Systems and methods for treating vertebral bodies
First Claim
1. A system for introducing material into bone comprising a filler instrument comprising 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 communicating with the first chamber section, the first chamber section including an inlet for receiving a material into the filler instrument, and the second chamber section including an outlet for discharging the material from the filler instrument, a first plunger sized to pass through the first chamber section and not the second chamber section, the first plunger including an interior bore, and a second plunger sized to pass through the interior bore of the first plunger and into the second chamber section, and whereby 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.
7 Assignments
0 Petitions
Accused Products
Abstract
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.
165 Citations
18 Claims
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1. A system for introducing material into bone comprising
a filler instrument comprising 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 communicating with the first chamber section, the first chamber section including an inlet for receiving a material into the filler instrument, and the second chamber section including an outlet for discharging the material from the filler instrument, a first plunger sized to pass through the first chamber section and not the second chamber section, the first plunger including an interior bore, and a second plunger sized to pass through the interior bore of the first plunger and into the second chamber section, and whereby 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.
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2. A system for introducing material into bone comprising
a filler instrument comprising a first substantially hollow section having a first proximal end, a first distal end, a first interior cross sectional area and a first interior volume; - and a second substantially hollow section having a second proximal end, a second distal end, a second interior cross sectional area and a second interior volume;
the first substantially hollow section being in fluid communication with the second substantially hollow section;
the first interior volume being larger than the second interior volume;
The first interior cross sectional area being larger than the second interior cross sectional area; and
a first ram instrument sized to pass through the first interior cross sectional area. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
- and a second substantially hollow section having a second proximal end, a second distal end, a second interior cross sectional area and a second interior volume;
Specification