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|4 major categories of surgical instruments
|Cutting and Dissecting, Clamping and Grasping, Retracting, and Suctioning
|How are instruments selected
|according to pt size, surgical procedure, and knowledge of anatomy
|Name / describe 6 major parts of a surgical instrument
|Points (tips); Jaws (hold tissue tightly); Box Lock (hinged joint); Shank (btw box lock & Finger Rings); Ratchets (interlock to keep instrument locked when instrument is closed)
|2 surgical instruments subgroups used for retraction
|Hand held retraction instruments
|Vein; Skin Rake; Army Navy; Appendiceal; Richardson; Deaver; Malleable (Ribbon)
|Describe hand held retraction instrument
|blade usually at rt angle to shaft and the blades may be smooth, raked, or hooked; handles may be hooked, notched, or ring-shaped to give holder a firm grip without tiring
|Vein retractor =
|smooth small blade which retracts tissue without puncturing it (i.e. vessels).
|Skin Rake retractor =
|toothed retractor used to grasp and pull back tissue such as skin.
|Army Navy retractor =
|Appendiceal retractor =
|short right angled blade, used on abdominal cases.
|Richardson retractor =
|abdominal retractor varying in blade size.
|Deaver retractor =
|curved abdominal retractor varying in blade width.
|Malleable (Ribbon) retractor =
|bendable and may be shaped by the surgeon at the operative site
|Describe Self-retaining retraction instrument
|either 2 blades held apart by a ratchet or by frames to which various blades may be attached, where one side acts as an anchor and pressure is exerted on the other side
|Self-retaining retraction instruments
|Weitlaner (Self-Retaining Thyroid; Balfour
|Weitlaner (Self-Retaining Thyroid) retractor =
|ratchet style, used for superficial use.
|Balfour retractor =
|abdominal retractor to which a bladder blade may be added