Medical Device Innovation: Translating Ideas into Reality
Engineering Analysis Biopsy Gun ICAM-3D, Chennai
Simulate the device under normal as well as extreme operating loads and conditions, to check its performance and safety.

1. Create a realistic Finite Element Model of the device.

2. Apply the necessary boundary conditions (constraints and loads).

3. Take special care of meshes, interfaces, and friction coefficients.

4. Verify the model under simple loads first, compare with manual calculations.

5. Validate the results with physical experiments (say, using UTM).

Variable Length Multi-Use Biopsy Gun is used to take a small sample of tissue without infecting the intervening tissue, with the additional advantage of adjustable length of firing, besides being easier to operate.

Development team includes Shivam Mittal,IIT Bombay and Dr. Manish Agarwal, Hinduja Hospital.

Current status: The device has been prototyped and is under mechanical testing.

Patent filed: S. Mittal, R. Ghyar, M. Agarwal, B. Ravi, S. S. Kulkarni, "Variable Length Multi-Use Biopsy Gun".

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.