Hollow graspers

A surgical grasper comprising:

• an inner shaft assembly including an inner shaft defining a lumen for passage of a surgical instrument and an engaging portion peripherally arranged with the inner shaft such that the engaging portion conforms to a contour of the inner shaft;
• an outer shaft slidably disposed about the inner shaft, the outer shaft including opposing supporting fingers, each of the supporting fingers including apertures;
• a grasper assembly operatively coupled to the opposing supporting fingers of the outer shaft, the grasper assembly including a first jaw and a second jaw, the first jaw including a first grasping portion and a first pair of extension members extending proximally from the first grasping portion such that the first pair of extension members selectively engages the inner shaft, the second jaw including a second grasping portion and a second pair of extension members extending proximally from the second grasping portion such that the second pair of extension members selectively engages the inner shaft, the first pair of extension members and the second pair of extension members including bores, wherein axial displacement of the inner shaft transitions the grasper assembly between an approximated configuration and a spaced apart configuration;
• and
• pins extending through each of the bores of the first pair of extension members, each of the bores of the second pair of extension members, and each of the apertures of the supporting fingers thereby coupling the first pair of extension members, the second pair of extension members, and the supporting fingers.

A surgical grasper comprising:

• a first handle;
• a second handle pivotably coupled to the first handle;
• an outer shaft coupled to the first handle, the outer shaft including fingers extending from a distal end of the outer shaft, each of the fingers including apertures;
• an inner shaft slidably disposed in the outer shaft and operably coupled to the first handle, the inner shaft having teeth disposed at a distal end of the inner shaft;
• and
• a grasping assembly having a first jaw and a second jaw, the first jaw and the second jaw pivotably coupled to the fingers of the outer shaft such that the first jaw and the second jaw are transitionable between an approximated configuration and a spaced apart configuration, the first jaw having a first pair of extensions and the second jaw having a second pair of extensions, the first pair of extensions and the second pair of extensions operably engaged with the teeth of the inner shaft such that axial movement of the inner shaft relative to the outer shaft transitions the first jaw and the second jaw between the approximated configuration and the spaced apart configuration, the first pair of extensions and the second pair of extensions each define bores that are dimensioned to receive pins extending through the apertures of the fingers thereby operably coupling the first pair of extensions and the second pair of extensions to the fingers.