Patent ID: 6454783
Filing Date: 2002-09-24
Classification: A61B

Abstract:
A surgical instrument system comprising a trocar assembly and a laparoscopic surgical instrument, the trocar assembly comprising:an upper surface; a lower surface disposed below the upper surface; an outer wall connected between the upper surface and the lower surface, a chamber being enclosed within outer wall; and at least one curved trocar sleeve or cannula disposed through the upper surface and the lower surface, the trocar sleeve or cannula comprising: a first end portion; a curved center portion connected to the first end portion; and a second end portion connected to the curved center portion, the first end portion, curved center portion, and second end portion having an opening disposed therethrough, the first end portion and second end portion each forming an acute angle with respect to a tangent to the curved center portion, wherein the opening is capable of releasably receiving a curved instrument, the first end portion, curved center portion and second end portion providing a first orientation direction for an upper portion of the curved instrument and a second orientation direction for a lower portion of the curved instrument, the laparoscopic surgical instrument being an S-shaped instrument with a preformed S-shaped shaft, the shaft being inserted through the trocar sleeve or cannula.