Systems, devices, and related methods for fastening tissue

An endoscopic tissue fastening device, comprising:

• a fastening head including:
• a first arm extending from a proximal end to a distal end of the first arm wherein the first arm includes a staple cartridge, and wherein the first arm includes a joint between the proximal end and the distal end of the first arm;
• and
• a second arm extending from a proximal end to a distal end of the second arm, wherein the second arm rotatably coupled to the first arm;
• and
• a stabilizer including a first wall portion and a second wall portion, wherein a gap separates the first wall portion from the second wall portion in at least some configurations of the stabilizer,
• wherein at least a portion of the stabilizer is movable to transition the first arm from a first configuration, in which a first portion of the first arm is movable relative to a second portion of the first arm at the joint, to a second configuration, in which the first portion of the first arm is prevented from moving relative to the second portion of the first wall portion by the first wall portion of the stabilizer spanning the joint.

An endoscopic tissue fastening device, comprising:

• a shaft that terminates in a distal end face of the shaft;
• a fastening head including:
• a first arm extending from a proximal end to a distal end of the first arm, wherein the first arm includes a staple cartridge, and wherein the first arm includes a joint between the proximal end and the distal end of the first arm;
• and
• a second arm extending from a proximal end to a distal end of the second arm, wherein the second arm rotatably coupled to the first arm;
• and
• a stabilizer including a first wall portion and a second wall portion,
• wherein the stabilizer is configured to transition from a first configuration, in which a first portion of the first arm is movable relative to a second portion of the first arm at the joint, to a second configuration, in which the first portion of the first arm is prevented from moving relative to the second portion of the first wall portion by the first wall portion of the stabilizer spanning the joint.

An endoscopic tissue fastening device, comprising:

• a fastening head including:
• a first arm extending from a proximal end to a distal end of the first arm, wherein the first arm includes a staple cartridge, and wherein the first arm includes a joint between the proximal end and the distal end of the first arm;
• and
• a second arm extending from a proximal end to a distal end of the second arm, wherein the second arm rotatably coupled to the first arm;
• and
• a stabilizer including a first wall portion and a second wall portion;
• wherein at least a portion of the stabilizer is longitudinally movable from a first configuration, in which a gap between the first wall portion and the second wall portion is longitudinally aligned with the joint, such that the distal end of the first arm is movable relative to the proximal end of the second arm, to a second configuration, in which the first wall portion is longitudinally aligned with the joint, such that the distal end of the first arm is immovable relative to the proximal end of the second arm.