Patent ID: 8690571

Claim:
An anti-rotation instrument system for medical and dental applications, the system comprising an anti-rotation instrument device ( 100 ) comprising: (a) a main handle ( 110 ), wherein the main handle has a first end ( 112 ) and a second end ( 212 ), wherein a first female screw cavity ( 114 ) is disposed on the first end ( 112 ); (b) a first removable hand grip ( 120 ), wherein the removable hand grip has a distal, end ( 122 ) and a proximal end ( 124 ), wherein a channel ( 126 ) is disposed through the hand grip extending from the distal end to the proximal end, wherein a first dent ( 127 ) is disposed on the distal end of the first removable hand grip and extends at least a portion of the channel ( 126 ), wherein the first dent ( 127 ) is a non-round dent; and (c) a first instrumental tip ( 130 ) having a first end ( 134 ) and a second end ( 132 ), wherein the second end ( 132 ) has a threading ( 138 ) disposed at the second end, wherein the threading ( 138 ) matches said female screw cavity ( 114 ), wherein a first anti-rotation key ( 136 ) is disposed on the first instrumental tip between the first end ( 134 ) and second end ( 132 ), wherein the anti-rotation key ( 136 ) is a non-round key, wherein the first anti-rotation key ( 136 ) is adaptive to snuggly fit the first dent ( 127 ) disposed on the distal end of the first removable hand grip; wherein the second end ( 132 ) of the instrumental ( 130 ) passes through the channel ( 126 ) of first hand grip ( 120 ) with the first anti-rotation key ( 136 ) securely resides within the first dent ( 127 ) disposed on the distal end of the first removable hand grip ( 120 ) and wherein the threading ( 138 ) is subsequently screwed into the first female screw cavity ( 114 ) of the main handle ( 110 ) such that the first hand grip ( 120 ) is tightly sandwiched between the first instrumental tip ( 130 ) and main body ( 110 ).