Fracture Finder Yellow A Ineffective Diagnosing Common Concerns - - PowerPoint PPT Presentation

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Fracture Finder Yellow A Ineffective Diagnosing Common Concerns - - PowerPoint PPT Presentation

Jan 25, 2024 284 likes •409 views

Fracture Finder Yellow A Ineffective Diagnosing Common Concerns from Athletes, Doctors, and Trainers Stress injuries comprise 15% of runner injuries Stress fractures only show up 10% of time on x-ray Too long, difficult, and

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SLIDE 1

Fracture Finder

Yellow A

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SLIDE 2

Ineffective Diagnosing

  • Stress injuries comprise 15% of runner

injuries

  • Stress fractures only show up 10% of

time on x-ray

  • Too long, difficult, and expensive to get

an MRI

Common Concerns from Athletes, Doctors, and Trainers

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SLIDE 3

Design Concept

  • Measures acoustic response

through bone

  • Compares healthy bone to

injured bone to test for fracture

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SLIDE 4

Detection Process

Step 2

Record response from two ends of the bone

Step 3

Analyze the results in MATLAB

Step 1

Sweep from 20 Hz to 3 kHz

Step 4

Determine presence of stress fracture

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SLIDE 5

CUSTOMER NEED PRODUCT ATTRIBUTE ENGINEERING SPECIFICATION

Gives results within one appointment Time to give results (mins) < 10 mins Accurately diagnose stress fractures Percent false detection <5% Easily used by single person # parts to constrain at a time <2

Product Contract

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SLIDE 6

Key risks

Data collection Trainer accessibility Diagnosis Criteria

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SLIDE 7

Data Collection

Bone-Conduction Headphones Dual-Head Stethoscope

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SLIDE 8

Trainer Accessibility

User tests with trainers showed that straps were the best model

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SLIDE 9

Trainer Accessibility

User tests with trainers showed that straps were the best model

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SLIDE 10

Diagnosis Criteria

  • We conducted bench tests with wood to analyze fracture data
  • Pig legs were used to test real bone
  • Useful PSD analysis for wood, but not pig leg
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SLIDE 11

Next Steps

  • Experiment on human stress fractures
  • Diagnose human stress fracture
  • Create simple user interface
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SLIDE 12

https://www.asics.com/us/en-us/lyteracer/p/0020003790.750 (shoe image) https://academic.oup.com/endo/article/139/2/663/2987138 (human/animal bone comparison) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4811848/ (stress fractures normally transverse) https://www.obimed.com/wp-content/uploads/2016/05/A-Novel-Method-of-Detecting-Fractures-Via-Smartphone-final.pdf (acoustic fracture detector) US20170150885A9, US20140100473A1 (similar patents)

References