# US 12,599,395 B2 · Surgical forceps and fixation thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,599,395 B2 - Document ID: US12599395B2 - Status: Granted - Kind: B2 - Application number: 19/108,304 - Filed: 2024-09-12 - Published: 2026-03-12 - Granted: 2026-04-14 - Earliest claimed: 2023-09-12 - Assignees: Gyrus ACMI, Inc. - Applicants: Gyrus Acmi, Inc - Inventors: Mark J. Kroll; Cole D. Halstead; William E. Butler; John Mensch; Theodore C. Blus; Robert D. Whitney; Matthew J. Warzecha - Web page: https://patentgrep.com/patent/US12599395B2 ## CPC - A61B 17/29: Forceps for use in minimally invasive surgery - A61B 17/2909: {Handles} - A61B 18/1447: {wherein sliding surfaces cause opening/closing of the end effectors} - A61B 17/295: combined with cutting implements - A61B 18/1445: {at the distal end of a shaft, e.g. forceps or scissors at the end of a rigid rod} - A61B 2017/00526: {Methods of manufacturing} - A61B 2017/2901: {Details of shaft} - A61B 2017/2903: {transferring rotary motion} - A61B 2017/2933: {camming or guiding means} - A61B 2017/2936: {Pins in guiding slots} - A61B 2017/2946: {Locking means} - A61B 2017/2947: {Pivots} - A61B 2018/1455: {having a moving blade for cutting tissue grasped by the jaws} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract A surgical forceps can include an outer shaft, a first jaw, a second jaw, and an inner shaft. The first jaw can include a first flange and a second flange. The first jaw can be pivotably coupled to the outer shaft. The second jaw can include a third flange and a fourth flange. The third flange can be welded to the outer shaft and the fourth flange can be welded to the outer shaft. The inner shaft can be engaged with the first flange and the second flange. The inner shaft can be movable with respect to the outer shaft, the third flange, and the fourth flange to move the first jaw between an open position and a closed position. ## Claims ### Claim 1 A surgical forceps comprising: an outer shaft comprising a first outer arm and a second outer arm; a first jaw including a first flange and a second flange, the first jaw pivotably coupled to the outer shaft; a pivot pin extending through the first flange and the second flange, wherein the pivot pin is welded to each of the first outer arm and the second outer arm; a second jaw including a third flange and a fourth flange, the third flange welded to the first outer arm of the outer shaft and the fourth flange welded to the second outer arm of the outer shaft, a top portion of the third flange including a bevel configured to form a gap between the bevel and an outer surface of the first outer arm, a first seam weld connected to the bevel and the outer surface at the gap to limit extension of the first seam weld beyond the outer surface of the first outer arm; and an inner shaft engaged with the first flange and the second flange and the inner shaft movable with respect to the outer shaft, the third flange, and the fourth flange to move the first jaw between an open position and a closed position. ### Claim 2 (depends on 1) The surgical forceps of claim 1 wherein the inner shaft includes a first inner arm and a second inner arm located laterally inward of the first outer arm and the second outer arm, wherein the surgical forceps includes a cam pin welded to each of the first inner arm and the second inner arm, wherein the first flange and the second flange define, respectively, a first track and a second track, and wherein the inner shaft is movable to move the cam pin along the first track and the second track to move the first jaw between the open position and the closed position. ### Claim 3 (depends on 2) The surgical forceps of claim 2, wherein the third flange is welded to the first outer arm along a top portion of the first outer arm and along a bottom portion of the first outer arm, and wherein the fourth flange is welded to the second outer arm along a top portion of the second outer arm and along a bottom portion of the second outer arm. ### Claim 4 (depends on 3) The surgical forceps of claim 3, wherein third flange and the fourth flange each have a height that is larger than a height of the first outer arm and the second outer arm and is larger than a height of the first inner arm and the second inner arm. ### Claim 5 (depends on 1) The surgical forceps of claim 1, wherein the fourth flange is welded to the second outer arm by a second seam weld. ### Claim 6 (depends on 5) The surgical forceps of claim 5, wherein a length of the first seam weld or the second seam weld is between 2.5 millimeters and 7.5 millimeters. ### Claim 7 (depends on 6) The surgical forceps of claim 6, wherein the first seam weld is a laser seam weld comprised of individual laser spots each having a diameter between 0.05 millimeters and 0.25 millimeters. ### Claim 8 A surgical forceps comprising: an outer shaft comprising a first outer arm and a second outer arm; a pivot pin welded to each of the first outer arm and the second outer arm; a cam pin; a first jaw including a first flange and a second flange, the first jaw pivotably coupled to the outer shaft, and the cam pin extending at least partially through the first flange and the second flange; a second jaw including a third flange and a fourth flange, the third flange welded to the first outer arm of the outer shaft and the fourth flange welded to the second outer arm of the outer shaft; and an inner shaft connected to the cam pin, the inner shaft movable with respect to the outer shaft, the third flange, and the fourth flange to move the cam pin along the first flange and the second flange to move the first jaw between an open position and a closed position; wherein a top portion of the third flange includes a bevel configured to form a gap between the bevel and an outer surface of the first outer arm, a first seam weld connected to the bevel and the outer surface at the gap to limit extension of the first seam weld beyond the outer surface of the first outer arm. ### Claim 9 (depends on 8) The surgical forceps of claim 8, wherein the cam pin is welded to the inner shaft. ### Claim 10 (depends on 8) The surgical forceps of claim 8, wherein the third flange and the fourth flange each have a height that is larger than a height of the first outer arm and the second outer arm. ### Claim 11 (depends on 10) The surgical forceps of claim 10, wherein the third flange is welded to the first outer arm along a top portion of the first outer arm and along a bottom portion of the first outer arm, and wherein the fourth flange is welded to the second outer arm along a top portion of the second outer arm and along a bottom portion of the second outer arm. ### Claim 12 (depends on 11) The surgical forceps of claim 11, wherein the first seam weld extends longitudinally or axially. ### Claim 13 (depends on 8) The surgical forceps of claim 8, wherein the inner shaft includes a pair of inner arms located laterally inward of the first outer arm and the second outer arm, the cam pin welded to each of the inner arms, wherein the first flange and the second flange define, respectively, a first track and a second track, and wherein the inner shaft is movable to move the cam pin along the first track and the second track to move the first jaw between the open position and the closed position. ### Claim 14 (depends on 13) The surgical forceps of claim 13, wherein the third flange includes a third track and the fourth flange includes a fourth track, the cam pin extending at least partially through the third track and the fourth track, and the cam pin movable along the third track and the fourth track. ### Claim 15 (depends on 14) The surgical forceps of claim 14, wherein first track and the second track are curved to allow the first jaw to move between the open position and the closed position with respect to the second jaw, and wherein the third track and the fourth track are straight. ### Claim 16 (depends on 8) The surgical forceps of claim 8, wherein the first flange and the second flange are located laterally inward of the third flange and the fourth flange. ### Claim 17 A surgical forceps comprising: an outer shaft comprising: a first outer arm including an outer surface; and a second outer arm; a pivot pin welded to each of the first outer arm and the second outer arm; a cam pin; a first jaw including a first flange and a second flange, the first jaw pivotably coupled to the outer shaft, and the cam pin extending at least partially through the first flange and the second flange; a second jaw including a third flange and a fourth flange, the fourth flange welded to the second outer arm of the outer shaft, and the third flange including a top portion including a bevel forming a gap between the bevel and the outer surface of the first outer arm; a first seam weld connected to the bevel and the outer surface at the gap to limit extension of the first seam weld beyond the outer surface of the first outer arm; and an inner shaft connected to the cam pin, the inner shaft movable with respect to the outer shaft, the third flange, and the fourth flange to move the cam pin along the first flange and the second flange to move the first jaw between an open position and a closed position.