# US 9,867,710 B2 · Modular humeral prosthesis > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,867,710 B2 - Document ID: US9867710B2 - Status: Granted - Kind: B2 - Application number: 14/896,309 - Filed: 2014-06-06 - Published: 2016-05-12 - Granted: 2018-01-16 - Earliest claimed: 2013-06-06 - Assignees: Limacorporate S.P.A. - Applicants: Limacorporate S.P.A. - Inventors: Paolo Dalla Pria; Michele Pressacco; Simone Ursella - Web page: https://patentgrep.com/patent/US9867710B2 ## CPC - A61F 2/4014: {Humeral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic humeral shafts} - A61F 2/4059: {Humeral shafts} - A61F 2002/30337: {Inverted concave conical connections, e.g. for opposing disconnection} - A61F 2002/30405: {made by screwing complementary threads machined on the parts themselves} - A61F 2002/30507: {using a threaded locking member, e.g. a locking screw or a set screw} - A61F 2002/30604: {modular} - A61F 2002/30607: {Kits of prosthetic parts to be assembled in various combinations for forming different prostheses} - A61F 2002/4022: {having a concave shape, e.g. hemispherical cups} - A61F 2002/4029: {Necks} - A61F 2002/4037: {Connections of heads to necks} - A61F 2002/4044: {Connections of necks to shafts} - A61F 2002/4051: {Connections of heads directly to shafts} - 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 modular humeral prosthesis suitable for implant in a humeral seating of a humerus comprises an articulation component, a distal joint element able to be inserted into said humeral seating along an insertion axis, and an adapter body provided with a support positionable in the humeral seating and that has a coupling seating to connect said articulation component and provided with a connection unit inserted into said support to connect said distal joint element to said adapter body in a releasable manner. The connection unit comprises a clamping element associated in a selectively releasable manner to the distal joint element and the support has a through coupling seating configured to receive and position said clamping element inside it, and also configured to allow the insertion and extraction of said distal joint element through said support without removing said support from the humeral seating. ## Claims ### Claim 1 Modular humeral prosthesis suitable for implant in a humeral seating of a humerus, comprising an articulation component, a distal joint element able to be inserted into said humeral seating along an insertion axis, and an adapter body provided with a support positionable in the humeral seating and that has a coupling seating to connect said articulation component and provided with a connection unit inserted into said connect said distal joint element to said adapter body in a releasable manner, wherein said connection unit comprises: a clamping element associated in a selectively releasable manner to the distal joint element, an anchoring element configured to clamp the clamping element against axial extraction movement in an axial direction toward the outside of the humeral seating, an attachment element associated with the clamping element and the distal joint element to clamp the distal joint element in an axial direction toward the inside of the humeral seating, wherein said support has a through coupling seating configured to receive and position said clamping element inside it, and also configured to allow the insertion and extraction of said distal joint element through said support without removing said support from the humeral seating; and wherein the clamping element has a truncated cone configuration, both internally and externally. ### Claim 2 (depends on 1) Humeral prosthesis as in claim 1, wherein the clamping element is configured to prevent axial extraction movement of the distal joint element toward the outside of the humeral seating. ### Claim 3 (depends on 1) Humeral prosthesis as in claim 1, wherein the clamping element cooperates with the through coupling seating to achieve a same-shape coupling defined at least in part by an inclined truncated cone, the clamping element and the through coupling seating further cooperating to prevent axial movement of the through coupling seating in a direction toward the outside of the humeral seating. ### Claim 4 (depends on 1) Humeral prosthesis as in claim 1, wherein the clamping element is configured to achieve a same-shape coupling with the distal joint element to clamp the distal joint element in the axial direction. ### Claim 5 (depends on 1) Humeral prosthesis as in claim 1, wherein the clamping element is coupled externally to the distal joint element. ### Claim 6 (depends on 1) Humeral prosthesis as in claim 1, wherein the clamping element comprises a hollow truncated cone element that has an external clamping surface shaped like a truncated cone with a section that reduces toward the inside of the humeral seating, an internal clamping cavity delimited by internal lateral walls shaped like a truncated cone inverse with respect to the external clamping surface, to receive a mating connection portion of the distal joint element. ### Claim 7 (depends on 1) Humeral prosthesis as in claim 1, wherein the clamping element is inserted between the distal joint element and the anchoring element. ### Claim 8 (depends on 1) Humeral prosthesis as in claim 1, wherein the attachment element is mounted on the clamping element and is attached to the distal joint element. ### Claim 9 (depends on 1) Humeral prosthesis as in claim 1, wherein the attachment element comprises a screw, provided with a shaped head, configured to abut against the clamping element, from which a threaded rod extends, configured to be inserted into the clamping element and able to be screwed into an attachment cavity of the distal joint element to clamp the distal joint element in the axial direction. ### Claim 10 (depends on 1) Humeral prosthesis as in claim 1, wherein the clamping element is configured to define an axial stopping abutment for the attachment element. ### Claim 11 Modular humeral prosthesis