BMC Research Notes (Mar 2022)

Methodological assessment of the reduction of dissemination risk and quantification of debris dispersion during dissection with a surgical aspirator

  • Sosuke Kageyama,
  • Atsuhiro Nakagawa,
  • Tomohiro Kawaguchi,
  • Kiyonobu Ohtani,
  • Toshiki Endo,
  • Manabu Kyan,
  • Tetsuya Kusunoki,
  • Yoshiteru Shimoda,
  • Shin-Ichiro Osawa,
  • Masayuki Kanamori,
  • Niizuma Kuniyasu,
  • Teiji Tominaga

DOI
https://doi.org/10.1186/s13104-022-05947-y
Journal volume & issue
Vol. 15, no. 1
pp. 1 – 6

Abstract

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Abstract Objective We developed an actuator-driven pulsed water jet (ADPJ) device to achieve maximal lesion dissection with minimal risk of normal structural damage. Despite the unique dissection characteristics, there is a risk of dissemination of tissue dispersion; however, there is no established method to quantify the dispersion. Hence, this study aimed to assess the factors associated with dispersion and propose a simple experimental method using spectrophotometry to evaluate the degree of dispersion in a wet field. Results Methylene blue-stained brain phantom gelatin was immersed in a chamber with distilled water solution and dissected with an ADPJ. The dispersed gelatin solution was stirred and warmed to dissolve. The absorbance of the solution was measured spectrophotometrically. First, a reference standard curve was constructed to confirm the relationship between the absorbance and the amount of the dispersed gelatin. A clear proportional correlation was observed, which indicated that absorbance measurements can help evaluate the amount of dispersion. Using this method, we revealed that a high dissection force, insufficient suction, and inappropriate long distance between the nozzle tip and the target were associated with increased dispersion. This method might constitute a versatile and reliable approach to evaluate dispersion and aid in the development of surgical devices.

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