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Advisors: Gary Byram, Ph.D.
MedTG Needle Design Steve Harris Adam Travis Brett Byram Group #15 Advisors: Gary Byram, Ph.D. Paul King, Ph.D., P.E.
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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
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Solution? Combined needle design, multi-lumen
Multifunctional: sensors, blood drawing, injection Valves & Ports Multi-lumen catheter Blood draw lumen IV administration lumen X Sensor access orifices
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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.
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Device Function Sensor-IV catheter placed into peripheral vein
Sensor-IV allows IV fluid administration or blood drawing WITHOUT re-sticking a new needle
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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
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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
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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
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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
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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
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Plan of Attack Computational Model: CFD software
Physical Model: testing, rough design
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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
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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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