# US 10,864,088 B2 · Hip cup alignment guide > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,864,088 B2 - Document ID: US10864088B2 - Status: Granted - Kind: B2 - Application number: 16/322,319 - Filed: 2017-08-02 - Published: 2019-05-30 - Granted: 2020-12-15 - Earliest claimed: 2016-08-02 - Assignees: Embody Orthopaedic Limited - Applicants: Embody Orthopaedic Limited - Inventors: Robert Michael Wozencroft - Web page: https://patentgrep.com/patent/US10864088B2 ## CPC - A61F 2/4609: {of acetabular cups} - A61F 2/34: Acetabular cups - A61B 2017/568: {produced with shape and dimensions specific for an individual patient} - A61F 2/4657: {Measuring instruments used for implanting artificial joints (for surgical instruments A61B90/06)} - A61F 2002/4687: {Mechanical guides for implantation instruments} - 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) - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract The present invention provides a cup positioning guide which has a mechanical link from a cup introducer connection distal to the hip socket, to one or more landmarks on the pelvis. It facilitates intra-operative checks and adjustments to be made to reamed hip socket depth, cup anteversion and cup rotation with the aid of a cup trial component. ## Claims ### Claim 1 A cup positioning guide comprising a proximal region and a distal region, said proximal region comprising a connection hub to connect to at last a first landmark anchor and said distal region comprising at last a connector for a cup introducer, said connection hub and said connector being linked by a mechanical linkage, wherein said connector for a cup introducer further comprises means to rotate a cup introducer, wherein said means to rotate a cup introducer is by way of a worm drive. ### Claim 2 (depends on 1) A cup positioning guide of claim 1, wherein said proximal region of said cup positioning guide further comprising at least a second landmark anchor, said second landmark anchor being positioned away from said connection hub and said second landmark anchor being connected to said mechanical linkage linking said connection hub and said connector. ### Claim 3 (depends on 2) A cup positioning guide of claim 2, wherein said second landmark anchor comprises an anchor for connecting to an ischium corner. ### Claim 4 (depends on 2) A cup positioning guide of claim 2, wherein said mechanical linkage comprises a main body linking said connection hub and said second landmark anchor. ### Claim 5 (depends on 4) A cup positioning guide of claim 4, wherein said mechanical linkage comprises an arm extending from said main body to the distal region, said arm comprising said connector for a cup introducer at the distal region. ### Claim 6 (depends on 1) A cup positioning guide of claim 1, wherein said connector at said distal region is arranged such that there is provided an inclination angle Y between an axis of said connector extending from said connector to said proximal region and an axis running through said connection hub. ### Claim 7 (depends on 6) A cup positioning guide of claim 6, wherein said inclination angle is fixed. ### Claim 8 (depends on 2) A cup positioning guide of claim 2, wherein said connector at said distal region is arranged such that there is provided an anteversion angle Z between an axis of said connector extending from said connector to said proximal region and an axis running through said second landmark anchor. ### Claim 9 (depends on 5) A cup positioning guide of claim 5, wherein said arm is immovable in respect of said main body. ### Claim 10 (depends on 5) A cup positioning guide of claim 5, wherein said arm is fixedly moveable in respect of said main body, wherein the main body comprises an arced section and said arm is fixedly moveable on said arced section in order to adjust an anteversion angle Z. ### Claim 11 A cup positioning guide of 1, wherein said connection hub is connectable to said first landmark anchor by at last one rod. ### Claim 12 (depends on 11) A cup positioning guide of claim 11, wherein said connection hub has means to fixedly adjust the location of the at last one rod in order to provide for a means of best fit of the cup positioning guide to the first landmark anchor. ### Claim 13 (depends on 1) A cup positioning guide of claim 1, wherein said connection hub comprises a multi-articulate joint connectable to said first landmark anchor which allows freedom to adjust the position of a second landmark anchor. ### Claim 14 (depends on 1) A cup positioning guide of claim 1, wherein the connector is configured to be positioned distal to A hip socket and wherein said first landmark anchor is configured to be positioned on a pelvis. ### Claim 15 (depends on 14) A cup positioning guide of claim 14, wherein said first landmark anchor is for positioning on an operative side ASIS of a pelvis and a second landmark anchor is for positioning on an ischium adjacent to a hip socket. ### Claim 16 (depends on 14) A cup positioning guide of claim 14, comprising mechanical anteversion adjustment with centre of rotation coincident with a hip socket centre so that the anteversion adjustment does not shift cup position. ### Claim 17 (depends on 14) A cup positioning guide of claim 14 having a multi-articulate joint between said first landmark anchor and said connection hub which allows freedom to position a second landmark anchor on an ischium adjacent to a hip socket whilst maintaining a constant angle between an anterior pelvic plane (APP) and the axis between ASIS and projected hip socket centre position. ### Claim 18 (depends on 15) A cup positioning guide of claim 15, wherein said mechanical linkage maintains a constant angle between an ASIS axis and a cup face, also known as the cup inclination angle.