Patent ID: 7846134
Filing Date: 2010-12-07
Classification: A61B,A61F,B33Y

Abstract:
1. A flexible walled cannula comprising: a cannula having a head and a deformable cannula tube; and said head having a first proximal end and a second distal end and an orifice through said head from said first proximal end to said second distal end; and said deformable cannula tube having a substantially tube form which is elastically deformable and an inside diameter and an outside diameter smaller than a diameter of said orifice; and said deformable cannula tube mounted within at least a portion of said orifice and extending from said second distal end; and an obturator having a handle, a shaft mounted with said handle, and a blade portion mounted distally with said shaft; and said blade portion having a base, a dulled bottom side, and a top side having a dulled bump or protruded portion, a substantially distal cutting edge, and a width larger than said inside diameter of said cannula, and capable of creating a substantially flat or linear substantially self sealing incision of sufficient size to insert at least a portion of said cannula tube; and said cannula slidably placed onto said shaft with said shaft through said inside diameter and said obturator capable of removal from said cannula via deformation of said cannula tube and without cutting said cannula whereby a surgeon may form an incision within an anatomical organ with said cutting edge, insert said cannula tube into said organ through said incision, remove said obturator from said cannula with said dulled bottom side and dulled bump or protruded portion protecting said cannula tube from being cut, proceed with a surgery through said cannula, and there after remove said cannula and allow said incision to self seal without the use of sutures.