Abstract: An ankle prosthesis comprising a tibial implant, a talar implant and an insert to articulate the implants. The top face of the tibial implant having an anchoring fin, and the bottom face is articulated with the top surface of the insert. The bottom face of the talar implant includes an anchor to the talar bone, and the top face is articulated with the bottom surface of the insert. The articulation surface being saddle-shaped and including a longitudinal central groove allowing the insert to move longitudinally and rotate transversely. The top face of the tibial implant includes, on its anterior edge, a shield covering the bottom anterior portion of the tibia, and the tibial face is inclined and forms an angle with the horizontal of between 15° and 45°. Passages are provided in the shield for bone screws passing through in an ascending manner and open on the inclined tibial face.
Type:
Grant
Filed:
September 28, 2018
Date of Patent:
May 3, 2022
Assignee:
BIOTECHNI
Inventors:
Lionel Calamel, Franck Olivera, Joseph-Guy Asencio, Marion Di Schino, Christian Leonardi
Abstract: An ankle prosthesis comprising a tibial implant, a talar implant and an insert to articulate the implants. The top face of the tibial implant having an anchoring fin, and the bottom face is articulated with the top surface of the insert. The bottom face of the talar implant includes an anchor to the talar bone, and the top face is articulated with the bottom surface of the insert. The articulation surface being saddle-shaped and including a longitudinal central groove allowing the insert to move longitudinally and rotate transversely. The top face of the tibial implant includes, on its anterior edge, a shield covering the bottom anterior portion of the tibia, and the tibial face is inclined and forms an angle with the horizontal of between 15° and 45°. Passages are provided in the shield for bone screws passing through in an ascending manner and open on the inclined tibial face.
Type:
Application
Filed:
September 28, 2018
Publication date:
October 22, 2020
Applicant:
BIOTECHNI
Inventors:
Lionel CALAMEL, Franck OLIVERA, Joseph-Guy ASENCIO, Marion DI SCHINO, Christian LEONARDI
Abstract: An acetabular implant cup insert for a joint prosthesis, the insert being of the type having a metal shell (1) and a polymer lining (14) lining the inside space (4) of the shell (1), a receptacle (18) for a prosthetic head being formed in the lining (14), the shell presenting on its inside space (4) elements for preventing the lining (14) being extracted from the shell (1) and elements for preventing the lining (14) turning in the shell (1), the insert being characterized in that the elements for preventing the lining being extracted include a stud (11) disposed on the end wall (10) of the shell (1) and presenting at least one groove (12) or lip. An acetabular implant including a cup and an insert of the above type. A joint prosthesis of the type including an acetabular implant of the above type and a prosthetic head.
Abstract: A locking mechanism (100) and method of fixation, such as the fixation of a fixation device (104) like a bone screw and of a rod (106) to the spine. The locking mechanism (100) includes a body (102), an insert (108, 308), a rod seat (110, 310) and a set screw. The body (102) includes a bottom portion (114) configured to receive the fixation device (104) and the insert (108, 308) but prevents the insert (108, 308) and fixation device (104) from passing therethrough once the insert (108, 308) and fixation device (104) are engaged. The body (102) further includes a side portion (120) configured to receive the rod (106). Between the rod (106) and the insert (108, 308) is a rod seat (110, 310).
Type:
Application
Filed:
July 26, 2007
Publication date:
June 17, 2010
Applicant:
Biotechni America Spine Group, Inc.
Inventors:
David A. Walsh, Carl Arthur Knobloch, Daniel R. Baker
Abstract: An acetabular implant cup insert for a joint prosthesis, the insert being of the type having a metal shell (1) and a polymer lining (14) lining the inside space (4) of the shell (1), a receptacle (18) for a prosthetic head being formed in the lining (14), the shell presenting on its inside space (4) elements for preventing the lining (14) being extracted from the shell (1) and elements for preventing the lining (14) turning in the shell (1), the insert being characterized in that the elements for preventing the lining being extracted include a stud (11) disposed on the end wall (10) of the shell (1) and presenting at least one groove (12) or lip. An acetabular implant including a cup and an insert of the above type. A joint prosthesis of the type including an acetabular implant of the above type and a prosthetic head.