Patent ID: 7160306
Filing Date: 2007-01-09
Classification: A61B,A61F

Abstract:
1. A set of surgical instruments for use in the treatment of vertebral body compression fractures comprising: at least one first instrument configured to widen a working path formed in a collapsed vertebral body, the first instrument comprising a rod-shaped body having a distal end, a proximal end and a peripheral surface, and a grip section fixedly provided on the proximal end of the rod-shaped body, wherein the distal end portion of the rod-shaped body is configured to be inserted into the working path to increase its diameter; at least one second instrument configured to be used in the treatment of vertebral body compression fractures to reduce deformity by returning the upper portion of a collapsed vertebral body to a substantially original shape, the second instrument to reduce deformity comprising: a rod-shaped main body having a distal end, a proximal end and a peripheral surface; a grip section fixedly provided on the proximal end of the main body; a pushing section integrally provided on the distal end of the main body, the pushing section being inclined with respect to the main body to push the upper portion of the collapsed vertebral body, wherein the angle of inclination between the pushing section of the instrument and the main body is constant and lies within the range of 5 to 15°; and a marker provided on the grip section to indicate a direction in which the pushing section is inclined; a third instrument for inserting a filler into the vertebral body; the third instrument comprising a tubular body having a distal end, a proximal end and a peripheral surface, the tubular body having a lumen passing through the tubular body from the proximal end to the distal end, an ejector bar which is configured to be inserted into the lumen of the tubular body to eject a filler filled in the lumen, the ejector bar having a distal end and a proximal end, and a grip section which is fixedly provided on the proximal end of the ejector bar; and a fourth instrument for impacting the filler inserted in the vertebral body to a high density, the fourth instrument comprising a rod-shaped main body having a distal end, a proximal end and a peripheral surface, an impacting section provided on the distal end of the main body for impacting the filler, the impacting section having a distal end, and a grip section which is fixedly provided on the proximal end of the main body, wherein the grip sections of the first to fourth instruments are different from each other so that these instruments can be tactily identified by their grip sections.