06641587 is referenced by 146 patents and cites 7 patents.

A filler instrument comprises a first chamber section having a first cross sectional area and a second chamber section having a second cross sectional area less than the first cross sectional area. The second chamber section communicates with the first chamber section. The first chamber section includes an inlet for receiving a material into the filler instrument, and the second chamber section includes an outlet for discharging the material from the filler instrument. A first plunger is sized to pass through the first chamber section and not the second chamber section. A second plunger is sized to pass through an interior bore of the first plunger and into the second chamber section. In use, the first plunger displaces material residing in the first chamber section through the second chamber section toward the outlet, and the second plunger displaces material residing in the second chamber section through the outlet.

Title
Systems and methods for treating vertebral bodies
Application Number
9/905170
Publication Number
6641587 (B2)
Application Date
July 13, 2001
Publication Date
November 4, 2003
Inventor
Paul M Sand
San Carlos
CA, US
Ryan P Boucher
San Francisco
CA, US
Mark A Reiley
Piedmont
CA, US
Michael L Reo
Redwood City
CA, US
Robert M Scribner
Niwot
CO, US
Agent
Ryan Kromholz & Manion S C
US
Assignee
Kyphon
CA, US
IPC
A61B 17/00
View Original Source