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

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

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.

Original languageEnglish
Article number85
JournalBMC Research Notes
Volume15
Issue number1
DOIs
Publication statusPublished - 2022 Dec

Keywords

  • Debris dispersion
  • Dissemination risk
  • Evaluation method
  • Optical absorbance
  • Pulsed water jet

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)

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