3D printing orthosis helps hand sputum recover some functions
Release date: 2016-03-01 So far we have seen a lot of stories about 3D printed prostheses. This time, Tiangong News Agency will introduce you to a 3D printing orthosis made by biomedical engineering student Eliza Wrobel for a 33-year-old patient. The patient was paralyzed by an extremity because of an accident. The purpose of this orthosis is to help guide or assist the patient's limb movement. Source: Tiangongshe Canned Food,Canned Pumpkin,Canning Tomatoes,Canned Goods ZHONGSHAN G.H.L. TRADING CO., LTD. , https://www.ghltrade.com
 
As a student at the School of Mechanical Engineering at the Wroclaw Technical University in Poland, Eliza completed the project under the direction of the school Bogdan Dybala. From the outset, Eliza's goal was to create a orthosis that would allow patients to do something, such as playing his favorite sport, table tennis, or being able to grab something, even grab a lightweight one. Dumbbell bench. To achieve these goals, Eliza had to use some reverse engineering techniques, such as making a mold and mold for the patient's right hand and then performing a 3D scan at the university.
 
When the 3D model was completed, Eliza began designing various solutions in the CAD software. The challenge she faced was how to make the design closely match the patient's hand and give her fingers a good support. Eventually she designed two joints for the thumb part of the orthosis, while the other fingers designed three joints and connected all the parts together with a complex lever system to form a lightweight and durable orthosis. The patient can easily grasp the grip and rest the hand.
 
According to reports, this design contains a total of 70 3D printing parts. Eliza then printed it out using a ZMorph 2.0 S 3D printer. The printer is a single extruder with 1.75 mm ABS wire. To connect the various parts of the orthosis, Eliza used many small 3D print pins. Thanks to the printing accuracy of the ZMorph 3D printer, this orthosis is all 3D printed except for a nylon strap that is attached to the hand.
Now the patient has been able to use the prototype provided by Eliza to perform some limited functions and let the hands do some modest activities. In fact, Eliza can also use this prototype to make more orthoses for those who really need it.
 