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1. WO2022008755 - MEDIAL STABILIZED ORTHOPAEDIC KNEE PROSTHESIS

Publication Number WO/2022/008755
Publication Date 13.01.2022
International Application No. PCT/EP2021/069244
International Filing Date 10.07.2021
IPC
A61F 2/38 2006.1
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
FFILTERS 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
2Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
02Prostheses implantable into the body
30Joints
38for elbows or knees
A61F 2/30 2006.1
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
FFILTERS 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
2Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
02Prostheses implantable into the body
30Joints
Applicants
  • DEPUY IRELAND UNLIMITED COMPANY [IE]/[IE]
Inventors
  • HELDRETH, Mark A.
  • BENNETT, Travis D.
  • MANE, Amitkumar M.
  • WOGOMAN, Thomas E.
  • ROCK, Michael J.
Agents
  • PAWLYN, Anthony Neil
Priority Data
63/050,74410.07.2020US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) MEDIAL STABILIZED ORTHOPAEDIC KNEE PROSTHESIS
(FR) PROTHÈSE DE GENOU ORTHOPÉDIQUE MÉDIALE STABILISÉE
Abstract
(EN) An orthopaedic knee prosthesis (100) includes a tibial insert (104) and a femoral component (102) configured to articulate on the tibial insert. The tibial insert includes a lateral articular surface (122) and medial articular surface (124) that is asymmetrically shaped relative to the lateral articular surface. The medial articular surface is shaped to reduce anterior translation of a medial condyle of the femoral component, while the lateral articular surface is shaped to allow a lateral condyle of the femoral component to pivot, relative to the medial articular surface, along an arcuate articular path (806). Additionally, one or both condyles (112, 114) of the femoral component may include a femoral articular surface (110) having a curved femoral surface section defined by a continuously decreasing radius of curvature.
(FR) Une prothèse de genou orthopédique comprend un insert tibial et un élément fémoral conçu pour s'articuler sur l'insert tibial. L'insert tibial comprend une surface articulaire latérale et une surface articulaire médiale qui est formée de manière asymétrique par rapport à la surface articulaire latérale. La surface articulaire médiale est formée de sorte à réduire la translation antérieure d'un condyle médial de l'élément fémoral, tandis que la surface articulaire latérale est formée de sorte à permettre à un condyle latéral de l'élément fémoral de pivoter, par rapport à la surface articulaire médiale, le long d'un trajet articulaire arqué. De plus, un ou deux condyles de l'élément fémoral peuvent comprendre une surface articulaire fémorale ayant une section de surface fémorale incurvée définie par un rayon de courbure décroissant en continu.
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