tracheostomy care overlay system j. biggs, d. bond, n. campagnola, e. doll, n. hott advisor: dr....
TRANSCRIPT
Tracheostomy Care Overlay SystemJ. Biggs, D. Bond, N. Campagnola, E. Doll, N. Hott
Advisor: Dr. Liyun P. WangSpecial Thanks to: Amy Cowperthwait
UD Healthcare Theatre Program: Simulation laboratories that are operational with real life patient simulators allowing nursing students to experience realistic patient care.
Background
Tracheostomy Care: Cleaning, replacing and suctioning of the tracheostomy tube, changing the dressing around the stoma, as well as cleaning the area around the stoma; all of which require minimal manipulation of the face plate.
Project Scope
The UD Healthcare Theatre Program is looking to improve upon the current training mannequins by developing a wearable system for a real life patient simulator that will provide nursing students with realistic, tracheostomy care patient feedback during simulations.
Design RequirementsThe following six needs are ranked according to importance:
1. Safety 2. Realistic 3. Ease of Use 4. Cost Effective 5. Durable 6. Comfort
Metrics Target Values ReferenceFDA safety regulation
preparationClass 3 testing Appendix A
Number of Trigger Actions 3 Sponsor
Number of Lung Sounds4(clear, mucus, fluid,
collapsed)Sponsor
Location of lung sounds (in)1" radius around 4 standard locations
Testing with Sponsor
Allowable force applied to faceplate (lbs)
2.2 lbsTesting with
SponsorAllowable rotation of
faceplate (deg)4.094 deg from
horizontalTesting with
Sponsor
Simulator notifications cannot be detected by nurse
Yes Sponsor
Installation time (minutes) 10-15 minutesSimulation debriefing
time, Duration of simulation
(minutes)> 20 minutes Sponsor
Final Prototype
Concept Generation
Lung Sound Speakers and Control:
1. Wireless control 2. Wired control
2. Spring and Circuit Sensor:
1. Tactile Force Sensor
Force/Rotation Detection:
Prototype Testing and Validation
To test the design, a prototype of our final concept was built. This prototype allowed for testing of each component as well as system level testing. Additionally, testing was able to be performed with UD Healthcare theatre actors , as well as nursing students and
Customer Survey Review
Survey results showed that it functions well as a learning device, as the sensors identified improper tracheostomy care accurately and the alerts can only be detected by the simulators. For comfort and ease of use, it was found that the device was easy to put on and take off, but that the comfort could be improved upon. Overall, the overlay system was thought to be more realistic, in appearance, than the current training mannequins and will enhance the tracheostomy care learning experience for nursing students.
faculty to provide feedback on how realistic the device is, as well as its comfort and ease of use.
Path Forward
With funding from UD’s First Step Program, the team will continue to work on the overlay system by improving on the current prototype. The team will focus on improving the user interface for lung sound control, while also making the overlay more adaptable to a wider variety of body types. There will also be work done on the sensor system to increase individual sensor accuracy. After improvements have been made, the team will work on making the overlay more marketable with the ultimate goal of producing it on a large scale.
Sensor Threshold Tests
Target threshold values were found through background research and testing with our sponsor
Test Target Value Measured Value
Force on Faceplate 2.2 lbs 2.19 ± 0.08 lbs
Rotation of Faceplate 4.01 deg 5 ± 1 degBronchial Biforcation
Touched - Yes
Wireless control was chosen because it allowed for greater mobility and faster overlay set-up time
Tactile force sensors were used due to the ability to give more accurate sensor readings and calibration
The final design consists of two molded, thermop-lastic layers, encasing and protecting all of the inner components. These inclu-de the sensor system and lung sound speakers. To the right is the entire, assembled prototype. The picture below shows the inner compone-nts of the device.