suitable for implant in a humeral seating of a humerus, comprising an articulation component, a distal joint element able to be inserted into said humeral seating along an insertion axis, and an adapter body provided with a support positionable in the humeral seating and that has a coupling seating to connect said articulation component and provided with a connection unit inserted into said support to connect said distal joint element to said adapter body in a releasable manner, wherein said connection unit comprises: a clamping element associated in a selectively releasable manner to the distal joint element, an anchoring element configured to clamp the clamping element against axial extraction movement in an axial direction toward the outside of the humeral seating, an attachment element associated with the clamping element and the distal joint element to clamp the distal joint element in an axial direction toward the inside of the humeral seating, wherein said support has a through coupling seating configured to receive and position said clamping element inside it, and also configured to allow the insertion and extraction of said distal joint element through said support without removing said support from the humeral seating; and wherein internally the clamping element has a cylindrical configuration and externally a truncated cone configuration. ### Claim 12 (depends on 11) Humeral prosthesis as in claim 11, wherein at least internally the clamping element has threaded connection means to cooperate with the distal joint element. ### Claim 13 Modular humeral prosthesis suitable for implant in a humeral seating of a humerus, comprising an articulation component, a distal joint element able to be inserted into said humeral seating along an insertion axis, and an adapter body provided with a support positionable in the humeral seating and that has a coupling seating to connect said articulation component and provided with a connection unit inserted into said support to connect said distal joint element to said adapter body in a releasable manner, wherein said connection unit comprises: a clamping element associated in a selectively releasable manner to the distal joint element, an anchoring element configured to clamp the clamping element against axial extraction movement in an axial direction toward the outside of the humeral seating, an attachment element associated with the clamping element and the distal joint element to clamp the distal joint element in an axial direction toward the inside of the humeral seating, wherein said support has a through coupling seating configured to receive and position said clamping element inside it, and also configured to allow the insertion and extraction of said distal joint element through said support without removing said support from the humeral seating; and wherein the clamping element has a cylindrical configuration both internally and externally. ### Claim 14 Modular humeral prosthesis suitable for implant in a humeral seating of a humerus, comprising an articulation component, a distal joint element able to be inserted into said humeral seating along an insertion axis, and an adapter body provided with a support positionable in the humeral seating and that has a coupling seating to connect said articulation component and provided with a connection unit inserted into said support to connect said distal joint element to said adapter body in a releasable manner, wherein said connection unit comprises: a clamping element associated in a selectively releasable manner to the distal joint element, an anchoring element configured to clamp the clamping element against axial extraction movement in an axial direction toward the outside of the humeral seating, an attachment element associated with the clamping element and the distal joint element to clamp the distal joint element in an axial direction toward the inside of the humeral seating, wherein said support has a through coupling seating configured to receive and position said clamping element inside it, and also configured to allow the insertion and extraction of said distal joint element through said support without removing said support from the humeral seating; and wherein the clamping element has a truncated cone configuration, both internally and externally; and wherein the anchoring element comprises an externally threaded annular body that has a threaded external anchoring surface and a shaped central aperture. ### Claim 15 Modular humeral prosthesis suitable for implant in a humeral seating of a humerus, comprising an articulation component, a distal joint element able to be inserted into said humeral seating along an insertion axis, and an adapter body provided with a support positionable in the humeral seating and that has a coupling seating to connect said articulation component and provided with a connection unit inserted into said support to connect said distal joint element to said adapter body in a releasable manner, wherein said connection unit comprises: a clamping element associated in a selectively releasable manner to the distal joint element, an anchoring element configured to clamp the clamping element against axial extraction movement in an axial direction toward the outside of the humeral seating, an attachment element associated with the clamping element and the distal joint element to clamp the distal joint element in an axial direction toward the inside of the humeral seating, wherein said support has a through coupling seating configured to receive and position said clamping element inside it, and also configured to allow the insertion and extraction of said distal joint element through said support without removing said support from the humeral seating; and wherein the clamping element has a truncated cone configuration, both internally and externally; and wherein the anchoring element comprises an elastically deformable ring. ### Claim 16 (depends on 15) Humeral prosthesis as in claim 15, wherein the elastically deformable ring comprises a Seeger ring.