Surgery – Instruments – Orthopedic instrumentation
Patent
1994-02-03
1995-11-21
Pellegrino, Stephen C.
Surgery
Instruments
Orthopedic instrumentation
606 95, 606192, A61B 1756
Patent
active
054682452
ABSTRACT:
A method and apparatus for filling a shaft bored into human femoral bone during hip replacement surgery with gelatinous methyl methacrylate bonding cement for receipt of an artificial hip prothesis so as to maximally preventing loosening of the prosthesis after hardening of the cement consisting of a cylindrically shaped syringe gun unit screwed into a cylindrically shaped hollow head of a hollow cylindrical applicator tube to the exterior of which applicator tube near its tip there is affixed an inflatable balloon amenable to receipt of fluid by way of tubing passing through a distinct lumen of said applicator tube which said tubing is attached at one end to a hollow canal in the applicator tube leading via the lumen to the balloon and attached at its other end to a valvular component in turn attached to the cylindrical base of a second syringe gun unit which said apparatus serves to facilitate injection of such cement incrementally into relatively air tight spaces within such shaft formed in view of the inflatibility of such balloon until such shaft is completely filled with such cement.
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Pellegrino Stephen C.
Tucker Guy V.
Welch John J.
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