Surgical instrument for endoscopic surgical procedures

摘要

A surgical instrument for endoscopic surgery having a solid or transparent body and open windows on each of the opposing sides at the distal end, proximate a top open region. The open windows can be arcs or other configurations either open or with bars which are generally integral with the top and extend across the windows. An integrated tissue retractor spring, once activated, extends above the open region and when not activated rests within the open region. A marking member, that can be in fluid contact with a marking reservoir, can be placed at the distal end of the body. In another embodiment the body can be curved using a flexible blade shaft. In a further embodiment the handle has a linear body, containing a blade activation mechanism, at least one activation trigger, and a connector means.

主权项

1. A surgical instrument for endoscopic surgery having an endoscopic blade assembly, said blade assembly having
a. a proximal connector, said connector enabling said blade assembly to be connected to a handle; b. a closed body, said closed body having a top, opposing sides, a distal end and a base opposite said top and containing a blade mechanism and optical system; c. an open region on said top at said distal end; said open region enabling a blade within said blade mechanism to extend beyond said top of said closed body and providing said optical system unobstructed visibility through said top; d. open windows on each of said opposing sides and extending from proximate said top toward said base, said windows providing said optical system unobstructed visibility through said opposing sides; e. an integrated tissue retractor spring, said spring being configured to lie within said open region until activated and once activated extending above said open region to support tissue during dissection; f. a blade activation shaft within said blade mechanism, said blade activation shaft having a groove to receive a bend in said spring.