Figure III-1. Initial design of electronic goniometer measuring system

Figure III-1. Placement of gyroscope sensors on finger for PIP joint angle measurement.

Figure III-2. Demonstration of sensor mounting rings on finger 

Figure III-3. Sensor verification testing platform. One sensor is placed on each plate. 

Figure III-4. Sensor mounting ring. The sensor will be installed between two loops of the ring.

Figure III-5 Silicon cushion, used as biocompatible material between the finger ring and phalangeal skin. The silicon cushion is a silicon band is 7cm long, and 1.5cm wide. Its length and width can be customized based on the requirement of the patient.

Figure III-6 a, b, c, and d.  Prototype presentation. Electric goniometer unit with finger ring from different angles.

Figure III-7 a and b. Prototype presentation. Silicon cushion wraping proximal phalangeal.

Figure III-8 a, b, and c.  Prototype presentation. An electronic goniometer wraps the silicon cushion on the proximal phalangeal.

Figure III-9 a, b, c, and d.  Prototype presentation. Electronic goniometers wrap the silicon cushion on the proximal phalangeal and medial phalangeal from different angles.