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1. WO2022003446 - INJECTION MOLDED PROSTHETIC COMPONENT WITH MACHINED BONE-CONTACTING SURFACES

Publication Number WO/2022/003446
Publication Date 06.01.2022
International Application No. PCT/IB2021/054799
International Filing Date 01.06.2021
IPC
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
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
B29C 45/00 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
45Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
B29K 71/00 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D103
71Use of polyethers as moulding material
Applicants
  • DEPUY SYNTHES PRODUCTS, INC. [US]/[US]
Inventors
  • KASINATH, Rajendra K.
  • RYBOLT, Jeffrey A.
  • SMITH, David A.B.
Agents
  • SHIRTZ, Joseph F.
  • KELSEY, Jeffrey TG
Priority Data
16/917,07530.06.2020US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) INJECTION MOLDED PROSTHETIC COMPONENT WITH MACHINED BONE-CONTACTING SURFACES
(FR) COMPOSANT PROTHÉTIQUE MOULÉ PAR INJECTION COMPORTANT DES SURFACES USINÉES EN CONTACT AVEC L’OS
Abstract
(EN) A method for manufacturing a prosthetic component (10, 100, 200) include injection molding a prosthetic component with a polymeric material. The prosthetic component includes a final surface positioned on one side and multiple coring features (32, 138, 222) positioned on an opposite side. The coring features may include multiple ribs (34, 36, 38, 40, 42, 140, 224 ) and slots (44, 46, 48, 50, 142, 226). The method further includes machining the prosthetic component to remove the coring features and form a final surface on the opposite side. The prosthetic component may be a femoral component for a prosthetic knee joint.
(FR) La présente invention concerne un procédé de fabrication d’un composant prothétique (10, 100, 200) qui comprend le moulage par injection d’un composant prothétique avec un matériau polymère. Le composant prothétique comprend une surface finale positionnée sur un côté et des éléments de striage multiples (32, 138, 222) positionnées sur un côté opposé. Les éléments de striage peuvent comprendre des nervures (34, 36, 38, 40, 42, 140, 224) et des fentes (44,46,48, 50, 142, 226) multiples. Le procédé comprend en outre l’usinage du composant prothétique pour retirer les éléments de striage et former une surface finale sur le côté opposé. Le composant prothétique peut être un composant fémoral pour une articulation de genou prothétique.
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