1 / 52

Spring 2007

Spring 2007. SVAT Final Review. St. Vincent Pediatric Rehabilitation Center, Indianapolis. Services Inpatient Outpatient Mission Create a creative home-like environment for rehabilitation Increase the quality of life for each patient. SVAT Team. Projects Three projects

selena
Download Presentation

Spring 2007

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Spring 2007 SVAT Final Review

  2. St. Vincent Pediatric Rehabilitation Center, Indianapolis • Services • Inpatient • Outpatient • Mission • Create a creative home-like environment for rehabilitation • Increase the quality of life for each patient

  3. SVAT Team • Projects • Three projects • Quantitative Toy Measurement • Ventilator Transport • Augmentative and Alternative Communication • Communication with St. Vincent • Site Visits • Videoconferences • Therapists/project partnerships

  4. Quantitative Measurement Toy Team Spring 2007, Purdue University EPICS

  5. St Vincent’s Pediatric Patients • Pediatric patients have: • Cerebral Palsy 40% • Autism 30% • Orthopedic 10% • Brain injuries 5% • Muscular Dystrophy 5% • Genetic Disorders 5% • Down Syndrome 5% • Toy Team works with Moriah • Approximately 40 pediatric patients • Most are 4-7 years old

  6. St. Vincent’s Needs • Therapists at St Vincent’s currently measure muscular strength subjectively, or with a hand dynamometer • St Vincent’s Need: Want a way of measuring the muscular strength and reaction time of pediatric patients quantitatively

  7. Problems with Hand Dynamometer • Problems • Expensive • Too heavy for the child • Awkward to handle and squeeze for the child • Not fun

  8. How our Toys meet St Vincent’s Needs • Fun interactive toy for the children • Measures their reaction time and muscular strength quantitatively for the therapists • The physical and occupational therapists can use the output data to gage the effectiveness of the physical therapy and to see the progress of each pediatric patient

  9. Quantitative Measurement Toys • Whack-a-Mole • Delivered Generation 1 • Built Generation 2 Prototype • Squeeze-o-Meter

  10. Whack-a-Mole Generation 1 • Child hits the mole on the head with the mallet when the LED lights up • 15 iterations • Reaction Time Output on LCD screen: • Minimum • Maximum • Average

  11. Project Packaging(Whack-a-Mole Game Generation 1)

  12. Mode Select (EASY or HARD)

  13. Reaction Time Display

  14. Try Again

  15. Output Displayed on LCD Screen

  16. WAM Generation 2 • Similarities with WAM 1 • Will have two difficulty levels (Easy and Hard) • Use accelerometers and LEDs • LCD screen • Differences from WAM1 • Output Force Measurement only, not Reaction Time • 4 moles on railings to allow for different configurations • Build our own hardware (with PVC and springs)

  17. Components for WAM 2 • Mechanical Components • Target • Springs • Track • Electrical Components • Accelerometers • LEDs

  18. Schematic of WAM 2 Target

  19. Hardware of Target

  20. Schematic of WAM 2 Track

  21. Mock Track for WAM2

  22. Goals for Next Semester • Testing of springs • Variety of spring stiffnesses • Secure springs inside the targets • Finish construction of the track/railings • Testing and calibration of accelerometers • 3 axis accelerometers (Analog Devices) • z-axis acceleration • Soldered on to PCB (printed circuit board)

  23. Squeeze-O-Meter

  24. Reasons for Our Design • Engage muscles for both arms • Two positions • Arms extended • Biceps, Brachioradialis, Pectoralis Major, Triceps, Deltoids • Arms Close to Trunk • Biceps and Deltoids

  25. Squeeze-O-Meter Design

  26. Squeeze-O-Meter Design

  27. Prototype of Squeeze-O-Meter

  28. Representations of Colors • Yellow: Weak ( 0in – 2in of compression ) • Force: 0lbs – 6.8lbs • Blue : Medium ( 2in – 4in of compression ) • Force: 6.8lbs – 13.6lbs • Red : Strong ( 4in – 6in of compression ) • Force: 13.6lbs – 20.4lbs

  29. Sample Output

  30. Electronic Components 1. Movement Sensor- Linear Potentiometer Provides different voltage values depending on displacement values. 2. Lights- EL wires (Electro Luminescent) Provides better visual stimulation than any other LEDs or light bulbs. 3. Display- LCD Used to display the force and duration measurements.

  31. Mechanical Components 1.Lexan Tubes and disks Very durable. This allows the toy to be more durable in the environment where kids punch and kick the toy around. 2.Spring – with load of 3.4(lb/inch) 3.PVC Caps 4.Bearings- Bronze bushings Reduces friction between the cylinder and the handles.

