Reciprocating saw blade cartridge that includes a static bar to which a reciprocating rack is attached

A blade cartridge for use with a surgical saw comprising:

• a bar including a first holding feature for removably holding the bar static to the saw;
• a rack including:
• a base moveably disposed in the bar,
• a head extending from the base and located outside of a perimeter of the bar and having cutting teeth with a width defining a kerf cut by the teeth of sufficient width to accommodate the perimeter of the bar adjacent the head, and
• a drive link extending from the base of the rack and having a second holding feature for releasably engaging a reciprocating drive integral with the saw,
• wherein:
• one of the base and the bar includes a guide slot,
• the other of the base and the bar includes a static member extending into the guide slot so as to retain the rack in the bar, and the guide slot and the static member are collectively shaped to allow the rack to engage in reciprocal movement in a proximal direction and a distal direction along a longitudinal axis of the bar, and
• the bar includes two plates and a spacer located between the plates separating the plates from each other, and the base of the rack is located between the plates.