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Trocascope XC2000 ver. 2.0

Trocascope XC2000 ver. 2.0. Brought to you by: Smooth Operation Chris Kitt, Brenda Marcum, Jacob Oliver, Michael Roth, and Andrew Yuan. Laparoscopy Background. Minimally invasive abdominal surgery Multiple ports for tools – separate one for laparoscope. Current Laparoscopic Process.

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Trocascope XC2000 ver. 2.0

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  1. Trocascope XC2000 ver. 2.0 Brought to you by: Smooth Operation Chris Kitt, Brenda Marcum, Jacob Oliver, Michael Roth, and Andrew Yuan

  2. Laparoscopy Background • Minimally invasive abdominal surgery • Multiple ports for tools – separate one for laparoscope Current Laparoscopic Process

  3. Trocascope XC2000 ver. 2.0 • Eliminate one port by incorporating the camera onto the tool port • More convenient for surgical team - fewer hands required and viewable screen • Less traumatic for patient

  4. Project Goals and Objectives • Combine current laparoscope with current surgical instrument to eliminate one port • Minimize camera module size, while maintaining speed and resolution • High resolution image displayed on LCD panel • Minimal wires – hopefully completely wireless and battery powered • Incorporate data storage device for later viewing

  5. Low Objectives • 10 mm max diameter for camera module • 640x480 resolution • 30 fps • LCD screen • LED lighting with imager • All wired connections • AC power

  6. Mid Level Objectives • Battery powered – supplement with AC (2-2.5 hr run time) • 6 mm max diameter of camera module • Higher resolution • Wireless • Stream video data to external monitor • Screen shot capability • SD onboard storage • Enable touch screen features

  7. High Level Objectives • Multi-camera interface – split screen • Motorized camera module • Time display • Audio features • Wireless transmission to external monitor • Foot pedal • 4 mm maximum diameter of camera module • Wireless storage to external device

  8. Microcontroller w/ISI and LCD controller Camera (0V7690) VGA LCD Display LED(s) SD Card Block Diagram Rechargeable Battery Battery Charger Controller Top View

  9. Microcontroller ATMEL AT32AP7000 32bit AVR

  10. Microcontroller w/ISI and LCD controller Camera (0V7690) Camera • Connected via SCCB (I2C) and 8 parallel data lines • Camera takes 640x480 @ 30fps and sends it to the Image sensor interface on the microcontroller. • Microcontroller controls imager via SCCB connection.

  11. Microcontroller w/ISI and LCD controller LED(s) LED(s) • Connected via GPIO, possibly buffered with MOSFET or BJT to supply additional power • Each LED is connected through a buffer to a general I/O pin on the Microcontroller. • Allows touch screen to control LED through microcontroller, ideal for saving power and adjustable brightness. • LED will be selected for maximum efficiency and brightness. Don’t want to burn patient and want lots of illumination.

  12. Microcontroller w/ISI and LCD controller VGA LCD Display LCD • Connected via Microcontroller LCD interface. • Microcontroller takes data from imager and displays it on the LCD in VGA format. • Microcontroller takes button presses from LCD and performs desired operations, ie toggling LEDs, screenshots, etc • Utilizes RGB parallel input with 18 bits of color • VGA standards (480x640 @ 30 fps)

  13. Microcontroller w/ISI and LCD controller SD Card External Storage • SD Card viable option for video storage and retrieval • Uses standard SPI interface to communicate • Uses FAT32 storage system • SD interface built into processor • Easy to find documentation on SD interface

  14. Division of Labor

  15. Timeline

  16. Risks/Concerns • Microprocessor Options • BGA vs. Quad Flatpack • Smaller/less features vs. timing issues • Other alternatives available • Long BGA layout turn-around time • Unfamiliar Technology • PCB layout • Eval. Board coding vs. prelim. Demo board coding

  17. Alternative #1 Top View LCD controller (Epson S1D13513) Camera (0V7690) Microcontroller w/ISI (OV530-B49) VGA LCD Display LED(s) SD Card

  18. Alternative #2 Top View Image Sensor Controller (Atmel 32-bit Image Sensor interface) Microcontroller W/LCD controller (NXP LPC2158 ARM7) VGA LCD Display Camera (0V7690) SD Card LED(s)

  19. Alternative #3 Top View Image Sensor Controller (Atmel 32-bit Image Sensor interface) LCD controller (Epson S1D13513) Microcontroller Camera (0V7690) VGA LCD Display SD Card LED(s)

  20. Risks/Concerns Cont’d • Schedule Uncertainty • Enough time to learn how to store data, battery operable, etc. • Prototype completed by the beginning of March? • Component Risks • Expensive Eval. Board • Sensor frame rate and resolution vs. size • Questionable Feasibility • Low level objectives seem obtainable • Can we make our mid/high level objectives?

  21. Market • Over 2 million laparoscopic surgeries performed each year • New laparoscopic surgeries are being introduced as technology improves • 6 million Trocar used each year

  22. Laparoscopic Surgery • Patient’s Point of View • Cheaper • $1,000 less than open surgery • Quicker Recovery • Hospital stay is 1/4th the time of open surgery • Post operative pain is less • Reduced infection rate

  23. Laparoscopic Surgery • Surgeon’s Point of View • Longer operative times • Expensive equipment • Requires extra surgical training • More complicated surgery • 1 in 2000 patients suffer vascular injuries • 17% of vascular injuries are fatal • Average surgical malpractice lawsuit = $222,285

  24. Our Goal • Make laparoscopic surgery more appealing to surgeon • Efficient • Faster Operative Times • Easier • Fewer mistakes • Less Surgical training • Safer • Less Crowded Operating Room

  25. Cost Per Surgery

  26. Environmental Impact • Biomedical Waste • 6 Million Trocar used and disposed each year • Removing 1 Trocar per surgery reduces number by 1-2 million • Potential for Reusability is important

  27. Sustainability • Part Availability • All parts can be obtained from variety of different vendors • Maintenance • Trocar are eventually disposed • Data storage device • Support • Training • Setting up data storage

  28. Projected Cost

  29. Manufacturability • Component tolerances may have effect on image quality • Testing • Development Board • Processor on a simple PCB • Regulations • FDA • FCC

  30. Safety • Laparoscopic Surgery • Dangerous Instruments • Complex Procedure • Crowded workspace • Exposure to patient blood • Our Goal • Reduce Complexity • Less Crowded

  31. Impact on Society • Safer, more efficient surgeries • Reduce number of assistants required for surgery • Potential for cheaper surgery • 3rd world surgery potential

  32. QUESTIONS?!?!

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