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A technique for using strain gauges to evaluate airbag interaction with cadaveric upper extremities.

Publication ,  Journal Article
Duma, SM; Bass, CR; Klopp, GS; Grillo, N; Micek, TJ; Crandall, JR; Pilkey, WD
Published in: Biomedical sciences instrumentation
January 1997

Radius and ulna fractures from airbag deployment onto the forearm have been reported in the literature. Based on laboratory experiments with eight cadaveric upper extremities, this paper presents a method for using strain gages to evaluate upper extremity loading during airbag deployment. The technique provides strain rates, bending moments, and time of fracture for the radius and ulna. Planar rosettes (350 omega, 5% strain) were selected as the best choice given the application to bone with a rosette being placed mid-shaft on both the anterior and posterior surfaces of the radius and ulna. Forearm incisions were intended to be minimally invasive and to limit damage to the interosseous membrane. The bone surface was prepared with Ether, and the gauges were bonded to the surface with methyl-2-cyanoacrylate. A thin latex cover was installed over the surface of the rosettes to isolate the gauges from the surrounding tissue. Strain relief of the gauges was provided by securing the wire leads to the bone with tie-wraps, as well as suturing the wires to the skin. With this technique all gauges reported accurate data throughout the duration of the impact.

Duke Scholars

Published In

Biomedical sciences instrumentation

ISSN

0067-8856

Publication Date

January 1997

Volume

33

Start / End Page

47 / 52

Related Subject Headings

  • Ulna Fractures
  • Ulna
  • Stress, Mechanical
  • Radius Fractures
  • Radius
  • In Vitro Techniques
  • Humans
  • Biomechanical Phenomena
  • Air Bags
 

Citation

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Duma, S. M., Bass, C. R., Klopp, G. S., Grillo, N., Micek, T. J., Crandall, J. R., & Pilkey, W. D. (1997). A technique for using strain gauges to evaluate airbag interaction with cadaveric upper extremities. Biomedical Sciences Instrumentation, 33, 47–52.
Duma, S. M., C. R. Bass, G. S. Klopp, N. Grillo, T. J. Micek, J. R. Crandall, and W. D. Pilkey. “A technique for using strain gauges to evaluate airbag interaction with cadaveric upper extremities.Biomedical Sciences Instrumentation 33 (January 1997): 47–52.
Duma SM, Bass CR, Klopp GS, Grillo N, Micek TJ, Crandall JR, et al. A technique for using strain gauges to evaluate airbag interaction with cadaveric upper extremities. Biomedical sciences instrumentation. 1997 Jan;33:47–52.
Duma, S. M., et al. “A technique for using strain gauges to evaluate airbag interaction with cadaveric upper extremities.Biomedical Sciences Instrumentation, vol. 33, Jan. 1997, pp. 47–52.
Duma SM, Bass CR, Klopp GS, Grillo N, Micek TJ, Crandall JR, Pilkey WD. A technique for using strain gauges to evaluate airbag interaction with cadaveric upper extremities. Biomedical sciences instrumentation. 1997 Jan;33:47–52.

Published In

Biomedical sciences instrumentation

ISSN

0067-8856

Publication Date

January 1997

Volume

33

Start / End Page

47 / 52

Related Subject Headings

  • Ulna Fractures
  • Ulna
  • Stress, Mechanical
  • Radius Fractures
  • Radius
  • In Vitro Techniques
  • Humans
  • Biomechanical Phenomena
  • Air Bags