distal end of the sheath handle assembly 100 not pictured here while preventing the return of the distal end to a linear configuration fig1 3 illustrate an embodiment of the sheath handle assembly 100 fig4 7 illustrate components of an embodiment of the sheath handle assembly 100 fig8 a b illustrate the sheath handle assembly 100 as it is operated by a user to deflect the distal end of the sheath handle assembly 100 fig9 11 illustrate the sheath handle assembly 100 as the gear locking system 160 is actuated fig1 a b illustrate an alternative embodiment of the gear locking system 160 of fig1 fig1 a b show the multiple components of the sheath handle assembly 100 as they are interconnected fig1 a provides a proximal view of the sheath handle assembly 100 with sheath housing 110 control handle 120 and a portion of the locking trigger 150 connected to the distal end of the sheath handle assembly 100 is a lumen with a deflectable end not pictured here that will be further discussed in fig8 a b fig1 b shows a cross sectional view of the sheath handle assembly 100 that includes a sheath housing 110 a control handle 120 a gear locking system 160 which is made up of the tension gear 130 and the brake pad 140 a locking trigger 150 and a tension wire 170 each of the individual components of the sheath handle assembly 100 will be described in further detail below fig2 a b provide enlarged cross sectional views.