Surgical end effector assemblies such as for use in surgical robotic systems and methods of manufacturing the same

An end effector assembly of a surgical instrument, the end effector assembly comprising:

• a first jaw member including a first pair of proximal flags and a distal body extending distally from the first pair of proximal flags and defining a first tissue contacting surface, the proximal flags of the first pair of proximal flags defining a transverse distance therebetween;
• a second jaw member including a second pair of proximal flags and a distal body extending distally from the second pair of proximal flags and defining a second tissue contacting surface, wherein the first pair of proximal flags is disposed between the proximal flags of the second pair of proximal flags;
• a pivot pivotably coupling the first and second pairs of proximal flags with one another to enable pivoting of at least one of the first or second tissue contacting surfaces relative to another of the first or second tissue contacting surfaces between spaced apart and approximated positions for grasping tissue therebetween;
• and
• a cam drive assembly including a cam block and a cam pin fixed relative to the cam block, the cam block disposed between the proximal flags of the first pair of proximal flags with the cam pin operably engaging cam slots defined within the proximal flags of the first and second pairs of proximal flags,
• wherein the cam block has a rectangular configuration defining a first diagonal transverse dimension and a second diagonal transverse dimension opposite the first diagonal transverse dimension, the first diagonal transverse dimension greater than the transverse distance and the second diagonal transverse dimension less than the transverse distance.

An end effector assembly of a surgical instrument, the end effector assembly comprising:

• a first jaw member including a pair of first proximal flags and a distal body extending distally from the pair of first proximal flags and defining a first tissue contacting surface;
• a second jaw member including at least one second proximal flag and a distal body extending distally from the at least one second proximal flag and defining a second tissue contacting surface;
• a pivot pivotably coupling the pair of first proximal flags and the at least one second proximal flag with one another to enable pivoting of at least one of the first or second tissue contacting surfaces relative to another of the first or second tissue contacting surfaces between spaced apart and approximated positions for grasping tissue therebetween;
• and
• a cam drive assembly including a cam block and a cam pin fixed relative to the cam block, the cam block disposed between the first proximal flags of the pair of first proximal flags with the cam pin operably engaging cam slots defined within the first proximal flags of the pair of first proximal flags, wherein the cam block includes a first diagonal defined between a pair of diagonally opposed chamfered corners.