The device 2, further comprising {HEAD ~ a patch} removably secured to the distal end and sealingly covering {TAIL ~ the aperture} such that, when the patch is removed from the distal end, the distal tip is operable to release the fluid from the reservoir through the aperture into the environment outside the sheath 
sealingly covering
The device 2 , further comprising { HEAD ~ a patch } removably secured to the distal end and sealingly covering { TAIL ~ the aperture } such that , when the patch is removed from the distal end , the distal tip is operable to release the fluid from the reservoir through the aperture into the environment outside the sheath
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL 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