Forceps jaw flanges

Abstract

Forceps can include a drive pin, an outer tube, a first jaw, a second jaw, and an inner shaft. The outer tube can extend along a longitudinal axis. The first jaw can be pivotably connected to the outer tube. The first jaw can include a first flange that can be located at a proximal portion of the first jaw. The first flange can include a first chamfered edge configured to limit extension of the first flange laterally beyond an outer surface of the outer tube when the first jaw is in a closed position. The inner shaft can be located within the outer tube and can extend along the longitudinal axis.

1 . A forceps comprising:
 a drive pin;   an outer tube extending along a longitudinal axis;   a first jaw pivotably connected to the outer tube, the first jaw including a first flange located at a proximal portion of the first jaw, the first flange including a first profiled surface extending at a nonzero angle from a laterally outer surface of the first flange to an upper edge of the first flange, the first profiled surface configured to limit extension of the first flange laterally beyond an outer surface of the outer tube when the first jaw is in a closed position;   a second jaw connected to the outer tube; and   an inner shaft located within the outer tube and extending along the longitudinal axis, the inner shaft connected to the first flange, via the drive pin, the inner shaft translatable along the outer tube to drive the drive pin and the first flange to move the first jaw between an open position and the closed position.   
     
     
         2 . The forceps of  claim 1 , wherein the first jaw includes a second flange located at the proximal portion of the first jaw, the second flange including a second profiled surface configured to limit extension of the second flange laterally beyond the outer surface of the outer tube when the first jaw is in the closed position. 
     
     
         3 . The forceps of  claim 2 , wherein the first flange and the second flange each include a proximal portion extending laterally outward of the outer tube when the jaws are in the open position, the proximal portions having an oval profile, the first profiled surface and the second profiled surface intersecting the oval profile. 
     
     
         4 . The forceps of  claim 2 , wherein the second jaw includes a third flange and a fourth flange, each located at a proximal portion of the second jaw. 
     
     
         5 . The forceps of  claim 4 , wherein the first flange and the second flange are positioned laterally outward of the third flange and the fourth flange. 
     
     
         6 . The forceps of  claim 5 , wherein the third flange and the fourth flange include a third profiled surface and a fourth profiled surface, respectfully, configured to limit extension of the third flange and the fourth flange, respectively, laterally beyond the outer surface of the outer tube. 
     
     
         7 . The forceps of  claim 1 , wherein the second jaw is pivotably connected to the outer tube. 
     
     
         8 . The forceps of  claim 1 , wherein the profiled surface is a chamfer or a bevel. 
     
     
         9 . The forceps of  claim 1 , wherein the first profiled surface is angled radially inward as the profiled surface extends from an axially distal location to an axially proximal location. 
     
     
         10 . A forceps comprising:
 a drive pin;   an outer tube extending along a longitudinal axis;   a first jaw connected to the outer tube, the first jaw including a first flange and a second flange located at a proximal portion of the first jaw, the first flange including a first profiled edge extending from a laterally outer surface of the first flange to an upper edge of the first flange, the first profiled edge configured to limit extension of the first flange laterally beyond an outer surface of the outer tube;   a second jaw pivotably connected to the outer tube; and   an inner shaft located within the outer tube and extending along the longitudinal axis, the inner shaft connected to the first flange, via the drive pin, the inner shaft translatable along the outer tube to drive the drive pin and the second flange to move the second jaw between open and closed positions.   
     
     
         11 . The forceps of  claim 10 , wherein the second flange includes a second profiled edge extending from a laterally outer surface of the second flange to an upper edge of the second flange, the second profiled edge configured to limit extension of the second flange laterally beyond an outer surface of the outer tube. 
     
     
         12 . The forceps of  claim 11 , wherein the second jaw includes a third flange and a fourth flange, each located at a proximal portion of the second jaw. 
     
     
         13 . The forceps of  claim 12 , wherein each of the third flange and the fourth flange include a first track receiving the drive pin at least partially therein. 
     
     
         14 . The forceps of  claim 13 , wherein the inner shaft comprises a pair of arms extending from a distal portion of the inner shaft, the drive pin securable directly to the pair of arms, and the inner shaft translatable with respect to the outer tube to drive the drive pin to move the second jaw between open and closed positions. 
     
     
         15 . The forceps of  claim 13 , wherein the first profiled edge is located with respect to the first track to extend a thickness of the first flange and the second flange adjacent a distal termination of the respective tracks. 
     
     
         16 . A medical device comprising:
 a drive pin;   an outer tube extending along a longitudinal axis;   a first jaw pivotably connected to the outer tube, the first jaw including a first flange located at a proximal portion of the first jaw, the first flange including a first profiled surface extending at an angle from a laterally outer surface of the first flange to an upper edge of the first flange;   a second jaw connected to the outer tube; and   an inner shaft located within the outer tube and extending along the longitudinal axis, the inner shaft connected to the first flange, via the drive pin, the inner shaft translatable along the outer tube to drive the drive pin and the first flange to move the first jaw between an open position and a closed position.   
     
     
         17 . The medical device of  claim 16 , wherein the first jaw includes a second flange located at the proximal portion of the first jaw, the second flange including a second profiled surface extending at an angle from a laterally outer surface of the second flange to an upper edge of the second flange, the first profiled surface configured to limit extension of the first flange laterally beyond an outer surface of the outer tube when the first jaw is in the closed position, and the second profiled surface configured to limit extension of the second flange laterally beyond an outer surface of the outer tube when the first jaw is in the closed position. 
     
     
         18 . The medical device of  claim 13 , wherein each of the first flange and the second flange include a first track receiving the drive pin at least partially therein. 
     
     
         19 . The medical device of  claim 16 , wherein the first profiled surface defines two edges extending substantially axially along the first flange when the first jaw is in the closed position, the two edges located radially inward of the outer surface of the outer tube when the first jaw is in the closed position. 
     
     
         20 . The medical device of  claim 16 , wherein the first profiled surface is angled radially inward as the profiled surface extends from an axially distal location to an axially proximal location.