Patent ID: 8016843
Filing Date: 2011-09-13
Classification: A61B,A61F

Abstract:
1. A cutting device for use in ophthalmologic surgery, comprising: an ultrasonic energy transmission section and a tip section, said tip section having a distally flattened material contact blade section that comprises an inferior, material contact point, an inferior edge that extends proximally away from said contact point, and a superior, forward edge that extends in sloped fashion proximally away from said contact point and which forward edge is free of an aspiration port, the inferior, material contact point being the distal most point of the blade section such that the entire blade section falls at or proximal to a superior to inferior extending plane that passes through said material contact point and extends transverse to a proximal-to-distal extending axis of said blade section, and wherein said superior forward edge extends between an upper edge and a lower edge of said blade section, and said lower edge includes said inferior edge which extends to said contact point and which inferior edge is thinner than said upper edge, and wherein said inferior edge includes a linear section originating and extending proximally away from the distal most point of the blade section and wherein said blade section has opposing essentially planar side walls extending proximally away from said superior forward edge positioned at the distal end of said blade section and which side walls diverge in a distal to proximal direction starting from said superior forward edge, and wherein said side walls converge in a superior to inferior direction at least at a border region with said superior forward edge; wherein said inferior edge includes a recessed, concave section which originates and extends in a superior direction from the proximal most end of the linear section.