Stereoguide for clamping neurosurgical instruments

Abstract

A stereoguide including first and second guide elements spaced relative to each other through which instruments are passed along an axis of insertion towards a target; characterised by a first clamp having a clamping position on the axis between the guide elements and the target and a second clamp having a clamping position on the axis of insertion and on the opposite side of the guide elements to the first clamp for clamping instruments passing through the guide elements.

1 . A stereoguide comprising first and second guide elements spaced relative to each other through which instruments are passed along an axis of insertion towards a target; characterised by a first clamp having a clamping position on the axis between the guide elements and the target and a second clamp having a clamping position on the axis of insertion and on the opposite side of the guide elements to the first clamp for clamping instruments passing through the guide elements.  
   
   
       2 . A stereoguide according to  claim 1 , wherein each clamp is moveable away from its clamping position.  
   
   
       3 . A stereoguide according to  claim 3 , wherein each clamp is swivelable away from its clamping position.  
   
   
       4 . A stereoguide according to  claim 1 , wherein the second clamp is disposed between the guide elements and the target.  
   
   
       5 . A stereoguide according to  claim 4 , further comprising a post extending from the first guide element and carrying the first clamp, and a leg extending from the second guide element and carrying the second clamp.