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MedTG Needle Design

MedTG Needle Design. Steve Harris Adam Travis Brett Byram Group #15 Advisors: Gary Byram, Ph.D. Paul King, Ph.D., P.E. Problem. Patient IV injection and blood sampling => multiple needle sticks Excessive waste, biohazard Psychological damage, trauma

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MedTG Needle Design

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  1. MedTG Needle Design Steve Harris Adam Travis Brett Byram Group #15 Advisors: Gary Byram, Ph.D. Paul King, Ph.D., P.E.

  2. Problem • Patient IV injection and blood sampling => multiple needle sticks • Excessive waste, biohazard • Psychological damage, trauma • Time spent acquiring, lab time – for each stick • Many needle sticks, increased infection risk

  3. Valves & Ports Multi-lumen catheter Blood draw lumen IV administration lumen Sensor access orifices X Solution? • Combined needle design, multi-lumen • Multifunctional: sensors, blood drawing, injection

  4. Why not just turn off the IV fluid draw blood and turn the IV fluid back on? • Most RNs will not allow an IV to be shut off without direct consent from the doctor • In order to get clean draws with a syringe the blood must be drawn on the opposite side or in a more peripheral location • Using a vacutainer on an IV needle sucks up IV fluid as well as blood.

  5. Device Function • Sensor-IV catheter placed into peripheral vein • Sensor-IV allows IV fluid administration or blood drawing WITHOUT re-sticking a new needle

  6. Device Function • Proximal end: micro-valve and pump system allows continual injection while drawing blood • 4 lumen: • Lateral sensors allow real-time blood monitoring • Blood draw lumen can also function as IV administration lumen

  7. Device Attributes • Disposable after 4-7 days of use (based on existing catheter lifetime) • Reusable pump unit • Device physical properties are similar to standard needle/catheter • Movement effects are unresearched

  8. Patent Search • Double lumen catheter for dialysis (6,666,842) • Constant inflow and outflow • Inserted in a peritoneal cavity • Triple lumen catheter (5,195,962) • Lumens for extraction and return • Third lumen may be used for drug delivery

  9. Market Size • According to a recent study completed in 2001 the disposable medical device industry is about 48.6 billion dollars a year. • Catheters and other infusion devices make up approximately 39.1% of this market. Information obtained from a study done by Freedonia

  10. Needle Costs • The target price for the needle is 20$ • The controller would be leased on a monthly basis target lease price would be 40$/month (the controller is reusable). • The estimated manufacture price is 8$ per needle and 150$ per controller

  11. Plan of Attack • Computational Model: CFD software • Physical Model: testing, rough design

  12. Proposed Schedule • December: lit review, begin comp model • January: comp modeling, begin physical testing with rough needle model • February – March: refine design parameters, continue testing • April: finish design, prepare presentation

  13. Up Coming Work • Tuesday February 3rd meeting with MedTG’s Gary Byram and Ben Close • Obtained access to CFDRC’s software now we need to learn to use it • Possibly make a trip down to Huntsville to visit CFDRC for a product demo • Begin to define initial parameters of the computer model

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