Friction force evaluation for grasping in minimally invasive surgery

Özin M. C., SÜMER B., Koç İ. M.

TRIBOLOGY INTERNATIONAL, cilt.131, ss.167-173, 2019 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 131
  • Basım Tarihi: 2019
  • Doi Numarası: 10.1016/j.triboint.2018.10.041
  • Dergi Adı: TRIBOLOGY INTERNATIONAL
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.167-173
  • Anahtar Kelimeler: Laparoscopic grasper, Friction of tissue, Adhesion of tissue, TISSUE INTERACTION, SOFT-TISSUE, SENSOR, SKILLS
  • Hacettepe Üniversitesi Adresli: Evet

Özet

This study investigates direct and indirect measurement techniques for a typical laparoscopic operation in an ex vivo experiment. The direct measurement technique involves obtaining contact forces at the tissue-tool level. The indirect measurement technique involves acquiring contact forces without compromising the contact surface. The two techniques are compared in terms of the friction force. This estimation is important to ensure that grasping is stable so that tissue sliding is avoided. The results demonstrate that direct measurement is better at measuring the pinch force and estimating the friction force because of the alteration of the force center. However, integration of the tactile sensor into the tool tip increases the pull-off force by approximately 44%.