# US 12,594,077 B2 · Endoscopic magnetic anastomosis system, and methods and devices for forming an anastomosis > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,594,077 B2 - Document ID: US12594077B2 - Status: Granted - Kind: B2 - Application number: 18/015,172 - Filed: 2020-07-07 - Published: 2023-08-10 - Granted: 2026-04-07 - Earliest claimed: 2020-07-07 - Assignees: IEMIS (HK) Limited - Applicants: iEMIS (HK) Limited - Inventors: Chung Kwong Yeung; Wing Fai Lam; Yasser Khan Eronico Waqar; Hon Shing Chan; Biji Sreedhar - Web page: https://patentgrep.com/patent/US12594077B2 ## CPC - A61B 17/1114: {of the digestive tract, e.g. bowels or oesophagus} - A61B 17/00234: {for minimally invasive surgery (A61B17/0218, A61B17/0469, A61B17/12013, A61B17/1285, A61B17/29, A61B17/320016 take precedence)} - A61B 34/37: Leader-follower robots (A61B34/35 takes precedence) - A61B 2017/003: {Steerable} - A61B 2017/00477: {Coupling (A61B2017/0046 takes precedence)} - A61B 2017/00557: {inflatable (A61B2017/22051 takes precedence)} - A61B 2017/00818: {Treatment of the gastro-intestinal system} - A61B 2017/00876: {magnetic} - A61B 2017/1139: {Side-to-side connections, e.g. shunt or X-connections} - A61B 2017/22054: {with two balloons} - A61B 2017/22067: {Blocking; Occlusion (A61B2017/22054 takes precedence)} - A61B 2017/22069: {Immobilising; Stabilising} - A61B 2017/306: {holding by means of suction} - A61B 2034/301: {for introducing or steering flexible instruments inserted into the body, e.g. catheters or endoscopes} - A61B 2217/002: Auxiliary appliance - A61M 2025/0024: {Expandable catheters or sheaths} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)} ## Abstract An endoscopic anastomosis system (100), devices, and methods. The system (100) includes a first main body (200). The system (100) includes a head assembly (300) secured to the first main body (200). The head assembly (300) includes an opening (318), a first pressure port (332), and a first expandable member (320). The system (100) includes a second main body assembly (400), at least a portion of the second main body assembly (400) moveable through the opening (318) of the head assembly (300). The second main body assembly (400) includes a second expandable member (420) and a second pressure port (422). The system (100) includes a magnetic implant assembly (430) secured to an end of the second main body assembly (400). The magnetic implant assembly (430) includes a magnetic body (432). The magnetic body (432) is formed as a cylindrical body with a central axis. The magnetic body (432) includes a front wall (432a), a rear wall (432b), and a exterior circumferential sidewall (432c) formed around the magnetic body (432). The exterior circumferential sidewall (432c) defines a thickness of the magnetic body (432). The exterior circumferential sidewall (432c) is formed at a first radius from the central axis. ## Claims ### Claim 1 An endoscopic anastomosis system, the endoscopic anastomosis system comprising: a first main body assembly, the first main body assembly being an elongated body having a first end and a second end, at least a portion of the second end of the first main body assembly controllable to bend in a plurality of directions; a head assembly, the head assembly having a first end and a second end, the first end of the head assembly secured to the second end of the first main body assembly, the head assembly including: a head assembly body, the head assembly body including: a second main body assembly opening; a first pressure port, the first pressure port configured to apply a negative pressure; and a first expandable member, the first expandable member secured to at least a portion of the head assembly body, the first expandable member configured to expand radially away from the head assembly body; a second main body assembly, the second main body assembly being an elongated body having a first end and a second end, at least a portion of the second end of the second main body assembly provided in and moveable through the second main body assembly opening of the head assembly body, the second main body assembly including: a second expandable member, the second expandable member secured to a portion of the second end of the second main body assembly, the second expandable member configured to expand radially away from the second main body assembly; and a second pressure port, the second pressure port configured to apply a negative pressure; and a magnetic implant assembly, the magnetic implant assembly securable to and unsecurable from the second end of the second main body assembly, the magnetic implant assembly including: a magnetic body, the magnetic body formed as a cylindrical body with a central axis, the magnetic body including: a front wall; a rear wall opposite to the front wall; and an exterior circumferential sidewall formed around the magnetic body, the exterior circumferential sidewall defining a thickness of the magnetic body, the exterior circumferential sidewall formed at a first radius from the central axis. ### Claim 2 (depends on 1) The endoscopic anastomosis system of claim 1, further comprising a securing assembly, the securing assembly secured to the second end of the second main body assembly, the securing assembly actuatable