1. COMPANY CONFIDENTIAL Design Review Meeting May 16, 2007 ORBITAL THERAPY, LLC

2. COMPANY CONFIDENTIAL AGENDA  Organization  MammoKnife Project  ClearVue Project  Discussion Points  Physics Review

3. COMPANY CONFIDENTIAL Garage days are over….

4. COMPANY CONFIDENTIAL 8 Alfred Circle, Bedford MA

5. COMPANY CONFIDENTIAL Recent Additions Natalya Koshnitsky – Regulatory & Marketing Chas Burr – Regulatory Affairs (Quality Systems) Michael Barenboym – Mechanical Engineering/ Industrial Design

6. COMPANY CONFIDENTIAL AGENDA  Organization  MammoKnife Project  ClearVue Project  Discussion Points  Physics Review

7. COMPANY CONFIDENTIAL Update Linear Accelerator LOI received from Siemens Mevex (Ottawa) interested in working with us Multi-Leaf Collimator Radionics MLC not ideal (old technology, wrong geometry) Topslane coming for a visit on Monday Buy vs. Make decision to be made this Quarter Shielding Experiment Design completed Fabrication under way Experiment scheduled for June at NEVOG (Waltham)

8. COMPANY CONFIDENTIAL Design Selected MammoKnife TM

9. COMPANY CONFIDENTIAL PRODUCT MammoKnife TM

10. COMPANY CONFIDENTIAL AGENDA  Organization  MammoKnife Project  ClearVue Project  Discussion Points  Physics Review

11. COMPANY CONFIDENTIAL MARKET Emergence of Prone-Based RT Table Tops

12. COMPANY CONFIDENTIAL CLEAR-VUE

13. CLEAR-VUE Ergonomic Design Table

14. COMPANY CONFIDENTIAL AGENDA  Organization  MammoKnife Project  ClearVue Project  Discussion Points  Physics Review

15. COMPANY CONFIDENTIAL Field Size Maximum Field Size Y = ? X = ?

16. COMPANY CONFIDENTIAL MLC Questions Leaf resolution at isocenter? Leaf material W vs. ??? Overtravel – how much? Desired Penumbra?

17. COMPANY CONFIDENTIAL Energy 4MV vs. 6MV

18. COMPANY CONFIDENTIAL AGENDA  Organization  MammoKnife Project  ClearVue Project  Discussion Points  Physics Review