  32. Goals for Next Semester • Finish building of the Squeeze–O-Meter. • Run accuracy tests and debug code. • Create a user’s manual and troubleshooting guide. • Deliver the toy and receive feedback for future projects.

  33. Spring 2007 AAC Team

  34. St. Vincent’s Problem • Our team is working with Amy Riego and Dana Stewart. • Work with young children with speech impairments. • They use various different devices. • Commercial devices are very expensive. • Health care for many children will only cover one device in a lifetime. • Need for cheaper alternatives to commercial devices.

  35. St. Vincent’s Current AAC Devices Picture Board Handheld Touch Screen Device • Aids in more complex communication • Easy to modify content • Ability to form phrases or use for simple word identification • Simple word identification • Time consuming to modify • Therapist records each word

  36. Project Specifications • Inexpensive • A communication tool that is significantly cheaper than commercially available solutions • Easy to use • Small learning curve for therapists and caretakers • Comfortable and customizable interface for patients • Versatile • Adaptable content for multiple user accounts • Customizable format for various communication and mobility levels

  37. Solution – Webpage and Touch Screen Interface • Solution: Use a touch screen interface with a website to help children communicate. • Website must be dynamic and customizable for each patient. • Previous semesters created a static website. • Website will mimic the concept of high end communication devices. • Buttons that play recorded voices. • Record sounds • Each patient has their own account.

  38. Work Done Last Semester • Communicator page was created. • Design of all pages complete. • Databases created.

  39. Work Done This Semester • Edit preferences page coded. • Administrator page coded. • Uploading script implemented. • Auto-resizing and inserting into the database with all pictures converted to jpeg format. • Java applet to record .mp3 sounds • Records, Saves and Inserted into database • Add and modify content page coded. • Purchased new server. • Migration to new server complete.

  40. Dynamic Implementation • Primarily utilizes PHP and MySQL database backend. • Three database tables are accessed by all users. • Users • stores the user information and preferences • Common Images • stores the path and description of the custom images for each user • Common Sounds • stores the path and description of the custom sounds for each user • Recursive Table • Stores the layout and functionality of each users communicator

  41. AAC Communicator Demo http://www.svat-aac.com/login.php

  42. Goals for Next Semester • Retrieve surveys on prototype. • Analyze feedback. • Make adjustments and design improvements. • Improve content available to all users. • Create more images and record full sentences. • Design input devices to integrate with website. • Investigate portability. • Handheld devices. • Investigate offline usability • For patients without internet but with a PC.

  43. Spring 2007 Final ReviewSVAT Vent Team Natalie Beltz, Greg Fenning, Catherine Wallace

  44. Project Goals • Developing a better transport method for staff at St. Vincent’s Pediatric Rehab. Center for infant patients on ventilators • Organize equipment to remove potential hazards to both child and staff • Consolidate equipment to decrease travel preparation time and difficulty

  45. Current Transport • Suction and oxygen tank hang off stroller handle • Apnea monitor and ventilator on 2nd extended seat • Ventilator back-up battery in basket under seats • Ambu bag on top of stroller canopy

  46. Current Design Constraints • Accessible controls on: • apnea monitor • ventilator screens • Easily access: • ambu bag • suction machine’s • “on” button • suction tube • Carry in as few trips as possible • Fit in St. Vincent’s stroller • Graco “Extended Duo Glider” • 2nd seat space: 25”x13”x25” • Made of an aporous material • Must withstand routine disinfection

  47. Suggestions in the manual: Place backup battery in the under-stroller basket Detach AC adapters and put in that same baseket Use human factors section to ease use Guides the location/orientation of equipment Since it only fits one way Since only certain equipment models fit Workability

  48. Workability • Dust cover allows equipment to be used with the carrier to remain in it when not in use • Keeps carrier in a “ready” state • Shouldn’t need to re-clean equipment • Strap around the back keeps carrier in stroller

  49. HF Methods • Color coded stickers • on equipment that can travel in the carrier (designate it as such) • Schematic equipment • Shapes indicate both location/orientation • Equipment labels • Text for reassurance of location/orientation • Numbers direct the order for most effective loading • Picture showing the properly loaded stroller 1. suction

  50. Upcoming work • Advisors hope to complete delivery checklist and deliver over the summer • Next Semester: • Collect feedback and assess • Redesign based on feedback • Seek for new material: • Aporous • Strong • Mass-producible • Lightweight • Can disinfect completely

More Related