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Laparoscopic Smart Instrument for Detection of Nearby Anatomy During Prostatectomy

A laparoscopic smart instrument with a tip sensor that detects nearby anatomy during prostatectomy, enabling precise nerve bundle and deep vessel identification. This instrument improves accuracy and reduces the risk of complications.

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Laparoscopic Smart Instrument for Detection of Nearby Anatomy During Prostatectomy

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  1. Laparoscopic Smart Instrument for Detection of Nearby Anatomy During Prostatectomy Ania Warczyk Shivani Shah Alia Durrani Timothy Chen BME 272 Fall 2007

  2. Problem Statement • Construct a laparoscopic smart instrument with a sensor at the tip to detect nerve bundles and deep vessels during prostatectomy • Would have the ability to dig into fat • Compatibility with the Da Vinci robot

  3. Background: Current Methods • Prostatectomy: surgical removal of all or part of the prostate gland • Abnormalities such as a tumor or gland enlargement can restrict flow of urine along urethra • Open prostatectomy very invasive; involves skin incisions while surgeon visualizes the surrounding anatomy – not foolproof • Laparoscopic prostatectomy allows for smaller incisions, less pain, less bleeding, less risk of infection, and faster healing time

  4. Background: Da Vinci • Laparoscopic or four small incisions are made in the abdomen, and the entire prostate is removed while attempting to spare nerves • A need to discern between anatomy during prostatectomy to avoid surrounding vessels and nerves • Robot gives the surgeon much more dexterity than conventional laparoscopy while offering the same advantages over open prostatectomy

  5. Project Goals • Design a device can address the problem that occurs during invasive surgery of tools/instruments hitting nerve bundles • The device should be capable of the following: • Detect for the presence of nerve bundles • Map nerve position in relation to other intended targets • Coordinate with EM tracking for increased tip-to-target accuracy and real-time guidance during nerve detection Nerve Bundles

  6. Solution • Design a laparoscopic tool with a sensor at the tip to detect nerve bundles • Utilize stored spikes that are deployed from the instrument once inside the body instead of previously used strain gauges to dig into surrounding fat and come close to a nerve bundle

  7. Completed Work • Maintained continuous contact with PI • Researched previous methods utilized for prostatectomies and other surgeries • Found patents for methods of locating nerve bundles • Constantly updated website

  8. Current Work • Researching different methods for locating nerves • Nerve Mapping • Electrical Stimulation • Ultrasonography

  9. Future Work • Request funds from NIH to obtain materials. These materials will allow us to begin putting together possible prototype designs • Observe a prostectomy to understand the use of the device we are creating • Da Vinci robotic surgery, preferably

  10. Da Vinci Robotic Surgery

  11. Conclusions • Robot-assisted laparoscopic prostatectomy is less invasive and more accurate • Discerns between anatomical structures • Inaccuracy in prostatectomy can lead to: • ED • Ruptured blood vessels

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