# US 11,896,491 B2 · Expandable total disc replacement implant > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,896,491 B2 - Document ID: US11896491B2 - Status: Granted - Kind: B2 - Application number: 17/658,343 - Filed: 2022-04-07 - Published: 2023-04-20 - Granted: 2024-02-13 - Earliest claimed: 2021-10-19 - Applicants: Loubert S. Suddaby - Inventors: Loubert S. Suddaby - Web page: https://patentgrep.com/patent/US11896491B2 ## CPC - A61F 2/442: {Intervertebral or spinal discs, e.g. resilient (non-disc-shaped intervertebral inflatable pockets A61F2/441; non-disc-shaped intervertebral fusion implants A61F2/4455)} - A61F 2/441: {made of inflatable pockets or chambers filled with fluid, e.g. with hydrogel} - A61F 2/4455: {for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages (intervertebral discs A61F2/442)} - A61F 2/44: for the spine, e.g. vertebrae or spinal discs - A61F 2002/30069: {elastomeric} - A61F 2002/30522: {releasable, e.g. using a releasable ratchet} - A61F 2002/30523: {by means of meshing gear teeth} - A61F 2002/30545: {for adjusting a diameter} - A61F 2002/30556: {for adjusting thickness} - A61F 2002/30579: {with mechanically expandable devices, e.g. fixation devices} - A61F 2002/30583: {filled with hardenable fluid, e.g. curable in-situ} - A61F 2002/30601: {telescopic} - A61F 2002/443: {having two transversal endplates and at least one intermediate component} - 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 An expandable intervertebral total disc replacement implant, including an inferior component, including a first core including a first outer surface and a first inner surface, and a first arm telescopingly engaged with the first core, a superior component, including a second core including a second outer surface and a second inner surface, and a second arm telescopingly engaged with the second core, and an expansion mechanism connected to the first core, the second core, and at least one of the first arm and the second arm. ## Claims ### Claim 1 An expandable intervertebral total disc replacement implant, comprising: an inferior component, including: a first core comprising a first outer surface and a first inner surface; and a first arm telescopingly engaged with the first core; a superior component, including: a second core comprising a second outer surface and a second inner surface; and a second arm telescopingly engaged with the second core; and an expansion mechanism connected to the first core and the second core, and directly secured to at least one arm of the first arm and the second arm; wherein the expansion mechanism is an inflatable sac; wherein as the expandable intervertebral total disc replacement implant is expanded, the expansion mechanism: displaces the superior component in an axial direction with respect to the inferior component; and displaces the at least one arm radially outward with respect to its respective core. ### Claim 2 (depends on 1) The expandable intervertebral total disc replacement implant as recited in claim 1, wherein the inflatable sac is connected to the at least one arm at an outer perimeter of the inflatable sac. ### Claim 3 (depends on 1) The expandable intervertebral total disc replacement implant as recited in claim 1, wherein the inflatable sac is connected to the first arm and the second arm. ### Claim 4 (depends on 1) The expandable intervertebral total disc replacement implant as recited in claim 1, wherein the expansion mechanism is connected to the first inner surface and the second inner surface. ### Claim 5 (depends on 1) The expandable intervertebral total disc replacement implant as recited in claim 1, wherein the first core comprises a first radially extending aperture and the first arm is engaged with the first radially extending aperture. ### Claim 6 (depends on 1) The expandable intervertebral total disc replacement implant as recited in claim 1, wherein at least one of the first inner surface and the second inner surface comprises a recess, and the expansion mechanism is slidingly engaged with the recess. ### Claim 7 (depends on 1) The expandable intervertebral total disc replacement implant as recited in claim 1, wherein the first arm comprises: a first protrusion telescopingly engaged with the first core; a third outer surface; and a third inner surface, wherein in a fully collapsed state the third outer surface is aligned with the first outer surface to form a first continuous outer surface. ### Claim 8 (depends on 7) The expandable intervertebral total disc replacement implant as recited in claim 7, wherein the second arm comprises: a second protrusion telescopingly engaged with the second core; a fourth outer surface; and a fourth inner surface, wherein in the fully collapsed state the fourth outer surface is aligned with the second outer surface to form a second continuous outer surface. ### Claim 9 (depends on 1) The expandable intervertebral total disc replacement implant as recited in claim 1, wherein: the superior component is axially displaceable relative to the inferior component; the first arm is radially displaceable with respect to the first core; and the second arm is radially displaceable with respect to the second core. ### Claim 10 (depends on 1) The expandable intervertebral total disc replacement implant as recited in claim 1, wherein at least one of the inferior component and the superior component are pivotable with respect to the expansion mechanism. ### Claim 11 An expandable intervertebral total disc replacement implant, comprising: an inferior component, including a first core comprising a first outer surface and a first inner surface; a superior component, including a second core comprising a second outer surface and a second inner surface; an arm telescopingly engaged with at least one of the first core and the second core; and an inflatable sac connected to the first core, the second core, and the arm, wherein at least one of the first inner surface and the second inner surface comprises a recess, and the inflatable sac is pivotably engaged with the recess; wherein the inflatable sac is operatively arranged to displace: the superior component in an axial direction with respect to the inferior component; and the arm in a radial direction with respect to its respective core. ### Claim 12 (depends on 11) The expandable intervertebral total disc replacement implant as recited in claim 11, wherein the inflatable sac is slidably connected to the first inner surface and the second inner surface. ### Claim 13 (depends on 11) The expandable intervertebral total disc replacement implant as recited in claim 11, wherein the first core comprises an aperture extending in the radial direction and the arm is engaged with the aperture. ### Claim 14 (depends on 11) The expandable intervertebral total disc replacement implant as recited in claim 11, wherein at least one of the inferior component and the superior component are pivotable with respect to the inflatable sac. ### Claim 15 An expandable intervertebral total disc replacement implant, comprising: an inferior component, including a first core comprising a first outer surface and a first inner surface; a superior component, including a second core comprising a second outer surface and a second inner surface; an arm telescopingly engaged with at least one of the first core and the second core; and an expansion mechanism connected to the first core and the second core, and secured to the arm, wherein at least one of the inferior component and the superior component are pivotable with respect to the expansion mechanism; wherein to expand the expandable intervertebral total disc replacement implant, the expansion mechanism is operatively arranged to displace: the superior component in an axial direction with respect to the inferior component; and the arm in a radially outward direction with respect to its respective core.