Ergonomic device

Abstract

An ergonomic instrument is comprised of an elongated body with a writing tip or tool at the lower end, and an upper end for supporting the base of the index finger. Arcuate arms extending up from the upper end of the body are arranged for being positioned on the sides of the index finger. A concave front groove is arranged along the front side of the body for cradling the tip of the index finger. Concave side grooves are arranged along the sides of the body for cradling the tips of the thumb and middle finger. Forwardly protruding ears are arranged between the front and respective sides for being pinched between the index finger and the thumb, and between the index finger and the middle finger.

1 . An ergonomic instrument, comprising: an elongated body adapted for being held in a human hand, wherein said elongated body includes a longitudinal axis, a forward portion facing away from the hand, a rear portion facing the hand, top and bottom surfaces, the top surface adapted for supporting a base of an index finger, said body having pair of arms extending up from said rear portion of said body, and being positioned on opposite sides of the index finger, wherein a tip on the forward portion of the body has at least one of a marker tip, a collet for holding a tool, and a pencil lead feed.  
   
   
       2 . The ergonomic instrument of  claim 1 , wherein said body is about as long as said index finger, so that a fingertip of said index finger is supported adjacent to and proximate said tip, on said top surface of said body.  
   
   
       3 . The ergonomic instrument of  claim 1 , wherein said arms are symmetric and curved, such that they emanate from the body in approximately antiparallel directions, and terminate in parallel directions.  
   
   
       4 . The ergonomic instrument of  claim 1 , wherein said tip comprises a porous marker.  
   
   
       5 . The ergonomic instrument of  claim 1 , wherein said tip comprises a collet for holding a tool.  
   
   
       6 . The ergonomic instrument of  claim 1 , wherein said tip comprises an aperture adapted to feed and retain a series of ferrules.  
   
   
       7 . The ergonomic instrument of  claim 6 , wherein each ferrule comprises a presharpened pencil lead.  
   
   
       9 . The ergonomic instrument of  claim 1 , wherein said tip comprises arms a collet for holding a tool, said collet having a screw-type locking mechanism.  
   
   
       10 . The ergonomic instrument of  claim 1 , wherein said tip comprises arms a collet for holding a tool, said collet having a nut-type locking mechanism.  
   
   
       11 . The ergonomic instrument of  claim 1 , wherein said tip comprises arms a collet for holding a tool, said collet comprising a quick-release mechanism.  
   
   
       12 . The ergonomic instrument according to  claim 1 , wherein said tip comprises an element for placing a marking, and at least one arm comprises an element for erasing a marking placed by said tip.  
   
   
       13 . The ergonomic instrument according to  claim 1 , wherein said tip comprises a pencil lead, and at least one arm comprises a replaceable eraser disposed at a distal portion thereof.  
   
   
       14 . The ergonomic instrument according to  claim 1 , wherein said tip comprises a porous marker, further comprising a retainer for retaining a cap over said porous marker.  
   
   
       15 . The ergonomic instrument according to  claim 14 , further comprising a second retainer for retaining said cap in a position different than over said porous marker.  
   
   
       16 . The ergonomic instrument according to  claim 1 , wherein said tip comprises a collet for holding a sheet instrument, further comprising a sheet instrument having a knife edge held in said collet.  
   
   
       17 . The ergonomic instrument according to  claim 1 , wherein said tip comprises a collet for holding a sheet instrument, further comprising a kit comprising a plurality of instruments, each having a knife edge, adapted to be held in said collet.  
   
   
       18 . The ergonomic instrument according to  claim 1 , wherein at least one arm terminates in a nub, further comprising a rubber eraser having an indentation, said nub being adapted to engage said indentation to retain said eraser in position.