US 11,938,043 B2
Unibody endoskeletal transtibial prosthetic devices and digital fabrication workflow
Joshua Pelz, San Diego, CA (US); Luca De Vivo, San Diego, CA (US); Falko Kuester, La Jolla, CA (US); and Herbert J. Barrack, La Mesa, CA (US)
Assigned to The Regents of the University of California, Oakland, CA (US)
Appl. No. 18/009,915
Filed by The Regents of the University of California, Oakland, CA (US)
PCT Filed Jan. 11, 2022, PCT No. PCT/US2022/011939
§ 371(c)(1), (2) Date Dec. 12, 2022,
PCT Pub. No. WO2022/169557, PCT Pub. Date Aug. 11, 2022.
Claims priority of provisional application 63/137,268, filed on Jan. 14, 2021.
Prior Publication US 2023/0233340 A1, Jul. 27, 2023
Int. Cl. A61F 2/60 (2006.01); A61F 2/50 (2006.01); A61F 2/66 (2006.01); A61F 2/80 (2006.01); B33Y 50/00 (2015.01); B33Y 80/00 (2015.01)
CPC A61F 2/60 (2013.01) [A61F 2/5046 (2013.01); A61F 2/6607 (2013.01); A61F 2/80 (2013.01); B33Y 50/00 (2014.12); B33Y 80/00 (2014.12); A61F 2002/505 (2013.01); A61F 2002/607 (2013.01); A61F 2002/6621 (2013.01); A61F 2002/6642 (2013.01); A61F 2002/6685 (2013.01)] 2 Claims
OG exemplary drawing
 
1. A patient specific workflow method for producing a unibody transtibial prosthetic device, the workflow comprising:
acquiring patient data via imaging and/or scanning;
constructing a three-dimensional (3D) model from the patient data;
translating the 3D model to a 3D printable design of a unibody transtibial prosthesis;
3D printing the unibody transtibial prosthesis;
wherein the acquiring patient data comprises imaging a contralateral limb and a residual limb;
wherein the imaging is conducted with a smart phone;
wherein the 3D printing prints a unitary socket, pylon and foot and ankle, the pylon has an open structure of interconnected elongated supports having open spaces therebetween and the foot has a split ankle, a split toe and a split heel; and
wherein the 3D printing is a multi-material printing process that forms regions of different stiffnesses in the unitary socket, pylon and foot and ankle.