Patent ID: 8167899
Filing Date: 2012-05-01
Classification: A61B

Abstract:
1. A surgical instrument for insertion into human tissue, said instrument comprising: an outer sleeve having a distal end, a proximal end, a passage therethrough, and a mid-longitudinal axis; a middle sleeve having a distal end, a proximal end, a passage therethrough, and a mid-longitudinal axis, said middle sleeve being sized and configured to be inserted into said passage of said outer sleeve, at least a portion of said distal end of said middle sleeve being configured to pass through and extend beyond said distal end of said outer sleeve; a trocar having a distal end, a proximal end, and a mid-longitudinal axis, said trocar being sized and configured to be inserted into said passage of said middle sleeve, at least a portion of said distal end of said trocar being configured to pass through said outer sleeve and extend beyond said distal end of said outer sleeve; and a handle having a passage coaxial with said passage of said outer sleeve, said passage of said middle sleeve, and the mid-longitudinal axis of said trocar, said handle being adapted to be removably coupled to said outer sleeve, said handle including a release mechanism having a first position for holding said trocar, said middle sleeve, and said outer sleeve in fixed relationship to said handle, said release mechanism having a second position for holding said middle sleeve and said outer sleeve in fixed relationship to said handle, said release mechanism having a third position for holding said outer sleeve in fixed relationship to said handle.