초록 ▼

A retractor for use in laparoscopic surgery comprises a substantially rigid tubular outer member and a retractor member at least partially inserted in the tubular member for slidable motion in an axial direction relative thereto. The retractor member is provided with a distal end portion having limi

A retractor for use in laparoscopic surgery comprises a substantially rigid tubular outer member and a retractor member at least partially inserted in the tubular member for slidable motion in an axial direction relative thereto. The retractor member is provided with a distal end portion having limited flexibility which enables a bending of the distal end portion upon application of a bending force greater than a predetermined threshold. In addition, the distal end portion has a spring bias tending to return the distal end portion to a linear configuration upon relaxation of bending force below the threshold. A camming surface is provided on the tubular member at the distal end thereof for bending the distal end portion during a distally directed longitudinal stroke of the retractor member relative to the tubular member, whereby at least a terminal part of the distal end portion extends at an angle with respect to the tubular member.

대표청구항 ▼

A retractor for use in laparoscopic surgery, comprising: a substantially rigid tubular outer member; a retractor member at least partially inserted in said tubular outer member for slidable motion in an axial direction relative thereto, said retractor member being provided with a distal end portion

A retractor for use in laparoscopic surgery, comprising: a substantially rigid tubular outer member; a retractor member at least partially inserted in said tubular outer member for slidable motion in an axial direction relative thereto, said retractor member being provided with a distal end portion having limited flexibility enabling a bending of said distal end portion upon application of a bending force greater than a predetermined threshold, said distal end portion having a spring bias tending to return said distal end portion to a linear configuration upon relaxation of bending force below said threshold; and flexing means on said tubular outer member for bending said distal end portion during a distally directed longitudinal stroke thereof relative to said tubular outer member, whereby at least a terminal part of said distal end portion extends at an angle with respect to said tubular outer member.