Assertion: forceps's tip | /r/CapableOf | penetrate the skin
Facets:
value: from the wound edge
type: LOCATION
value: perpendicularly
type: DEGREE
Source sentences:
text: The tip of the needle should penetrate the skin perpendicularly about 5-10 mm from the wound edge, and the needle should be rotated all the way through the epidermis and dermis by supinating the right hand to rotate the needle through its arc.