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Johns Hopkins Motor

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... Engineers at the Johns Hopkins Urology Robotics Lab located between Maryland and ... It is no wonder that this invention was derived from this particular lab. ... – PowerPoint PPT presentation

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Title: Johns Hopkins Motor


1
Johns Hopkins Motor Pneu Step
  • The Surgical hand of the future

2
Pneu Step
  • Developed by the Engineers at the Johns Hopkins
    Urology Robotics Lab located between Maryland and
    Washington D.C
  • It is no wonder that this invention was derived
    from this particular lab. Over 100 medical
    devices have been produced here.

3
Pneu Step
  • This invention dubbed Pneu Step is a new motor
    that is going to be the new hand in biopsies,
    therapies, and MRIs.
  • It is made entirely out of plastics, ceramics and
    rubber, and driven by light and air.

4
Pros of Pneu Step
  • Biopsies have been performed blind up to this
    point with our present day imaging tools. Now
    this motor and robot can target tumors.
  • Since the motor is made without metal or
    electricity, this should increase accuracy in
    locating and collecting tissue samples, reduce
    diagnostic errors and also improve therapy.
  • The motor that drives the devices can be so
    precisely controlled by computer that movements
    are steadier and more precise than a human hand.

5
Pneu Step
  • No other motor satisfies the combined MRI
    compatibility, medical safety, and reliability
    required for precision MRI instrumentation
  • Encoding was performed with fiber optics so that
    the motors are electricity free, exclusively
    using pressure and light

6
How Precise?
  • This robot moves slowly but very precisely.
  • In fact, experiments show that the needle always
    comes within a millimeter of the target now with
    this new motor.

7
How It Works
  • The gears are turned by air flow, which is in
    turn controlled by a computer located in a room
    adjacent to the MRI machine.
  • The robot goes alongside the patient in the MRI
    scanner and is controlled remotely by observing
    the images on the MR.
  • The motor is rigged with fiber optics, which
    feed information back to the computer in real
    time, allowing for both guidance and
    readjustment.

8
Problems
  • The strong magnetic interference was a huge issue
    before. This caused the distortion of MR images
    and big diagnostic errors.
  • Also was the issue of accuracy which has vastly
    improved since doctors are not guessing when
    going in blind and are now equipped with better
    images.
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