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SimMan Improvements

SimMan Improvements . Advisors: Dr. Matt Weinger, MD Ray Booker Group Members: Robert Amponsah (EECE) Bobby Gibbons (BME) Brandon Miller (BME) Evans Mize (BME) Daniel Schuler (BME/EECE). SimMan Training simulator Mid fidelity Lacks aspects of patient response. Project Description.

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SimMan Improvements

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  1. SimMan Improvements Advisors: Dr. Matt Weinger, MD Ray Booker Group Members: Robert Amponsah (EECE) Bobby Gibbons (BME) Brandon Miller (BME) Evans Mize (BME) Daniel Schuler (BME/EECE)

  2. SimMan Training simulator Mid fidelity Lacks aspects of patient response Project Description

  3. Areas to improve: Electric stimulation and seizure Central Line placement Improvements

  4. Goals • Increased realism • Increased capability • Improved training quality • Reduced cost vs. METI implementation

  5. Central Line Cost • Central line man : $16,000 • SimMan: $30,000 • METI: $240,000

  6. Central Line Placement • Two placement locations • Subclavian • Neck • Converge to Superior Vena Cava

  7. SimMan Design • Subclavian and Neck Paths • Exit through pelvis and table • Collection Bucket beneath table

  8. Materials • Y-Connector • 5/8” tubing splicer • ¼” latex tubing • ½” vinyl tubing • 5/16” vinyl tubing • Velcro Strips • High Density Foam • 3” mending plates • Injection ports • Blood colored fluid for veins and arteries • Drainage value

  9. Chest Plate Modifications • Electronics presents so it can NOT leak. • Need proper access angle • Change tubing in and out of chest plate

  10. Central Line Current Status • Final testing and assembly • Tubing installation

  11. Electrical Cardioversion Importance • 86% that receive cardioversion return to normal sinus rhythm • 94% that receive medication before the cardioversion return to normal sinus rhythm • Normal sinus rhythm required to be judged stable enough for surgery

  12. Goals of Electrocardioversion • Simulate a human’s reaction to electrical cardioversion. • Imitate a Seizure. • Choosing the most economical devices • Each should present perfect simulations • Satisfy sponsors with design, implementation, and final product

  13. Design for Each Simulation • Design modified sponsor’s requests and constraints with table • Three pistons are setup under SimMan and embedded in table • One piston on each shoulder blade • Third piston attached to a lever, pushing up hips • Velcro used to keep piston and SimMan together

  14. Parts and Prices • Regulator (1)– given to us by sponsor • Connectors and hoses (many)- $60 • Manifold (1)-$18.65 • Solenoids (3) – 85.20 each – $255.60 total • Pistons(3) - 117.41 each - $352.23 total • Crimps and wiring (many) - $10 • Overall Total – $696.48 ~ $700

  15. Regulator • Secured on top of Air Tank • Gauges tank pressure and ‘regulates’ output pressure • Multiple fittings for varying line hookups

  16. Manifold -Intakes regulated pressure from regulator -Distributes even pressure among three different Lines -Secures firmly to bed bottom

  17. Solenoids • 3/2 setup • 24 V and 1.28W impulse switches lines • Punch button switching mechanism • Reset capabilities • Works perfectly with piston

  18. Pistons • Two valve control • Works perfectly with solenoid • Pressure range is well within range • Rugged

  19. Problems Encountered • Late delivery of Products (March 1st -March 25th) • Obvious Necessity for Solenoids • Solenoid Activation is unclear • Lack of Adequate Workshop tools • Limitation to Working Hours in Workshop (10AM-5PM)

  20. Plans to finish • Solenoid switching mechanism – today • Protoype testing - next week • Optimal Pressure determined – next week • Impulse speed for Seizure simulation – two weeks (Mid-April)

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