Primary use
It is used during closure of wounds especially laparotomy wounds to keep the tissues out . So that surgeon has good field of vision. As blades are small in size it can be used superficially mainly.
Identification
On one side it has solid blade and pronged blade on other side. If surgeon retract from pronged side he can visualise the structures in between the prongs eg any bleeder etc..
Sterilisation
by autoclaving
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