Systems and methods for placing materials into bone
AssigneeKyphon Inc.
InventorsRobert M. Scribner, Michael L. Reo, Mark A. Reiley, Ryan Boucher
Life of this patent
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Abstract
Systems and methods for delivering material into bone deploy a cannula through soft tissue to establish a subcutaneous path into bone. A material is introduced into bone through the cannula. The systems and methods advance a tamping instrument through the cannula to urge material residing in the cannula into bone. The introducing step delivers material at a pressure no greater than about 360 psi.
Claims62
An instrument for tamping material into bone through a subcutaneous path, the instrument comprising a body having a length and a terminus, and including markings located along the length at increments from the terminus.
A tamping instrument capable of advancement through a subcutaneous cannula having a distal end which leads into bone, the tamping instrument comprising a body having a terminus which, during the advancement, urges material residing in the cannula into bone, the body having markings to visually gauge the advancement of the terminus through the subcutaneous cannula.
Apparatus for delivering material into bone comprising
- a cannula for establishing a subcutaneous path into bone, and
- a tamping instrument for advancement through the cannula comprising a body having a terminus which, during the advancement, urges material residing in the cannula into bone.
An assembly of items for delivering material into bone comprising
- a cannula,
- a tamping instrument comprising a body having a terminus, and
- instructions for using the kit according to a method comprising the steps of
- deploying the cannula to establish a subcutaneous path into bone,
- introducing a material into bone through the cannula, and
- advancing the terminus through the cannula to urge material residing in the cannula into bone.
Apparatus for introducing material into bone through a subcutaneous cannula, the apparatus including a delivery device to convey the material at a delivery pressure of no greater than about 360 psi, and a nozzle instrument capable of advancement through the subcutaneous cannula into bone and comprising a proximal fitting to couple the nozzle instrument to the delivery device and a nozzle terminus through which the material conveyed by the delivery device enters bone at the delivery pressure.
An assembly of items for introducing material into bone comprising
- a cannula,
- a delivery device having an actuator to convey material at a delivery pressure of no greater than about 360 psi,
- a nozzle instrument capable of advancement through the cannula into bone and comprising a proximal fitting to couple the nozzle instrument to the delivery device and a nozzle terminus, and
- instructions for using the kit according to a method comprising the steps of
- deploying the cannula to establish a subcutaneous path into bone, and
- actuating the delivery device to convey material at the delivery pressure through the nozzle terminus into bone.
A tool for deployment into bone comprising
- a catheter tube having a distal region,
- an expandable structure carried by the distal region for compacting cancellous bone, and
- an introducer sleeve slidably carried by the catheter tube for movement between a retracted position spaced from the expandable structure and an advanced position overlying the expandable structure, the introducer sleeve including
- a tubular main body dimensioned to compress the expandable structure when the introducer sleeve is in the advanced position, and
- a collar extending beyond the distal region of the catheter tube when the introducer sleeve is in the advanced position, the collar being dimensioned larger than the tubular main body to releasably engage an end of a cannula, whereby the introducer sleeve both sizes and aligns the expandable structure for passage into the cannula through the end of the cannula.
Apparatus for introducing material into bone through a subcutaneous cannula, the apparatus including a delivery device to convey the material at a delivery pressure of no greater than about 360 psi, a nozzle instrument capable of advancement through the subcutaneous cannula into bone and comprising a proximal fitting to couple the nozzle instrument to the delivery device and a nozzle bore through which the material conveyed by the delivery device enters bone at the delivery pressure, and a stylet capable of advancement into the nozzle bore through the proximal fitting to close the nozzle bore and, with the nozzle instrument, forming a tamping instrument capable of advancement through the subcutaneous cannula to urge residual material from the subcutaneous cannula.
A method for delivering material into bone comprising the steps of
- deploying a cannula through soft tissue to establish a subcutaneous path into bone,
- introducing a material into bone through the cannula, and
- advancing a tamping instrument through the cannula to urge material residing in the cannula into bone.
Dependencies are inferred from the claim text.