US 12,239,553 B2
Prosthetic attachment system
Dadi Granz, Reykjavik (IS); Martin Lund Storup, Reykjavik (IS); Andrew Bache, Reykjavik (IS); Linda Ros Birgisdottir, Reykjavik (IS); Egill Sveinbjorn Egilsson, Reykjavik (IS); Lukas Kalemba, Reykjavik (IS); and Eelco Dolfsma, Reykjavik (IS)
Assigned to OSSUR ICELAND EHF, Reykjavik (IS)
Filed by OSSUR ICELAND EHF, Reykjavik (IS)
Filed on Mar. 10, 2023, as Appl. No. 18/181,924.
Application 18/181,924 is a continuation of application No. 17/092,895, filed on Nov. 9, 2020, granted, now 11,648,134.
Application 17/092,895 is a continuation of application No. 15/984,776, filed on May 21, 2018, granted, now 10,828,180, issued on Nov. 10, 2020.
Claims priority of provisional application 62/597,198, filed on Dec. 11, 2017.
Claims priority of provisional application 62/509,246, filed on May 22, 2017.
Prior Publication US 2023/0201011 A1, Jun. 29, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61F 2/78 (2006.01); A61F 2/60 (2006.01); A61F 2/66 (2006.01); A61F 2/76 (2006.01); A61F 2/80 (2006.01); F16B 21/16 (2006.01); A61F 2/50 (2006.01); A61F 2/68 (2006.01)
CPC A61F 2/7812 (2013.01) [A61F 2/60 (2013.01); A61F 2/66 (2013.01); A61F 2/76 (2013.01); A61F 2/80 (2013.01); F16B 21/165 (2013.01); A61F 2002/5069 (2013.01); A61F 2002/5072 (2013.01); A61F 2002/5075 (2013.01); A61F 2002/5087 (2013.01); A61F 2002/5092 (2013.01); A61F 2002/607 (2013.01); A61F 2002/6854 (2013.01); A61F 2002/7837 (2013.01); A61F 2002/7875 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A prosthetic socket system comprising:
a prosthetic socket arranged to receive a residual limb and defining a distal end, a proximal end, and an axis extending between the distal and proximal ends;
a prosthetic liner adapted to provide an interface between the residual limb and the prosthetic socket, the prosthetic liner defining a closed distal end and an open proximal end; and
a prosthetic attachment system including:
an insert arranged for connection to the closed distal end of the prosthetic liner, the insert defining a circumferential locking groove;
an attachment unit arranged for connection to the distal end of the prosthetic socket, the attachment unit comprising a body defining a central opening for selectively receiving the insert and carrying at least one locking element located circumferentially about the axis and radially repositionable relative to the axis; and
a release mechanism slidably repositionable on an outer surface of the body to move the prosthetic attachment system between a locked configuration in which the at least one locking element is radially repositioned to engage the circumferential locking groove and lock the insert in the central opening of the body and an unlocked configuration in which the insert is released from the central opening;
wherein the attachment unit includes a stop member arranged such that when the prosthetic attachment system is in an unlocked configuration an outer surface of the stop member engages the at least one locking element;
wherein the body includes at least one resilient member arranged to bias the stop member upwardly within the central opening.