The Haartman procedure (also called the Haartman palatoplasty or Haartman's operation) is a surgical technique used to repair cleft palate. It involves raising mucoperiosteal flaps from the hard palate and using them to close the cleft in layers, with attention to reconstructing the levator veli palatini muscle sling to restore velopharyngeal function.

The web search returned results about the Hartmann procedure (colorectal surgery) and general cleft palate repair - but not specifically a "Haartman" procedure. Let me search the medical library and dig deeper to clarify what this refers to.

The searches confirm that "Haartman" as a procedure name does not appear in the medical literature or library - it is likely a spelling variant of Hartmann's procedure (the well-known colorectal surgery). Could you clarify what you're looking for?