US 12,354,737 B2
Method for determining a model of an extremity, computer-readable storage medium and system
Felix Gundlack, Munich (DE); Max Thalmeier, Munich (DE); and Khoi Lam, Munich (DE)
Assigned to Ottobock SE & Co. KGaA, Duderstadt (DE)
Appl. No. 17/424,564
Filed by Ottobock SE & Co. KGaA, Duderstadt (DE)
PCT Filed Jan. 8, 2020, PCT No. PCT/EP2020/050258
§ 371(c)(1), (2) Date Jul. 21, 2021,
PCT Pub. No. WO2020/151944, PCT Pub. Date Jul. 30, 2020.
Claims priority of application No. 10 2019 101 370.4 (DE), filed on Jan. 21, 2019.
Prior Publication US 2022/0076817 A1, Mar. 10, 2022
Int. Cl. G16H 40/63 (2018.01); G16H 30/20 (2018.01)
CPC G16H 40/63 (2018.01) [G16H 30/20 (2018.01)] 9 Claims
OG exemplary drawing
 
1. A method for determining a model of an extremity for providing an orthosis or prosthesis for that extremity, having the following steps:
a) displaying at least one option for data input by a user in the form of a patient questionnaire;
b) providing a data input by a user;
c) determining at least one patient-specific input parameter on the basis of the data input;
d) accessing an anatomical database storing a plurality of anatomical data sets, which anatomical data sets are associated with example cases of anatomical values of different patients;
e) determining reference dimensions of a raw model of the extremity for which the orthosis or prosthesis is to be generated with the use of the anatomical data sets and the determined at least one patient-specific input parameter;
f) ascertaining at least one statistically-based characteristic parameter from the anatomical database using the determined at least one patient-specific input parameter as a reference;
g) generating the raw model of the extremity using the ascertained at least one statistically-based characteristic parameter;
h) incorporating statistically ascertainable relationships of anatomical dimensions into a configuration of the raw model;
i) ascertaining a measurement parameter of the raw model, the measurement parameter representing a measurement of a distance between two points on the raw model, or a volume, an area, or a contour in the raw model;
j) displaying the raw model and the measurement parameter;
k) receiving an adjustment of the measurement parameter;
l) modifying the raw model on the basis of the ascertained measurement parameter;
m) iteratively performing steps j) through l) to further adjust the measurement parameter and modify the raw model on the basis of the further adjusted measurement parameter until a stopping condition is met to generate an individualized model of the orthosis or prosthesis; and
n) generating and transmitting instructions for a 3D-printing system or a milling system of a production plant, the instructions causing the 3D-printing system to additively manufacture, or causing the milling system to subtractively manufacture, a shape corresponding to the individual model to create the orthosis or prosthesis from the individualized model.