Medical Device Innovation: Translating Ideas into Reality
Pilot Production Total Knee Arthroplasty ICAM-3D, Chennai
Manufacture and test one sample of the device in lab. Then go for pilot production, preferably with industry partner, to establish GMP.

1. Create production drawings with material specs, tolerances and finish.

2. Select appropriate manufacturing processes and equipment.

3. Manufacture and assemble the device; fine-tune the process.

4. Document Good Manufacturing Practice, including quality control.

5. Partner with industry to produce a batch for bio-mechanical testing.

Total Knee Arthroplasty Prosthesis currently serves as a solution for osteoarthritis. Imported prosthesis when used in Indian patients causes abnormalities as the anatomical difference in the knee size. A modular design will help in fine adjustments of dimensions of individual components.

Development team includes Ahilan, IIT Bombay and Dr. Vijay Shetty, Hiranandani Hospital, Mumbai.

Current status: The device has been manufactured with the static evaluation in FEA presently completed. Dynamic testing in FEA is underway.

Patent Filed: A.Ahilan, R. Ghyar, V. Shetty, B. Ravi, " Modular Total Knee Arthoplasty Prosthesis".

International Conference on Additive Manufacturing and 3D Printing (ICAM-3D), was organized by ESCI-Institution of Engineers (India), DST and Veltech, in Chennai on 5-7 Feb 2015, and inaugurated by Dr. R. Chidambaram. Prof. B. Ravi gave an invited talk on "Rapid Design, Prototyping and Manufacture of Medical Devices" and also chaired a session on Medical Applications
A key conclusion was that low-cost 3D-printed medical models reconstructed from CT scans can now be widely used for surgery planning, as well as patient education and medical training.