Surgical saw blade

摘要

This invention discloses methods and devices using an improved surgical saw blade for resecting bone tissue during surgical procedures. The surgical saw blade may be used on oscillating, reciprocating, rotary or vibrational surgical saws. The disclosure describes the use of a cutting blade to resect hone tissue without excessive temperature rise during typical surgical procedures. The cutting blade provides a self-clearing design that includes at least two teeth disposed to prevent accumulation of bone chips within the proximity of the teeth. The design of the cutting blade allows the mechanical motion of the blade and other interactions between the blade and the tissue to remove accumulated bone chips and prevent excessive temperature rise.

主权项

1. An apparatus for use in surgery comprising:
an ultrasonic surgical saw with a drive mechanism; a cutting blade attached to the drive mechanism; the cutting blade having a support structure holding a plurality of teeth arranged on a surface, the surface defining a horizontal plane and extending parallel to a longitudinal axis; the teeth extending upwardly from the surface and having a cutting edge extending substantially horizontally and partially across the width of the cutting blade in a direction substantially orthogonal to the longitudinal direction; the teeth arranged in pairs, wherein the teeth in each pair lie on different planes orthogonal to the longitudinal axis of the blade; the teeth in each pair diverging as they extend from the surface to the cutting edge, forming a kerf wider than the support structure; and a gullet extending parallel to the longitudinal axis and between each pair of teeth interconnecting all teeth along the longitudinal axis.