| 摘要 |
PCT No. PCT/US98/19751 Sec. 371 Date May 21, 1999 Sec. 102(e) Date May 21, 1999 PCT Filed Sep. 22, 1998 PCT Pub. No. WO99/15084 PCT Pub. Date Apr. 1, 1999A group or kit of surgical instruments (FIG. 26) for use in minimally invasive surgical procedures. In one embodiment the invention is an instrument (10) with a generally central longitudinal axis and a generally toroidal surface generally transverse to the axis wherein the convex portion (20) of the surface does not extend beyond a line parallel with the longitudinal axis along an outer diameter of the instrument. The surface has a continuous edge (22) having a first end (24) at a shoulder (26) and a second end (28) at the shoulder (26), and spaced from the first end. In another embodiment the instrument has a working end (12) with a generally longitudinal axis, and the working end defined by a generally curved surface along the longitudinal axis wherein the curved surface has a concave portion, and a convex portion wherein the working end has a generally flat tip. |
