# US 11,298,248 B2 · Orthopedic device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,298,248 B2 - Document ID: US11298248B2 - Status: Granted - Kind: B2 - Application number: 16/638,710 - Filed: 2018-07-30 - Published: 2020-11-19 - Granted: 2022-04-12 - Earliest claimed: 2017-09-06 - Assignees: Otto Bock Healthcare Products GmbH - Applicants: Otto Bock Healthcare Products GmbH - Inventors: Luis Sagmeister - Web page: https://patentgrep.com/patent/US11298248B2 ## CPC - A61F 2/54: Artificial arms or hands or parts thereof - A61F 2/68: Operating or control means - A61F 2/586: {Fingers} - A61F 2/60: Artificial legs or feet or parts thereof - A61F 5/01: Orthopaedic devices, e.g. long-term immobilising or pressure directing devices for treating broken or deformed bones such as splints, casts or braces - F16D 41/066: all members having the same size and only one of the two surfaces being cylindrical - H02K 49/108: {with an axial air gap} - A61F 2002/6845: {Clutches} - A61F 2002/6863: {magnetic} - A61F 2002/701: {operated by electrically controlled means, e.g. solenoids or torque motors} - F16D 7/00: Slip couplings, e.g. slipping on overload, for absorbing shock (combined with yielding shaft couplings F16D3/14; fluid slip couplings F16D31/00 - F16D35/00) - 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) - F16D: COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES - H02K: DYNAMO-ELECTRIC MACHINES (dynamo-electric relays H01H53/00; conversion of DC or AC input power into surge output power {H03K3/53}) ## Abstract An orthopedic device with an end effector and a driving device, which is configured to drive the end effector by transferring a torque from the driving device to the end effector, wherein the orthopedic device features an overload protection that is configured to only prevent a transmission of a torque from the end effector to the driving device up to a threshold torque in at least one direction, and the overload protection includes at least a first coupling element and a second coupling element, which can be rotated relative to one another and which are coupled magnetically. ## Claims ### Claim 1 An orthopedic device comprising: an end effector; a driving device which is configured to drive the end effector by transmitting a torque from the driving device to the end effector; an overload protection that is configured to only prevent a transmission of a torque from the end effector to the driving device up to a threshold torque in at least one direction, the overload protection including at least one first coupling element and a second coupling element, which can be rotated relative to one another and which are coupled magnetically, wherein the second coupling element includes a plurality of magnets, and wherein the device has two first coupling elements, between which the second coupling element is arranged. ### Claim 2 (depends on 1) The orthopedic device according to claim 1, wherein the magnets are detachably arranged in at least one of specially provided indentations and specially provided recesses on the second coupling element. ### Claim 3 (depends on 2) The orthopedic device according to claim 2, wherein the at least one of indentations and recesses are arranged to be equidistant across at least one section of a circumference. ### Claim 4 (depends on 1) The orthopedic device according claim 1, wherein at least one of the first coupling elements has a plurality of coupling regions, which are designed in the form of tabs that protrude radially inwards, wherein a quantity of the tabs corresponds to at least one of the number of the magnets and a number of the at least one of indentations and recesses. ### Claim 5 (depends on 1) The orthopedic device according to claim 1, wherein at least one first coupling element or the second coupling element is arranged on a housing and is torque-proof. ### Claim 6 (depends on 1) The orthopedic device according to claim 1, wherein the overload protection has a locking device that is configured to not effect the transfer of the torque from the driving device to the end effector and to prevent the transfer of the torque from the end effector to the driving device up until the point of the threshold torque. ### Claim 7 An orthopedic device comprising: an end effector; a driving device configured to transmit a torque to drive the end effector; an overload protection configured to prevent a transmission of a torque from the end effector to the driving device up to a threshold torque in at least one direction, the overload protection including at least one first coupling element and a second coupling element, the first and second coupling elements being rotatable relative to each other and being coupled magnetically, wherein the second coupling element includes a plurality of magnets, and wherein the device has two first coupling elements, the second coupling element being arranged between the first coupling elements. ### Claim 8 (depends on 7) The orthopedic device according to claim 7, wherein the magnets are detachably arranged in at least one of specially provided indentations and specially provided recesses on the second coupling element. ### Claim 9 (depends on 8) The orthopedic device according to claim 8, wherein the indentations and recesses are equidistant across at least one section of a circumference. ### Claim 10 (depends on 7) The orthopedic device according claim 7, wherein at least one of the first coupling elements has a plurality of coupling regions, which are designed in the form of tabs that protrude radially inwards, and the tabs correspond to at least one of the number of the magnets and a number of the indentations or recesses. ### Claim 11 (depends on 7) The orthopedic device according to claim 7, wherein the at least one first coupling element or the second coupling element is arranged on a housing and is torque-proof. ### Claim 12 (depends on 7) The orthopedic device according to claim 7, wherein the overload protection has a locking device that is configured to avoid transfer of the torque from the driving device to the end effector and to prevent the transfer of the torque from the end effector to the driving device up to the threshold torque.