US 11,944,546 B2
Wholly patient-specific orthopedic implants and implanting apparatuses, system and manufacture thereof
Chedtha Puncreobutr, Bangkok (TH); Boonrat Lohwongwatana, Bangkok (TH); Suriya Luenam, Bangkok (TH); Kantapat Phakdeewisetkul, Bangkok (TH); Nonphan Onsiri, Bangkok (TH); Thanawat Phetrattanarangsi, Bangkok (TH); and Techawit Hirisatja, Bangkok (TH)
Assigned to CHULALONGKORN UNIVERSITY, (TH)
Appl. No. 16/637,573
Filed by Chulalongkorn University, Bangkok (TH)
PCT Filed Aug. 8, 2018, PCT No. PCT/TH2018/000035
§ 371(c)(1), (2) Date Feb. 7, 2020,
PCT Pub. No. WO2019/035777, PCT Pub. Date Feb. 21, 2019.
Claims priority of provisional application 62/542,914, filed on Aug. 9, 2017.
Prior Publication US 2020/0253740 A1, Aug. 13, 2020
Int. Cl. G06T 19/20 (2011.01); A61F 2/30 (2006.01); A61F 2/42 (2006.01); A61B 34/10 (2016.01)
CPC A61F 2/30942 (2013.01) [A61F 2/4241 (2013.01); A61F 2/4261 (2013.01); A61B 2034/102 (2016.02); A61B 2034/105 (2016.02); A61B 2034/108 (2016.02); A61F 2002/30624 (2013.01); A61F 2002/30784 (2013.01); A61F 2002/3092 (2013.01); A61F 2002/30948 (2013.01); A61F 2002/4243 (2013.01); A61F 2002/4264 (2013.01); A61F 2002/4266 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A computer-based method of designing a customized patient-specific implant of a small-joint bone, wherein said implant comprises a head and a stem, wherein said small joint bone comprises a shaft and an intramedullary cavity, and wherein said method comprises steps of—
obtaining a three-dimensional anatomic information of a patient in a form of images, individual points (point-cloud data), surfaces, or solid bodies;
measuring morphological parameters of the patient's bone;
identifying anatomic landmarks;
generating, based on the morphological parameters and anatomic landmarks, a three-dimensional model of the head, wherein said three-dimensional model of the head comprises a contour and a solid body; and
generating, based on the morphological parameters and anatomic landmarks, a three-dimensional model of the stem, wherein said three-dimensional model of the stem comprises an orthopedically compatible object for insertion into the intramedullary cavity,
wherein said small joint bone is selectable from a group consisting of elbow, shoulder, wrist, hand, finger, ankle, foot, and toe bones.