# US 12,109,078 B2 · Medical device support system including rotational control mechanism > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,109,078 B2 - Document ID: US12109078B2 - Status: Granted - Kind: B2 - Application number: 17/551,332 - Filed: 2021-12-15 - Published: 2022-07-07 - Granted: 2024-10-08 - Earliest claimed: 2021-01-06 - Assignees: American Sterilizer Company - Applicants: American Sterilizer Company - Inventors: Michael Joseph Heser; Jerime Josef Pichler - Web page: https://patentgrep.com/patent/US12109078B2 ## CPC - A61B 90/50: Supports for surgical instruments, e.g. articulated arms - A61B 90/03: {Automatic limiting or abutting means, e.g. for safety} - A61B 90/35: Supports therefor - E05D 11/06: Devices for limiting the opening movement of hinges - E05F 3/20: in hinges - F21V 21/28: adjustable in more than one plane - A61B 2090/035: {preventing further rotation} - A61B 2090/508: {with releasable brake mechanisms} - A61G 12/004: {mounted on the ceiling} - E05Y 2999/00: Subject-matter not otherwise provided for in this subclass - F16D 49/08: shaped as an encircling band extending over approximately 360 degrees - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - E05D: HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS (pivotal connections in general F16C11/00) - E05F: DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING - F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR - A61G: TRANSPORT, PERSONAL CONVEYANCES OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS (appliances for aiding patients or disabled persons to walk A61H3/00); OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES (embalming corpses A01N1/00) - E05Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF - F16D: COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES ## Abstract A medical device support system including a shaft, an extension arm, and a free rotating ring. The shaft includes an elongated peripheral cavity that defines first and second contact faces at opposite peripheral ends. A hub of the extension arm is pivotably mounted for a range of at least 360 degrees rotation about a rotation axis of the shaft. The at least 360 degrees rotation range is based on a compound of a first rotation range and a second rotation range. The first rotation range is defined by a fixed stop of the hub configured to move between first and second contact faces of a radially outward protruding member of the free rotating ring. The second rotation range is defined by a radially inward protruding member of the free rotating ring configured to move between the first and second contact faces of the elongated peripheral cavity of the shaft. ## Claims ### Claim 1 A medical device support system, comprising: a shaft; an extension arm having a support for a medical device and a hub at its proximal end mounted to the shaft for pivotable movement about a rotation axis of the shaft; a free rotating ring that is rotatable about the rotation axis and is movable relative to the shaft and movable relative to the hub; wherein the shaft includes at least one elongated peripheral cavity that defines first and second contact faces at opposite peripheral ends of the cavity; wherein the hub is pivotably mounted for a range of at least 360° (360 degrees) rotation about the rotation axis, wherein the at least 360° (360 degrees) rotation range is based on a compound of a first rotation range and a second rotation range, wherein the first rotation range is defined by a fixed stop of the hub configured to move between first and second contact faces of a radially outward protruding member of the free rotating ring, wherein the second rotation range is defined by a radially inward protruding member of the free rotating ring configured to move between the first and second contact faces of the elongated peripheral cavity of the shaft. ### Claim 2 (depends on 1) The medical device support system of claim 1, wherein the free rotating ring is configured to prevent rotation of the hub about the rotation axis beyond the at least 360° (360 degrees) rotation range. ### Claim 3 (depends on 1) The medical device support system of claim 1, wherein the hub is pivotably mounted for at least 360° (360 degrees) rotation from a first stop to a second stop and vice versa, wherein the first stop limits counterclockwise rotation of the hub about the rotation axis and the second stop limits clockwise rotation of the hub about the rotation axis. ### Claim 4 (depends on 3) The medical device support system of claim 3, wherein the first stop includes the fixed stop of the hub in engagement with the first contact face of the radially outward protruding member of the free rotating ring, and the radially inward protruding member of the free rotating ring in engagement with the first contact face of the elongated peripheral cavity of the shaft. ### Claim 5 (depends on 3) The medical device support system of claim 3, wherein the second stop includes the fixed stop of the hub in engagement with the second contact face of the radially outward protruding member of the free rotating ring, and the radially inward protruding member of the free rotating ring in engagement with the second contact face of the elongated peripheral cavity of the shaft. ### Claim 6 (depends on 1) The medical device support system of claim 1, wherein the radially outward protruding member of the free rotating ring and the radially inward protruding member of the free rotating ring lie in the same plane and the plane is perpendicular to the rotation axis. ### Claim 7 (depends on 1) The medical device support system of claim 1, wherein the fixed stop of the hub and the radially inward protruding member of the free rotating ring lie in the same plane and the plane is perpendicular to the rotation axis. ### Claim 8 (depends on 1) The medical device support system of claim 1, wherein the radially outward protruding member of the free rotating ring includes a tab, and the first and second contact faces