Instrumentation kit for delivering viscous bone filler material

摘要

A bone filler delivery system comprises a longitudinal channel incorporates a perforated segment at least partially along, at or near its distal end. The channel can be sealed at its distal end so the filler material may be delivered only by the lumen and through the perforated segment. Optionally, said system comprises a permeable bag capable of being inserted into a bone while in collapsed configuration and then expanded when filled with bone voids filler. The mesh structure is designed to allow such permeable bag to expand to a predetermined size or shape under certain pressures and allows exudation of bone void filler through its walls. Extracting the permeable bag out of a treated body promotes flow of bone void filler through its pores into cancellous bone and/or cavity in the bone. The procedure promotes height restoration of the bone and introduces filler in a controlled manner.

主权项

1. A device for filling a void in a patient's bone with bone void filler, comprising:
a. a sleeve for receiving bone void filler; b. a cannula for extending into the bone and for guiding the sleeve to the void; and c. an elongate body insertable through the sleeve and configured to stretch the sleeve along a longitudinal axis thereof; wherein the sleeve is adapted for retaining most of the bone void filler therein until the sleeve is withdrawn from the cannula.