded position for engaging the recess and a retracted position out of engagement with the recess. The shaft selectively engages a portion of the implant to rigidify the implant after the retractable tab engages the recess. The axially extending shaft may be disposed within an axially extending passageway of a body assembly. A rotatable collar surrounding the body assembly is coupled to the shaft for moving the shaft relative to the retractable tab.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.