Optical penetrating adapter for surgical portal

摘要

An optical penetrating adapter for mounting to a surgical portal to permit visualization through the surgical portal includes an adapter member defining a longitudinal axis and having a transparent window adapted to penetrate tissue and to permit visualization therethrough and means for coupling the adapter member to the surgical portal. The transparent window may have various shapes and configurations adapted to penetrate, dissect, resect or separate tissue in a non traumatic manner. Alternatively, the transparent window may incorporate structure such as cutting edges blades, points, etc to pierce, cut or incise tissue.

主权项

1. An optical penetrating system for permitting visualization comprising:
a cannula sleeve including an internal longitudinal passage dimensioned to permit passage of surgical instrumentation; and an adapter member adapted for mounting directly to a distal end of the cannula sleeve, the adapter member defining a central longitudinal axis, and including an optical window with a distal end defining a penetrating surface configured to facilitate advancement of the adapter member through tissue, the optical window including a pair of first surfaces extending proximally and contiguously from the penetrating surface and in a parallel relation to the central longitudinal axis, a pair of second surfaces intersecting the pair of first surfaces, and extending proximally and contiguously therefrom, and a pair of third surfaces intersecting the pair of second surfaces, and extending proximally and contiguously therefrom, the penetrating surface of the optical window being arcuate in configuration and defining a rounded penetrating end face, the end face of the penetrating surface being offset from the central longitudinal axis of the adapter member.