Effect of penetration rate on insertion force in trabecular bone biopsy

Mulligan, Renae, Yin, Ling, Lamont, Anthony, Peng, Zhongxiao, Forwood, Mark R., and Teoh, Swee Hin (2010) Effect of penetration rate on insertion force in trabecular bone biopsy. Materials Science Forum, 654-656. pp. 2225-2228.

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Bone biopsy is a common procedure in bone disease diagnoses, therapies and research. In this procedure, bone biopsy needles are inserted into bone tissues. Although needle insertion into bone is often essential for the diagnosis of bone diseases, the hard tissue-needle interactions are not quantitatively understood. In this paper, we describe a quantitative assessment of forces involved in insertion of healthy trabecular bone using clinically applied Jamshidi CrownTM bone biopsy needles of gauge 8 (4-mm diameter). The measured forces were related to the insertion depths up to 25 mm and insertion rates of 1 mm/s to 5 mm/s. At the initial insertion stage, a clear linear force-depth relation was measured. With the increase of the insertion depth, the forces increased nonlinearly. In the final stage of insertion, the forces increased much more quickly at the lower insertion rate than that at the higher insertion rate. The maximum insertion force reached approximately 1000 N when the insertion depth reached 25 mm at the insertion rate of 1 mm/s.

Item ID: 16049
Item Type: Article (Research - C1)
ISSN: 1422-6375
Keywords: penetration force, bone biopsy, needle, penetration rate, trabecular bone
Additional Information:

Volume title: PRICM7 (Pacific Rim International Conference on Advanced Materials and Processing)

Date Deposited: 27 Apr 2011 03:06
FoR Codes: 09 ENGINEERING > 0913 Mechanical Engineering > 091308 Solid Mechanics @ 100%
SEO Codes: 92 HEALTH > 9201 Clinical Health (Organs, Diseases and Abnormal Conditions) > 920199 Clinical Health (Organs, Diseases and Abnormal Conditions) not elsewhere classified @ 100%
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