| hernia knife | A slender bladed knife, with short cutting edge, for dividing the constricting tissues at the mouth of the hernial sac. Synonym: herniotome. (05 Mar 2000) |
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| Humby knife | A knife with a roller and a calibration device to cut skin grafts of different thickness. (05 Mar 2000) |
| spalting knife | A knife used in splitting codfish. Alternative forms: spalding knife. Source: Websters Dictionary (01 Mar 1998) |
| electrode knife | A blade-shaped electrical instrument used to cut tissues by means of a high-frequency electrical current. (05 Mar 2000) |
| Joseph knife | A knife for use in rhinoplasty to separate the overlying skin from the nasal dorsum. (05 Mar 2000) |
| Kirkland knife | A heart-shaped knife used in gingival surgery. (05 Mar 2000) |
| fistula knife | A long, thin-bladed, probe-pointed knife for slitting open a fistula. Synonym: fistula knife, syringotome. Origin: fistula + G. Tome, a cutting (05 Mar 2000) |
| free-hand knife | A manually operated knife or blade usually used to take split-thickness skin grafts; e.g., Blair-Brown knife, Humby knife, Theirsh knife. (05 Mar 2000) |
| lenticular knife | A scraper resembling a sharp spoon. (05 Mar 2000) |