System and method for reinforcing bone in preparation for screw implantation
US6752809B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 4, 2001 |
| Grant date | Jun 22, 2004 |
| Priority date | — |
| Expiry date | Jun 20, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/8822
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A system and method for reinforcing bone in preparation for screw implantation. One system embodiment comprises a threaded and centrally bored cannula with a perforated distal end, a cannula applicator frictionally fitting within the central bore, a plunger translating within the central bore (the plunger having a internal longitudinal guide wire), bone cement, and a cannulated drill bit. One method embodiment comprises drilling and tapping a hole in a vertebral body, inserting the applicator into the central bore, screwing the cannula into the tapped hole by rotating the applicator, removing the applicator, injecting the bone cement into the central bore, distributing the bone cement out the holes in the distal end of the cannula and into the surrounding bone using the plunger, letting the bone cement harden, and drilling out the plunger using the cannulated drill following the guide wire.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.