Super elastic loop extraluminal materials delivery instrument

Details Super elastic loop extraluminal materials delivery instrument Super elastic loop extraluminal materials delivery instrument

A - Human Necessities

61

M

A61M 25/00 (2006.01) A61B 17/115 (2006.01)

Patent

CA 2684167

A materials delivery instrument is provided and includes an outer sheath and an instrument movably mounted within the outer sheath. The instrument includes a treatment lumen extending substantially the length of the instrument for receipt of treatment material. A super elastic wire is positioned in at least a distal end of the instrument. The super elastic wire forms a loop in an unstressed state to allow the instrument to encircle an anastomosis formed between a pair of tubular tissue sections. The super elastic wire is in a stressed state when the instrument is retracted within the outer sheath and in the unstressed state when the instrument is extended from the outer sheath to enclose the anastomosis. A proximal end of the super elastic wire is oriented substantially perpendicular to a plane formed by the loop to allow the instrument to lie parallel to the tubular tissue sections during the spraying of the anastomosis. A source of air pressure may be provided through the instrument to facilitate spraying the treatment material onto the anastomosis.

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