TK 36 - Detail (9).jpg [10/20] Title: Detail of Medical Instruments (IX) - Thangka Thirty-Six Caption: This instrument is in the fourth panel from the top of the thangka. It is a sharp-edged surgical knife used for removing damaged tendons and vessels. Likely because of it's extremely simply nature, this instrument's depiction has almost no variance between difference sets of these medical thangkas.