Patent ID: 9301792
Filing Date: 2016-04-05
CPC Classification: A61B

Claim Text:
1. A system for forming an implant to stabilize a vertebral body having an interior of cancellous bone, said system comprising: a delivery cannula defining a delivery passage for providing access to the interior of the vertebral body; a plurality of elements disposed adjacent to one another in said delivery passage of said delivery cannula with a void space defined among said elements, said plurality of elements including a first element adjacent to a second element; a fluent material capable of setting to a hardened condition disposed within at least a portion of said void space in said delivery passage; and a push rod slidably disposed within said delivery passage of said delivery cannula to apply a force to said first element to push said first element in said delivery passage and transfer the force through said first element to said second element to move said elements through said delivery passage and into the interior of the vertebral body, said elements simultaneously carrying said fluent material therewith through said delivery passage and into the interior of the vertebral body upon application of said force to said first element whereby said fluent material sets to the hardened condition to secure said elements and form the implant, said delivery cannula including a delivery wall surrounding said delivery passage wherein said delivery wall defines at least one groove separate from said delivery passage, said at least one groove open to said delivery passage and configured to allow said fluent material to flow around said elements and to allow said fluent material to backflow from said void space into said at least one groove so that pressurization of said fluent material is reduced.