Patent ID: 7591822
Filing Date: 2009-09-22
Classification: A61B,A61M

Abstract:
1. A method for delivering implant material into body tissue using a cannula and plunger assembly, the cannula comprising a cannula body having a first longitudinal opening and a second transverse opening proximal to the first longitudinal opening, the plunger slidably disposed within a lumen of the cannula body and having an attached pliable sealing member disposed at a distal end, the pliable sealing member having, in an uncompressed state, a diameter that is larger than the diameter of the lumen of the cannula body, the method comprising: inserting the cannula body into targeted body tissue; perfusing implant material out of the first longitudinal opening into the tissue while the pliable sealing member is in a first position relative to the cannula body and distal to the first longitudinal opening and distal with respect to the cannula body; moving the pliable sealing member from the first position to a second position relative to the cannula body, the second position being located within the cannula body and proximal with respect to the first longitudinal opening and distal with respect to the second transverse opening; and perfusing implant material out of the second transverse opening into the tissue while the pliable sealing member is in the second position, wherein implant material is substantially prevented from exiting the cannula body via the first longitudinal opening.