Kinematic design of trans phalangeal prosthetic device with 1-DOF.

Trans-phalangeal amputation is the most common case in upper-limb amputation, which accounted for 78% of the total cases. However, the prosthetic device is uniquely built for each person which makes it unable to be mass manufactured, and hence the price of this device is very high. This paper aims to design the mechanism of a prosthetic device for trans-phalangeal amputation that is functional, having a good quality, but has an affordable price. It is expected that people with trans-phalangeal amputation, especially in Indonesia, can easily access the prosthetic device. In this study, the mechanism was designed using kinematic synthesis. The primary considerations during the designing process are functionality, ease of operation, user comfort, customizable, and low cost. A 1-DOF (degree of freedom) kinematic system was designed to make the prosthetic device easy to be operated by the user. This study successfully created a kinematic system for a trans-phalangeal prosthetic device which has 1-DOF. A 3D printing is planned to be used to fabricate the prosthetic. [ABSTRACT FROM AUTHOR]