1. P09321 D ETAILED D ESIGN R EVIEW M ECHANICAL S YSTEMS Felix Feliz Matthew Jones Michael Boquard Rebecca Jaiven Justin Zagorski Shuaib Mansoori 1

2. O VERVIEW 1. Medicine dispenser 2. Purpose 3. Design 1. Features 4. Dispensing 5. Refilling 6. Transport 7. Maintenance 8. Manufacturing 1. BOM 2. Sheet Layout including all parts 9. Engineering Analysis 10. Issues 11. Appendix 1. 2-D 2. Engineering Analysis 2

3. INTRO – PROJECT DESCRIPTION o Produce a robust prototype that dispenses medication on a time-bases to patients in a secure and accountable environment. o Allow to dispense a week’s supply of up to 6 different pills for two patients accessed twice daily. o Reliable and compact electro-mechanical dispensing system that can be controlled by a common laptop. 3

4. INTRO – PROJECT DESCRIPTION 4 User inputs finger print information Laptop communicates information to the dispenser Dispenser produces medicine

5. M EDICINE D ISPENSER - L AYOUT Lid Cylinder Holder/ Latch Assy Support Rail Ramp (Collapsible) Empty Return Lid Leg (Collapsible)

6. D ISPENSING P ROCESS User Approaches the dispenser User places finger on finger print reader Correct nitinol latch is actuated and medicine falls with the use of gravity Medicine cylinder rolls down the dispensing ramp and passes optical sensors. User takes medicine Deposit empty medicine cylinder into return slot at the rear of the dispenser 6

7. D ISPENSING P ROCESS

9. R EFILLING P ROCESS Retrieve empty dispenser from user At pharmacy, unload all empty medicine cylinders from the return slot Turn the dispenser over, release legs and flip up ramp to expose nitinol latch assembly. Plug in the dispenser to the main pharmacy computer and scan finger print or pin Sort required dosage into cartridges Place individual cartridges into properly allocated spots with guidance of the software Unplug dispenser, close ramp and legs, and prepare for delivery. 9

10. R EFILLING P ROCESS Flip Ramp to gain access to cylinder slots

11. T RANSPORTATION *note: dispenser is turned upside down

12. T RANSPORTATION Collapsed Dispenser Cross-section View

13. M AINTENANCE For maintenance remove the 4 mounting screws located on the sides of the dispenser and lift the top. There is a notch in the front of the housing at the center which can be used to help lift the lid. 13

14. M ANUFACTURING : M ECHANICAL BOM

15. M ANUFACTURING : H OUSING S HEET M ETAL L AYOUT 15

16. M ANUFACTURING : A SSEMBLY ORDER Main housing Inner mounting rails for PCB Install PCB and nitinol latch assembly Mount Top Mount Empty return door Mount Extension/ Ramp Mount legs 16

17. E NGINEERING A NALYSIS 17

18. E NGINEERING A NALYSIS 18

19. E NGINEERING A NALYSIS 19

20. E NGINEERING A NALYSIS 20

21. I SSUES Ramp / Extension clearance Outside leg hinges 180 max Empty return lock Cylinder movement while upside down Empty return clearance Mounting location for sensors Mounting locations for ball & spring latches Edge deflection on 3’ drop Edge guards only protect the main housing 21

22. A PPENDIX 22 Force Calculations Total Weight= Aluminum+Pills+Cylinders+Nitinol+P CB Aluminum =85.9 in 3 = 8.41lb Pills=.5g*10*33=165g =.363lb Cylinder=10g *33 =.727lb Nitinol =15g *33 = 1.09lb PCB=.5kg *2 = 2.2lb Total Weight =12.79 lb +Fasteners Pressure on rails Pills+Cylinder+Nitinol+pcb Force on legs Force on corner drop Without rubber edge guards With rubber edge guards Pressure on PCB