of the radially outward protruding member of the free rotating ring are on opposite peripheral sides of the tab. ### Claim 9 (depends on 8) The medical device support system of claim 8, wherein the free rotating ring includes a ring member and the tab is secured within a radial opening in the ring member. ### Claim 10 (depends on 1) The medical device support system of claim 1, wherein the radially inward protruding member of the free rotating ring has first and second contact faces on opposite sides thereof, and wherein the second rotation range is defined by movement of the radially inward protruding member between a location at which the first contact face of the radially inward protruding member engages the first contact face of the elongated peripheral cavity of the shaft and a location at which the second contact face of the radially inward protruding member engages the second contact face of the elongated peripheral cavity of the shaft. ### Claim 11 (depends on 1) The medical device support system of claim 1, wherein the free rotating ring includes a ring member, and the radially inward protruding member of the free rotating ring includes a fastener threaded into an opening in the ring member, and the fastener protrudes radially inward relative to an inner diameter of the ring member. ### Claim 12 (depends on 1) The medical device support system of claim 1, wherein the at least one elongated peripheral cavity includes a plurality of elongated peripheral cavities. ### Claim 13 (depends on 12) The medical device support system of claim 12, wherein the radially inward protruding member of the free rotating ring includes a plurality radially inward protruding members that move within the respective plurality of elongated peripheral cavities. ### Claim 14 (depends on 12) The medical device support system of claim 12, wherein the plurality of elongated peripheral cavities are evenly spaced about the rotation axis of the shaft. ### Claim 15 (depends on 1) The medical device support system of claim 1, wherein the shaft has an axial hollow and a radial aperture and wherein the free rotating ring is positioned to allow passage of electrical and communication lines through the axial hollow, through the free rotating ring, through the radial aperture, and into a longitudinally extending cavity in the extension arm. ### Claim 16 (depends on 15) The medical device support system of claim 15, wherein the hub of the extension arm includes upper and lower pivot bearings configured to pivotably engage the hub with the shaft, and a radial opening positioned axially between the upper and lower pivot bearings, and wherein the free rotating ring is positioned to allow passage of the electrical and communication lines between the upper and lower pivot bearings, through the radial opening of the hub, and into the longitudinally extending cavity in the extension arm. ### Claim 17 A medical device support system, comprising: a shaft; an extension arm having a support for a medical device and a hub at its proximal end mounted to the shaft for pivotable movement about a rotation axis of the shaft; a free rotating ring that is rotatable about the rotation axis and is movable relative to the shaft and movable relative to the hub; wherein the shaft includes at least one elongated peripheral cavity that defines first and second contact faces at opposite peripheral ends of the cavity; wherein the hub is pivotably mounted for a range of at least 360° (360 degrees) rotation about the rotation axis from a first stop to a second stop and vice versa, wherein the first stop limits counterclockwise rotation of the hub about the rotation axis and the second stop limits clockwise rotation of the hub about the rotation axis, wherein the first stop includes a radially inward protruding member of the free rotating ring in engagement with the first contact face of the elongated peripheral cavity of the shaft, and wherein the second stop includes the radially inward protruding member of the free rotating ring in engagement with the second contact face of the elongated peripheral cavity of the shaft. ### Claim 18 (depends on 17) The medical device support system of claim 17, wherein the hub includes a fixed stop movable between first and second contact faces of a radially outward protruding member of the free rotating ring. ### Claim 19 (depends on 18) The medical device support system of claim 18, wherein the first stop includes the fixed stop of the hub in engagement with the first contact face of the radially outward protruding member of the free rotating ring, and wherein the second stop includes the fixed stop of the hub in engagement with the second contact face of the radially outward protruding member of the free rotating ring. ### Claim 20 A method of rotating an extension arm about a shaft of a medical device support system, the extension arm having a support for a medical device and a hub at its proximal end mounted to the shaft for pivotable movement about a rotation axis of the shaft, wherein a free rotating ring is rotatable about the rotation axis and is movable relative to the shaft and movable relative to the hub, and wherein the shaft includes at least one elongated peripheral cavity that defines first and second contact faces at opposite peripheral ends of the cavity, the method comprising: rotating the hub over a range of at least 360° (360 degrees) about the rotation axis, wherein the at least 360° (360 degrees) rotation range is based on a compound of movement over a first rotation range and movement over a second rotation range, wherein movement over the first rotation range includes moving a fixed stop of the hub between first and second contact faces of a radially outward protruding member of the free rotating ring, and wherein movement over the second rotation range includes moving a radially inward protruding member of the free rotating ring between the first and second contact faces of the elongated peripheral cavity of the shaft.