between a locked configuration and an unlocked configuration, the locked configuration being a configuration in which the magnetic implant assembly is secured to the securing assembly, the unlocked configuration being a configuration in which the magnetic implant assembly is not secured to the securing assembly. ### Claim 3 (depends on 2) The endoscopic anastomosis system of claim 2, wherein one or more of the following apply: at least a portion of the second end of the second main body assembly is configured to bend in a plurality of directions; and/or the second expandable member, the second pressure port, and the securing assembly are arranged in such a way that the second pressure port is provided between the second expandable member and the securing assembly; and/or at least a portion of the second end of the second main body assembly is configured to rotate relative to a central axis, the central axis being an axis formed by the at least one portion of the second end of the second main body assembly; and/or the magnetic body includes a hole formed through the magnetic body between the front wall and the rear wall; and/or the front wall of the magnetic body includes a circular shaped indentation centrally aligned with the central axis, the circular shaped indentation having a first exterior radius from the central axis, the first exterior radius of the circular shaped indentation being less than the first radius; and/or wherein the head assembly body further includes an image capturing assembly; and/or wherein the head assembly body further includes an insufflation port, the insufflation port configured to apply a positive pressure. ### Claim 4 (depends on 1) The endoscopic anastomosis system of claim 1, wherein the magnetic implant assembly further includes: one or more protruding portions, the one or more protruding portions formed on the front wall of the magnetic body. ### Claim 5 (depends on 4) The endoscopic anastomosis system of claim 4, wherein the one or more protruding portions include a first ring shaped protrusion formed on the front wall of the magnetic body, the first ring shaped protrusion centrally aligned with the central axis, the first ring shaped protrusion having a first exterior radius from the central axis and a first interior radius from the central axis, the first exterior radius of the first ring shaped protrusion being equal to or less than the first radius. ### Claim 6 (depends on 5) The endoscopic anastomosis system of claim 5, wherein the first exterior radius of the first ring shaped protrusion is less than the first radius. ### Claim 7 (depends on 5) The endoscopic anastomosis system of claim 5, wherein the first exterior radius of the first ring shaped protrusion is equal to the first radius; and wherein the magnetic implant assembly further includes an exterior ring shaped body, the exterior ring shaped body formed around and fixedly secured to the exterior circumferential sidewall of the magnetic body, at least a portion of the exterior ring shaped body adjacent to the front wall of the magnetic body, wherein at least a portion of the exterior ring shaped body is formed using a material other than a ferromagnetic or magnetic material. ### Claim 8 (depends on 5) The endoscopic anastomosis system of claim 5, wherein the one or more protruding portions further includes a second ring shaped protrusion formed on the first ring shaped protrusion, the second ring shaped protrusion centrally aligned with the central axis and the first ring shaped protrusion, the second ring shaped protrusion having a second exterior radius from the central axis and a second interior radius from the central axis, the second exterior radius of the second ring shaped protrusion being less than the first exterior radius. ### Claim 9 (depends on 1) The endoscopic anastomosis system of claim 1, wherein the front wall of the magnetic body includes a ring shaped indentation centrally aligned with the central axis, the ring shaped indentation having a first exterior radius from the central axis and a second exterior radius from the central axis, the first exterior radius of the ring shaped indentation being equal to the first radius, the second exterior radius of the ring shaped indentation being less than the first radius; and wherein the magnetic implant assembly further includes an exterior ring shaped body, the exterior ring shaped body formed around and fixedly secured to the exterior circumferential sidewall of the magnetic body, at least a portion of the exterior ring shaped body adjacent to the front wall of the magnetic body, wherein at least a portion of the exterior ring shaped body is formed using a material other than a ferromagnetic or magnetic material. ### Claim 10 An endoscopic anastomosis system, the endoscopic anastomosis system comprising: a first main body assembly, the first main body assembly being an elongated body having a first end and a second end, at least a portion of the second end of the first main body assembly controllable to bend in a plurality of directions; a head assembly, the head assembly having a first end and a second end, the head assembly including: a head assembly body, the head assembly body including: a first region, the first region having a first end, a second end, and a midsection between the first and second ends of the first region, the first end of the first region secured to the second end of the first main body assembly, the second end of the first region including: a first section, the first section secured to a first end of a second region of the head assembly; and a second section, the second section having a second main body assembly opening; and the second region, the second region having the first end and a second end, the second end of the second region including: a first pressure port, the first pressure port configured to apply a negative pressure; and a first expandable member, the first expandable member secured to at least a portion of the midsection of the first region of the head assembly body, the first expandable member configured to expand radially away from the first region of the head assembly body; a second main body assembly, the second main body assembly being an elongated body having a first end and a second end, at least a portion of the second end of the second main body assembly provided in and moveable through the second main body assembly opening of the second section of the first region of the head assembly body, the second main body assembly including: a second expandable member, the second expandable member secured to a portion of the second end of the second main body assembly, the second expandable member configured to expand radially away from the second main body assembly; and a second pressure port, the second pressure port configured to apply a negative pressure; a magnetic implant assembly, the magnetic implant assembly including: a magnetic body, the magnetic body formed as a cylindrical body with a central axis, the magnetic body including: a front wall; a rear wall opposite to the front wall; and an exterior circumferential sidewall formed around the magnetic body, the exterior circumferential sidewall defining a thickness of the magnetic body, the exterior circumferential sidewall formed at a first radius from the central axis; and a securing assembly, the securing assembly secured to the second end of the second main body assembly, the securing assembly actuatable between a locked configuration and an unlocked configuration, the locked configuration being a configuration in which the magnetic implant assembly is secured to the securing assembly, the unlocked configuration being a configuration in which the magnetic implant assembly is not secured to the securing assembly. ### Claim 11 (depends on 10) The endoscopic anastomosis system of claim 10, wherein at least one of the following apply: the second region of the head assembly body further includes an image capturing assembly; and/or the second region of the head assembly body further includes an insufflation port, the insufflation port configured to apply a positive pressure; and/or the first region of the head assembly body is cylindrical in shape; and/or the second region of the head assembly body is semi-cylindrical in shape; and/or the first and second sections of the first region of the head assembly body are semi-circular in shape; and/or at least a portion of the second end of the second main body assembly is configured to bend in a plurality of directions; and/or the second expandable member, the second pressure port, and the securing assembly are arranged in such a way that the second pressure port is provided between the second expandable member and the securing assembly; and/or at least a portion of the second end of the second main body assembly is configured to rotate relative to a central axis, the central axis being an axis formed by the at least one portion of the second end of the second main body assembly; and/or the magnetic body includes a hole formed through the magnetic body between the front wall and the rear wall; and/or the front wall of the magnetic body includes a circular shaped indentation centrally aligned with the central axis, the circular shaped indentation having a first exterior radius from the central axis, the first exterior radius of the circular shaped indentation being less than the first radius. ### Claim 12 (depends on 10) The endoscopic anastomosis system of claim 10, wherein the magnetic implant assembly further includes: one or more protruding portions, the one or more protruding portions formed on the front wall of the magnetic body. ### Claim 13 (depends on 12) The endoscopic anastomosis system of claim 12, wherein the one or more protruding portions include a first ring shaped protrusion formed on the front wall of the magnetic body, the first ring shaped protrusion centrally aligned with the central axis, the first ring shaped protrusion having a first exterior radius from the central axis and a first interior radius from the central axis, the first exterior radius of the first ring shaped protrusion being equal to or less than the first radius. ### Claim 14 (depends on 13) The endoscopic anastomosis system of claim 13, wherein the first exterior radius of the first ring shaped protrusion is less than the first radius. ### Claim 15 (depends on 13) The endoscopic anastomosis system of claim 13, wherein the first exterior radius of the first ring shaped protrusion is equal to the first radius; and wherein the magnetic implant assembly further includes an exterior ring shaped body, the exterior ring shaped body formed around and fixedly secured to the exterior circumferential sidewall of the magnetic body, at least a portion of the exterior ring shaped body adjacent to the front wall of the magnetic body, wherein at least a portion of the exterior ring shaped body is formed using a material other than a ferromagnetic or magnetic material. ### Claim 16 (depends on 13) The endoscopic anastomosis system of claim 13, wherein the one or more protruding portions further includes a second ring shaped protrusion formed on the first ring shaped protrusion, the second ring shaped protrusion centrally aligned with the central axis and the first ring shaped protrusion, the second ring shaped protrusion having a second exterior radius from the central axis and a second interior radius from the central axis, the second exterior radius of the second ring shaped protrusion being less than the first exterior radius. ### Claim 17 (depends on 10) The endoscopic anastomosis system of claim 10, wherein the front wall of the magnetic body includes a ring shaped indentation centrally aligned with the central axis, the ring shaped indentation having a first exterior radius from the central axis and a second exterior radius from the central axis, the first exterior radius of the ring shaped indentation being equal to the first radius, the second exterior radius of the ring shaped indentation being less than the first radius; and wherein the magnetic implant assembly further includes an exterior ring shaped body, the exterior ring shaped body formed around and fixedly secured to the exterior circumferential sidewall of the magnetic body, at least a portion of the exterior ring shaped body adjacent to the front wall of the magnetic body, wherein at least a portion of the exterior ring shaped body is formed using a material other than a ferromagnetic or magnetic material. ### Claim 18 An endoscopic anastomosis system, the endoscopic anastomosis system comprising: a first main body assembly, the first main body assembly being an elongated body having a first end and a second end, at least a portion of the second end of the first main body assembly controllable to bend in a plurality of directions; a head assembly, the head assembly having a first end and a second end, the head assembly including: a head assembly body, the head assembly body including: a first region, the first region having a first end, a second end, and a midsection between the first and second ends of the first region, the first end of the first region secured to the second end of the first main body assembly, the second end of the first region including: a first section, the first section secured to a first end of a second region of the head assembly; and a second section, the second section having a second main body assembly opening; and the second region, the second region having the first end and a second end, the second end of the second region including: a first pressure port, the first pressure port configured to apply a negative pressure; and a first expandable member, the first expandable member secured to at least a portion of the midsection of the first region of the head assembly body, the first expandable member configured to expand radially away from the first region of the head assembly body; a second main body assembly, the second main body assembly being an elongated body having a first end and a second end, at least a portion of the second end of the second main body assembly provided in and moveable through the second main body assembly opening of the second section of the first region of the head assembly body, the second main body assembly including: a second expandable member, the second expandable member secured to a portion of the second end of the second main body assembly, the second expandable member configured to expand radially away from the second main body assembly; and a second pressure port, the second pressure port configured to apply a negative pressure; and a securing assembly, the securing assembly secured to the second end of the second main body assembly, the securing assembly including a snare subassembly, the snare subassembly actuatable between a locked configuration and an unlocked configuration, the locked configuration being a configuration in which a cable loop formed by the snare subassembly is less than or equal to a first length, the unlocked configuration being a configuration in which a cable loop formed by the snare subassembly is greater than a first length. ### Claim 19 (depends on 18) The endoscopic anastomosis system of claim 18, further comprising: a magnetic implant assembly, the magnetic implant assembly configured to be secured to the securing assembly when the cable loop of the snare subassembly is provided around the magnetic implant assembly and the snare subassembly is actuated to the locked configuration, the magnetic implant assembly configured to be unsecured to the securing assembly when the snare subassembly is actuated to the unlocked configuration. ### Claim 20 (depends on 19) The endoscopic anastomosis system of claim 19, wherein the magnetic implant assembly includes: a magnetic body, the magnetic body formed as a cylindrical body with a central axis, the magnetic body including: a front wall; a rear wall opposite to the front wall; and an exterior circumferential sidewall formed around the magnetic body, the exterior circumferential sidewall defining a thickness of the magnetic body, the exterior circumferential sidewall formed at a first radius from the central axis. ### Claim 21 (depends on 18) The endoscopic anastomosis system of claim 18, wherein at least one of the following apply: the second region of the head assembly body further includes an image capturing assembly; and/or the second region of the head assembly body further includes an insufflation port, the insufflation port configured to apply a positive pressure; and/or the first region of the head assembly body is cylindrical in shape; and/or the second region of the head assembly body is semi-cylindrical in shape; and/or the first and second sections of the first region of the head assembly body are semi-circular in shape; and/or at least a portion of the second end of the second main body assembly is configured to bend in a plurality of directions; and/or the second expandable member, the second pressure port, and the securing assembly are arranged in such a way that the second pressure port is provided between the second expandable member and the securing assembly; and/or at least a portion of the second end of the second main body assembly is configured to rotate relative to a central axis, the central axis being an axis formed by the at least one portion of the second end of the second main body assembly. ### Claim 22 (depends on 20) The endoscopic anastomosis system of claim 20, wherein: the magnetic body includes a hole formed through the magnetic body between the front wall and the rear wall. ### Claim 23 (depends on 20) The endoscopic anastomosis system of claim 20, wherein the magnetic implant assembly further includes: one or more protruding portions, the one or more protruding portions formed on the front wall of the magnetic body. ### Claim 24 (depends on 23) The endoscopic anastomosis system of claim 23, wherein the one or more protruding portions include a first ring shaped protrusion formed on the front wall of the magnetic body, the first ring shaped protrusion centrally aligned with the central axis, the first ring shaped protrusion having a first exterior radius from the central axis and a first interior radius from the central axis, the first exterior radius of the first ring shaped protrusion being equal to or less than the first radius. ### Claim 25 (depends on 24) The endoscopic anastomosis system of claim 24, wherein the first exterior radius of the first ring shaped protrusion is less than the first radius. ### Claim 26 (depends on 24) The endoscopic anastomosis system of claim 24, wherein the first exterior radius of the first ring shaped protrusion is equal to the first radius; and wherein the magnetic implant assembly further includes an exterior ring shaped body, the exterior ring shaped body formed around and fixedly secured to the exterior circumferential sidewall of the magnetic body, at least a portion of the exterior ring shaped body adjacent to the front wall of the magnetic body, wherein at least a portion of the exterior ring shaped body is formed using a material other than a ferromagnetic or magnetic material. ### Claim 27 (depends on 24) The endoscopic anastomosis system of claim 24, wherein the one or more protruding portions further includes a second ring shaped protrusion formed on the first ring shaped protrusion, the second ring shaped protrusion centrally aligned with the central axis and the first ring shaped protrusion, the second ring shaped protrusion having a second exterior radius from the central axis and a second interior radius from the central axis, the second exterior radius of the second ring shaped protrusion being less than the first exterior radius. ### Claim 28 (depends on 20) The endoscopic anastomosis system of claim 20, wherein the front wall of the magnetic body includes a circular shaped indentation centrally aligned with the central axis, the circular shaped indentation having a first exterior radius from the central axis, the first exterior radius of the circular shaped indentation being less than the first radius. ### Claim 29 (depends on 20) The endoscopic anastomosis system of claim 20, wherein the front wall of the magnetic body includes a ring shaped indentation centrally aligned with the central axis, the ring shaped indentation having a first exterior radius from the central axis and a second exterior radius from the central axis, the first exterior radius of the ring shaped indentation being equal to the first radius, the second exterior radius of the ring shaped indentation being less than the first radius; and wherein the magnetic implant assembly further includes an exterior ring shaped body, the exterior ring shaped body formed around and fixedly secured to the exterior circumferential sidewall of the magnetic body, at least a portion of the exterior ring shaped body adjacent to the front wall of the magnetic body, wherein at least a portion of the exterior ring shaped body is formed using a material other than a ferromagnetic or magnetic material.