Turning now to FIG 3, a flexible lubricous sheath 115 according to the invention is shown in {HEAD ~ conjunction} with the distal end of {TAIL ~ a biopsy forceps instrument} 110 which is otherwise substantially the same as the known instrument 10 described above and where similar reference numerals refer to similar parts of the instrument 
Turning now to FIG 3 , a flexible lubricous sheath 115 according to the invention is shown in { HEAD ~ conjunction } with the distal end of { TAIL ~ a biopsy forceps instrument } 110 which is otherwise substantially the same as the known instrument 10 described above and where similar reference numerals refer to similar parts of the instrument
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