When a needle is appropriately connected to a needle housing having a side arm, the inventive probe can be inserted through the channel in the side arm and housing and into and through the needle to {HEAD ~ an appropriate position} near {TAIL ~ the proximal end} of the needle 
near
When a needle is appropriately connected to a needle housing having a side arm , the inventive probe can be inserted through the channel in the side arm and housing and into and through the needle to { HEAD ~ an appropriate position } near { TAIL ~ the proximal end } of the needle
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH