# US 2019/0314028 A1 · Medical Device Including an Artificial Contractile Structure > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0314028 A1 - Document ID: US20190314028A1 - Status: Published application - Kind: A1 - Application number: 16/428,296 - Filed: 2019-05-31 - Published: 2019-10-17 - Earliest claimed: 2016-08-04 - Assignees: MyoPowers Medical Technologies France SAS - Applicants: MyoPowers Medical Technologies France SAS - Inventors: Marco Wieland; Claude Clement; Martin Horst - Web page: https://patentgrep.com/patent/US20190314028A1 ## CPC - A61B 17/12009: {Implements for ligaturing other than by clamps or clips, e.g. using a loop with a slip knot} - A61B 17/12013: {for use in minimally invasive surgery, e.g. endoscopic surgery} - A61B 17/1327: {Tensioning clamps} - A61F 2/0036: {implantable (A61F2/0018 takes precedence)} - A61F 5/005: {Gastric bands} - A61F 5/0059: {with wireless means} - A61B 17/08: Wound clamps {or clips, i.e. not or only partly penetrating the tissue (suture bridges A61B17/0466); Devices for bringing together the edges of a wound} - A61B 2017/00411: {actuated by application of energy from an energy source outside the body} - A61B 2017/00477: {Coupling (A61B2017/0046 takes precedence)} - A61B 2017/00827: {Treatment of gastro-esophageal reflux} - A61B 2017/00876: {magnetic} - A61F 2210/009: magnetic - A61F 2230/0013: Horseshoe-shaped, e.g. crescent-shaped, C-shaped, U-shaped - A61F 2250/0004: adjustable - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C) ## Abstract A medical device has an artificial contractile structure including at least one contractile element adapted to contract a hollow body organ in such a way that said contractile element is adapted to be in a resting position or in an activated position, the activated position being defined with the contractile element constricting the hollow body organ and the resting position being defined with the contractile element not constricting the hollow body organ. The medical device further includes a tensioning device adapted to apply a force so as to tighten the contractile element around the hollow body organ. The medical device further includes a means for eliminating a dead zone of the contractile element when the contractile element is attached around hollow organ with a circumference of the contractile element less than a maximum possible circumference. ## Claims ### Claim at position 1 1-29. (canceled) ### Claim 30 A medical device comprising: an artificial contractile structure comprising at least one contractile element adapted to contract a hollow body organ such that said contractile element is adapted to be in a resting position or in an activated position, the activated position being defined with said contractile element constricting the hollow body organ and the resting position being defined with said contractile element not constricting the hollow body organ, a tensioning device adapted to apply a force so as to tighten the contractile element around said hollow body organ, and a means for eliminating a dead zone of said contractile element when the contractile element is attached around said hollow organ with a circumference of the contractile element being less than a maximum possible circumference. ### Claim 31 (depends on 30) The medical device according to claim 30, wherein said means for eliminating a dead zone comprise a stiffener arranged to be disposed around at least part of said dead zone. ### Claim 32 (depends on 31) The medical device according to claim 31, wherein the stiffener comprises a plurality of lips arranged to engage the flexible strip and a security device comprising flaps arranged to secure the plurality of lips in position. ### Claim 33 (depends on 30) The medical device according to claim 30, wherein said means for eliminating a dead zone of said contractile element comprise a means for attaching the tensioning device to said contractile element, said means for attaching the tensioning device to said contractile element being adapted to attach at least a part of the tensioning device to the contractile element in an adjustable position. ### Claim 34 (depends on 33) The medical device according to claim 33, wherein the means for attaching the tensioning device to said contractile element comprise a first anchoring point for attaching a first component of the tensioning device to the contractile element, said first anchoring point being situated proximate to a closure adapted to form the contractile element into a closed loop, and a second anchoring point for attaching a further component of the tensioning device to the contractile element, wherein said second anchoring point is chosen from a plurality of second anchoring points situated along the contractile element at a plurality of distances from said first anchoring point. ### Claim 35 (depends on 30) The medical device according to claim 30, wherein said tensioning device is arranged to cause the contractile element to apply a substantially uniform occlusive pressure of at most 8 N/cm2, said pressure varying by at most 15% along a circumference of a contact area between the contractile element and the hollow body organ when the contractile element is in the activated position. ### Claim 36 (depends on 30) The medical device according to claim 30, wherein the contractile element further comprises: a flexible strip extending in a longitudinal direction; and a plurality of transversal reinforcement elements extending from a surface of the flexible strip. ### Claim 37 (depends on 30) The medical device according to claim 30, wherein the contractile element further comprises an elastic element arranged so as to tend to loosen the contractile element. ### Claim 38 (depends on 36) The medical device according to claim 36, wherein the tensioning device is adapted so as to cause the flexible strip to flex into a U-shaped cross-section upon application of said force, a bottom of said U-shape being arranged to apply said occlusive pressure. ### Claim 39 (depends on 36) The medical device according to claim 36, wherein the flexible strip comprises a plurality of openings, each opening being situated between two adjacent transversal reinforcement elements. ### Claim 40 (depends on 36) The medical device according to claim 36, wherein the tensioning device comprises a flexible transmission comprising a tensioning element arranged in a sheath, at least part of the sheath being anchored to the flexible strip at a first anchoring point, the tensioning element extending from said at least part of the sheath and being anchored to the flexible strip at a second anchoring point. ### Claim 41 (depends on 40) The medical device according to claim 40, wherein the tensioning element is a filament, a wire, a cable or a flat strip. ### Claim 42 (depends on 40) The medical device according to claim 40, wherein the tensioning element passes through at least some of the transversal reinforcement elements. ### Claim 43 (depends on 41) The medical device according to claim 41, wherein said tensioning device comprises a release element adapted to release said occlusive pressure in response to a tension applied to said release element, said release element being constituted by a second filament, a second wire, a second cable or a second flat strip. ### Claim 44 (depends on 43) The medical device according to claim 43, wherein the sheath comprises at least one coiled wire. ### Claim 45 (depends on 44) The medical device according to claim 44, wherein the sheath comprises an inner coiled wire coiled in a first direction, and an outer coiled wire surrounding the inner coiled wire and coiled in a second direction opposite to said first direction. ### Claim 46 (depends on 44) The medical device according to claim 44, wherein at least one coiled wire is stretched between the first anchoring point and the second anchoring point such that, in an unstressed state, adjacent coils of said at least one coiled wire are not in contact, so as to form an elastic element arranged so as to tend to loosen the contractile element. ### Claim 47 (depends on 40) The medical device according to claim 40, further comprising an actuator separated from the contractile element and arranged to apply a tensile force to said tensioning element, said tensioning element being attached to a connection element protruding from a housing of said actuator by at least one of crimping, laser welding, hooking, and detachable means. ### Claim 48 (depends on 30) The medical device according to claim 30, wherein the contractile element further comprises a closure for forming the contractile element into a closed loop around a hollow body organ, the closure preferably being situated at a first extremity of the flexible strip. ### Claim 49 (depends on 48) The medical device according to claim 48, wherein the closure is arranged so as to form the contractile element into a closed loop having one of a plurality of predetermined circumferences. ### Claim 50 (depends on 36) The medical device according to claim 36, wherein the closure is arranged to be closed at one of a plurality of predetermined positions along said flexible strip. ### Claim 51 (depends on 36) The medical device according to claim 36, wherein the closure comprises a plurality of lips arranged to engage the flexible strip and a security device arranged to secure the lips in position. ### Claim 52 (depends on 51) The medical device according to claim 51, wherein the security device comprises a plurality of mutually interlocking flaps. ### Claim 53 (depends on 30) The medical device according to claim 30, further comprising a magnetic latch adapted to open the contractile element in response to the application of a predetermined magnetic field.