# US 8,540,738 B2 · Method and apparatus for delivery of a ligating suture > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,540,738 B2 - Document ID: US8540738B2 - Status: Granted - Kind: B2 - Application number: 13/471,141 - Filed: 2012-05-14 - Published: 2012-09-06 - Granted: 2013-09-24 - Earliest claimed: 2007-08-08 - Assignees: Cavanaugh Medical Devices, LLC - Applicants: Brian J. Cavanaugh; James J. A. Cavanaugh - Inventors: Brian J. Cavanaugh; James J. A. Cavanaugh - Web page: https://patentgrep.com/patent/US8540738B2 ## CPC - A61B 17/12009: {Implements for ligaturing other than by clamps or clips, e.g. using a loop with a slip knot} - A61B 17/0467: {Instruments for cutting sutures (surgical cutting instruments A61B17/32)} - A61B 17/0487: {Suture clamps, clips or locks, e.g. for replacing suture knots; Instruments for applying or removing suture clamps, clips or locks (suture anchors A61B17/0401; wound clamps or clips A61B17/08; ligaturing clamps or clips A61B17/122)} - A61B 90/361: {Image-producing devices, e.g. surgical cameras} - A61B 2017/0451: {Cams or wedges holding the suture by friction} - A61B 2017/0496: {for tensioning sutures} - A61B 2017/2923: {Toothed members, e.g. rack and pinion} - A61B 2017/2939: {Details of linkages or pivot points} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract An apparatus for ligating a medical protrusion comprises a ligating suture having a proximal end and a distal end configured to circumscribe the medical protrusion, and a one-way lock positioned there between. The apparatus further comprises an endoscope, a cutter blade configured to cut the suture, and a device for ligating a medical protrusion. The device comprises a tubular body having a proximal end and a distal end, a handle positioned at the proximal end, an endoscope controller operably connectable to the endoscope, a cutting controller operably connectable to the cutter blade, a suture controller configured to be operatively coupled with the suture, a curved bridge positioned at the distal end, the bridge having a proximal end and a distal end, and an armature, having a proximal end and a distal end, configured to releaseably retain at least a portion of the suture. ## Claims ### Claim 1 A device for ligating a medical protrusion, the device comprising: a) a tubular body having a proximal end and a distal end; b) a handle positioned at the proximal end of the tubular body; c) a suture controller configured to be operatively coupled with a ligating suture; d) an armature connected to the distal end of the tubular body and configured to releasably retain at least a portion of the ligating suture, said armature having a balloon shaped loop; and e) an armature controller operably connected to the armature through a controller wire, and configured to permit a user to manipulate an angular position of the armature about a rotational axis perpendicular to the tubular body to permit positioning of the balloon shaped loop and placement of at least a portion of the ligating suture about the medical protrusion, wherein the device further comprises a curved bridge positioned at the distal end of the tubular body, said bridge having a proximal end connected with the distal end of the tubular body and a distal end connected to the proximal end of the armature. ### Claim 2 (depends on 1) The device of claim 1, wherein the armature is readily removable. ### Claim 3 (depends on 1) The device of claim 1, wherein the armature is connected to the tubular body through a hinge, and configured such that the armature is rotatable about the hinge. ### Claim 4 (depends on 1) The device of claim 1, further comprising an endoscope controller operably connectable to an endoscope. ### Claim 5 (depends on 4) The device of claim 4, wherein the endoscope has at least one lighting means and at least one image capturing means positioned at the distal end, wherein the endoscope is configured to be movable with respect to the device allowing the user to visually capture the medical protrusion to be ligated. ### Claim 6 (depends on 1) The device of claim 1, wherein manipulation of the suture controller is configured to cause the ligating suture to ligate the medical protrusion. ### Claim 7 (depends on 1) The device of claim 1, further comprising a cutting controller operably connectable to a cutter blade. ### Claim 8 (depends on 7) The device of claim 7, wherein the cutter blade is removable. ### Claim 9 (depends on 7) The device of claim 7, wherein the device is configured such that the cutter blade cuts the suture. ### Claim 10 (depends on 9) The device of claim 9, wherein the device is configured such that the cutter blade cuts the suture in such a way as to leave little excess suture material with the ligated medical protrusion. ### Claim 11 (depends on 1) The device of claim 1, wherein the balloon shaped loop has a distal end that is round and a proximal end that is “V” shaped. ### Claim 12 (depends on 1) The device of claim 1, wherein the armature is offset with respect to the tubular body axis. ### Claim 13 (depends on 1) The device of claim 1, wherein the armature is configured to receive the removable ligating suture manually. ### Claim 14 (depends on 1) The device of claim 1, wherein the armature has “C” shaped cross section. ### Claim 15 (depends on 14) The device of claim 14, wherein the edges of the “C” shaped armature cross section are configured to provide a narrower opening than the suture diameter. ### Claim 16 (depends on 1) The device of claim 1 further comprising a ligating suture releasably retained in the armature, the ligating suture comprising a ligating loop having a distal one way locking loop and a proximal support member. ### Claim 17 (depends on 16) The device of claim 16, wherein the ligating suture is configured such that pulling the support member in the proximal direction, causes the constriction of the distal one-way locking loop when circumscribed about a medical protrusion. ### Claim 18 (depends on 16) The device of claim 16, wherein the one-way locking device comprises a preformed ball with a central channel through which the suture passes. ### Claim 19 (depends on 16) The device of claim 16, wherein the ligating suture is biodegradable.