Surgery – Instruments – Orthopedic instrumentation
Reexamination Certificate
2006-02-21
2006-02-21
Dawson, Glenn K. (Department: 3731)
Surgery
Instruments
Orthopedic instrumentation
Reexamination Certificate
active
07001395
ABSTRACT:
A plug for stopping the flow of bone cement in a channel within bone includes an elastomeric inflatable structure protected from bone fragments and sharp edges by a shield extending around the inflatable structure. The shield may be formed as two or more coaxial structures having flexible members extending between opposite ends, with flexible members from an inner such structure curving outward to lie between adjacent flexible members from an outer such structure as the inflatable structure is inflated. The core is also removably connected to an insertion tool, with passageways in the insertion tool and in the core being used to insert a fluid into the inflatable structure. A valve extends as a sleeve around the core, and over the passageway, allowing fluid to flow into the inflatable structure, but preventing it from flowing out of the inflatable structure.
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Davidge Ronald V.
Davis D. Jacob
Dawson Glenn K.
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