description in the accompanying figures like elements are identified by like reference numerals among the several preferred embodiments of the present invention a rotating catheter tip assembly 10 comprises a housing 12 and a turbine 16 as shown in fig1 the housing 12 includes a conduit 27 that extends through the housing 12 and turbine 16 whereby the turbine 16 rotates relative to the conduit 27 to redirect energy from the conduit 27 preferably conduit 27 is a radiation waveguide and more preferably the radiation waveguide is an optical fiber the rotating catheter tip assembly 10 rotates a reflecting material 17 which then reflects energy emanating from the conduit 27 the reflecting material 17 is coupled with a focusing element 19 to focus the energy from conduit 27 to a target for purposes of this detailed description it will be understood that light is redirected from an optical fiber and reflected light from a given in vivo target is then gathered and redirected back to the optical fiber through the focusing element 19 the focusing element 19 may be any type of lens grin lens and the like suitable to focus optical energy the focusing element 19 can be attached to the conduit as to not rotate and alternatively there is a space in between the focusing element 19 and the conduit 27 whereby the focusing element 19 is attached to turbine 16 as to rotate thereby the turbine 16 includes a center axle 22 and a plurality of vane members 18 as shown in fig2 the center axle 22 includes a central longitudinal bore 26 through which the.