Immobile Ocular Perfusion Pump

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Immobile Ocular Perfusion Pump

• Kelly Clause, Senthil Premraj, Brad Lomago
• Puwat Charukamnoetkanok

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Background

• Ocular perfusion pumps have been implemented
  outside of the ICU and surgical settings in which
  self-lubrication or manual lubrication is not
  available or convenient.
• Our pump is immobile and is to be used in the ICU
  or surgical setting to decrease the time nursing
  personnel would spend lubricating the eyes of
  patients who cannot perform this function on
  their own.

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Personal Responsibilities

• Components
• Fluid pump/ reservoir
• Delivery Mechanism
• Spray Mechanism

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Spray mechanism

• Based on experiments done in Dr. Kamenevas lab
• There is a minimum of 8 ml/min flow rate needed
  to have the mechanism spray
• This equates to a 60 mmHg pressure.

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Delivery mechanism

• Using Hagen Poiseuille determined the inner
  diameter of the sprayer was 0.06 inches
• The diameter needed of the delivery mechanism,
  silicone tubing, is being calculated based on the
  height needed to maintain the 60 mmHg pressure
  and the varying widths possible.

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Fluid pump

• Because the 8 ml/min flow rate is much higher
  than the amount of fluid we are going to be
  spraying, and is too small for any researched
  fluid pumps on the market for based on the 0.06
  in. diameter
• Based on experimentation with the spray
  mechanism, and silicone tubing with an inner
  diameter of 3/8 in, done in Dr. Shroffs lab, we
  concluded that gravity was enough to maintain the
  pressure needed and that we Do not need a fluid
  pump

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Personal Accomplishments

• Components
• Fluid pump/ reservoir do not need, reservoir
  will be IV bag able to hold at least 50 mL
• Delivery Mechanism still experimenting on the
  relationship of size to height to maintain the 60
  mmHg needed
• Spray Mechanism determined the characteristics
  of it further experimentation on the size of the
  droplets and area of spray when the nosepiece is
  designed