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Retractors
Surgery I
Question | Answer |
---|---|
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; self-retaining |
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 = | double-ended 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 |